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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Derivative Instruments in Statement of Financial Position at Fair Value) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) contracts	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Derivative [Line Items]
Long-term debt, less current portion	$ 5,084.6	$ 5,331.2
Foreign Currency Contract, Asset, Fair Value Disclosure	274.0	142.7
Cross currency swaps liability	274.0	142.7
Derivative Instruments in Statement of Financial Position at Fair Value
Derivative, Interest Rate Swap	500.0
2029 Swap Agreements
Derivative [Line Items]
Derivative, Notional Amount	300.0
2031 and 2034 Swap Agreements
Derivative [Line Items]
Derivative, Notional Amount	300.0
2029 and 2034 Swap Agreements
Derivative [Line Items]
Derivative, Notional Amount	600.0
2034 Swap Agreements
Derivative [Line Items]
Derivative, Notional Amount	300.0
Currency Swap [Member]
Derivative [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	$ (131.3)	$ (33.7)	$ (63.3)
Swap
Derivative [Line Items]
Number Of Foreign Currency Derivatives Held \| contracts	5
Number Of Foreign Currency Derivatives Held \| contracts	2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)

12 Months Ended

Dec. 31, 2025

Derivative [Line Items]

Derivative Instruments, Gain (Loss) [Table Text Block]

The table below provides information regarding the location and amount of pretax losses of derivatives designated in fair value hedging relationships:


	Amounts included in other comprehensive income
	Year Ended December 31,
	2025		2024		2023

Cross currency swaps	$	(131.3)	$	(33.7)	$	(63.3)

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 877.7	$ 747.1	$ 419.2
Earnings from discontinued operations, net of tax	0.0	0.0	(38.8)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	681.1	643.5	577.3
Stock compensation	125.8	116.7	128.7
Operating lease right-of-use asset expense	208.1	185.3	168.0
Asset Impairment Charges	4.3	5.3	349.0
Non-cash portion of Restructuring and other charges	101.3	0.0	0.0
Deferred income taxes	97.6	(20.1)	(78.1)
Other, net	70.7	62.1	38.9
Change in assets and liabilities (net of effects of acquisitions and divestitures):
Increase in accounts receivable	(125.5)	(52.3)	(103.8)
Decrease in unbilled services	3.3	30.4	28.5
Increase in supplies inventory	(30.2)	(12.6)	(0.7)
Increase in prepaid expenses and other	(25.2)	(54.5)	(25.8)
(Decrease) increase in accounts payable	(52.8)	72.1	(42.4)
Increase (decrease) in unearned revenue	34.6	(24.6)	105.5
Decrease in accrued expenses and other	(330.3)	(112.6)	(323.2)
Net cash provided by continuing operating activities	1,640.5	1,585.8	1,202.3
Net cash provided by discontinued operating activities	0.0	0.0	125.4
Net cash provided by operating activities	1,640.5	1,585.8	1,327.7
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(434.5)	(489.9)	(453.6)
Purchase of equity affiliates or other investments	(192.4)	(55.0)	(29.0)
Proceeds from sale of assets	8.0	2.0	0.6
Proceeds from sale or distribution of equity affiliates or other investments	6.9	0.0	6.7
Proceeds from sale of business	0.0	15.1	0.0
Acquisition of businesses, net of cash acquired	(582.0)	(839.0)	(671.5)
Net cash used for continuing investing activities	(1,194.0)	(1,366.8)	(1,146.8)
Net cash used for discontinued investing activities	0.0	0.0	(24.7)
Net cash used for investing activities	(1,194.0)	(1,366.8)	(1,171.5)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior note offerings	0.0	2,000.0	0.0
Payments on senior notes	(1,000.0)	(1,000.0)	(300.0)
Proceeds from accounts receivable securitization	225.0	300.0	0.0
Proceeds from revolving credit facilities	64.8	2,463.7	2,488.2
Payments on revolving credit facilities	(64.8)	(2,463.7)	(2,488.2)
Net share settlement tax payments from issuance of stock to employees	(31.9)	(46.4)	(39.8)
Net proceeds from issuance of stock to employees	54.3	56.2	54.4
Dividends paid	(240.7)	(243.1)	(254.0)
Purchase of common stock	(450.0)	(250.1)	(1,000.0)
Other, net	(13.7)	(36.7)	(19.6)
Net cash (used for) provided by continuing financing activities	(1,457.0)	779.9	(1,559.0)
Net cash provided by discontinued financing activities	0.0	0.0	1,499.7
Net cash (used for) provided by financing activities	(1,457.0)	779.9	(59.3)
Effect of exchange rate changes on cash and cash equivalents	24.1	(17.0)	9.9
Net (decrease) increase in cash and cash equivalents	(986.4)	981.9	106.8
Cash and cash equivalents at beginning of period	1,518.7	536.8	430.0
Cash and cash equivalents	$ 532.3	$ 1,518.7	$ 536.8

OTHER LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Other Liabilities Disclosure [Abstract]
Deferred compensation plan obligation	$ 150.5	$ 132.5
Defined-benefit plan obligation	60.4	59.5
Worker’s compensation and auto	50.8	46.5
Cross currency swaps liability	274.0	142.7
Other	112.1	136.2
Total Other liabilities	$ 647.8	$ 517.4

DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions		12 Months Ended
DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions	Sep. 23, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
2024 Senior Notes	$ 2,000.0
4.35% senior notes due 2030		$ 650.0	$ 650.0
4.55% senior notes due 2032		500.0	500.0
4.80% senior notes due 2034		850.0	850.0
Proceeds from Debt, Net of Issuance Costs	$ 1,983.0
Repayments of Lines of Credit		64.8	2,463.7	$ 2,488.2
Intangible assets, net		$ 3,596.0	$ 3,488.9
Senior notes due 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			2.30%
Senior Notes due 2025 paid in 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.60%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Future Payments on Revolving Credit Facility		$ 500.0

RESTRUCTURING AND OTHER CHARGES

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

RESTRUCTURING AND OTHER CHARGES

. RESTRUCTURING AND OTHER CHARGES

Restructuring and other charges represent amounts incurred in connection with the elimination of redundant positions and facilities within the organization in connection with cost saving initiatives, the Spin-off, and acquisitions or dispositions of businesses by the Company.

The components of Restructuring and other charges were as follows:


	Year Ended December 31,
	2025		2024		2023
Severance and other personnel costs	$	27.2	$	43.0	$	33.4
Facility-related costs	17.9		5.9		22.3
Contract termination costs	13.9		—		—
Long-lived asset impairment and other non-cash charges	101.3		—		—
Reversal of previously established restructuring accruals	(33.1)		(2.9)		(6.6)
Total Restructuring and other charges (1)	$	127.2	$	46.0	$	49.1

(1)Includes $105.5 of costs and charges associated with the restructuring of ED for the year ended December 31, 2025, which mainly consisted of impairment charges related to property, plant, and equipment, intangible assets, and other assets of $61.4, $16.0, and $8.2, respectively.

The activity within the restructuring liabilities established were as follows:


	Severance and Other Personnel Costs		Facility-related Costs		Contract Termination Costs		Total
Liability balance at December 31, 2023	$	7.6	$	13.0	$	—	$	20.6
Restructuring charges	43.0		5.9		—		48.9

Reduction of prior restructuring accruals	(2.5)		(0.4)		—		(2.9)
Cash payments and other adjustments	(39.7)		(5.6)		—		(45.3)
Liability balance at December 31, 2024	8.4		12.9		—		21.3
Restructuring charges	27.2		17.9		13.9		59.0

Reduction of prior restructuring accruals	(2.5)		(30.6)		—		(33.1)
Cash payments and other adjustments	(32.1)		4.7		—		(27.4)
Liability balance at December 31, 2025	$	1.0	$	4.9	$	13.9	$	19.8
Liability balance classified as current							$	7.8
Liability balance classified as non-current							12.0
Total liability balance at December 31, 2025							$	19.8

The non-current portion of the restructuring liability balance is expected to be paid out over 2.5 years.

PROPERTY, PLANT AND EQUIPMENT, NET - USEFUL LIVES (Details)	Dec. 31, 2025
Minimum [Member] \| Buildings and building improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	10 years
Minimum [Member] \| Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	3 years
Minimum [Member] \| Software
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	3 years
Minimum [Member] \| Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	5 years
Maximum [Member] \| Buildings and building improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	55 years
Maximum [Member] \| Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	10 years
Maximum [Member] \| Software
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	10 years
Maximum [Member] \| Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	10 years

STOCK COMPENSATION PLANS

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

STOCK COMPENSATION PLANS

Stock Incentive Plans

In May 2025, the shareholders approved the Labcorp Holdings Inc. 2025 Omnibus Incentive Plan (the 2025 Plan). Under the 2025 Plan, at December 31, 2025, there were 3.1 shares authorized for future issuance and 3.0 shares available for future grant. With the adoption of the 2025 Plan, there are no shares authorized for future issuance or future grant under the previous Labcorp Holdings Inc. Amended and Restated 2016 Omnibus Incentive Plan.

Stock Options

The following table summarizes grants of non-qualified options made by the Company to officers, key employees, and non-employee directors under all plans. Stock options are typically granted at an exercise price equal to or greater than the fair market price per share on the date of grant, vest ratably over a period of three years on the anniversaries of the grant date, and have a contractual exercise period of 10 years subject to their earlier expiration or termination.

Changes in options outstanding were as follows:


	Number of Options	Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2024	0.6	$	180.29
Granted	0.1	$	245.14


Outstanding at December 31, 2025	0.7	$	187.16	4.9	$	43.7

Exercisable at December 31, 2025	0.5	$	174.47	3.9	$	41.1

Cash received by the Company from option exercises, the actual tax benefit realized for the tax deductions and the aggregate intrinsic value of options exercised from option exercises under all share-based payment arrangements were as follows:


	Year Ended December 31,
	2025		2024		2023
Cash received by the Company	$	2.5	$	6.5	$	2.9
Tax benefits realized	$	0.6	$	1.6	$	0.7
Aggregate intrinsic value	$	1.4	$	1.6	$	0.7

The following table shows the weighted-average grant-date fair values of options issued during the respective year and the weighted-average assumptions that the Company used to develop the fair value estimates:



	Year Ended December 31,
	2025			2024			2023
Fair value per option	$	83.22		$	73.08		$	72.27

Weighted-average expected life (in years)	6.0			6.0			6.0
Risk free interest rate	4.4		%	4.1		%	3.4		%
Expected volatility	29.7		%	30.0		%	29.8		%
Expected dividend yield	1.2		%	1.3		%	1.4		%

The Black-Scholes model incorporates assumptions to value stock-based awards. The risk-free interest rate for periods within the contractual life of the option is based on a zero-coupon U.S. government instrument over the contractual term of the equity instrument. Expected volatility of the Company’s stock is based on historical volatility of the Company’s stock. The Company estimates expected option terms through an analysis of actual, historical post-vesting exercise, cancellation and expiration behavior by employees and projected post-vesting activity of outstanding options. Groups of employees and non-employee directors that have similar exercise behavior with regard to option exercise timing and forfeiture rates are considered separately for valuation purposes. For 2025, 2024, and 2023, expense related to the Company’s stock option plan totaled $5.9, $5.2, and $3.8, respectively.

Restricted Stock, Restricted Stock Units and Performance Shares

The Company grants restricted stock, restricted stock units, and performance shares (non-vested shares) to officers and key employees and grants restricted stock and restricted stock units to non-employee directors. Restricted stock and units typically vest annually in equal one-third increments beginning on the first anniversary of the grant. A performance share grant in 2023 represents a three-year award opportunity for the period 2023-2025, and if earned, vests fully (to the extent earned) in the first quarter of 2026. A performance share grant in 2024, represents a three-year award opportunity for the period of 2024-2026 and, if earned, vests fully (to the extent earned) in the first quarter of 2027. A performance share grant in 2025, represents a three-year award opportunity for the period of 2025-2027 and, if earned, vests fully (to the extent earned) in the first quarter of 2028. Performance share awards are subject to certain earnings per share, revenue, and total shareholder return targets, the achievement of which may increase or decrease the number of shares which the grantee earns and therefore receives upon vesting. Unearned restricted stock and performance share compensation is amortized to expense, when probable, over the applicable vesting periods. For 2025, 2024, and 2023, total restricted stock, restricted stock unit, and performance share compensation expense was $104.8, $96.6, and $111.1, respectively.

The following table shows a summary of non-vested shares for the year ended December 31, 2025:


	Number of Shares	Weighted-Average Grant Date Fair Value
Beginning balance	0.9	$	226.44
Granted	0.5	$	251.06
Vested	(0.4)	$	226.54
Canceled	(0.1)	$	235.13
Ending balance	0.9	$	237.94

Unrecognized Compensation Cost

At December 31, 2025, there was $106.2 of total unrecognized compensation cost related to non-vested stock options, restricted stock, restricted stock unit, and performance share-based compensation arrangements granted under the Company’s

stock incentive plans. That cost is expected to be recognized over a weighted-average period of 1.7 years and will be included in Cost of revenues and Selling, general, and administrative expenses in the Consolidated Statements of Operations.

Employee Stock Purchase Plan

In May 2025, the shareholders approved the Labcorp Holdings Inc. 2025 Employee Stock Purchase Plan (the ESPP Plan), which replaced the 2016 Employee Stock Purchase Plan. Under the ESPP Plan, the Company is authorized to issue 2.5 shares of Common Stock. The ESPP Plan permits substantially all U.S., Canada, and U.K. employees to purchase a limited number of shares of Company stock at 85% of market value. The Company issues Common Stock to participating employees semi-annually in January and July of each year. Approximately 0.3 shares were purchased by eligible employees in 2025, 2024, and 2023. For 2025, 2024, and 2023, expense related to the Company’s employee stock purchase plans were $15.1, $14.9, and $13.8, respectively.

The Company uses the Black-Scholes model to calculate the fair value of the employee’s purchase right. The fair value of the employee’s purchase right and the assumptions used in its calculation are as follows:


	Year Ended December 31,
	2025			2024			2023
Fair value of the employee’s purchase right	$	49.33		$	47.56		$	49.19
Valuation assumptions:
Risk free interest rate	4.3		%	5.0		%	5.0		%
Expected volatility	22.8		%	27.9		%	30.0		%
Expected dividend yield	1.2		%	1.3		%	1.4		%

GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 280.0	$ 256.4	$ 219.8
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense, 2026	290.0
Estimated amortization expense, 2027	277.2
Estimated amortization expense, 2028	269.4
Estimated amortization expense, 2029	256.3
Estimated amortization expense, 2030	247.0
Estimated amortization expense, Thereafter	$ 1,696.9

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details

GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The balances, net of impairment, and changes in the carrying amount of goodwill were as follows:


	Dx				BLS				Total
	December 31, 2025		December 31, 2024		December 31, 2025		December 31, 2024		December 31, 2025		December 31, 2024
Beginning Balance	$	5,102.5	$	4,813.9	$	1,267.2	$	1,328.6	$	6,369.7	$	6,142.5
Goodwill acquired, excluding measurement period adjustments	287.8		390.5		—		—		287.8		390.5



Foreign currency impact and other adjustments to goodwill	44.5		(101.9)		87.5		(61.4)		132.0		(163.3)
Ending Balance	$	5,434.8	$	5,102.5	$	1,354.7	$	1,267.2	$	6,789.5	$	6,369.7

Components of identifiable intangible assets

The components of identifiable intangible assets were as follows:


	Range of Useful Lives (in Years)			December 31, 2025						December 31, 2024
				Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Definite-lived intangible assets:
Customer relationships	10	-	36	$	4,525.3	$	(1,816.3)	$	2,709.0	$	4,114.7	$	(1,540.7)	$	2,574.0
Patents, licenses, and technology	3	-	15	548.7		(337.5)		211.2		541.0		(298.3)		242.7
Non-compete agreements	3	-	5	213.5		(108.0)		105.5		180.2		(83.9)		96.3
Other	1	-	15	40.0		(28.9)		11.1		39.9		(21.5)		18.4
Total definite-lived intangible assets				$	5,327.5	$	(2,290.7)	$	3,036.8	$	4,875.8	$	(1,944.4)	$	2,931.4
Indefinite-lived intangible assets:
Canadian and other licenses				559.2		N/A		559.2		557.5		N/A		557.5
Total intangible assets				$	5,886.7	$	(2,290.7)	$	3,596.0	$	5,433.3	$	(1,944.4)	$	3,488.9

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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+ Details

STOCK COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2025

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Disclosure of Share Based Compensation Arrangements by Share Based Payment Awards

Changes in options outstanding were as follows:


	Number of Options	Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2024	0.6	$	180.29
Granted	0.1	$	245.14


Outstanding at December 31, 2025	0.7	$	187.16	4.9	$	43.7

Exercisable at December 31, 2025	0.5	$	174.47	3.9	$	41.1

Disclosure of the Impact of Stock Options Exercised


	Year Ended December 31,
	2025		2024		2023
Cash received by the Company	$	2.5	$	6.5	$	2.9
Tax benefits realized	$	0.6	$	1.6	$	0.7
Aggregate intrinsic value	$	1.4	$	1.6	$	0.7

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions



	Year Ended December 31,
	2025			2024			2023
Fair value per option	$	83.22		$	73.08		$	72.27

Weighted-average expected life (in years)	6.0			6.0			6.0
Risk free interest rate	4.4		%	4.1		%	3.4		%
Expected volatility	29.7		%	30.0		%	29.8		%
Expected dividend yield	1.2		%	1.3		%	1.4		%


	Year Ended December 31,
	2025			2024			2023
Fair value of the employee’s purchase right	$	49.33		$	47.56		$	49.19
Valuation assumptions:
Risk free interest rate	4.3		%	5.0		%	5.0		%
Expected volatility	22.8		%	27.9		%	30.0		%
Expected dividend yield	1.2		%	1.3		%	1.4		%

Schedule of Nonvested Share Activity

The following table shows a summary of non-vested shares for the year ended December 31, 2025:


	Number of Shares	Weighted-Average Grant Date Fair Value
Beginning balance	0.9	$	226.44
Granted	0.5	$	251.06
Vested	(0.4)	$	226.54
Canceled	(0.1)	$	235.13
Ending balance	0.9	$	237.94

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

DISCONTINUED OPERATIONS (Details) $ in Millions	12 Months Ended
DISCONTINUED OPERATIONS (Details) $ in Millions	Dec. 31, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 1,506.6
Cost of revenues	1,244.5
Gross profit	262.1
Selling, general, and administrative expenses	184.1
Amortization of intangibles and other assets	31.9
Restructuring and other charges	3.0
Operating income	43.1
Interest expense	(0.5)
Investment expense	(1.2)
Other, net	4.2
Earnings before income taxes	45.6
Provision for income taxes	6.8
Net earnings attributable to Labcorp Holdings Inc.	$ 38.8

REVENUES

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

REVENUES

Description of Revenues

Dx attributes revenues to a geographical region based upon where the diagnostic test is performed, while BLS attributes revenues to a geographical region based upon where the services are performed. The Company’s revenue by segment payer groups is as follows:


	Year Ended December 31, 2025				Year Ended December 31, 2024												Year Ended December 31, 2023
	North America		Europe		Other		Total		North America		Europe		Other		Total			North America		Europe		Other		Total

Dx:
Clients	23	%	—	%	—	%	23	%	24	%	—	%	—	%	24	%		24	%	—	%	—	%	24	%
Patients	10	%	—	%	—	%	10	%	10	%	—	%	—	%	10	%		9	%	—	%	—	%	9	%
Medicare and Medicaid	8	%	—	%	—	%	8	%	8	%	—	%	—	%	8	%		8	%	—	%	—	%	8	%
Third party	37	%	—	%	—	%	37	%	36	%	—	%	—	%	36	%		36	%	—	%	—	%	36	%
Total Dx revenues	78	%	—	%	—	%	78	%	78	%	—	%	—	%	78	%		77	%	—	%	—	%	77	%

BLS:
Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs	9	%	9	%	4	%	22	%	9	%	9	%	4	%	22	%		10	%	9	%	4	%	23	%

Total Revenues	87	%	9	%	4	%	100	%	87	%	9	%	4	%	100	%		87	%	9	%	4	%	100	%

Revenues in the U.S. were $11,650.1 (83.5%), $10,858.3 (83.5%), and $10,177.7 (83.7%) for the years ended December 31, 2025, 2024, and 2023.

The following is a description of the current revenue recognition policies of the Company:

Dx Revenues

Dx offers a comprehensive menu of frequently requested and specialty diagnostic tests through an integrated network of primary and specialty laboratories across the U.S. In addition to diagnostic testing along with occupational and wellness testing for employers and forensic deoxyribonucleic acid analysis, Dx also offered a range of other testing services.

Within the Dx segment, a majority of the revenue transactions are initiated when Dx receives a requisition form to perform a diagnostic test. The information provided on the requisition form is used to determine the party that will be billed for the testing performed and the expected reimbursement. Dx recognizes revenue and satisfies its performance obligation for services rendered when the testing process is complete and the associated results are reported. The Dx segment also enters into agreements that have monthly and non-testing-based fees which are recognized each month as the services are provided.

Revenues are distributed among four payer portfolios: clients, patients, Medicare and Medicaid, and third party. Dx considers negotiated discounts and anticipated adjustments, including historical collection experience for the payer portfolio, when revenues are recorded. Dx has a formal process to estimate implicit price concessions for uncollectable accounts. The majority of Dx’s collection risk is related to accounts receivable from both insured and uninsured patients who are unwilling or unable to pay. Anticipated write-offs are recorded as adjustments to revenue at an amount considered necessary to record the segment’s revenue at its net realizable value. In addition to contractual discounts, other adjustments, including anticipated payer denials and other external factors that could affect the collectability of its receivables, are considered when determining revenue and the net receivable amount. Any remaining adjustments to revenue are recorded at the time of final collection and settlement. These adjustments are not material to Dx’s results of operations in any period presented.

The following are descriptions of the Dx payer portfolios:

Clients

Client payers represent the portion of Dx’s revenue related to physicians, hospitals, health systems, ACOs, employers, and other entities where payment is received exclusively from the entity ordering the testing service. Generally, client sales are recorded on a fee-for-service basis at Dx’s client list price, less any negotiated discount. A portion of client billing is for laboratory management services, collection kits and other non-testing offerings. In these cases, revenue is recognized when services are rendered or delivered.

Patients

This portfolio includes revenue from uninsured patients and member cost-share for insured patients (e.g., coinsurance, deductibles, and non-covered services). Uninsured patients are billed based upon Dx’s patient list fee schedules, net of any discounts negotiated with physicians on behalf of their patients. Dx bills insured patients as directed by their health plan and after consideration of the fees and terms associated with an established health plan contract.

Medicare and Medicaid

This portfolio relates to fee-for-service revenue from traditional Medicare and Medicaid programs. Net revenue from these programs is based on the fee schedule established by the related government authority. In addition to contractual discounts, other adjustments including anticipated payer denials are considered when determining net revenue. Any remaining adjustments to revenue are recorded at the time of final collection and settlement. These adjustments are not material to Dx’s results of operations in any period presented.

Third Party

Third party includes revenue related to MCOs. The majority of Dx’s third-party revenue is reimbursed on a fee-for-service basis. These payers are billed at Dx’s established list price and revenue is recorded net of contractual discounts. The majority of Dx’s MCO revenues are recorded based upon contractually negotiated fee schedules with sales for non-contracted MCOs recorded based on historical reimbursement experience.

In addition to contractual discounts, other adjustments including anticipated payer denials are considered when determining revenue. Any remaining adjustments to revenue are recorded at the time of final collection and settlement. These adjustments are not material to Dx’s results of operations in any period presented.

Third-party reimbursement is also received through capitation agreements with MCOs and IPAs. Under capitated agreements, revenue is recognized based on a negotiated per-member, per-month payment for an agreed upon menu of tests or based upon the proportionate share earned by Dx from a capitation pool. When the agreed upon reimbursement is based solely on an established rate per member, revenue is not impacted by the volume of testing performed. Under a capitation pool arrangement, the aggregate value of an established rate per member is distributed based on the volume and complexity of the procedures performed by laboratories participating in the agreement. Dx recognizes revenue monthly, based upon the established capitation rate or anticipated distribution from a capitated pool.

BLS Revenues

BLS revenue is generally recognized over time, as the services are delivered to the customer, based on the extent of progress towards completion of the performance obligation. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the services to be provided. The majority of the BLS’s contracts contain a single performance obligation, as BLS provides a significant service of integrating all promises in the contract and the promises are highly interdependent and interrelated with one another. For contracts that include multiple performance obligations, BLS allocates the contract value to the goods and services based on a customer price list, if available. If a price list is not available, BLS will estimate the transaction price using either market prices or an “expected cost plus margin” approach. The total contract value is estimated at the beginning of the contract and is equal to the amount expected to be billed to the customer. These contracts generally take the form of fixed-price or fee-for-service arrangements subject to pricing adjustments based on changes in scope.

Fixed-price contracts are typically recognized as revenue over time based on a proportional-performance basis, using either input or output methods that are specific to the service provided. In an output method, revenue is determined by dividing the actual units of output achieved by the total units of output required under the contract and multiplying that percentage by the total contract value. When using an input method, revenue is recognized by dividing the actual costs incurred by the total estimated cost expected to complete the contract and multiplying that percentage by the total contract value. Contract costs principally include direct labor costs, research model costs, and allocated overhead costs. The estimate of total costs expected to complete the contract requires significant judgment, and these estimates are reviewed periodically. Any adjustments to the estimates are recognized on a cumulative catch-up basis in the period they become known.

Fee-for-service contracts are typically priced based on transaction volume or time and materials. For volume-based contracts, the contract value is entirely variable, and revenue is recognized as the specific service is completed. For services billed based on time and materials, revenue is recognized using the right to invoice practical expedient.

Contracts are often modified to account for changes in contract specifications and requirements. Generally, when contract modifications create new performance obligations, the modification is considered to be a separate contract and revenue is recognized prospectively. When contract modifications change existing performance obligations, the impact on the existing transaction price and measure of progress for the performance obligation to which it relates is generally recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis.

Most contracts are terminable with or without cause by the customer, either immediately or upon notice. These contracts often require payment to BLS of expenses, fees earned to date, and, in some cases, a termination fee or a payment to BLS of some portion of the fees or profits that could have been earned by BLS under the contract if it had not been terminated early. Termination fees are included in revenues when services have been performed and realization is assured.

BLS incurs sales commissions in the process of obtaining contracts with customers, which are recoverable through the service fees in the contract. Sales commissions that are payable upon contract award are recognized as assets and amortized over the expected contract term, along with related payroll tax expense. The amortization of commission expense is based on the weighted-average contract duration for all commissionable awards in the respective business in which the commission expense is paid, which approximates the period over which goods and services are transferred to the customer. The amortization period of sales commissions ranges from approximately 1 to 5 years, depending on the business. For businesses that enter into primarily short-term contracts, BLS applies the practical expedient, which allows costs to obtain a contract to be expensed when incurred if the amortization period of the assets that would otherwise have been recognized is one year or less. Amortization of assets from sales commissions is included in Selling, general, and administrative expenses in the Consolidated Statements of Operations.

Accounts Receivable, Unbilled Services, and Unearned Revenue

Differences in the timing of revenue recognition and associated billing and cash collections result in recording accounts receivable, unbilled services, and unearned revenue in the Consolidated Balance Sheets. Payments received in advance of services being provided are contract liabilities recognized as unearned revenue. Revenue recognized in advance of billing are recognized as unbilled services and the majority of BLS’s unbilled services represent unbilled receivables. Once a customer is invoiced, the contract asset is reduced for the amount billed, and a corresponding accounts receivable is recognized. All contract assets are billable to customers within one year from the respective balance sheet date.

The following table provides information about accounts receivable, unbilled services, and unearned revenue from contracts with customers:


	December 31,
	2025		2024
Dx accounts receivable	$	1,349.0	$	1,259.3
BLS accounts receivable	791.2		729.5
Less: BLS allowance for credit losses	(36.4)		(44.7)
Accounts receivable, net	$	2,103.8	$	1,944.1

Gross unbilled services	$	164.0	$	160.5
Less: reserve for unbilled services	(7.1)		(7.6)
Unbilled services, net	$	156.9	$	152.9

Revenues recognized during the period that were included in the unearned revenue balance at the beginning of the period, for the years ended December 31, 2025, 2024, and 2023 were $129.5, $113.0, and $78.9, respectively.

Allowance for Credit Losses

BLS estimates future expected credit losses on Accounts receivable, net and Unbilled services, net over the remaining collection period of the instrument. The rollforward for the allowance for credit losses was as follows:


	Accounts Receivable, net		Unbilled Services, net		Total
Allowance for credit losses at December 31, 2023	$	32.7	$	7.5	$	40.2
Credit loss expense	14.6		0.1		14.7
Write-offs	(2.2)		—		(2.2)
Foreign currency impact	(0.4)		—		(0.4)
Allowance for credit losses at December 31, 2024	44.7		7.6		52.3
Credit loss expense	4.3		—		4.3
Write-offs	(14.3)		(0.8)		(15.1)
Foreign currency impact	1.7		0.3		2.0
Allowance for credit losses at December 31, 2025	$	36.4	$	7.1	$	43.5

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

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+ Details

REVENUES (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The Company’s revenue by segment payer groups is as follows:


	Year Ended December 31, 2025				Year Ended December 31, 2024												Year Ended December 31, 2023
	North America		Europe		Other		Total		North America		Europe		Other		Total			North America		Europe		Other		Total

Dx:
Clients	23	%	—	%	—	%	23	%	24	%	—	%	—	%	24	%		24	%	—	%	—	%	24	%
Patients	10	%	—	%	—	%	10	%	10	%	—	%	—	%	10	%		9	%	—	%	—	%	9	%
Medicare and Medicaid	8	%	—	%	—	%	8	%	8	%	—	%	—	%	8	%		8	%	—	%	—	%	8	%
Third party	37	%	—	%	—	%	37	%	36	%	—	%	—	%	36	%		36	%	—	%	—	%	36	%
Total Dx revenues	78	%	—	%	—	%	78	%	78	%	—	%	—	%	78	%		77	%	—	%	—	%	77	%

BLS:
Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs	9	%	9	%	4	%	22	%	9	%	9	%	4	%	22	%		10	%	9	%	4	%	23	%

Total Revenues	87	%	9	%	4	%	100	%	87	%	9	%	4	%	100	%		87	%	9	%	4	%	100	%

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The following table provides information about accounts receivable, unbilled services, and unearned revenue from contracts with customers:


	December 31,
	2025		2024
Dx accounts receivable	$	1,349.0	$	1,259.3
BLS accounts receivable	791.2		729.5
Less: BLS allowance for credit losses	(36.4)		(44.7)
Accounts receivable, net	$	2,103.8	$	1,944.1

Gross unbilled services	$	164.0	$	160.5
Less: reserve for unbilled services	(7.1)		(7.6)
Unbilled services, net	$	156.9	$	152.9

Accounts Receivable, Allowance for Credit Loss


	Accounts Receivable, net		Unbilled Services, net		Total
Allowance for credit losses at December 31, 2023	$	32.7	$	7.5	$	40.2
Credit loss expense	14.6		0.1		14.7
Write-offs	(2.2)		—		(2.2)
Foreign currency impact	(0.4)		—		(0.4)
Allowance for credit losses at December 31, 2024	44.7		7.6		52.3
Credit loss expense	4.3		—		4.3
Write-offs	(14.3)		(0.8)		(15.1)
Foreign currency impact	1.7		0.3		2.0
Allowance for credit losses at December 31, 2025	$	36.4	$	7.1	$	43.5

OTHER LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2025

Other Liabilities Disclosure [Abstract]

Other liabilities


	December 31,
	2025		2024
Deferred compensation plan obligation	$	150.5	$	132.5
Defined-benefit plan obligation	60.4		59.5
Worker’s compensation and auto	50.8		46.5
Cross currency swaps liability	274.0		142.7
Other	112.1		136.2
Total Other liabilities	$	647.8	$	517.4

DISCONTINUED OPERATIONS (Tables)

12 Months Ended

Dec. 31, 2025

Discontinued Operations and Disposal Groups [Abstract]

Discontinued operations

The following table summarizes the significant line items included in Earnings from discontinued operations, net of tax in the Consolidated Statements of Operations:


	Year Ended December 31, 2023
Revenues	$	1,506.6
Cost of revenues	1,244.5
Gross profit	262.1
Selling, general, and administrative expenses	184.1
Amortization of intangibles and other assets	31.9

Restructuring and other charges	3.0
Operating income	43.1
Other (expense) income:
Interest expense	(0.5)

Investment expense	(1.2)
Other, net	4.2
Earnings before income taxes	45.6
Provision for income taxes	6.8


Net earnings attributable to Labcorp Holdings Inc.	$	38.8

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

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+ Details

COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	Jan. 23, 2025	May 12, 2023	Sep. 22, 2022	Dec. 31, 2025
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value			$ 817,000,000.0
Unrecorded Unconditional Purchase Obligation, Including Lease Not yet Commenced, Total				$ 129,200,000
Unrecorded Unconditional Purchase Obligation, Including Lease Not yet Commenced, to be Paid, Year One				34,700,000
Unrecorded Unconditional Purchase Obligation, Including Lease Not yet Commenced, to be Paid, Year Two				20,500,000
Unrecorded Unconditional Purchase Obligation, Including Lease Not yet Commenced, to be Paid, Year Three				$ 74,000,000.0
Initial Damages
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value			$ 272,000,000.0
Enhanced Damages
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value		$ 100,000,000.0
Supplemental Damages
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	$ 2,600,000
Royalty Damages
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	$ 100

BUSINESS ACQUISITIONS & DISPOSITIONS (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) Rate	Dec. 31, 2025 EUR (€)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent	$ 0.2
Business Combination, Recognized Asset Acquired, Receivable, Current	0.6			$ 0.6
Business Combination, Recognized Asset Acquired, Inventory, Current	0.9		$ 15.9	1.3
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	7.1		123.3	13.0
Goodwill, Acquired During Period, net of measurement period adjustments	298.2		299.9	267.5
Goodwill, Acquired During Period	287.8		390.5	296.9
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	299.8		484.6	360.3
Business Combination, Recognized Asset Acquired, Asset	606.8		932.1	663.1
Business Combination, Recognized Liability Assumed, Other Liability, Current	37.2		3.9	3.2
Business Combination, Recognized Liability Assumed, Lease Obligation	3.0		67.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent	9.4			4.1
Business Combination, Recognized Liability Assumed, Liability	49.6		63.1	8.4
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill	557.2		869.0	671.5
Other Payments to Acquire Businesses	25.0
Payments to Acquire Businesses, Gross	582.2		839.0
Finite-lived Intangible Assets Acquired	315.9		440.3	340.8
Payments to Acquire Businesses, Net of Cash Acquired	582.0		839.0	671.5
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			8.4	1.5
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			30.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				1.2
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				2.3
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				20.1
Proceeds from Equity Method Investment, Distribution, Return of Capital	$ 6.0
Proceeds from Sales of Business, Affiliate and Productive Assets			13.5
Gain (Loss) on Disposition of Business			6.4
SYNLAB
Business Combination [Line Items]
Subsidiary, Ownership Percentage, Noncontrolling Owner \| Rate	15.00%
Bioreference Health (2025)
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent	$ 0.0
Business Combination, Recognized Asset Acquired, Receivable, Current	0.0
Business Combination, Recognized Asset Acquired, Inventory, Current	0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	0.0
Goodwill, Acquired During Period	105.8
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	119.2
Business Combination, Recognized Asset Acquired, Asset	225.0
Business Combination, Recognized Liability Assumed, Other Liability, Current	32.5
Business Combination, Recognized Liability Assumed, Lease Obligation	0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent	0.0
Business Combination, Recognized Liability Assumed, Liability	32.5
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill	192.5
Payments to Acquire Businesses, Gross	192.5
CommunityHealthSystemsInc.
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent	0.0
Business Combination, Recognized Asset Acquired, Receivable, Current	0.0
Business Combination, Recognized Asset Acquired, Inventory, Current	0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	0.0
Goodwill, Acquired During Period	91.4
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	103.1
Business Combination, Recognized Asset Acquired, Asset	194.5
Business Combination, Recognized Liability Assumed, Other Liability, Current	0.0
Business Combination, Recognized Liability Assumed, Lease Obligation	0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent	0.0
Business Combination, Recognized Liability Assumed, Liability	0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill	194.5
Payments to Acquire Businesses, Gross	194.5
Other acquirees [Member]
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent	0.2
Business Combination, Recognized Asset Acquired, Receivable, Current	0.6			2.0
Business Combination, Recognized Asset Acquired, Inventory, Current	0.9		0.0	0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	7.9		1.3	6.5
Goodwill, Acquired During Period	90.6		41.0	18.5
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	100.8		46.2	26.9
Business Combination, Recognized Asset Acquired, Asset	201.0		88.5	72.1
Business Combination, Recognized Liability Assumed, Other Liability, Current	25.3		0.0	1.2
Business Combination, Recognized Liability Assumed, Lease Obligation	3.0		0.6
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent	2.5			4.1
Business Combination, Recognized Liability Assumed, Liability	30.8		0.6	1.7
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill	170.2		87.9	73.8
Payments to Acquire Businesses, Gross	170.2		87.9
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0	0.3
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			0.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				1.2
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				17.9
Measurement Period Adjustments
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent	0.0
Business Combination, Recognized Asset Acquired, Receivable, Current	0.0			0.2
Business Combination, Recognized Asset Acquired, Inventory, Current	0.0		2.0	0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	(0.8)		28.1	(1.5)
Goodwill, Acquired During Period	10.4		(90.6)	(29.4)
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	(23.3)		44.3	19.5
Business Combination, Recognized Asset Acquired, Asset	(13.7)		(7.8)	(10.6)
Business Combination, Recognized Liability Assumed, Other Liability, Current	(20.6)		3.9	(8.3)
Business Combination, Recognized Liability Assumed, Lease Obligation	0.0		0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent	6.9			0.0
Business Combination, Recognized Liability Assumed, Liability	(13.7)		(7.2)	(10.6)
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill	0.0		(0.6)	0.0
Payments to Acquire Businesses, Gross	0.0		(0.6)
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			8.4	0.6
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			(3.3)
Escrow Deposit			0.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				(2.3)
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				0.0
SYNLAB \| United States of America, Dollars
Business Combination [Line Items]
Payments to Acquire Equity Method Investments	151.6
SYNLAB \| Euro Member Countries, Euro
Business Combination [Line Items]
Payments to Acquire Equity Method Investments \| €		€ 140.4
Empire City Laboratories, Inc
Business Combination [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	250.0
Payment Due at Closing	165.0
Business Combination, Contingent Consideration, Liability	85.0
Parkview Health Systems, Inc.
Business Combination [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	165.0
2025 acquisitions [Member]
Business Combination [Line Items]
Business Combination, Pro Forma Information, Pro Forma Revenue	14,100.6		13,213.1
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax	$ 903.5		782.5
Baystate Medical Center
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Inventory, Current			0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment			7.2
Goodwill, Acquired During Period			70.7
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill			79.8
Business Combination, Recognized Asset Acquired, Asset			157.7
Business Combination, Recognized Liability Assumed, Other Liability, Current			0.0
Business Combination, Recognized Liability Assumed, Lease Obligation			7.2
Business Combination, Recognized Liability Assumed, Liability			7.2
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill			150.5
Payments to Acquire Businesses, Gross			120.5
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			30.0
2024 acquisitions
Business Combination [Line Items]
Business Combination, Pro Forma Information, Pro Forma Revenue			13,353.6	12,716.4
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax			761.8	423.3
Providence Medical Foundation
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Inventory, Current			0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment			0.9
Goodwill, Acquired During Period			25.9
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill			29.2
Business Combination, Recognized Asset Acquired, Asset			56.0
Business Combination, Recognized Liability Assumed, Other Liability, Current			0.0
Business Combination, Recognized Liability Assumed, Lease Obligation			0.9
Business Combination, Recognized Liability Assumed, Liability			0.9
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill			55.1
Payments to Acquire Businesses, Gross			55.1
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			0.0
Westpac Labs, Inc.
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Inventory, Current			1.8
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment			0.0
Goodwill, Acquired During Period			45.1
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill			50.8
Business Combination, Recognized Asset Acquired, Asset			97.7
Business Combination, Recognized Liability Assumed, Other Liability, Current			0.0
Business Combination, Recognized Liability Assumed, Lease Obligation			0.0
Business Combination, Recognized Liability Assumed, Liability			0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill			97.7
Payments to Acquire Businesses, Gross			97.7
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			0.0
Invitae Corporation
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Inventory, Current			12.1
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment			76.7
Goodwill, Acquired During Period			100.4
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill			113.2
Business Combination, Recognized Asset Acquired, Asset			302.4
Business Combination, Recognized Liability Assumed, Other Liability, Current			0.0
Business Combination, Recognized Liability Assumed, Lease Obligation			58.3
Business Combination, Recognized Liability Assumed, Liability			61.6
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill			240.8
Payments to Acquire Businesses, Gross			240.8
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			3.3
Escrow Deposit			0.0
BioReference Health (2024)
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Inventory, Current			0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment			9.1
Goodwill, Acquired During Period			107.4
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill			121.1
Business Combination, Recognized Asset Acquired, Asset			237.6
Business Combination, Recognized Liability Assumed, Other Liability, Current			0.0
Business Combination, Recognized Liability Assumed, Lease Obligation			0.0
Business Combination, Recognized Liability Assumed, Liability			0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill			237.6
Payments to Acquire Businesses, Gross			237.6
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current			0.0
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current			0.0
Escrow Deposit			$ 0.0
2023 acquisitions
Business Combination [Line Items]
Business Combination, Pro Forma Information, Pro Forma Revenue				12,350.1	$ 12,126.3
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax				397.2	$ 1,030.3
Jefferson Health
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Receivable, Current				0.0
Business Combination, Recognized Asset Acquired, Inventory, Current				0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				0.0
Goodwill, Acquired During Period				50.8
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill				57.2
Business Combination, Recognized Asset Acquired, Asset				110.2
Business Combination, Recognized Liability Assumed, Other Liability, Current				0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent				0.0
Business Combination, Recognized Liability Assumed, Liability				0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill				110.2
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current				0.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				2.2
Enzo BioChem
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Receivable, Current				2.8
Business Combination, Recognized Asset Acquired, Inventory, Current				0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				0.0
Goodwill, Acquired During Period				54.1
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill				61.1
Business Combination, Recognized Asset Acquired, Asset				112.8
Business Combination, Recognized Liability Assumed, Other Liability, Current				0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent				0.0
Business Combination, Recognized Liability Assumed, Liability				0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill				112.8
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current				0.4
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				0.0
Providence Health
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Receivable, Current				0.0
Business Combination, Recognized Asset Acquired, Inventory, Current				1.3
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				4.7
Goodwill, Acquired During Period				50.7
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill				57.2
Business Combination, Recognized Asset Acquired, Asset				113.9
Business Combination, Recognized Liability Assumed, Other Liability, Current				3.9
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent				0.0
Business Combination, Recognized Liability Assumed, Liability				3.9
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill				110.0
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current				0.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				0.0
Tufts Medicine
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Receivable, Current				0.0
Business Combination, Recognized Asset Acquired, Inventory, Current				0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				0.0
Goodwill, Acquired During Period				73.8
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill				83.2
Business Combination, Recognized Asset Acquired, Asset				157.0
Business Combination, Recognized Liability Assumed, Other Liability, Current				0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent				0.0
Business Combination, Recognized Liability Assumed, Liability				0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill				157.0
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current				0.0
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				0.0
Legacy Health
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Receivable, Current				0.0
Business Combination, Recognized Asset Acquired, Inventory, Current				0.0
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				3.3
Goodwill, Acquired During Period				49.0
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill				55.2
Business Combination, Recognized Asset Acquired, Asset				107.7
Business Combination, Recognized Liability Assumed, Other Liability, Current				0.0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent				0.0
Business Combination, Recognized Liability Assumed, Liability				0.0
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill				107.7
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current				0.2
Business Combination, Recognized Liability Assumed, Accounts Payable, Current				0.0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability				0.0
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent				$ 0.0
Customer Relationships [Member]
Business Combination [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years	15 years
Non-compete agreements [Member]
Business Combination [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years 10 months 24 days	4 years 10 months 24 days
Customer Relationships [Member]
Business Combination [Line Items]
Finite-lived Intangible Assets Acquired	$ 262.3
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			14 years 4 months 24 days	15 years
Technology-Based Intangible Assets
Business Combination [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			11 years
Non-compete agreements [Member]
Business Combination [Line Items]
Finite-lived Intangible Assets Acquired	$ 53.6
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			5 years	5 years
Trademarks and Trade Names [Member]
Business Combination [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			2 years

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
BALANCE at Dec. 31, 2022	$ 10,096.6	$ 8.1	$ 0.0	$ 10,581.7	$ (493.2)
Net earnings attributable to Labcorp Holdings Inc.	418.0	0.0	0.0	418.0	0.0
Other Comprehensive Income (Loss), Net of Tax	195.9	0.0	0.0	0.0	195.9
Fortrea Holdings Inc. spin-off	(1,732.0)	0.0	0.0	(1,970.0)	238.0
Dividends declared	(256.1)	0.0	0.0	(256.1)	0.0
Issuance of common stock under employee stock plans	55.2	0.0	55.2	0.0	0.0
Net share settlement tax payments from issuance of stock to employees	(40.9)	0.0	(40.9)	0.0	0.0
Stock compensation	147.3	0.0	147.3	0.0	0.0
Purchase of common stock	(1,009.0)	(0.4)	(123.2)	(885.4)	0.0
BALANCE at Dec. 31, 2023	7,875.0	7.7	38.4	7,888.2	(59.3)
Net earnings attributable to Labcorp Holdings Inc.	746.0	0.0	0.0	746.0	0.0
Other Comprehensive Income (Loss), Net of Tax	(202.3)	0.0	0.0	0.0	(202.3)
Dividends declared	(242.9)	0.0	0.0	(242.9)	0.0
Issuance of common stock under employee stock plans	56.2	0.0	56.2	0.0	0.0
Net share settlement tax payments from issuance of stock to employees	(46.4)	0.0	(46.4)	0.0	0.0
Stock compensation	116.7	0.0	116.7	0.0	0.0
Purchase of common stock	(250.1)	(0.1)	(162.1)	(87.9)	0.0
BALANCE at Dec. 31, 2024	8,052.2	7.6	2.8	8,303.4	(261.6)
Net earnings attributable to Labcorp Holdings Inc.	876.5	0.0	0.0	876.5	0.0
Other Comprehensive Income (Loss), Net of Tax	234.0	0.0	0.0	0.0	234.0
Dividends declared	(241.1)	0.0	0.0	(241.1)	0.0
Issuance of common stock under employee stock plans	54.3	0.1	54.2	0.0	0.0
Net share settlement tax payments from issuance of stock to employees	(31.9)	0.0	(31.9)	0.0	0.0
Stock compensation	125.8	0.0	125.8	0.0	0.0
Purchase of common stock	(450.0)	(0.2)	(150.9)	(298.9)	0.0
BALANCE at Dec. 31, 2025	$ 8,619.8	$ 7.5	$ 0.0	$ 8,639.9	$ (27.6)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Incident Response and Resilience The Company has implemented an IR Plan, which is integrated with the Company’s enterprise crisis management, business continuity, and disaster recovery programs. The IR Plan provides a framework for responding to and managing cybersecurity incidents and is designed to support timely escalation, coordinated decision-making, and effective recovery. The IR Plan outlines incident response requirements, reporting processes, protocols for incident evaluation, and procedures for notifying and escalating information to the Company’s senior management, and the Board and/or appropriate Board committees, as applicable. The IR Plan is reviewed, tested, and updated under the leadership of the Company’s CITO and CIRO. Employee Training The Company’s cybersecurity team provides enterprise-wide cybersecurity training for employees to maintain and continuously improve the Company’s mitigation against human-driven risk. Cybersecurity training is conducted annually, with supplemental and role-based training required for personnel with elevated system access or responsibilities. The Company also conducts periodic simulations and awareness activities designed to reinforce expected behaviors and reduce the likelihood of cybersecurity incidents.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Risk Management and Strategy Protecting the information maintained by the Company about its patients, customers, colleagues, and partners against external and internal threats is a priority for the Company. Accordingly, the Company maintains an enterprise-wide cybersecurity risk management program and invests in cybersecurity policies, control standards, and control procedures, including risk assessment activities, security and event monitoring capabilities, an IR plan, and other detection, prevention, and protection capabilities designed to monitor and mitigate external and insider threats. Through its OIS within the Information Technology organization, the Company engages in a risk-based monitoring and assessment process that analyzes potential business impact of cybersecurity threats to its systems and data, and assesses the effectiveness of the controls in place. The Company has implemented a formal cybersecurity governance program aligned to elements of the NIST Cybersecurity Framework and the SCF. The governance program integrates controls from various regulations, standards, and best practices and supports a structured approach to identifying, protecting against, detecting, responding to, and recovering from cybersecurity threats. The Company’s program includes the evaluation of the cybersecurity posture of third-party suppliers and vendors that have access to the Company’s data or information technology systems. Consistent with business requirements, components of the Company’s information technology enlivenment and control activities are assessed by independent third parties against various frameworks and standards. The Company uses the results of these assessments to inform risk prioritization and remediation planning. With the assistance of these frameworks and standards, the Company assesses risks from cybersecurity threats, monitors its information systems for potential vulnerabilities, assesses those systems pursuant to the Company’s cybersecurity policies, control standards, and control procedures, and implements appropriate mitigation measures. Incident Response and Resilience The Company has implemented an IR Plan, which is integrated with the Company’s enterprise crisis management, business continuity, and disaster recovery programs. The IR Plan provides a framework for responding to and managing cybersecurity incidents and is designed to support timely escalation, coordinated decision-making, and effective recovery. The IR Plan outlines incident response requirements, reporting processes, protocols for incident evaluation, and procedures for notifying and escalating information to the Company’s senior management, and the Board and/or appropriate Board committees, as applicable. The IR Plan is reviewed, tested, and updated under the leadership of the Company’s CITO and CIRO. Employee Training The Company’s cybersecurity team provides enterprise-wide cybersecurity training for employees to maintain and continuously improve the Company’s mitigation against human-driven risk. Cybersecurity training is conducted annually, with supplemental and role-based training required for personnel with elevated system access or responsibilities. The Company also conducts periodic simulations and awareness activities designed to reinforce expected behaviors and reduce the likelihood of cybersecurity incidents.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Governance The Company’s Board has oversight responsibility for the Company’s enterprise risk management process and it delegates oversight responsibility for certain significant functional areas of risk management to the board’s committees. The Audit Committee of the Board is responsible for oversight and review of the Company’s cybersecurity and other information technology risks, controls, and procedures, including the potential impact of such risks on the Company’s business, financial results, operations, and reputation, as well as the Company’s plans to mitigate cybersecurity risks and to respond to cybersecurity incidents. The CIRO and CITO routinely present cybersecurity reports to the Audit Committee at its regularly scheduled meetings. These reports may address cyber risks and threats, the status of projects to strengthen the Company’s information security systems, assessments of the Company’s security program, prior incidents, and the emerging cyber threat landscape. In addition, the full Board receives briefings from the CIRO and CITO on at least an annual basis. Management is responsible for day-to-day assessment and oversight of cybersecurity risks. At the senior management level, the CITO is responsible for overseeing the Company’s information technology systems, technology capabilities, and cybersecurity practices. The CITO has more than 15 years of experience working in information technology-related roles and is a member of the Company’s executive leadership team and reports to the Chief Executive Officer. Prior to joining the Company, the CITO held various leadership positions with global companies. The CIRO, under the direction of the CITO, is responsible for overseeing the OIS. In this role, the CIRO oversees the cyber risk management function, which identifies cybersecurity threats, assesses cybersecurity risks, and supports the CITO and the Company in managing such risks. The CIRO has over 30 years of experience in information security, and prior to joining the Company held various chief information security officer roles, including seven years at a global healthcare company. The CIRO has also served on the board of directors of Health-ISAC, an organization of critical infrastructure owners and operators within the health and public health sectors.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Company’s Board has oversight responsibility for the Company’s enterprise risk management process and it delegates oversight responsibility for certain significant functional areas of risk management to the board’s committees. The Audit Committee of the Board is responsible for oversight and review of the Company’s cybersecurity and other information technology risks, controls, and procedures, including the potential impact of such risks on the Company’s business, financial results, operations, and reputation, as well as the Company’s plans to mitigate cybersecurity risks and to respond to cybersecurity incidents.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The CIRO and CITO routinely present cybersecurity reports to the Audit Committee at its regularly scheduled meetings. These reports may address cyber risks and threats, the status of projects to strengthen the Company’s information security systems, assessments of the Company’s security program, prior incidents, and the emerging cyber threat landscape. In addition, the full Board receives briefings from the CIRO and CITO on at least an annual basis.
Cybersecurity Risk Role of Management [Text Block]	Governance The Company’s Board has oversight responsibility for the Company’s enterprise risk management process and it delegates oversight responsibility for certain significant functional areas of risk management to the board’s committees. The Audit Committee of the Board is responsible for oversight and review of the Company’s cybersecurity and other information technology risks, controls, and procedures, including the potential impact of such risks on the Company’s business, financial results, operations, and reputation, as well as the Company’s plans to mitigate cybersecurity risks and to respond to cybersecurity incidents. The CIRO and CITO routinely present cybersecurity reports to the Audit Committee at its regularly scheduled meetings. These reports may address cyber risks and threats, the status of projects to strengthen the Company’s information security systems, assessments of the Company’s security program, prior incidents, and the emerging cyber threat landscape. In addition, the full Board receives briefings from the CIRO and CITO on at least an annual basis. Management is responsible for day-to-day assessment and oversight of cybersecurity risks. At the senior management level, the CITO is responsible for overseeing the Company’s information technology systems, technology capabilities, and cybersecurity practices. The CITO has more than 15 years of experience working in information technology-related roles and is a member of the Company’s executive leadership team and reports to the Chief Executive Officer. Prior to joining the Company, the CITO held various leadership positions with global companies. The CIRO, under the direction of the CITO, is responsible for overseeing the OIS. In this role, the CIRO oversees the cyber risk management function, which identifies cybersecurity threats, assesses cybersecurity risks, and supports the CITO and the Company in managing such risks. The CIRO has over 30 years of experience in information security, and prior to joining the Company held various chief information security officer roles, including seven years at a global healthcare company. The CIRO has also served on the board of directors of Health-ISAC, an organization of critical infrastructure owners and operators within the health and public health sectors.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Through its OIS within the Information Technology organization, the Company engages in a risk-based monitoring and assessment process that analyzes potential business impact of cybersecurity threats to its systems and data, and assesses the effectiveness of the controls in place.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Management is responsible for day-to-day assessment and oversight of cybersecurity risks. At the senior management level, the CITO is responsible for overseeing the Company’s information technology systems, technology capabilities, and cybersecurity practices. The CITO has more than 15 years of experience working in information technology-related roles and is a member of the Company’s executive leadership team and reports to the Chief Executive Officer. Prior to joining the Company, the CITO held various leadership positions with global companies. The CIRO, under the direction of the CITO, is responsible for overseeing the OIS. In this role, the CIRO oversees the cyber risk management function, which identifies cybersecurity threats, assesses cybersecurity risks, and supports the CITO and the Company in managing such risks. The CIRO has over 30 years of experience in information security, and prior to joining the Company held various chief information security officer roles, including seven years at a global healthcare company. The CIRO has also served on the board of directors of Health-ISAC, an organization of critical infrastructure owners and operators within the health and public health sectors.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The Company has implemented an IR Plan, which is integrated with the Company’s enterprise crisis management, business continuity, and disaster recovery programs. The IR Plan provides a framework for responding to and managing cybersecurity incidents and is designed to support timely escalation, coordinated decision-making, and effective recovery. The IR Plan outlines incident response requirements, reporting processes, protocols for incident evaluation, and procedures for notifying and escalating information to the Company’s senior management, and the Board and/or appropriate Board committees, as applicable. The IR Plan is reviewed, tested, and updated under the leadership of the Company’s CITO and CIRO.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

BUSINESS ACQUISITIONS & DISPOSITIONS Business Acquisitions (Tables)

12 Months Ended

Dec. 31, 2025

Dec. 31, 2024

Dec. 31, 2023

Business Combination [Abstract]

Business Combination, Recognized Asset Acquired and Liability Assumed

The purchase price allocations for these acquisitions were preliminary at December 31, 2025. The valuation of acquired assets and assumed liabilities included the following:


	BioReference Health (2025)		Community Health Systems Inc.		Other Acquisitions Closed During the Year Ended December 31, 2025		Measurement Period Adjustments		Amounts Acquired During Year Ended December 31, 2025
Cash and cash equivalents	$	—	$	—	$	0.2	$	—	$	0.2
Accounts receivable	—		—		0.6		—		0.6

Inventories	—		—		0.9		—		0.9

Property, plant, and equipment	—		—		7.9		(0.8)		7.1

Goodwill	105.8		91.4		90.6		10.4		298.2
Intangible assets	119.2		103.1		100.8		(23.3)		299.8

Total assets acquired	225.0		194.5		201.0		(13.7)		606.8

Accrued expenses and other	32.5		—		25.3		(20.6)		37.2


Lease liabilities	—		—		3.0		—		3.0
Other liabilities	—		—		2.5		6.9		9.4
Total liabilities acquired	32.5		—		30.8		(13.7)		49.6
Net assets acquired	192.5		194.5		170.2		—		557.2
Escrow payments for pending acquisitions									25.0

Cash paid for acquisitions	$	192.5	$	194.5	$	170.2	$	—	$	582.2

The purchase price allocations for these acquisitions were preliminary at December 31, 2024. The valuation of acquired assets and assumed liabilities include the following:


	Baystate Medical Center		Providence Medical Foundation		Westpac Labs, Inc.		Invitae Corp.		BioReference Health (2024)		Other Acquisitions Closed During the Year Ended December 31, 2024		Measurement Period Adjustments		Amounts Acquired During the Year Ended December 31, 2024



Inventories	$	—	$	—	$	1.8	$	12.1	$	—	$	—	$	2.0	$	15.9
Prepaid expenses and other	—		—		—		—		—		—		8.4		8.4
Property, plant, and equipment	7.2		0.9		—		76.7		9.1		1.3		28.1		123.3
Goodwill	70.7		25.9		45.1		100.4		107.4		41.0		(90.6)		299.9
Intangible assets	79.8		29.2		50.8		113.2		121.1		46.2		44.3		484.6
Total assets acquired	157.7		56.0		97.7		302.4		237.6		88.5		(7.8)		932.1
Accrued expenses and other	—		—		—		—		—		—		(3.9)		(3.9)
Unearned revenue	—		—		—		3.3		—		—		(3.3)		—
Lease liabilities	7.2		0.9		—		58.3		—		0.6		—		67.0
Total liabilities acquired	7.2		0.9		—		61.6		—		0.6		(7.2)		63.1
Net assets acquired	150.5		55.1		97.7		240.8		237.6		87.9		(0.6)		869.0
Less 2023 escrow payment	30.0		—		—		—		—		—		—		30.0
Cash paid for acquisitions	$	120.5	$	55.1	$	97.7	$	240.8	$	237.6	$	87.9	$	(0.6)	$	839.0

The purchase price allocations for these acquisitions were preliminary at December 31, 2023. The preliminary valuation of acquired assets and assumed liabilities, include the following:


	Jefferson Health		Enzo BioChem		Providence Health and Services - Oregon		Tufts Medicine		Legacy		Other Acquisitions Closed During the Year Ended December 31, 2023		Measurement Period Adjustments		Amounts Acquired During the Year Ended December 31, 2023
Accounts receivable	$	—	$	(2.8)	$	—	$	—	$	—	$	2.0	$	0.2	$	(0.6)

Inventories	—		—		1.3		—		—		—		—		1.3
Prepaid expenses and other	—		0.4		—		—		0.2		0.3		0.6		1.5
Property, plant, and equipment	—		—		4.7		—		3.3		6.5		(1.5)		13.0

Goodwill	50.8		54.1		50.7		73.8		49.0		18.5		(29.4)		267.5
Intangible assets	57.2		61.1		57.2		83.2		55.2		26.9		19.5		360.3
Other assets	2.2		—		—		—		—		17.9		—		20.1
Total assets acquired	110.2		112.8		113.9		157.0		107.7		72.1		(10.6)		663.1
Accounts payable	—		—		—		—		—		1.2		—		1.2
Accrued expenses and other	—		—		3.9		—		—		1.2		(8.3)		(3.2)

Deferred income taxes	—		—		—		—		—		—		(2.3)		(2.3)

Other liabilities	—		—		—		—		—		(4.1)		—		(4.1)
Total liabilities acquired	—		—		3.9		—		—		(1.7)		(10.6)		(8.4)
Net assets acquired	$	110.2	$	112.8	$	110.0	$	157.0	$	107.7	$	73.8	$	—	$	671.5

Business Combination [Line Items]

Business Combination, Pro Forma Information [Table Text Block]

Had the aggregate of the Company’s 2025 acquisitions, that were accounted for as business combinations, been completed at January 1, 2024, the Company’s pro forma results would have been as follows:


	Year Ended December 31,
	2025		2024
Revenues	$	14,100.6	$	13,213.1
Net earnings attributable to LHI	$	903.5	$	782.5

Had the aggregate of the Company’s 2024 acquisitions, that were accounted for as business combinations, been completed at January 1, 2023, the Company’s pro forma results would have been as follows:


	Year Ended December 31,
	2024		2023
Revenues	$	13,353.6	$	12,716.4
Net earnings attributable to LHI	$	761.8	$	423.3

Had the aggregate of the Company’s 2023 acquisitions, that were accounted for as business combinations, been completed at January 1, 2022, the Company’s pro forma results would have been as follows:


	Year Ended December 31,
	2023		2022
Revenues	$	12,350.1	$	12,126.3
Earnings from continuing operations	$	397.2	$	1,030.3

Acquired amortizable intangible assets and their respective weighted average amortization periods

Intangible assets recognized from business acquisitions that closed during the year ended December 31, 2025, including the related measurement period adjustments, and their respective weighted-average amortization periods are as follows:


	Amount		Weighted-average Amortization Period (in Years)
Customer relationships	$	262.3	15.0
Non-compete agreements	53.6		4.9


Total	$	315.9

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

PENSION AND POSTRETIREMENT PLANS, OTHER DISCLOSURES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 323.9	$ 303.7
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	0.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	0.2
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	1.0
Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	323.9	303.7	$ 335.9
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	24.3	6.4
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	18.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	19.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	19.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	20.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	20.0
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	103.0
Funded status — (deficit) surplus	10.3	5.7
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(16.3)	(13.7)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	17.8	16.0	16.7
Defined Benefit Plan, Plan Assets, Payment for Settlement	$ 0.0	0.0
Non-US \| Equity Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	9.80%
Non-US \| Debt Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	64.40%
Non-US \| Variable Annuity [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	14.90%
Non-US \| Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.90%
Non-US \| Other Investments
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	10.00%
Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 151.0	199.0	195.3
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0.0	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	20.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	16.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	17.9
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	18.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	18.7
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	68.0
Funded status — (deficit) surplus	(23.2)	(14.4)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(7.2)	(20.2)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	11.0	11.0	11.6
Defined Benefit Plan, Plan Assets, Payment for Settlement	$ (56.1)	0.0	$ (10.9)
Domestic Plan [Member] \| Equity Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	19.40%
Domestic Plan [Member] \| Debt Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	76.80%
Domestic Plan [Member] \| Variable Annuity [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.00%
Domestic Plan [Member] \| Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Domestic Plan [Member] \| Other Investments
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Accrued Liabilities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	$ 0.8	0.7
Accrued Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	2.7	2.6
Other Liabilities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	28.5	27.5
Other Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	30.3	30.7
Other Assets \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	39.6	33.9
Other Assets \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Funded status — (deficit) surplus	9.8	18.9
Fair Value, Inputs, Level 1 [Member] \| Domestic Plan [Member] \| Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Fair Value Measured at Net Asset Value Per Share \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	148.2	194.1
Fair Value Measured at Net Asset Value Per Share \| Domestic Plan [Member] \| Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 2.8	$ 3.8

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenues	$ 13,951.7	$ 13,008.9	$ 12,161.6
Cost of revenues	9,939.2	9,384.5	8,796.7
Gross profit	4,012.5	3,624.4	3,364.9
Selling, general, and administrative expenses	2,216.3	2,230.0	2,021.4
Amortization of intangibles and other assets	280.0	256.4	219.8
Asset Impairment Charges	4.3	5.3	349.0
Restructuring and other charges	127.2	46.0	49.1
Operating income	1,384.7	1,086.7	725.6
Interest expense	(224.1)	(208.3)	(199.6)
Investment income	15.2	22.3	28.8
Equity method loss, net	(13.3)	(1.4)	(1.4)
Other, net	(55.0)	60.2	15.5
Earnings from continuing operations before income taxes	1,107.5	959.5	568.9
Provision for income taxes	229.8	212.4	188.5
Earnings from continuing operations	877.7	747.1	380.4
Earnings from discontinued operations, net of tax	0.0	0.0	38.8
Net earnings	877.7	747.1	419.2
Less: Net earnings attributable to the noncontrolling interest	(1.2)	(1.1)	(1.2)
Net earnings attributable to Labcorp Holdings Inc.	$ 876.5	$ 746.0	$ 418.0
Basic earnings per share from continuing operations	$ 10.54	$ 8.89	$ 4.35
Basic earnings per share from discontinued operations	0	0	0.45
Basic earnings per share	10.54	8.89	4.80
Diluted earnings per share from continuing operations	10.46	8.84	4.33
Diluted earnings per share from discontinued operations	0	0	0.44
Diluted earnings per share	$ 10.46	$ 8.84	$ 4.77

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	12 Months Ended
FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncontrolling interest puts	$ 16.9	$ 14.3
Foreign Currency Contract, Asset, Fair Value Disclosure	274.0	142.7
Fair Value Hedges, Net	52.7	76.8
Cash Surrender Value, Fair Value Disclosure	99.6	102.1
Deferred Compensation Plan Assets	53.1	35.7
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	150.5	132.5
Contingent Consideration Classified as Equity, Fair Value Disclosure	50.0	10.8
Contingent consideration adjustment	4.6	(55.3)
Fair market value of senior notes	4,963.6	5,762.6
Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease)	43.8
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncontrolling interest puts	0.0	0.0
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net	0.0	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Deferred Compensation Plan Assets	0.0	0.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncontrolling interest puts	16.9	14.3
Foreign Currency Contract, Asset, Fair Value Disclosure	274.0	142.7
Interest Rate Fair Value Hedge Asset at Fair Value	52.7	76.8
Cash Surrender Value, Fair Value Disclosure	99.6	102.1
Deferred Compensation Plan Assets	53.1	35.7
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncontrolling interest puts	0.0	0.0
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net	0.0	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Deferred Compensation Plan Assets	0.0	0.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	50.0	10.8
Business Combination, Contingent Consideration, Liability	$ 50.0	$ 10.8	$ 66.1

ACCRUED EXPENSES AND OTHER

12 Months Ended

Dec. 31, 2025

Payables and Accruals [Abstract]

ACCRUED EXPENSES AND OTHER


	December 31,
	2025		2024
Employee compensation and benefits	$	423.9	$	495.4

Accrued taxes payable	160.3		152.7






Other	263.6		223.1
Total Accrued expenses and other	$	847.8	$	871.2

ACCRUED EXPENSES AND OTHER (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Accrued expenses and other [Abstract]
Employee compensation and benefits	$ 423.9	$ 495.4
Accrued taxes payable	160.3	152.7
Other	263.6	223.1
Total Accrued expenses and other	$ 847.8	$ 871.2

FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Population of Financial Assets and Liabilities Subject to Fair Value Measurements

The Company’s population of financial assets and liabilities subject to fair value measurements were as follows:


				Fair Value Measurements
				December 31, 2025
	Consolidated Balance Sheets Classification	Fair Value at December 31, 2025		Using Fair Value Hierarchy
				Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	16.9	$	—	$	16.9	$	—
Cross currency swaps	Other liabilities	$	274.0	$	—	$	274.0	$	—
Interest rate swaps	Other liabilities	$	52.7	$	—	$	52.7	$	—
Cash surrender value of life insurance policies	Other assets, net	$	99.6	$	—	$	99.6	$	—
Deferred compensation asset	Other assets, net	$	53.1	$	—	$	53.1	$	—
Deferred compensation liability	Other liabilities	$	150.5	$	—	$	150.5	$	—

Contingent consideration	Accrued expenses and other/Other liabilities	$	50.0	$	—	$	—	$	50.0


				Fair Value Measurements
				December 31, 2024
	Consolidated Balance Sheets Classification	Fair Value at December 31, 2024		Using Fair Value Hierarchy
				Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	14.3	$	—	$	14.3	$	—
Cross currency swaps	Other liabilities	$	142.7	$	—	$	142.7	$	—
Interest rate swaps	Other liabilities	$	76.8	$	—	$	76.8	$	—
Cash surrender value of life insurance policies	Other assets, net	$	102.1	$	—	$	102.1	$	—
Deferred compensation asset	Other assets, net	$	35.7	$	—	$	35.7	$	—
Deferred compensation liability	Other liabilities	$	132.5	$	—	$	132.5	$	—
Contingent consideration	Accrued expenses and other/Other liabilities	$	10.8	$	—	$	—	$	10.8

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]


Fair Value Measurement of Level 3 Liabilities	Contingent Consideration
Balance at December 31, 2023	$	66.1

Cash payments and adjustments	(55.3)
Balance at December 31, 2024	10.8
Cash payments and adjustments	(4.6)
Additions from business acquisitions	43.8
Balance at December 31, 2025	$	50.0

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

PENSION AND POSTRETIREMENT PLANS Pension and Postretirement Plans (Tables)

12 Months Ended

Dec. 31, 2025

Defined Benefit Plan, Plan Amendment [Abstract]

Schedule of Net Benefit Costs

The components of the net periodic benefit costs for the defined benefit pension plans are as follows:


	U. S. Plans						Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2023		2025		2024		2023
Service cost	$	2.6	$	3.7	$	3.9	$	1.5	$	1.5	$	1.4
Interest cost	11.2		11.1		12.3		15.9		14.7		15.2
Expected return on plan assets	(11.0)		(11.0)		(11.6)		(17.8)		(16.0)		(16.7)
Net amortization and deferral	2.2		3.3		4.5		0.2		0.5		0.1
Settlements	11.1		—		10.9		—		—		—
Defined-benefit plan costs (benefits)	$	16.1	$	7.1	$	20.0	$	(0.2)	$	0.7	$	—

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)

The amounts recognized in Accumulated other comprehensive loss in the Company’s Consolidated Balance Sheets are as follows:


	U. S. Plans				Non-U.S. Plans
	December 31,
	2025		2024			2025		2024
Net actuarial loss in accumulated other comprehensive earnings	$	26.0	$	30.7		$	13.7	$	12.8

Schedule of Accumulated and Projected Benefit Obligations

The change in the projected benefit obligation is as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Beginning balance	$	213.4	$	231.9	$	298.0	$	345.7

Service cost	2.6		3.7		1.5		1.5
Interest cost	11.2		11.1		15.9		14.7
Actuarial loss (gain)	13.0		(10.6)		(9.0)		(43.1)
Benefits and administrative expenses paid	(9.9)		(22.7)		(17.1)		(14.4)
Settlements	(56.1)		—		—		—
Foreign currency exchange rate changes	—		—		24.3		(6.4)
Ending balance	$	174.2	$	213.4	$	313.6	$	298.0

Schedule of Changes in Fair Value of Plan Assets

The change in plan assets is as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Beginning balance	$	199.0	$	195.3	$	303.7	$	335.9

Company contributions	—		10.2		5.3		7.6

Actual return on plan assets	15.3		13.7		7.9		(20.9)
Benefits and administrative expenses paid	(7.2)		(20.2)		(16.3)		(13.7)
Foreign currency exchange rate changes	—		—		23.3		(5.2)
Settlements	(56.1)		—		—		—
Ending balance	$	151.0	$	199.0	$	323.9	$	303.7

Schedule of Net Funded Status

The change in the funded status of the plan and a reconciliation of such funded status to the amounts reported in the Company’s Consolidated Balance Sheets is as follows:


	U.S. Plans				Non-U.S. Plans
	December 31,
	2025		2024		2025		2024
Funded status — (deficit) surplus	$	(23.2)	$	(14.4)	$	10.3	$	5.7
Recorded as:
Other assets	$	9.8	$	18.9	$	39.6	$	33.9
Accrued expenses and other	$	2.7	$	2.6	$	0.8	$	0.7
Other liabilities	$	30.3	$	30.7	$	28.5	$	27.5

Defined Benefit Plan, Assumptions

Weighted-average assumptions used to determine net periodic benefit costs are as follows:


	U. S. Plans						Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2023		2025		2024		2023
Discount rate	5.6	%	5.1	%	5.5	%	4.5	%	3.7	%	4.0	%
Salary increases	N/A		N/A		N/A		2.0	%	2.0	%	2.0	%
Expected long term rate of return	6.0	%	6.0	%	6.0	%	5.7	%	4.1	%	5.3	%
Cash balance interest credit rate	4.0	%	4.0	%	4.0	%	N/A		N/A		N/A

Weighted-average assumptions used to determine net periodic benefit obligations are as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Discount rate	5.2	%	5.6	%	5.3	%	5.2	%
Salary increases	N/A		N/A		2.0	%	2.0	%

The allocation of the plan assets by asset category is as follows:


	December 31, 2025
	U.S. Plans		Non-U.S. Plans
Equity securities	19.4	%	9.8	%
Debt securities	76.8	%	64.4	%
Annuities	—	%	14.9	%
Real estate	1.9	%	0.9	%
Other	1.9	%	10.0	%

The target allocation of the plan assets by asset category is as follows:


	December 31, 2025
	U.S. Plans				Non-U.S. Plans
Equity securities	13.0	%	to	25.5%	—	%	to	20.0%
Debt securities	67.0	%	to	87.0%	45.0	%	to	80.0%
Annuities	—	%	to	—%	—	%	to	30.0%
Real estate	0.5	%	to	4.3%	—	%	to	5.0%
Other	—	%	to	5.0%	—	%	to	20.0%

Schedule of Defined Benefit Plans Disclosures

At December 31, 2025, the estimated benefit payments, which were used in the calculation of projected benefit obligations, are expected to be paid as follows:


	December 31, 2025
	U.S. Plans		Non-U.S. Plans
2026	$	20.4	$	18.0
2027	$	16.4	$	19.0
2028	$	17.9	$	19.0
2029	$	18.4	$	20.0
2030	$	18.7	$	20.0
Years 2031 to 2035	$	68.0	$	103.0

The effect on operations of the post-retirement medical plan is shown in the following table:


	Year Ended December 31,
	2025		2024		2023
Interest cost on benefit obligation	$	0.2	$	0.2	$	0.2
Net amortization and deferral	(0.3)		(0.2)		—
Post-retirement medical plan (benefits) costs	$	(0.1)	$	—	$	0.2

A summary of the changes in the accumulated post-retirement benefit obligation follows:


	Year Ended December 31,
	2025		2024
Beginning balance	$	3.2	$	3.6
Interest cost on benefit obligation	0.2		0.2
Actuarial loss (gain)	0.1		(0.2)
Benefits paid	(0.6)		(0.4)

Ending balance	$	2.9	$	3.2

Recorded as:
Accrued expenses and other	$	0.4	$	0.5
Other liabilities	2.5		2.7
	$	2.9	$	3.2

Defined Benefit Plan Fair Value Of Plan Assets By Category

The fair values of the assets by asset category are as follows:


	December 31, 2025
Asset Category	Level of Valuation Input	Fair Value		Investments valued using NAV per share		Total
U.S Plans:
Cash and cash equivalents	Level 1	$	2.8	$	—	$	2.8
U.S. equity index funds		—		20.4		20.4
International equity index funds		—		8.9		8.9
Real estate index fund		—		2.8		2.8
General bond index funds		—		116.1		116.1
Total fair value		$	2.8	$	148.2	$	151.0

Non-U.S. Plans:
Cash and cash equivalents	Level 1	$	32.5	$	—	$	32.5
Annuities	Level 3	48.1		—		48.1
Pooled investment funds		—		243.3		243.3
Total fair value		$	80.6	$	243.3	$	323.9


	December 31, 2024
Asset Category	Level of Valuation Input	Fair Value		Investments valued using NAV per share		Total
U.S Plans:
Cash and cash equivalents	Level 1	$	4.9	$	—	$	4.9
U.S. equity index funds		—		25.9		25.9
International equity index funds		—		10.6		10.6
Real estate index fund		—		3.8		3.8
General bond index funds		—		153.8		153.8
Total fair value		$	4.9	$	194.1	$	199.0

Non-U.S. Plans:
Cash and cash equivalents	Level 1	$	4.1	$	—	$	4.1
Annuities	Level 3	45.8		—		45.8
Pooled investment funds		—		253.8		253.8
Total fair value		$	49.9	$	253.8	$	303.7

The fair market value of index funds and pooled investment funds are valued using the NAV unit price provided by the fund administrator. The NAV is based on the value of the underlying assets owned by the fund. The fair value of annuity investments are based on discounted cash flow techniques using unobservable valuation inputs such as discount rates and actuarial mortality tables.


Fair Value Measurement of Level 3 Pension Assets	Annuities
Balance at December 31, 2023	$	52.8
Actual return on plan assets	(7.0)
Balance at December 31, 2024	45.8
Actual return on plan assets	2.3
Balance at December 31, 2025	$	48.1

Assumed Benefit Payments By Year

The following assumed benefit payments under the Company’s post-retirement benefit plan, which reflect expected future service, as appropriate, and which were used in the calculation of projected benefit obligations, are expected to be paid as follows:


	December 31, 2025
2026	$	0.4
2027	$	0.3
2028	$	0.3
2029	$	0.3
2030	$	0.2
Years 2031 to 2035	$	1.0

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 532.3	$ 1,518.7
Accounts receivable, net	2,103.8	1,944.1
Unbilled services, net	156.9	152.9
Supplies inventory	534.7	493.2
Prepaid Expense and Other Assets, Current	692.8	697.6
Total current assets	4,020.5	4,806.5
Property, plant, and equipment, net	3,081.5	3,045.4
Goodwill, net	6,789.5	6,369.7
Intangible assets, net	3,596.0	3,488.9
Joint venture partnerships and equity method investments	153.9	16.3
Other assets, net	751.3	652.2
Total assets	18,392.7	18,379.0
Current liabilities:
Accounts payable	840.8	875.8
Accrued expenses and other	847.8	871.2
Unearned revenue	439.1	392.2
Short-term operating lease liabilities	191.1	184.6
Short-term finance lease liabilities	4.6	6.1
Short-term borrowings and current portion of long-term debt	500.1	1,000.3
Total current liabilities	2,823.5	3,330.2
Long-term debt	5,084.6	5,331.2
Operating lease liabilities	682.6	676.3
Financing lease liabilities	63.0	74.3
Deferred Income Taxes and Other Tax Liabilities, Noncurrent	454.5	383.1
Other liabilities	647.8	517.4
Total liabilities	9,756.0	10,312.5
Commitments and contingent liabilities
Noncontrolling interest	16.9	14.3
Equity, Attributable to Parent [Abstract]
Common stock, 82.2 and 83.4 shares outstanding at December 31, 2025, and 2024, respectively	7.5	7.6
Additional paid-in capital	0.0	2.8
Retained earnings	8,639.9	8,303.4
Accumulated other comprehensive loss	(27.6)	(261.6)
Total shareholders’ equity	8,619.8	8,052.2
Total liabilities and shareholders’ equity	$ 18,392.7	$ 18,379.0

OTHER LIABILITIES

12 Months Ended

Dec. 31, 2025

Other Liabilities Disclosure [Abstract]

OTHER LIABILITIES


	December 31,
	2025		2024
Deferred compensation plan obligation	$	150.5	$	132.5
Defined-benefit plan obligation	60.4		59.5
Worker’s compensation and auto	50.8		46.5
Cross currency swaps liability	274.0		142.7
Other	112.1		136.2
Total Other liabilities	$	647.8	$	517.4

SUPPLEMENTAL CASH FLOW INFORMATION

12 Months Ended

Dec. 31, 2025

Supplemental Cash Flow Information [Abstract]

SUPPLEMENTAL CASH FLOW INFORMATION


	Year Ended December 31,
	2025		2024		2023
Cash paid during the period for:
Interest	$	217.7	$	209.2	$	221.5
Income taxes, net of refunds:
U.S. Federal	$	84.2	$	135.7	$	154.6
U.S. State	15.1		43.1		15.8
Switzerland	28.1		21.7		21.1
Germany	24.0		0.9		0.8
Other foreign	19.7		14.0		14.5
Total	$	171.1	$	215.4	$	206.8
Disclosure of non-cash financing and investing activities:


Change in accrued property, plant, and equipment	$	9.2	$	(22.5)	$	13.2

BUSINESS ACQUISITIONS AND DISPOSITIONS

12 Months Ended

Dec. 31, 2025

Business Combination [Abstract]

BUSINESS ACQUISITIONS AND DISPOSITIONS

2025

During the year ended December 31, 2025, the Company acquired various businesses and related assets for approximately $582.0, net of cash acquired. The preliminary purchase considerations for these acquisitions were allocated under the acquisition method of accounting to the estimated fair market value of the net assets acquired. A residual amount of tax deductible goodwill, including measurement period adjustments relating to prior acquisitions, of $298.2 was recorded at December 31, 2025. The purchase price allocations for these acquisitions were preliminary at December 31, 2025. The valuation of acquired assets and assumed liabilities included the following:


	BioReference Health (2025)		Community Health Systems Inc.		Other Acquisitions Closed During the Year Ended December 31, 2025		Measurement Period Adjustments		Amounts Acquired During Year Ended December 31, 2025
Cash and cash equivalents	$	—	$	—	$	0.2	$	—	$	0.2
Accounts receivable	—		—		0.6		—		0.6

Inventories	—		—		0.9		—		0.9

Property, plant, and equipment	—		—		7.9		(0.8)		7.1

Goodwill	105.8		91.4		90.6		10.4		298.2
Intangible assets	119.2		103.1		100.8		(23.3)		299.8

Total assets acquired	225.0		194.5		201.0		(13.7)		606.8

Accrued expenses and other	32.5		—		25.3		(20.6)		37.2


Lease liabilities	—		—		3.0		—		3.0
Other liabilities	—		—		2.5		6.9		9.4
Total liabilities acquired	32.5		—		30.8		(13.7)		49.6
Net assets acquired	192.5		194.5		170.2		—		557.2
Escrow payments for pending acquisitions									25.0

Cash paid for acquisitions	$	192.5	$	194.5	$	170.2	$	—	$	582.2


	Amount		Weighted-average Amortization Period (in Years)
Customer relationships	$	262.3	15.0
Non-compete agreements	53.6		4.9


Total	$	315.9

On September 17, 2024, the Company announced that it entered into an agreement with Cinven, Inc. to acquire a 15% minority interest in SYNLAB, a leader in medical diagnostic services and specialty testing in Europe, for approximately $151.6 (€140.4). The transaction closed in March 2025 and is accounted for as an equity method investment within the Company’s Consolidated Financial Statements.

On September 15, 2025, the Company entered into an agreement with Empire City Laboratories, Inc. to acquire select clinical laboratory assets, which serves the New York Tri-State area. The transaction closed during the first quarter of 2026. The purchase price for the transaction is up to $250.0, including $165.0 paid at closing and up to $85.0 of additional consideration contingent on performance.

On November 13, 2025, the Company announced that it entered into an agreement with Parkview Health System, Inc. to acquire select assets of the health system’s outreach laboratory services for a purchase price of approximately $165.0. The transaction is anticipated to close in 2026, subject to customary closing conditions and applicable regulatory approvals for a transaction of this type.

Unaudited Pro Forma Information for 2025 Acquisitions


	Year Ended December 31,
	2025		2024
Revenues	$	14,100.6	$	13,213.1
Net earnings attributable to LHI	$	903.5	$	782.5

Dispositions

During the year ended December 31, 2025, the Company exited an equity method investment for cash proceeds of $6.0 included within Proceeds from sale or distribution of equity affiliates or other investments in the Company’s Consolidated Statement of Cash Flows.

2024

During the year ended December 31, 2024, the Company acquired several businesses and related assets for cash of approximately $839.0. The preliminary purchase considerations for these acquisitions were allocated under the acquisition method of accounting to the estimated fair market value of the net assets acquired, including approximately $440.3 in identifiable intangible assets. A residual amount of tax deductible goodwill of approximately $299.9 was recorded as of December 31, 2024. The weighted-average amortization period for customer relationships, technology, non-compete agreements, and trade names assets acquired from these businesses are 14.4, 11.0, 5.0, and 2.0 years, respectively. The purchase price allocations for these acquisitions were preliminary at December 31, 2024. The valuation of acquired assets and assumed liabilities include the following:


	Baystate Medical Center		Providence Medical Foundation		Westpac Labs, Inc.		Invitae Corp.		BioReference Health (2024)		Other Acquisitions Closed During the Year Ended December 31, 2024		Measurement Period Adjustments		Amounts Acquired During the Year Ended December 31, 2024



Inventories	$	—	$	—	$	1.8	$	12.1	$	—	$	—	$	2.0	$	15.9
Prepaid expenses and other	—		—		—		—		—		—		8.4		8.4
Property, plant, and equipment	7.2		0.9		—		76.7		9.1		1.3		28.1		123.3
Goodwill	70.7		25.9		45.1		100.4		107.4		41.0		(90.6)		299.9
Intangible assets	79.8		29.2		50.8		113.2		121.1		46.2		44.3		484.6
Total assets acquired	157.7		56.0		97.7		302.4		237.6		88.5		(7.8)		932.1
Accrued expenses and other	—		—		—		—		—		—		(3.9)		(3.9)
Unearned revenue	—		—		—		3.3		—		—		(3.3)		—
Lease liabilities	7.2		0.9		—		58.3		—		0.6		—		67.0
Total liabilities acquired	7.2		0.9		—		61.6		—		0.6		(7.2)		63.1
Net assets acquired	150.5		55.1		97.7		240.8		237.6		87.9		(0.6)		869.0
Less 2023 escrow payment	30.0		—		—		—		—		—		—		30.0
Cash paid for acquisitions	$	120.5	$	55.1	$	97.7	$	240.8	$	237.6	$	87.9	$	(0.6)	$	839.0

Unaudited Pro Forma Information for 2024 Acquisitions


	Year Ended December 31,
	2024		2023
Revenues	$	13,353.6	$	12,716.4
Net earnings attributable to LHI	$	761.8	$	423.3

Dispositions

During the year ended December 31, 2024, the Company sold the assets of Beacon Laboratory Benefit Solutions, Inc. for cash proceeds of $13.5 included within Proceeds from sale of business in the Company’s Consolidated Statement of Cash Flows and recorded a gain of $6.4 included within Other, net in the Consolidated Statement of Operations.

2023

During the year ended December 31, 2023, the Company acquired several businesses and related assets for cash of approximately $671.5. The preliminary purchase considerations for these acquisitions were allocated under the acquisition method of accounting to the estimated fair market value of the net assets acquired, including approximately $340.8 in identifiable intangible assets and a residual amount of tax-deductible goodwill of approximately $296.9. The goodwill reflects the Company’s expectations to utilize the acquired businesses’ workforce and established relationships and the benefits of being able to leverage operational efficiencies with favorable growth opportunities in these markets. The amortization period for non-compete agreements and customer list assets acquired from these businesses are 5 and 15 years, respectively. These acquisitions were made primarily to extend the Company’s geographic reach in important market areas and to partner with hospitals and health systems. The purchase price allocations for these acquisitions were preliminary at December 31, 2023. The preliminary valuation of acquired assets and assumed liabilities, include the following:


	Jefferson Health		Enzo BioChem		Providence Health and Services - Oregon		Tufts Medicine		Legacy		Other Acquisitions Closed During the Year Ended December 31, 2023		Measurement Period Adjustments		Amounts Acquired During the Year Ended December 31, 2023
Accounts receivable	$	—	$	(2.8)	$	—	$	—	$	—	$	2.0	$	0.2	$	(0.6)

Inventories	—		—		1.3		—		—		—		—		1.3
Prepaid expenses and other	—		0.4		—		—		0.2		0.3		0.6		1.5
Property, plant, and equipment	—		—		4.7		—		3.3		6.5		(1.5)		13.0

Goodwill	50.8		54.1		50.7		73.8		49.0		18.5		(29.4)		267.5
Intangible assets	57.2		61.1		57.2		83.2		55.2		26.9		19.5		360.3
Other assets	2.2		—		—		—		—		17.9		—		20.1
Total assets acquired	110.2		112.8		113.9		157.0		107.7		72.1		(10.6)		663.1
Accounts payable	—		—		—		—		—		1.2		—		1.2
Accrued expenses and other	—		—		3.9		—		—		1.2		(8.3)		(3.2)

Deferred income taxes	—		—		—		—		—		—		(2.3)		(2.3)

Other liabilities	—		—		—		—		—		(4.1)		—		(4.1)
Total liabilities acquired	—		—		3.9		—		—		(1.7)		(10.6)		(8.4)
Net assets acquired	$	110.2	$	112.8	$	110.0	$	157.0	$	107.7	$	73.8	$	—	$	671.5

Unaudited Pro Forma Information for 2023 Acquisitions


	Year Ended December 31,
	2023		2022
Revenues	$	12,350.1	$	12,126.3
Earnings from continuing operations	$	397.2	$	1,030.3

- Definition

The entire disclosure for business combination.

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+ Details

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash paid during period for:
Interest	$ 217.7	$ 209.2	$ 221.5
Income Tax Paid, Federal, after Refund Received	84.2	135.7	154.6
Income Tax Paid, State and Local, after Refund Received	15.1	43.1	15.8
Income taxes, net of refunds:	171.1	215.4	206.8
Disclosure of non-cash financing and investing activities
Change in capital expenditures incurred but not paid	9.2	(22.5)	13.2
SWITZERLAND
Supplemental Cash Flow Disclosure [Line Items]
Income Tax Paid, Foreign, after Refund Received	28.1	21.7	21.1
Cash paid during period for:
Income Tax Paid, Foreign, after Refund Received	28.1	21.7	21.1
GERMANY
Supplemental Cash Flow Disclosure [Line Items]
Income Tax Paid, Foreign, after Refund Received	24.0	0.9	0.8
Cash paid during period for:
Income Tax Paid, Foreign, after Refund Received	24.0	0.9	0.8
Foreign Tax Jurisdiction, Other [Member]
Supplemental Cash Flow Disclosure [Line Items]
Income Tax Paid, Foreign, after Refund Received	19.7	14.0	14.5
Cash paid during period for:
Income Tax Paid, Foreign, after Refund Received	$ 19.7	$ 14.0	$ 14.5

INCOME TAXES

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

INCOME TAXES

The sources of Earnings from continuing operations before income taxes, classified between domestic and foreign entities, are as follows:


	Year Ended December 31,
	2025		2024		2023
Domestic	$	728.9	$	629.7	$	504.0
Foreign	378.6		329.8		64.9
Total Earnings from continuing operations before income taxes	$	1,107.5	$	959.5	$	568.9

The components of income tax expense attributable to continuing operations are as follows:


	Year Ended December 31,
	2025		2024		2023
Current tax expense:
Federal	$	64.6	$	125.9	$	183.1
State	12.5		46.2		38.9
Foreign	55.1		60.4		44.6
	$	132.2	$	232.5	$	266.6
Deferred tax expense (benefit):
Federal	$	83.1	$	(6.3)	$	(63.1)
State	15.9		(11.1)		(31.6)
Foreign	(1.4)		(2.7)		16.6
	97.6		(20.1)		(78.1)
Total Provision for income taxes	$	229.8	$	212.4	$	188.5

The effective tax rates on earnings before income taxes are reconciled to statutory U.S. income tax rates as follows:


	Year Ended December 31,
	2025				2024				2023
	Amount		%		Amount		%		Amount		%
Statutory U.S. rate	$	232.6	21.0	%	$	201.5	21.0	%	$	119.5	21.0	%
State and local income taxes, net of federal income tax effects (1)	24.3		2.2	%	23.4		2.4	%	2.7		0.5	%
Foreign tax effects:
Canada:
Deferred tax adjustments	0.4		—	%	0.5		0.1	%	9.9		1.7	%
Other	1.1		0.1	%	(2.5)		(0.3)	%	3.3		0.6	%
Germany:
Deferred tax adjustments	(0.2)		—	%	(0.2)		—	%	(6.8)		(1.2)	%
Other	1.1		0.1	%	1.1		0.1	%	5.8		1.0	%
United Kingdom:
Goodwill impairment	—		—	%	—		—	%	39.1		6.9	%
Deferred tax adjustments	0.3		—	%	—		—	%	12.9		2.3	%
Other	(0.3)		—	%	(0.4)		—	%	5.1		0.8	%
Switzerland:
Foreign rate differential	(16.9)		(1.5)	%	(16.0)		(1.7)	%	(16.1)		(2.8)	%
Other	2.7		0.2	%	3.8		0.4	%	0.6		0.1	%
Other foreign jurisdictions	(0.4)		—	%	(0.3)		—	%	1.0		0.2	%
Enactment of new tax laws	—		—	%	—		—	%	—		—	%
Effect of cross-border tax laws:
Other	3.0		0.3	%	4.5		0.5	%	2.1		0.4	%
Tax credits:
R&D tax credits	(16.2)		(1.5)	%	(18.0)		(1.9)	%	(13.2)		(2.3)	%
Other	(1.1)		(0.1)	%	(0.7)		(0.1)	%	(1.3)		(0.2)	%
Valuation allowances	0.5		—	%	(1.4)		(0.1)	%	—		—	%
Nontaxable or nondeductible items:
Goodwill impairment	—		—	%	—		—	%	18.1		3.2	%
Officer compensation	8.3		0.7	%	6.9		0.7	%	9.9		1.7	%
Worthless stock loss	—		—	%	—		—	%	(14.8)		(2.6)	%
Other	5.3		0.5	%	7.5		0.8	%	5.7		1.0	%
Changes in unrecognized tax benefits	(8.3)		(0.7)	%	1.9		0.2	%	(1.0)		(0.2)	%
Other adjustments:
Deferred tax adjustments	0.1		—	%	3.2		0.3	%	6.4		1.1	%
Other	(6.5)		(0.6)	%	(2.4)		(0.3)	%	(0.4)		(0.1)	%
Effective tax rate	$	229.8	20.7	%	$	212.4	22.1	%	$	188.5	33.1	%

(1) State taxes in California, New Jersey, and New York contributed to the majority of the tax effect in this category

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows:


	December 31,
	2025		2024
Deferred tax assets:
Derivative instruments	$	69.7	$	36.5
Employee compensation and benefits	69.0		70.8
Operating lease liability	198.0		199.3


Credit carryforwards	45.2		0.4
Capitalized R&D costs	98.2		194.7
Tax loss carryforwards	226.4		224.0
Other	118.2		114.3
Total gross deferred tax assets	824.7		840.0
Less: valuation allowance	(128.1)		(127.2)
Deferred tax assets, net of valuation allowance	$	696.6	$	712.8

Deferred tax liabilities:

Right of use asset	$	(182.9)	$	(181.6)
Intangible assets	(663.3)		(626.7)
Property, plant, and equipment	(216.7)		(177.7)

Other	(64.5)		(71.7)
Total gross deferred tax liabilities	$	(1,127.4)	$	(1,057.7)

Net deferred tax liabilities	$	(430.8)	$	(344.9)

The table below provides a rollforward of the valuation allowance:


	Year Ended December 31,
	2025		2024		2023
Beginning balance	$	127.2	$	150.2	$	151.3
Movements charged to expense	0.3		(22.8)		(8.9)
Reductions and other adjustments	0.6		(0.2)		7.8
Ending balance	$	128.1	$	127.2	$	150.2

The Company has U.S. federal tax loss carryforwards of approximately $88.6, which expire periodically through 2037, as well as post-2017 carryforwards of $148.7, which have indefinite carryforwards. The Company has U.S. state tax loss carryforwards of $660.7, a portion of which expire annually. In addition to federal and state net operating losses, the Company has a federal capital loss carryforward of $12.0, which expires in 2030. Credit carryforwards for federal and state income tax purposes are $45.2, the majority of which have indefinite carryforwards. The Company has foreign tax loss carryforwards of $112.4, the majority of which have indefinite carryforwards, as well as foreign tax loss carryforwards of $444.9, which expire periodically through 2041. In addition to the foreign net operating losses, the Company has foreign capital loss carryforwards of $30.5, which have indefinite carryforwards. Deferred tax assets associated with loss and credit carryforwards of $271.6 have been reduced by valuation allowances of $128.1.

The valuation allowance increased from $127.2 in 2024 to $128.1 in 2025 primarily due to the establishment of valuation allowances on certain federal and foreign capital losses which were partially offset by decreases in valuation allowances on certain state and foreign net operating losses.

Unrecognized income tax benefits were $24.5 and $32.2 at December 31, 2025, and 2024, respectively. The Company recognizes interest and penalties related to unrecognized income tax benefits in Provision for income taxes in the Consolidated Statements of Operations. Accrued interest and penalties related to uncertain tax positions totaled $0.0 and $0.2 at December 31, 2025, and 2024, respectively. During the years ended December 31, 2025, 2024, and 2023, the Company recognized $0.0, $0.1 and $0.0, respectively, in interest and penalties expense, which was offset by a benefit from reversing previous accruals for interest and penalties of $0.2, $0.0 and $1.8, respectively.

The following table shows a reconciliation of the unrecognized income tax benefits, excluding interest and penalties, from uncertain tax positions:


	Year Ended December 31,
	2025		2024		2023
Beginning balance	$	32.2	$	29.9	$	37.5
Increase in reserve for tax positions taken in the current year	2.2		2.2		1.8
Increase in reserve for tax positions taken in a prior period	5.5		3.8		10.4
Decrease in reserve for tax positions taken in a prior period	(15.4)		(3.4)		(4.0)
Decrease in reserve as a result of settlements	—		(0.1)		(7.2)

Decrease in reserve as a result of lapses in the statute of limitations	—		(0.2)		(8.6)
Ending balance	$	24.5	$	32.2	$	29.9

At December 31, 2025, 2024, and 2023, there are $24.5, $32.2 and $29.9, respectively, of tax benefits that, if recognized, would favorably impact the effective income tax rate.

The Company has substantially concluded all U.S. federal income tax matters for years through 2018 and is currently under Internal Revenue Service examination for tax years 2019 through 2022. Substantially all material state and local and foreign income tax matters have been concluded through 2017 and 2019, respectively. The Company has various state and foreign income tax examinations ongoing throughout the year. The Company believes adequate provisions have been recorded related to all open tax years.

Pillar Two legislation arising from the Organisation for Economic Co-operation and Development’s base erosion and profit shifting initiative has been enacted or substantively enacted in certain jurisdictions in which the Company operates. The legislation was effective for the Company’s financial year beginning January 1, 2024. The Company is in scope of the enacted or substantively enacted legislation and has performed an assessment of the Company’s potential exposure to Pillar Two income taxes. The assessment of the potential exposure to Pillar Two income taxes is based on the most recent tax filings, country-by-country reporting, and financial statements for the constituent entities in the Company. Based on the assessment, the Pillar Two effective tax rates in most of the jurisdictions in which the Company operates are above 15%. We expect to qualify for the transitional safe harbor relief in all significant jurisdictions and have not provisioned for any incremental income tax expense attributable to Pillar Two.

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-21

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

REVENUES - ACCOUNTS RECEIVABLES, UNBILLED SERVICES, AND UNEARNED REVENUE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Allowance for Credit Loss	$ (36.4)	$ (44.7)	$ (32.7)
Gross unbilled services	164.0	160.5
Less: reserve for unbilled services	(7.1)	(7.6)
Contract with Customer, Asset, after Allowance for Credit Loss, Current	156.9	152.9
Deferred Revenue, Revenue Recognized	129.5	113.0	78.9
Unbilled Services, Allowance for Credit Loss	7.1	7.6	7.5
Allowance for Credit Loss	43.5	52.3	$ 40.2
Accounts Receivable, Credit Loss Expense (Reversal)	4.3	14.6
Unbilled Services, Credit Loss Expense (Reversal)	0.0	0.1
Credit Loss Expense (Reversal)	4.3	14.7
Accounts Receivable, Allowance for Credit Loss, Writeoff	(14.3)	(2.2)
Unbilled Services, Allowance for Credit Loss, Write Off	0.8	0.0
Unbilled Services, Allowance for Credit Loss, Write Off	(0.8)	0.0
Accounts Receivable, Allowance for Credit Loss, Writeoff	15.1	2.2
Accounts Receivable Foreign Currency Translation Impact	1.7	0.4
Unbilled Services, Allowance for Credit Loss, Foreign Currency Translation	0.3	0.0
Allowance For Credit Loss Foreign Currency Translation Impact	2.0	0.4
Accounts receivable, net	2,103.8	1,944.1
Diagnostics [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	1,349.0	1,259.3
Biopharma Laboratory Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	791.2	729.5
Accounts Receivable, Allowance for Credit Loss	$ (36.4)	$ (44.7)

PROPERTY, PLANT AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT, NET

PROPERTY, PLANT, AND EQUIPMENT, NET


				December 31,
	Range of Useful Lives (in Years)			2025		2024
Land				$	87.5	$	112.3
Buildings and building improvements	10	-	55	1,171.6		1,098.4
Machinery and equipment	3	-	10	2,123.8		2,108.2
Software	3	-	10	1,100.8		1,023.1
Furniture and fixtures	5	-	10	104.6		105.9
Leasehold improvements (1)				577.9		550.6
Construction in progress				381.5		333.4
Operating lease ROU assets				803.9		784.5
Total property, plant, and equipment				6,351.6		6,116.4
Less accumulated depreciation				(3,270.1)		(3,071.0)
Total Property, plant, and equipment, net				$	3,081.5	$	3,045.4

(1)Leasehold improvements are amortized over the shorter of their estimated useful lives or the term of the related leases.

Depreciation expense of property, plant, and equipment was $401.1, $387.1, and $361.1 for 2025, 2024, and 2023, respectively.

DEBT - SCHEDULE OF LONG-TERM DEBT (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
1.55% senior notes due 2026	$ 0.0	$ 500.0
3.60% Senior notes due 2027	600.0	600.0
2.95% senior notes due 2029	650.0	650.0
4.35% senior notes due 2030	650.0	650.0
2.70% senior notes due 2031	447.3	423.2
4.55% senior notes due 2032	500.0	500.0
4.80% senior notes due 2034	850.0	850.0
4.70 % Senior notes due 2045	900.0	900.0
Long term debt issuance costs	37.7	42.3
Notes Payable, Noncurrent	0.0	0.3
Long-term debt, less current portion	5,084.6	5,331.2
Long-Term Debt, Maturity, Year One	500.3
Long-Term Debt, Maturity, Year Two	600.0
Long-Term Debt, Maturity, Year Three	0.0
Treasury Stock Acquired, Average Cost Per Share	5,122.3
Long-Term Debt, Maturity, Year Five	650.0
Long-Term Debt, Maturity, after Year Five	2,697.3
Long term debt, future minimum payments, interest included in payments	5,622.6
Long-Term Debt, Maturity, Year Four	1,175.0
Accounts receivable securitizaiton
Debt Instrument [Line Items]
Long-Term Line of Credit, Noncurrent	$ 525.0	$ 300.0
1.55% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.55%
3.60% senior notes due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.60%
2.95% senior notes due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.95%
4.35% senior notes due 2031 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.35%
2.70% senior notes due 2031 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.70%
4.55% senior notes due 2032 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.55%
4.80% senior notes due 2034 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.80%
4.70% senior notes due 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.70%

SUMMARY OF SIGNIFICANT ACCOUNTING - EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income [Abstract]
Net earnings, basic	$ 876.5	$ 746.0	$ 418.0
Net earnings, diluted	$ 876.5	$ 746.0	$ 418.0
Shares [Abstract]
Outstanding shares, basic (in shares)	83.2	83.9	87.1
Dilutive effect of stock options (in shares)	0.6	0.5	0.5
Outstanding shares, diluted (in shares)	83.8	84.4	87.6
Antidilutive Securities Excluded from Computation of Earnings Per Share	0.1	0.2	0.2
Per Share Amount [Abstract]
Basic earnings per share	$ 10.54	$ 8.89	$ 4.80
Diluted earnings per share (in dollars per share)	$ 10.46	$ 8.84	$ 4.77

GOODWILL AND INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLE ASSETS

The balances, net of impairment, and changes in the carrying amount of goodwill were as follows:


	Dx				BLS				Total
	December 31, 2025		December 31, 2024		December 31, 2025		December 31, 2024		December 31, 2025		December 31, 2024
Beginning Balance	$	5,102.5	$	4,813.9	$	1,267.2	$	1,328.6	$	6,369.7	$	6,142.5
Goodwill acquired, excluding measurement period adjustments	287.8		390.5		—		—		287.8		390.5



Foreign currency impact and other adjustments to goodwill	44.5		(101.9)		87.5		(61.4)		132.0		(163.3)
Ending Balance	$	5,434.8	$	5,102.5	$	1,354.7	$	1,267.2	$	6,789.5	$	6,369.7

During 2025, the Company recorded $0.0 and $16.0 of goodwill and intangible assets impairment charges, respectively. These intangible asset impairment charges are associated with the restructuring of ED and are reflected in Restructuring and other charges in the Consolidated Statements of Operations.

During 2024, the Company did not record goodwill or intangible asset impairment charges.

During 2023, the Company recorded goodwill and other asset impairment charges of $349.0 which was primarily comprised of goodwill impairment for the ED reporting unit and the impairment of a technology intangible asset, which are reflected in Goodwill and other asset impairments in the Consolidated Statements of Operations.

The cumulative goodwill impairment for the Company at December 31, 2025, and 2024 was $648.5 and primarily represents the goodwill of the Company’s ED reporting unit within the BLS segment.

The components of identifiable intangible assets were as follows:


	Range of Useful Lives (in Years)			December 31, 2025						December 31, 2024
				Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Definite-lived intangible assets:
Customer relationships	10	-	36	$	4,525.3	$	(1,816.3)	$	2,709.0	$	4,114.7	$	(1,540.7)	$	2,574.0
Patents, licenses, and technology	3	-	15	548.7		(337.5)		211.2		541.0		(298.3)		242.7
Non-compete agreements	3	-	5	213.5		(108.0)		105.5		180.2		(83.9)		96.3
Other	1	-	15	40.0		(28.9)		11.1		39.9		(21.5)		18.4
Total definite-lived intangible assets				$	5,327.5	$	(2,290.7)	$	3,036.8	$	4,875.8	$	(1,944.4)	$	2,931.4
Indefinite-lived intangible assets:
Canadian and other licenses				559.2		N/A		559.2		557.5		N/A		557.5
Total intangible assets				$	5,886.7	$	(2,290.7)	$	3,596.0	$	5,433.3	$	(1,944.4)	$	3,488.9

Amortization of intangible assets was $280.0, $256.4 and $219.8 in 2025, 2024, and 2023, respectively. Amortization expense of intangible assets is estimated to be $290.0 in 2026, $277.2 in 2027, $269.4 in 2028, $256.3 in 2029, $247.0 in 2030, and $1,696.9 thereafter.

DEBT (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Short-term borrowings and current portion of long-term debt

Short-term borrowings and the current portion of long-term debt consisted of the following:


	December 31,
	2025		2024




3.60% senior notes due 2025	$	—	$	1,000.0
1.55% senior notes due 2026	500.0		—

Debt issuance costs	(0.2)		(0.1)
Current portion of note payable	0.3		0.4
Total Short-term borrowings and current portion of long-term debt	$	500.1	$	1,000.3

Schedule of Long-term Debt Instruments

Long-term debt consisted of the following:


	December 31,
	2025		2024










1.55% senior notes due 2026	$	—	$	500.0
3.60% senior notes due 2027	600.0		600.0
2.95% senior notes due 2029	650.0		650.0
4.35% senior notes due 2030	650.0		650.0
2.70% senior notes due 2031	447.3		423.2
4.55% senior notes due 2032	500.0		500.0
4.80% senior notes due 2034	850.0		850.0
4.70% senior notes due 2045	900.0		900.0
Debt issuance costs	(37.7)		(42.3)
AR facility	525.0		300.0
Note payable	—		0.3
Total Long-term debt	$	5,084.6	$	5,331.2

Schedule of Maturities of Long-term Debt

Scheduled payments of long-term debt are as follows:



	December 31, 2025
2026	$	500.3
2027	600.0
2028	—
2029	1,175.0
2030	650.0
Thereafter	2,697.3
Total scheduled payments	5,622.6
Less current portion	(500.3)
Long-term debt, due beyond one year	$	5,122.3

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org/1943274/2147481112/505-10-50-7

+ Details

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions				1 Months Ended	12 Months Ended
	Mar. 12, 2026	Feb. 27, 2026	Jan. 14, 2026	Dec. 31, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jul. 24, 2024	Dec. 31, 2022	Dec. 31, 2021
Stockholders' Equity Note [Abstract]
Common stock, shares authorized (in shares)					265.0
Preferred stock, shares authorized (in shares)					30.0
Preferred stock, par value per share (in dollars per share)					$ 0.10
Rollforward of common shares issued [Abstract]
Common shares issued, beginning balance (in shares)					83.4	83.9	88.2
Common stock issued under employee stock plans (in shares)					0.6	0.6	0.5
Common shares repurchased (in shares)					(1.8)	(1.1)	(4.8)
Common shares issued, ending balance (in shares)				83.9	82.2	83.4	83.9
Share repurchase program [Abstract]
Outstanding common stock repurchase authorization					$ 830.4
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance					(264.7)	$ (47.6)	$ (462.3)
Foreign Currency Translation Adjustments, balance, ending balance				$ (47.6)	(33.0)	(264.7)	(47.6)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax					231.7	(217.1)
Current year adjustments, Foreign Currency Translation Adjustments					231.7	(217.1)	183.1
Tax effect of adjustments, Foreign Currency Translation Adjustments					0.0	0.0	0.0
Net Benefit Plan Adjustments
Net Benefit Plan Adjustments, balance					3.1	(11.7)	(30.9)
Tax effect of adjustments, Net Benefit Plan Adjustments					(0.9)	(5.9)	(1.8)
Net Benefit Plan Adjustments, balance				(11.7)	5.4	3.1	(11.7)
Accumulated Other Comprehensive Earnings
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax					(1.9)	23.3	(4.6)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax					(1.9)	23.3	(4.6)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax					16.2	(2.6)	30.1
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax					0.0	0.0	0.0
Other Comprehensive Income (Loss), before Reclassifications, before Tax					247.9	(219.7)	213.2
Tax effect of adjustments, Accumulated Other Comprehensive Earnings					(0.9)	(5.9)	(1.8)
Accumulated Other Comprehensive Earnings, balance				$ 59.3	$ 27.6	$ 261.6	$ 59.3		$ 493.2
Stock Repurchased During Period, Shares				1.1	1.8	1.1	3.7
Treasury Stock Acquired, Average Cost Per Share					$ 254.17	$ 219.57	$ 206.85
Stock Repurchase Program, Authorized Amount								$ 1,000.0		$ 2,500.0
Payments for Repurchase of Common Stock					$ 450.0	$ 250.1	$ 1,000.0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock Outstanding					0.0	0.0
Accumulated Other Comprehensive Loss				$ (59.3)	(27.6)	(261.6)	(59.3)		$ (493.2)
Fortrea Holdings Inc. spin-off							(1,732.0)
Other Comprehensive Income (Loss), before Reclassifications, before Tax					$ 247.9	$ (219.7)	$ 213.2
Stock Repurchased and Retired During Period, Shares					1.8	1.1	4.8
Dividends declared					$ (241.1)	$ (242.9)	$ (256.1)
Stock Repurchase Program, Authorized Amount								$ 1,000.0		$ 2,500.0
Outstanding common stock repurchase authorization					$ 830.4
Treasury Stock Acquired, Average Cost Per Share					$ 254.17	$ 219.57	$ 206.85
Accelerated Share Repurchases, Settlement (Payment) or Receipt				1,000.0			$ 1,000.0
Sales and Excise Tax Payable				$ 9.0			$ 9.0
Common Stock, Dividends, Per Share, Cash Paid					$ 2.88	$ 2.88	$ 2.88
Common Stock, Shares, Issued				83.9	82.2	83.4	83.9
Subsequent Event \| O2026Q1DividendsMember
Accumulated Other Comprehensive Income (Loss) [Line Items]
Dividends Payable, Amount Per Share			$ 0.72
Dividends Payable, Date of Record		Feb. 27, 2026
Dividends, Common Stock, Cash			$ 61.0
Dividends Payable, Date to be Paid	Mar. 12, 2026
Dividends Payable, Date Declared			Jan. 14, 2026
Pension Plan [Member]
Foreign Currency Translation Adjustments
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax					$ (11.1)		$ (10.9)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax					(11.1)		(10.9)
Foreign Currency Gain (Loss)
Foreign Currency Translation Adjustments
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax					0.0		0.0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Fortrea Holdings Inc. spin-off							231.6
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax					0.0		0.0
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Fortrea Holdings Inc. spin-off							238.0
Dividends declared					$ 0.0	$ 0.0	0.0
Net Benefit Plan Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Fortrea Holdings Inc. spin-off							$ 6.4

DEBT

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

DEBT

Short-term borrowings and the current portion of long-term debt consisted of the following:


	December 31,
	2025		2024




3.60% senior notes due 2025	$	—	$	1,000.0
1.55% senior notes due 2026	500.0		—

Debt issuance costs	(0.2)		(0.1)
Current portion of note payable	0.3		0.4
Total Short-term borrowings and current portion of long-term debt	$	500.1	$	1,000.3

Long-term debt consisted of the following:


	December 31,
	2025		2024










1.55% senior notes due 2026	$	—	$	500.0
3.60% senior notes due 2027	600.0		600.0
2.95% senior notes due 2029	650.0		650.0
4.35% senior notes due 2030	650.0		650.0
2.70% senior notes due 2031	447.3		423.2
4.55% senior notes due 2032	500.0		500.0
4.80% senior notes due 2034	850.0		850.0
4.70% senior notes due 2045	900.0		900.0
Debt issuance costs	(37.7)		(42.3)
AR facility	525.0		300.0
Note payable	—		0.3
Total Long-term debt	$	5,084.6	$	5,331.2

Credit Facilities

The Company maintains a senior revolving credit facility, which was amended and restated on June 27, 2025. It consists of a five-year revolving facility in the principal amount of up to $1,000.0, with the option of increasing the facility by up to an additional $500.0, subject to certain conditions, including obtaining additional commitments from new or existing lenders. The revolving credit facility also provides for a subfacility of up to $100.0 for swing line borrowings and a subfacility of up to $150.0 for issuances of letters of credit. Borrowings under the revolving credit facility bear interest at a floating rate equal to either (i) a SOFR-based rate plus a margin ranging from 0.805% to 1.300% or (ii) a base rate plus a margin ranging from 0.0% to 0.300%, in each case depending on the Company’s long-term debt ratings. The Company is required to pay a facility fee quarterly on the aggregate amount of commitments under the revolving credit facility, at a per annum rate ranging from 0.070% to 0.200%, depending on the Company’s long term debt ratings, regardless of usage. The revolving credit facility is permitted to be used for general corporate purposes, including working capital, capital expenditures, funding of share repurchases and certain other payments, acquisitions, and other investments. There were no balances outstanding on the Company’s current revolving credit facility and $110.2 in outstanding letters of credit on the Company’s subfacility at December 31, 2025. At December 31, 2025, the effective interest rate on the revolving credit facility was 4.73%. The revolving credit facility expires in June 2030.

Under the Company’s revolving credit facility, the Company is subject to negative covenants limiting subsidiary indebtedness and certain other covenants typical for investment grade-rated borrowers and the Company is required to maintain certain leverage ratios. The Company was in compliance with all covenants in its term loans, the revolving credit facility, and AR Facility at December 31, 2025, and expects that it will remain in compliance with its existing debt covenants for the next 12 months.

On August 23, 2024, the Company and a bankruptcy-remote special purpose vehicle (SPV) entered into a $300.0 three-year accounts receivable securitization facility with PNC Bank, National Association (PNC) as administrative agent (AR Facility). The AR Facility provides for purchases of accounts receivable by PNC in an amount of up to $300.0 through August of 2027, and may increase up to $700.0, subject to the satisfaction of certain conditions.

The SPV is a variable interest entity for which the Company is the primary beneficiary. The SPV’s sole business consists of the continuous purchase of receivables from the Company which is used as collateral for the loan. Although the SPV is included in the Company’s Consolidated Financial Statements, it is a separate legal entity with separate creditors.

Upon the transfer of ownership and control of the receivables to the SPV, the Company has no retained interests in the receivables sold and they become unavailable to the Company’s creditors should the relevant seller become insolvent. The Company has collection and administrative responsibilities for the receivables sold to the SPV.

On January 31, 2025, the Company amended its AR Facility (AR Facility Amendment). The AR Facility Amendment increased the amount the Company can borrow from PNC from $300.0 to $700.0 through August of 2027. In addition, pursuant to the terms of the AR Facility Amendment (i) the Toronto-Dominion Bank became a party to the underlying receivables purchase agreement as a committed purchaser through January 2026 and (ii) MUFG Bank Ltd. and certain of its related conduit purchasers became parties to the underlying receivables purchase agreement as purchasers and the loans or investments of such conduit purchasers may accrue interest as specified in the AR Facility Amendment and receivables purchase agreement.

During the year ended December 31, 2025, and 2024, the Company received loan proceeds of $225.0 and $300.0, respectively under the AR Facility, which is included in cash from financing activities in the Consolidated Statements of Cash Flows.

On January 28, 2026, the Company further amended its AR Facility. Among other things, this amendment extended the scheduled termination date to January 26, 2029 and permits the Company at its option to increase the facility limit from $700.0 to $825.0 at any time on or before May 29, 2026.

Senior Notes

On September 23, 2024, LCAH (the Issuer) entered into a base indenture with U.S. Bank Trust Company, National Association, as trustee (the Trustee) (the 2024 Indenture). On September 23, 2024, the Company, the Issuer and the Trustee entered into supplemental indentures to the 2024 Indenture under which the Issuer issued, and the Company guaranteed, $2,000.0 in debt securities, consisting of $650.0 aggregate principal amount of 4.35% senior notes due 2030, $500.0 aggregate principal amount of 4.55% senior notes due 2032, and $850.0 aggregate principal amount of 4.80% senior notes due 2034 with interest payable semi-annually on April 1 and October 1 of each year, commencing April 1, 2025. Net proceeds from the offering were $1,983.0 after deducting underwriting discounts and other estimated expenses of the offering. The net proceeds were used to redeem or repay indebtedness and, to the extent not used for such purpose, for other general corporate purposes. Indebtedness redeemed or repaid at or prior to maturity were the Company’s 2.30% senior notes due December 2024, its 3.60% senior notes due February 2025, and $500.0 of borrowings under its revolving credit facility.

Other Information

Scheduled payments of long-term debt are as follows:



	December 31, 2025
2026	$	500.3
2027	600.0
2028	—
2029	1,175.0
2030	650.0
Thereafter	2,697.3
Total scheduled payments	5,622.6
Less current portion	(500.3)
Long-term debt, due beyond one year	$	5,122.3

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
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-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
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-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/470/tableOfContent

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 1B
-Subparagraph (g)
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 1B
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 1C
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Paragraph 1I
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Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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+ Details

PENSION AND POSTRETIREMENT PLANS

12 Months Ended

Dec. 31, 2025

Postemployment Benefits [Abstract]

PENSION AND POSTRETIREMENT PLANS

Defined Contribution Retirement Plans

The Company has various U.S. defined contribution retirement plans (401K Plans). Under these 401K Plans, employees can contribute a portion of their salary to the plan and the Company makes minimum non-elective contributions, discretionary contributions, and matching contributions, depending on the terms of the specific plan. On January 1, 2021, all of the 401K Plans were modified to provide for 100% match of employee contributions up to 5% of their salary. Total expense relating to the 401K Plans for the years ended December 31, 2025, 2024, and 2023 was $166.1, $153.5, and $167.6, respectively.

Defined Benefit Pension Plans

The Company sponsors both funded and unfunded defined benefit pension plans which provide benefits based on various criteria such as years of service and salary. The Company maintained two plans in the U.S., two plans in the U.K., and one in Germany.

The two plans in the U.S. (U.S. Plans) were closed to new entrants and the accrual of service credits at the end of 2009. The U.K. pension plan was closed to new entrants and the accrual of service credits for one plan as of December 31, 2002, and the accrual of service credits for the other plan as of December 31, 2019. The German plan was closed to new entrants on December 31, 2009, but participants continue to accrue service credits. The U.K. and German plans are aggregated for disclosure as the Non-U.S. Plans.

Net Periodic Benefit Costs

The components of the net periodic benefit costs for the defined benefit pension plans are as follows:


	U. S. Plans						Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2023		2025		2024		2023
Service cost	$	2.6	$	3.7	$	3.9	$	1.5	$	1.5	$	1.4
Interest cost	11.2		11.1		12.3		15.9		14.7		15.2
Expected return on plan assets	(11.0)		(11.0)		(11.6)		(17.8)		(16.0)		(16.7)
Net amortization and deferral	2.2		3.3		4.5		0.2		0.5		0.1
Settlements	11.1		—		10.9		—		—		—
Defined-benefit plan costs (benefits)	$	16.1	$	7.1	$	20.0	$	(0.2)	$	0.7	$	—

Service costs are the only component of net periodic benefit costs recorded within Operating income in the Company’s Consolidated Statements of Operations. For the year ended December 31, 2025, and 2023, the Company recognized a partial plan settlement charge of $11.1 and $10.9, respectively, as a component of Other, net in the Company’s Consolidated Statements of Operations.

The amounts recognized in Accumulated other comprehensive loss in the Company’s Consolidated Balance Sheets are as follows:


	U. S. Plans				Non-U.S. Plans
	December 31,
	2025		2024			2025		2024
Net actuarial loss in accumulated other comprehensive earnings	$	26.0	$	30.7		$	13.7	$	12.8

Change in Projected Benefit Obligation

The change in the projected benefit obligation is as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Beginning balance	$	213.4	$	231.9	$	298.0	$	345.7

Service cost	2.6		3.7		1.5		1.5
Interest cost	11.2		11.1		15.9		14.7
Actuarial loss (gain)	13.0		(10.6)		(9.0)		(43.1)
Benefits and administrative expenses paid	(9.9)		(22.7)		(17.1)		(14.4)
Settlements	(56.1)		—		—		—
Foreign currency exchange rate changes	—		—		24.3		(6.4)
Ending balance	$	174.2	$	213.4	$	313.6	$	298.0

Change in Fair Value of Plan Assets

The change in plan assets is as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Beginning balance	$	199.0	$	195.3	$	303.7	$	335.9

Company contributions	—		10.2		5.3		7.6

Actual return on plan assets	15.3		13.7		7.9		(20.9)
Benefits and administrative expenses paid	(7.2)		(20.2)		(16.3)		(13.7)
Foreign currency exchange rate changes	—		—		23.3		(5.2)
Settlements	(56.1)		—		—		—
Ending balance	$	151.0	$	199.0	$	323.9	$	303.7

Change in Funded Status and Reconciliation of Amounts Recorded in the Consolidated Balance Sheets

The change in the funded status of the plan and a reconciliation of such funded status to the amounts reported in the Company’s Consolidated Balance Sheets is as follows:


	U.S. Plans				Non-U.S. Plans
	December 31,
	2025		2024		2025		2024
Funded status — (deficit) surplus	$	(23.2)	$	(14.4)	$	10.3	$	5.7
Recorded as:
Other assets	$	9.8	$	18.9	$	39.6	$	33.9
Accrued expenses and other	$	2.7	$	2.6	$	0.8	$	0.7
Other liabilities	$	30.3	$	30.7	$	28.5	$	27.5

Assumptions

Weighted-average assumptions used to determine net periodic benefit costs are as follows:


	U. S. Plans						Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2023		2025		2024		2023
Discount rate	5.6	%	5.1	%	5.5	%	4.5	%	3.7	%	4.0	%
Salary increases	N/A		N/A		N/A		2.0	%	2.0	%	2.0	%
Expected long term rate of return	6.0	%	6.0	%	6.0	%	5.7	%	4.1	%	5.3	%
Cash balance interest credit rate	4.0	%	4.0	%	4.0	%	N/A		N/A		N/A

A one percentage point decrease or increase in the discount rate would have resulted in a respective increase or decrease in 2025 retirement plan expense of $0.3 for the U.S. Plans. A one percentage point decrease or increase in the discount rate would have resulted in a respective increase or decrease in 2025 retirement plan expense of $0.6 for the Non-U.S. Plans.

Weighted-average assumptions used to determine net periodic benefit obligations are as follows:


	U.S. Plans				Non-U.S. Plans
	Year Ended December 31,
	2025		2024		2025		2024
Discount rate	5.2	%	5.6	%	5.3	%	5.2	%
Salary increases	N/A		N/A		2.0	%	2.0	%

The discount rate is determined using the weighted-average yields on high-quality fixed income securities that have maturities consistent with the timing of benefit payments. Lower discount rates increase the size of the benefit obligation and generally increase pension expense in the following year; higher discount rates reduce the size of the benefit obligation and generally reduce subsequent-year pension expense.

The expected return on plan assets is the estimated long-term rate of return that will be earned on the investments used to fund the pension obligations. To determine this rate, the Company considers the composition of plan investments, historical returns earned, and expectations about the future. Actual asset over/under performance compared to expected returns will respectively decrease/increase unrecognized loss. The change in the unrecognized loss will change amortization cost in upcoming periods. A one percentage point increase or decrease in the expected return on plan assets would have resulted in a corresponding change in 2025 pension expense of $1.8 for the U.S. Plans. A one percentage point increase or decrease in the expected return on plan assets would have resulted in a corresponding change in 2025 pension expense of $3.1 for the Non-U.S. Plans.

The salary increase assumptions are used to estimate the annual rate at which pay of plan participants will grow. If the rate of growth assumed increases, the size of the pension obligations will increase, as will the amount recorded in Accumulated other comprehensive loss in the Company’s Consolidated Balance Sheets and amortized into earnings in subsequent periods.

The Company evaluates other assumptions periodically, such as retirement age, mortality, and turnover, and updates them as necessary to reflect the Company’s actual experience and expectations for the future. Differences between actual results and assumptions utilized are recorded in Accumulated other comprehensive income each period. These differences are amortized

into earnings over the remaining average future service of active participating employees or the expected life of inactive participants, as applicable.

Plan Assets

The fair values of the assets by asset category are as follows:


	December 31, 2025
Asset Category	Level of Valuation Input	Fair Value		Investments valued using NAV per share		Total
U.S Plans:
Cash and cash equivalents	Level 1	$	2.8	$	—	$	2.8
U.S. equity index funds		—		20.4		20.4
International equity index funds		—		8.9		8.9
Real estate index fund		—		2.8		2.8
General bond index funds		—		116.1		116.1
Total fair value		$	2.8	$	148.2	$	151.0

Non-U.S. Plans:
Cash and cash equivalents	Level 1	$	32.5	$	—	$	32.5
Annuities	Level 3	48.1		—		48.1
Pooled investment funds		—		243.3		243.3
Total fair value		$	80.6	$	243.3	$	323.9


	December 31, 2024
Asset Category	Level of Valuation Input	Fair Value		Investments valued using NAV per share		Total
U.S Plans:
Cash and cash equivalents	Level 1	$	4.9	$	—	$	4.9
U.S. equity index funds		—		25.9		25.9
International equity index funds		—		10.6		10.6
Real estate index fund		—		3.8		3.8
General bond index funds		—		153.8		153.8
Total fair value		$	4.9	$	194.1	$	199.0

Non-U.S. Plans:
Cash and cash equivalents	Level 1	$	4.1	$	—	$	4.1
Annuities	Level 3	45.8		—		45.8
Pooled investment funds		—		253.8		253.8
Total fair value		$	49.9	$	253.8	$	303.7


Fair Value Measurement of Level 3 Pension Assets	Annuities
Balance at December 31, 2023	$	52.8
Actual return on plan assets	(7.0)
Balance at December 31, 2024	45.8
Actual return on plan assets	2.3
Balance at December 31, 2025	$	48.1

Investment Policies

Plan fiduciaries of various plans set investment policies and strategies, based on consultation with professional advisors, and oversee investment allocation, which includes selecting investment managers and setting long-term strategic targets. The

primary strategic investment objectives are balancing investment risk and return and monitoring the plan’s liquidity position in order to meet the near-term benefit payment and other cash needs. Target allocation percentages are established at an asset class level by plan fiduciaries. Target allocation ranges are guidelines, not limitations, and occasionally plan fiduciaries will approve allocations above or below a target range.

The allocation of the plan assets by asset category is as follows:


	December 31, 2025
	U.S. Plans		Non-U.S. Plans
Equity securities	19.4	%	9.8	%
Debt securities	76.8	%	64.4	%
Annuities	—	%	14.9	%
Real estate	1.9	%	0.9	%
Other	1.9	%	10.0	%

The target allocation of the plan assets by asset category is as follows:


	December 31, 2025
	U.S. Plans				Non-U.S. Plans
Equity securities	13.0	%	to	25.5%	—	%	to	20.0%
Debt securities	67.0	%	to	87.0%	45.0	%	to	80.0%
Annuities	—	%	to	—%	—	%	to	30.0%
Real estate	0.5	%	to	4.3%	—	%	to	5.0%
Other	—	%	to	5.0%	—	%	to	20.0%

Pension Funding and Cash Flows

The Company expects to make approximately $8.4 required contributions to its defined benefit pension plans during 2026. The Company targets funding the minimum required contributions but may make additional contributions into the pension plans in 2026, depending upon factors such as how the funded status of those plans change or to reduce the administrative costs of the plan.

At December 31, 2025, the estimated benefit payments, which were used in the calculation of projected benefit obligations, are expected to be paid as follows:


	December 31, 2025
	U.S. Plans		Non-U.S. Plans
2026	$	20.4	$	18.0
2027	$	16.4	$	19.0
2028	$	17.9	$	19.0
2029	$	18.4	$	20.0
2030	$	18.7	$	20.0
Years 2031 to 2035	$	68.0	$	103.0

Post-employment Retiree Health and Welfare Plan

The Company sponsors a post-employment retiree health and welfare plan for the benefit of eligible employees at certain U.S. subsidiaries who retire after satisfying service and age requirements. This plan is funded on a pay-as-you-go basis and the cost of providing these benefits is shared with the retirees.

Post-retirement Medical Plan

The Company assumed obligations under a subsidiary’s post-retirement medical plan. Coverage under this plan is restricted to a limited number of existing employees of the subsidiary. This plan is unfunded and the Company’s policy is to fund benefits as claims are incurred. The effect on operations of the post-retirement medical plan is shown in the following table:


	Year Ended December 31,
	2025		2024		2023
Interest cost on benefit obligation	$	0.2	$	0.2	$	0.2
Net amortization and deferral	(0.3)		(0.2)		—
Post-retirement medical plan (benefits) costs	$	(0.1)	$	—	$	0.2

For the year ended December 31, 2025, and 2024, amounts included in Accumulated other comprehensive loss in the Company’s Consolidated Balance Sheets consist of unamortized net income of $0.5 and $0.8, respectively.

A summary of the changes in the accumulated post-retirement benefit obligation follows:


	Year Ended December 31,
	2025		2024
Beginning balance	$	3.2	$	3.6
Interest cost on benefit obligation	0.2		0.2
Actuarial loss (gain)	0.1		(0.2)
Benefits paid	(0.6)		(0.4)

Ending balance	$	2.9	$	3.2

Recorded as:
Accrued expenses and other	$	0.4	$	0.5
Other liabilities	2.5		2.7
	$	2.9	$	3.2

The weighted-average discount rates used in the calculation of the accumulated post-retirement benefit obligation were 5.4% and 5.6% at December 31, 2025, and 2024, respectively. The healthcare cost trend rate was removed due to the expectation of future funding to be at the same level as the previous year’s funding.


	December 31, 2025
2026	$	0.4
2027	$	0.3
2028	$	0.3
2029	$	0.3
2030	$	0.2
Years 2031 to 2035	$	1.0

Deferred Compensation Plan

The Company has a DCP under which certain of its executives may elect to defer up to 100.0% of their annual cash incentive pay and/or up to 50.0% of their annual base salary and/or eligible commissions subject to annual limits established by the U.S. government. The DCP provides executives a tax efficient strategy for retirement savings and capital accumulation without significant cost to the Company. The Company makes no contributions to the DCP. Amounts deferred by a participant are credited to a bookkeeping account maintained on behalf of each participant, which is used for measurement and determination of amounts to be paid to a participant, or his or her designated beneficiary, pursuant to the terms of the DCP. The amounts accrued under these plans were $150.5 and $132.5 at December 31, 2025, and 2024, respectively. Deferred amounts are the Company’s general unsecured obligations and are subject to claims by the Company’s creditors. The Company’s general assets may be used to fund obligations and pay DCP benefits.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

12 Months Ended

Dec. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Interest Rate Swaps

During the second quarter of 2021, the Company entered into fixed-to-variable interest rate swap agreements for its 2.70% senior notes due 2031 with an aggregate notional amount of $500.0 and variable interest rates currently based on the three-month SOFR, plus 1.7060%. These agreements were designated as hedges against changes in the fair value of a portion of the Company’s long-term debt.

Cross Currency Swaps

During the first quarter of 2024, the Company terminated its 2024 and 2025 USD to Swiss Franc cross currency swaps and entered into two new swaps, each with a notional value of $300.0, and maturity dates of 2031 and 2034, respectively.

During the third quarter of 2024, the Company entered into five new USD to Swiss Franc cross currency swaps, with an aggregate notional value of $600.0, of which $300.0 matures in 2029 and $300.0 matures in 2034.

The table below provides information regarding the location and amount of pretax losses of derivatives designated in fair value hedging relationships:


	Amounts included in other comprehensive income
	Year Ended December 31,
	2025		2024		2023

Cross currency swaps	$	(131.3)	$	(33.7)	$	(63.3)

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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+ Details

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

12 Months Ended

Dec. 31, 2025

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information


	Year Ended December 31,
	2025		2024		2023
Cash paid during the period for:
Interest	$	217.7	$	209.2	$	221.5
Income taxes, net of refunds:
U.S. Federal	$	84.2	$	135.7	$	154.6
U.S. State	15.1		43.1		15.8
Switzerland	28.1		21.7		21.1
Germany	24.0		0.9		0.8
Other foreign	19.7		14.0		14.5
Total	$	171.1	$	215.4	$	206.8
Disclosure of non-cash financing and investing activities:


Change in accrued property, plant, and equipment	$	9.2	$	(22.5)	$	13.2

GOODWILL AND INTANGIBLE ASSETS - USEFUL LIVES (Details)	Dec. 31, 2025
Minimum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	10 years
Minimum [Member] \| Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	3 years
Minimum [Member] \| Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	3 years
Minimum [Member] \| Other
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	1 year
Maximum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	36 years
Maximum [Member] \| Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	15 years
Maximum [Member] \| Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	5 years
Maximum [Member] \| Other
Finite-Lived Intangible Assets [Line Items]
Useful life of finite-lived intangible assets, minimum (years)	15 years

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, plant and equipment, net
Gross property, plant and equipment	$ 6,351.6	$ 6,116.4
Less accumulated depreciation	(3,270.1)	(3,071.0)
Property, plant and equipment, net	3,081.5	3,045.4
Depreciation and amortization	681.1	643.5	$ 577.3
Operating Lease, Right-of-Use Asset	803.9	784.5
Land [Member]
Property, plant and equipment, net
Gross property, plant and equipment	87.5	112.3
Buildings and building improvements [Member]
Property, plant and equipment, net
Gross property, plant and equipment	1,171.6	1,098.4
Machinery and equipment [Member]
Property, plant and equipment, net
Gross property, plant and equipment	2,123.8	2,108.2
Software
Property, plant and equipment, net
Gross property, plant and equipment	1,100.8	1,023.1
Furniture and Fixtures [Member]
Property, plant and equipment, net
Gross property, plant and equipment	104.6	105.9
Leasehold improvements [Member]
Property, plant and equipment, net
Gross property, plant and equipment	577.9	550.6
Construction in progress [Member]
Property, plant and equipment, net
Gross property, plant and equipment	381.5	333.4
Property, Plant and Equipment [Member]
Property, plant and equipment, net
Depreciation and amortization	$ 401.1	$ 387.1	$ 361.1

DEBT - SCHEDULE OF SHORT-TERM DEBT (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Short-term Debt [Line Items]
3.60% Senior notes due 2025 short term	$ 0.0	$ 1,000.0
1.55% senior notes due 2026	0.0	500.0
Notes Payable, Current	0.3	0.4
Debt, Current	500.1	1,000.3
Senior Notes
Short-term Debt [Line Items]
1.55% senior notes due 2026	500.0	0.0
Short term debt issue costs
Short-term Debt [Line Items]
Short term debt issuance costs	$ (0.2)	$ (0.1)
3.60% senior noted due 2025 [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.60%
1.55% Senior Notes Due 2026 [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.55%

LEASES - Lease Term and Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	20 years
Lessee, Operating Lease, Renewal Term	20 years
Operating Lease, Cost	$ 240.7	$ 220.9	$ 202.6
Finance Lease, Right-of-Use Asset, Amortization	5.5	7.5	7.1
Finance Lease, Interest Expense	3.6	4.4	4.8
Lease, Cost	9.1	11.9	11.9
Variable Lease, Payment	24.6	32.4	32.7
Short term lease
Lessee, Lease, Description [Line Items]
Operating Lease, Expense	$ 37.7	$ 31.1	$ 31.9

PROPERTY, PLANT AND EQUIPMENT, NET (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Property, plant and equipment, net


				December 31,
	Range of Useful Lives (in Years)			2025		2024
Land				$	87.5	$	112.3
Buildings and building improvements	10	-	55	1,171.6		1,098.4
Machinery and equipment	3	-	10	2,123.8		2,108.2
Software	3	-	10	1,100.8		1,023.1
Furniture and fixtures	5	-	10	104.6		105.9
Leasehold improvements (1)				577.9		550.6
Construction in progress				381.5		333.4
Operating lease ROU assets				803.9		784.5
Total property, plant, and equipment				6,351.6		6,116.4
Less accumulated depreciation				(3,270.1)		(3,071.0)
Total Property, plant, and equipment, net				$	3,081.5	$	3,045.4

GOODWILL AND INTANGIBLE ASSETS - SCHEDULE OF GOODWILL (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Goodwill	$ 6,789.5	$ 6,369.7	$ 6,142.5
Goodwill, Acquired During Period	287.8	390.5	296.9
Adjustments to goodwill	132.0	(163.3)
Goodwill, Impairment Loss	(0.0)
Net Carrying Amount	3,596.0	3,488.9
Goodwill Impairment, Cumulative	648.5	648.5
Gross Carrying Amount	5,327.5	4,875.8
Accumulated Amortization	(2,290.7)	(1,944.4)
Finite-Lived Intangible Assets, Net	3,036.8	2,931.4
Gross Carrying Amount	5,886.7	5,433.3
Goodwill [Roll Forward]
Balance as of January 1	6,369.7	6,142.5
Adjustments to goodwill	132.0	(163.3)
Goodwill, net	6,789.5	6,369.7	6,142.5
Asset Impairment Charges	4.3	5.3	349.0
Goodwill and other asset impairments		0.0
Licensing Agreements [Member]
Goodwill [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	559.2	557.5
Customer Relationships [Member]
Goodwill [Line Items]
Gross Carrying Amount	4,525.3	4,114.7
Accumulated Amortization	(1,816.3)	(1,540.7)
Finite-Lived Intangible Assets, Net	2,709.0	2,574.0
Patents, Licenses And Technology [Member]
Goodwill [Line Items]
Gross Carrying Amount	548.7	541.0
Accumulated Amortization	(337.5)	(298.3)
Finite-Lived Intangible Assets, Net	211.2	242.7
Non-compete agreements [Member]
Goodwill [Line Items]
Gross Carrying Amount	213.5	180.2
Accumulated Amortization	(108.0)	(83.9)
Finite-Lived Intangible Assets, Net	105.5	96.3
Other
Goodwill [Line Items]
Gross Carrying Amount	40.0	39.9
Accumulated Amortization	(28.9)	(21.5)
Finite-Lived Intangible Assets, Net	11.1	18.4
Diagnostics [Member]
Goodwill [Line Items]
Goodwill	5,434.8	5,102.5	4,813.9
Goodwill, Acquired During Period	287.8	390.5
Adjustments to goodwill	44.5	(101.9)
Goodwill [Roll Forward]
Balance as of January 1	5,102.5	4,813.9
Adjustments to goodwill	44.5	(101.9)
Goodwill, net	5,434.8	5,102.5	4,813.9
Biopharma Laboratory Services
Goodwill [Line Items]
Goodwill	1,354.7	1,267.2	1,328.6
Goodwill, Acquired During Period	0.0	0.0
Adjustments to goodwill	87.5	(61.4)
Goodwill [Roll Forward]
Balance as of January 1	1,267.2	1,328.6
Adjustments to goodwill	87.5	(61.4)
Goodwill, net	$ 1,354.7	$ 1,267.2	$ 1,328.6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Effects of Interest Rate Swap on Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss)
Three month SOFR	1.706%
Long-term debt, less current portion	$ 5,084.6	$ 5,331.2
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 274.0	142.7
Senior notes due 2031
Derivative Instruments, Gain (Loss)
Subordinated Borrowing, Interest Rate	2.70%
Currency Swap [Member]
Derivative Instruments, Gain (Loss)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	$ (131.3)	$ (33.7)	$ (63.3)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2025
Audit Information [Abstract]
Auditor Firm ID	34
Auditor Name	Deloitte & Touche LLP
Auditor Location	Raleigh, North Carolina

Insider Trading Arrangements

3 Months Ended

Dec. 31, 2025

Trading Arrangements, by Individual

Material Terms of Trading Arrangement

During the quarter ended December 31, 2025, none of the Company’s directors or officers informed it of the adoption, modification or termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408, except as described in the table below:

Name and Title

Date Adopted

Character of Trading Agreement

Aggregate Number of Shares of Common Stock to be (Sold) Purchased Pursuant to Trading Agreement

Expiration Date

Peter J. Wilkinson

November 17, 2025

Rule 10b5-1 Trading Arrangement

Up to

(2,157)

(1)

October 30, 2026

(2)

Senior Vice President, Chief Accounting Officer

(1)The figure presented represents the shares to be sold on the vesting of equity awards and may vary subject to the achievement of certain performance conditions and/or shares to be withheld for tax purposes.

(2)This trading arrangement permits transactions through and including the earlier to occur of (a) the completion of all sales on the respective order entry date or (b) the expiration date listed in the table.

Non-Rule 10b5-1 Arrangement Adopted

false

Rule 10b5-1 Arrangement Terminated

false

Non-Rule 10b5-1 Arrangement Terminated

false

Peter J. Wilkinson [Member]

Trading Arrangements, by Individual

Name

Peter J. Wilkinson

Title

Senior Vice President, Chief Accounting Officer

Rule 10b5-1 Arrangement Adopted

true

November 17, 2025

October 30, 2026

347 days

2,157

DISCONTINUED OPERATIONS

12 Months Ended

Dec. 31, 2025

Discontinued Operations and Disposal Groups [Abstract]

DISCONTINUED OPERATIONS

On June 30, 2023, (the Distribution Date), Labcorp completed the Spin-off. All historical operating results of Fortrea are presented as Earnings from discontinued operations, net of tax, in the Consolidated Statements of Operations. The Spin-off is expected to be treated as tax-free for the Company and its shareholders for U.S. federal income tax purposes.

The Spin-off was achieved through the Company’s pro-rata distribution of 100% of the outstanding shares of Fortrea common stock to holders of record of Labcorp common stock. Each holder of record of Labcorp common stock received one share of Fortrea common stock for every share of Labcorp common stock.

In connection with the Spin-off, the Company entered into several agreements with Fortrea on or prior to the Distribution Date that, among other things, provide a framework for the Company’s relationship with Fortrea after the Spin-off, including a separation and distribution agreement, a tax matters agreement, an employee matters agreement, and a TSA. These agreements contained the key provisions that related to the Spin-off, including provisions related to the principal intercompany transactions required to effect the Spin-off, the conditions to the Spin-off, and provisions that governed the relationship between Fortrea and the Company after the Spin-off. The costs to provide these services are included in Operating income and the service fees earned are included in Other, net in the Consolidated Statements of Operations. The TSA between Fortrea and LCAH expired on June 30, 2025, and all services provided under the TSA terminated on or before the expiration date.

Financial Information of Discontinued Operations

Earnings from discontinued operations, net of tax in the Consolidated Statements of Operations reflect the after-tax results of Fortrea’s business and Spin-off-related fees, and do not include any allocation of general corporate overhead expense or interest expense of the Company.

The following table summarizes the significant line items included in Earnings from discontinued operations, net of tax in the Consolidated Statements of Operations:


	Year Ended December 31, 2023
Revenues	$	1,506.6
Cost of revenues	1,244.5
Gross profit	262.1
Selling, general, and administrative expenses	184.1
Amortization of intangibles and other assets	31.9

Restructuring and other charges	3.0
Operating income	43.1
Other (expense) income:
Interest expense	(0.5)

Investment expense	(1.2)
Other, net	4.2
Earnings before income taxes	45.6
Provision for income taxes	6.8


Net earnings attributable to Labcorp Holdings Inc.	$	38.8

STOCK COMPENSATION PLANS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangements by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value	$ 83.22	$ 73.08	$ 72.27
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 years	6 years	6 years
Number of shares purchased by eligible employees	0.3	0.3	0.3
Fair value of the employee's purchase right	$ 49.33	$ 47.56	$ 49.19
Risk free interest rate	4.40%	4.10%	3.40%
Expected volatility	29.70%	30.00%	29.80%
Expected dividend yield	1.20%	1.30%	1.40%
Shares of common stock authorized for issuance under the employee stock purchase plan	2.5
The employee stock purchase plan permits employees to purchase shares of common stock at a certain percentage of the market price (in hundredths)	85.00%
Expense related to the Company's employee stock purchase plan	$ 15.1	$ 14.9	$ 13.8
Unrecognized compensation cost related to nonvested restricted stock and performance share-based compensation arrangements	$ 106.2
Performance share awards, vesting conditions	Performance share awards are subject to certain earnings per share, revenue, and total shareholder return targets
Restricted stock, vesting increment	one-third increments beginning on the first anniversary of the grant
Cash received by the Company	$ 2.5	6.5	2.9
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	0.6	1.6	0.7
Aggregate intrinsic value	$ 1.4	1.6	0.7
Unrecognized compensation cost weighted average expected future recognition period (in years)	1 year 8 months 12 days
Restricted stock and performance share compensation expense	$ 104.8	96.6	111.1
Shares available for grant under the Company's stock option plans	3.0
Stock option plan expense	$ 5.9	$ 5.2	$ 3.8
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	3.1
Shares Available For Issuance or Grant Under 2016 Omnibus Plan	0.0
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Risk free interest rate	4.30%	5.00%	5.00%
Expected volatility	22.80%	27.90%	30.00%
Expected dividend yield	1.20%	1.30%	1.40%
Restricted Stock and Performance Shares [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 235.13
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	0.9	0.9
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 237.94	$ 226.44
Number of options granted	0.5
Weighted-average grant date fair value, granted	$ 251.06
Number of options vested	(0.4)
Weighted-average grant date fair value, vested	$ 226.54
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(0.1)
Stock Options [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Aggregate intrinsic value, exercisable options	$ 41.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	0.7	0.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 187.16	$ 180.29
Number of options granted	0.1
Weighted-average exercise price per option granted	$ 245.14
Weighted-average remaining contractual term of options outstanding (in years)	4 years 10 months 24 days
Aggregate intrinsic value of options outstanding	$ 43.7
Number of options exercisable	0.5
Weighted-average exercise price per exercisable option	$ 174.47
Weighted-average remaining contractual term, exercisable options (in years)	3 years 10 months 24 days

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY

PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY

The Company is authorized to issue up to 265.0 shares of its Common Stock. The Company is authorized to issue up to 30.0 shares of preferred stock, par value $0.10 per share. There were no preferred shares outstanding at December 31, 2025, and 2024.

The changes in the Company’s shares of Common Stock issued and outstanding are summarized below:


	Year Ended December 31,
	2025	2024	2023
Beginning balance	83.4	83.9	88.2
Shares issued under employee stock plans	0.6	0.6	0.5


Shares repurchased	(1.8)	(1.1)	(4.8)
Ending balance	82.2	83.4	83.9

Share Repurchase Program

On July 24, 2024, the Company’s Board adopted a share repurchase plan authorizing the repurchase of up to $1,000.0 maximum value of the Company’s shares in addition to the remaining amount outstanding under the previous plan.

During the twelve months ended December 31, 2025, the Company purchased 1.8 shares of its Common Stock at an average price of $254.17 for a total cost of $450.0. During the twelve months ended December 31, 2024, the Company purchased 1.1 shares of its Common Stock at an average price of $219.57 for a total cost of $250.1. At December 31, 2025, the Company had outstanding authorization from its Board to purchase up to $830.4 maximum value of the Company’s Common Stock.

On August 8, 2023, the Company entered into accelerated share repurchase agreements (collectively, the ASR Agreements) with two different banks, Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC (collectively, the Financial Institutions), to repurchase approximately $1,000.0 in the aggregate of the Company’s Common Stock, as part of the Company’s Common Stock repurchase program. The remaining repurchase authorization has no expiration date.

Under the ASR Agreements, the Company made an aggregate payment of $1,000.0 to the Financial Institutions and received an aggregate initial number of approximately 3.7 shares of Common Stock from the Financial Institutions, which were removed from the outstanding share count in connection with entering into the ASR Agreements. In December 2023, the Company received 1.1 shares of its Common Stock as a final settlement from the Financial Institutions. The average daily volume weighted-average price less discount per share was $206.85. The Company had accrued $9.0 of excise tax related to this accelerated share repurchase which was paid in April 2024.

During the fourth quarter of 2021, the Company’s Board adopted a share repurchase plan authorizing up to $2,500.0 of the Company’s shares in addition to the remaining amount outstanding under the previous plan.

When the Company repurchases shares of Common Stock, the amount paid to repurchase the shares in excess of the par or stated value is allocated to Additional paid-in-capital within the Consolidated Balance Sheet unless subject to limitation or the balance in Additional paid-in-capital is exhausted. Remaining amounts are recognized as a reduction in Retained earnings within the Company’s Consolidated Balance Sheets.

Dividends

The Company started declaring quarterly cash dividends in the second quarter of 2022, with a total of $2.88 per share declared in 2025, 2024, and 2023.

On January 14, 2026, the Company announced a cash dividend of $0.72 per share of Common Stock, or approximately $61.0 in the aggregate. The dividend will be paid on March 12, 2026, to stockholders of record of all issued and outstanding shares of Common Stock as of the close of business on February 27, 2026. The declaration and payment of any future dividends will be at the discretion of the Board.

Accumulated Other Comprehensive Loss

The components of Accumulated other comprehensive loss were as follows:


	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Loss




Balance at December 31, 2022	$	(462.3)	$	(30.9)	$	(493.2)
Fortrea Holdings Inc. spin-off	231.6		6.4		238.0
Current year adjustments	183.1		30.1		213.2
Pension settlement charge	—		(10.9)		(10.9)
Amounts reclassified from accumulated other comprehensive earnings (1)	—		(4.6)		(4.6)
Tax effect of adjustments	—		(1.8)		(1.8)
Balance at December 31, 2023	$	(47.6)	$	(11.7)	$	(59.3)

Current year adjustments	(217.1)		(2.6)		(219.7)

Amounts reclassified from Accumulated other comprehensive earnings (1)	—		23.3		23.3
Tax effect of adjustments	—		(5.9)		(5.9)
Balance at December 31, 2024	$	(264.7)	$	3.1	$	(261.6)
Current year adjustments	231.7		16.2		247.9
Pension settlement charge	—		(11.1)		(11.1)
Amounts reclassified from Accumulated other comprehensive earnings (1)	—		(1.9)		(1.9)
Tax effect of adjustments	—		(0.9)		(0.9)
Balance at December 31, 2025	$	(33.0)	$	5.4	$	(27.6)

(1) The amortization of prior service cost is included in the computation of net periodic benefit cost.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477968/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477968/946-235-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478448/946-505-50-6

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480237/815-40-50-6

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/505/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-14

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-14

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-16

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-18

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-18

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-18

+ Details

LEASES (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Lease, Cost

The components of lease expense were as follows:


	Year Ended December 31,
	2025		2024		2023
Operating lease cost	$	240.7	$	220.9	$	202.6

Finance lease cost:
Amortization of ROU assets	$	5.5	$	7.5	$	7.1
Interest on lease liabilities	3.6		4.4		4.8
Total finance lease cost	$	9.1	$	11.9	$	11.9

Supplemental cash flow information related to leases was as follows:


	Year Ended December 31,
	2025		2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used from operating leases	$	(245.1)	$	(229.7)	$	(209.7)
Operating cash flows used from finance leases	$	(3.6)	$	(4.4)	$	(4.8)
Financing cash flows used from finance leases	$	(8.8)	$	(11.9)	$	(12.6)

ROU assets obtained in exchange for lease obligations:
Operating leases	$	63.0	$	226.8	$	106.4
Finance leases	$	0.2	$	23.9	$	2.3

Lease Disclosure Table Text Block

Supplemental balance sheet information related to leases was as follows:


	December 31,
	2025			2024
Operating Leases:
Operating lease ROU assets (included in Property, plant, and equipment, net)	$	803.9		$	784.5

Short-term operating lease liabilities	$	191.1		$	184.6
Operating lease liabilities	682.6			676.3
Total operating lease liabilities	$	873.7		$	860.9


Finance Leases:

Finance lease ROU assets (included in Other assets, net)	$	52.8		$	64.1

Short-term finance lease liabilities	$	4.6		$	6.1
Financing lease liabilities	63.0			74.3
Total finance lease liabilities	$	67.6		$	80.4

Weighted-average Remaining Lease Term (in Years):
Operating leases	8.1			8.2
Finance leases	14.4			14.1

Weighted-average Discount Rate:
Operating leases	4.5		%	4.4		%
Finance leases	5.1		%	5.2		%

Lessee, Operating Lease, Liability, Maturity

Maturities of lease liabilities were as follows:


	December 31, 2025
	Operating Leases		Finance Leases
2026	$	224.1	$	7.9
2027	171.8		7.4
2028	126.7		6.8
2029	92.8		6.5
2030	79.1		6.4
Thereafter	350.9		61.4
Total lease payments	1,045.4		96.4
Less imputed interest	(171.7)		(28.8)
Less current portion	(191.1)		(4.6)
Total maturities, due beyond one year	$	682.6	$	63.0

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) yr segement	Dec. 31, 2024 USD ($)	Dec. 31, 2023	Dec. 31, 2025 CAD ($)	Dec. 31, 2024 CAD ($)
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	100.00%	100.00%	100.00%
Number of Reportable Segments \| segement	2
Cash, Uninsured Amount	$ 529.9	$ 1,516.0
Accounts receivable balances (gross) from Medicare and Medicaid	$ 126.1	$ 97.4
Accounts receivable from Ontario government sponsored healthcare plan				$ 5.8	$ 6.4
Percent of gross accounts receivable due from patients	22.60%	24.50%		22.60%	24.50%
Inventory, Supplies, Net of Reserves	$ 386.2	$ 384.2
Inventory, Finished Goods, Net of Reserves	148.5	109.0
Inventory Valuation Reserves	$ 26.7	43.8
Estimated useful life of capitalized software minimum (in years) \| yr	3
Estimated useful life of capitalized software maximum (in years) \| yr	15
Estimated useful life of capitalized software costs (in years) \| yr	5
Ownership percentage below which investments are generally accounted for on the cost method (in hundredths)	20.00%
Investments	$ 201.9	$ 199.7
Minimum threshold percentage required to recognize income tax benefit (in hundredths)	50.00%			50.00%
DeferredTaxAssetAccelerationOverNextTwoYears	$ 194.7
Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	78.00%	78.00%	77.00%
Biopharma Laboratory Services
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	22.00%	22.00%	23.00%

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Reconciliation of Basic earnings per Share to Diluted Earnings per Share

The following represents a reconciliation of Basic EPS to Diluted EPS:


	Year Ended December 31,
	2025					2024					2023
	Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS

Net earnings attributable to LHI	$	876.5		$	876.5	$	746.0		$	746.0	$	418.0		$	418.0
Weighted-average common shares outstanding	83.2		0.6	83.8		83.9		0.5	84.4		87.1		0.5	87.6
Per share amount	$	10.54		$	10.46	$	8.89		$	8.84	$	4.80		$	4.77

Potential common shares not included in computation of diluted earnings per share

The following table summarizes the potential common shares not included in the computation of Diluted EPS because their impact would have been antidilutive:


	Year Ended December 31,
	2025	2024	2023
Employee stock options and awards	0.1	0.2	0.2

LEASES

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

LEASES

The Company has operating and finance leases for PSCs, laboratories and testing facilities, clinical facilities, general office spaces, vehicles, and office and laboratory equipment. Leases have remaining lease terms of less than a year to approximately 20 years, some of which include options to extend the leases for up to an additional 20 years.

The components of lease expense were as follows:


	Year Ended December 31,
	2025		2024		2023
Operating lease cost	$	240.7	$	220.9	$	202.6

Finance lease cost:
Amortization of ROU assets	$	5.5	$	7.5	$	7.1
Interest on lease liabilities	3.6		4.4		4.8
Total finance lease cost	$	9.1	$	11.9	$	11.9

Supplemental cash flow information related to leases was as follows:


	Year Ended December 31,
	2025		2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used from operating leases	$	(245.1)	$	(229.7)	$	(209.7)
Operating cash flows used from finance leases	$	(3.6)	$	(4.4)	$	(4.8)
Financing cash flows used from finance leases	$	(8.8)	$	(11.9)	$	(12.6)

ROU assets obtained in exchange for lease obligations:
Operating leases	$	63.0	$	226.8	$	106.4
Finance leases	$	0.2	$	23.9	$	2.3

Supplemental balance sheet information related to leases was as follows:


	December 31,
	2025			2024
Operating Leases:
Operating lease ROU assets (included in Property, plant, and equipment, net)	$	803.9		$	784.5

Short-term operating lease liabilities	$	191.1		$	184.6
Operating lease liabilities	682.6			676.3
Total operating lease liabilities	$	873.7		$	860.9


Finance Leases:

Finance lease ROU assets (included in Other assets, net)	$	52.8		$	64.1

Short-term finance lease liabilities	$	4.6		$	6.1
Financing lease liabilities	63.0			74.3
Total finance lease liabilities	$	67.6		$	80.4

Weighted-average Remaining Lease Term (in Years):
Operating leases	8.1			8.2
Finance leases	14.4			14.1

Weighted-average Discount Rate:
Operating leases	4.5		%	4.4		%
Finance leases	5.1		%	5.2		%

Maturities of lease liabilities were as follows:


	December 31, 2025
	Operating Leases		Finance Leases
2026	$	224.1	$	7.9
2027	171.8		7.4
2028	126.7		6.8
2029	92.8		6.5
2030	79.1		6.4
Thereafter	350.9		61.4
Total lease payments	1,045.4		96.4
Less imputed interest	(171.7)		(28.8)
Less current portion	(191.1)		(4.6)
Total maturities, due beyond one year	$	682.6	$	63.0

The Company elected, for all classes of underlying assets, to account for lease components and non-lease components as a single lease component.

Rent expense for short-term leases for the years ended December 31, 2025, 2024, and 2023 amounted to $37.7, $31.1, $31.9, respectively. The Company has variable lease payments that do not depend on a rate index, primarily for purchase

volume commitments, which are recorded as variable cost when incurred. Total variable payments for the year ended December 31, 2025, 2024, and 2023 were $24.6, $32.4, and $32.7, respectively.

LEASES - Supplemental Cash Flow (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating Lease, Payments	$ (245.1)	$ (229.7)	$ (209.7)
Finance Lease, Interest Payment on Liability	(3.6)	(4.4)	(4.8)
Finance Lease, Principal Payments	(8.8)	(11.9)	(12.6)
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	63.0	226.8	106.4
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 0.2	$ 23.9	$ 2.3

INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

The sources of Earnings from continuing operations before income taxes, classified between domestic and foreign entities, are as follows:


	Year Ended December 31,
	2025		2024		2023
Domestic	$	728.9	$	629.7	$	504.0
Foreign	378.6		329.8		64.9
Total Earnings from continuing operations before income taxes	$	1,107.5	$	959.5	$	568.9

Provision for Income Tax Expense (Benefit)

The components of income tax expense attributable to continuing operations are as follows:


	Year Ended December 31,
	2025		2024		2023
Current tax expense:
Federal	$	64.6	$	125.9	$	183.1
State	12.5		46.2		38.9
Foreign	55.1		60.4		44.6
	$	132.2	$	232.5	$	266.6
Deferred tax expense (benefit):
Federal	$	83.1	$	(6.3)	$	(63.1)
State	15.9		(11.1)		(31.6)
Foreign	(1.4)		(2.7)		16.6
	97.6		(20.1)		(78.1)
Total Provision for income taxes	$	229.8	$	212.4	$	188.5

Schedule of Effective Income Tax Rate Reconciliation

The effective tax rates on earnings before income taxes are reconciled to statutory U.S. income tax rates as follows:


	Year Ended December 31,
	2025				2024				2023
	Amount		%		Amount		%		Amount		%
Statutory U.S. rate	$	232.6	21.0	%	$	201.5	21.0	%	$	119.5	21.0	%
State and local income taxes, net of federal income tax effects (1)	24.3		2.2	%	23.4		2.4	%	2.7		0.5	%
Foreign tax effects:
Canada:
Deferred tax adjustments	0.4		—	%	0.5		0.1	%	9.9		1.7	%
Other	1.1		0.1	%	(2.5)		(0.3)	%	3.3		0.6	%
Germany:
Deferred tax adjustments	(0.2)		—	%	(0.2)		—	%	(6.8)		(1.2)	%
Other	1.1		0.1	%	1.1		0.1	%	5.8		1.0	%
United Kingdom:
Goodwill impairment	—		—	%	—		—	%	39.1		6.9	%
Deferred tax adjustments	0.3		—	%	—		—	%	12.9		2.3	%
Other	(0.3)		—	%	(0.4)		—	%	5.1		0.8	%
Switzerland:
Foreign rate differential	(16.9)		(1.5)	%	(16.0)		(1.7)	%	(16.1)		(2.8)	%
Other	2.7		0.2	%	3.8		0.4	%	0.6		0.1	%
Other foreign jurisdictions	(0.4)		—	%	(0.3)		—	%	1.0		0.2	%
Enactment of new tax laws	—		—	%	—		—	%	—		—	%
Effect of cross-border tax laws:
Other	3.0		0.3	%	4.5		0.5	%	2.1		0.4	%
Tax credits:
R&D tax credits	(16.2)		(1.5)	%	(18.0)		(1.9)	%	(13.2)		(2.3)	%
Other	(1.1)		(0.1)	%	(0.7)		(0.1)	%	(1.3)		(0.2)	%
Valuation allowances	0.5		—	%	(1.4)		(0.1)	%	—		—	%
Nontaxable or nondeductible items:
Goodwill impairment	—		—	%	—		—	%	18.1		3.2	%
Officer compensation	8.3		0.7	%	6.9		0.7	%	9.9		1.7	%
Worthless stock loss	—		—	%	—		—	%	(14.8)		(2.6)	%
Other	5.3		0.5	%	7.5		0.8	%	5.7		1.0	%
Changes in unrecognized tax benefits	(8.3)		(0.7)	%	1.9		0.2	%	(1.0)		(0.2)	%
Other adjustments:
Deferred tax adjustments	0.1		—	%	3.2		0.3	%	6.4		1.1	%
Other	(6.5)		(0.6)	%	(2.4)		(0.3)	%	(0.4)		(0.1)	%
Effective tax rate	$	229.8	20.7	%	$	212.4	22.1	%	$	188.5	33.1	%

(1) State taxes in California, New Jersey, and New York contributed to the majority of the tax effect in this category

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows:


	December 31,
	2025		2024
Deferred tax assets:
Derivative instruments	$	69.7	$	36.5
Employee compensation and benefits	69.0		70.8
Operating lease liability	198.0		199.3


Credit carryforwards	45.2		0.4
Capitalized R&D costs	98.2		194.7
Tax loss carryforwards	226.4		224.0
Other	118.2		114.3
Total gross deferred tax assets	824.7		840.0
Less: valuation allowance	(128.1)		(127.2)
Deferred tax assets, net of valuation allowance	$	696.6	$	712.8

Deferred tax liabilities:

Right of use asset	$	(182.9)	$	(181.6)
Intangible assets	(663.3)		(626.7)
Property, plant, and equipment	(216.7)		(177.7)

Other	(64.5)		(71.7)
Total gross deferred tax liabilities	$	(1,127.4)	$	(1,057.7)

Net deferred tax liabilities	$	(430.8)	$	(344.9)

Valuation Allowance [Line Items]

Summary of Valuation Allowance [Table Text Block]

The table below provides a rollforward of the valuation allowance:


	Year Ended December 31,
	2025		2024		2023
Beginning balance	$	127.2	$	150.2	$	151.3
Movements charged to expense	0.3		(22.8)		(8.9)
Reductions and other adjustments	0.6		(0.2)		7.8
Ending balance	$	128.1	$	127.2	$	150.2

Schedule of Unrecognized Tax Benefits Roll Forward

The following table shows a reconciliation of the unrecognized income tax benefits, excluding interest and penalties, from uncertain tax positions:


	Year Ended December 31,
	2025		2024		2023
Beginning balance	$	32.2	$	29.9	$	37.5
Increase in reserve for tax positions taken in the current year	2.2		2.2		1.8
Increase in reserve for tax positions taken in a prior period	5.5		3.8		10.4
Decrease in reserve for tax positions taken in a prior period	(15.4)		(3.4)		(4.0)
Decrease in reserve as a result of settlements	—		(0.1)		(7.2)

Decrease in reserve as a result of lapses in the statute of limitations	—		(0.2)		(8.6)
Ending balance	$	24.5	$	32.2	$	29.9

DEBT - CREDIT FACILITIES (Details) - USD ($) $ in Millions	12 Months Ended
DEBT - CREDIT FACILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jan. 28, 2026	Jan. 31, 2025	Aug. 24, 2024
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount	$ 110.2
Repayments of Lines of Credit	64.8	$ 2,463.7	$ 2,488.2
Proceeds from accounts receivable securitization	225.0	$ 300.0	$ 0.0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,000.0
Credit Facility Option to Increase	500.0
Credit Facility, Maximum Swing Line Borrowings	100.0
Credit Facility, Maximum Letters of Credit	$ 150.0
Line of Credit Facility, Interest Rate Description	a floating rate equal to either (i) a SOFR-based rate plus a margin ranging from 0.805% to 1.300% or (ii) a base rate plus a margin ranging from 0.0% to 0.300%
Line of Credit Facility, Commitment Fee Description	0.070% to 0.200%
Line of Credit Facility, Interest Rate at Period End	4.73%
Revolving Credit Facility, amount outstanding	$ 0.0
Accounts receivable securitizaiton
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 700.0	$ 700.0
Line of Credit Facility, Current Borrowing Capacity					$ 300.0	$ 300.0
Accounts receivable securitizaiton \| Subsequent Event
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 825.0
Line of Credit Facility, Current Borrowing Capacity				$ 700.0

CONSOLIDATED BALANCE SHEETS (Parentheticals) - shares shares in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity, Attributable to Parent [Abstract]
Common stock, 82.2 and 83.4 shares outstanding at December 31, 2025, and 2024, respectively	82.2	83.4	83.9	88.2

PENSION AND POSTRETIREMENT PLANS - Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	5.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	100.00%
Domestic Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	$ (23.2)	$ (14.4)
Non-US
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	10.3	5.7
Other Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	30.3	30.7
Other Liabilities [Member] \| Non-US
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	28.5	27.5
Accrued Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	2.7	2.6
Accrued Liabilities [Member] \| Non-US
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	0.8	0.7
Other Assets \| Domestic Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	9.8	18.9
Other Assets \| Non-US
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded status — (deficit) surplus	$ 39.6	$ 33.9

LEASES - Supplemental Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 803.9	$ 784.5
Short-term operating lease liabilities	191.1	184.6
Operating lease liabilities	682.6	676.3
Operating Lease, Liability	873.7	860.9
Finance Lease, Right-of-Use Asset	52.8	64.1
Short-term finance lease liabilities	4.6	6.1
Financing lease liabilities	63.0	74.3
Finance Lease, Liability	$ 67.6	$ 80.4
Operating Lease, Weighted Average Remaining Lease Term	8 years 1 month 6 days	8 years 2 months 12 days
Finance Lease, Weighted Average Remaining Lease Term	14 years 4 months 24 days	14 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	4.50%	4.40%
Finance Lease, Weighted Average Discount Rate, Percent	5.10%	5.20%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant, and equipment, net	Property, plant, and equipment, net
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets, net	Other assets, net

PENSION AND POSTRETIREMENT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans Disclosures [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	100.00%
Defined Contribution Plan Total Expense	$ 166.1	$ 153.5	$ 167.6
Defined Benefit Plan, Interest Cost	0.2	0.2	0.2
Net amortization and deferral	0.3	0.2	0.0
Defined benefit plan costs	(0.1)	0.0	0.2
Unamortized net gain included in accumulated other comprehensive earnings	(0.5)	(0.8)
Net amortization and deferral	(0.3)	(0.2)	0.0
Defined benefit plan costs	(0.1)	0.0	0.2
Defined Benefit Plan, Benefit Obligation	2.9	3.2	3.6
Actuarial (gain) loss	0.1	(0.2)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	0.6	0.4
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(0.6)	(0.4)
Defined Benefit Plan, Plan Assets, Amount	323.9	303.7
Tax effect of adjustments, Net Benefit Plan Adjustments	(0.9)	(5.9)	(1.8)
Accumulated Other Comprehensive Loss	$ (27.6)	$ (261.6)	(59.3)	$ (493.2)
Discount rate for the Company Plan	5.40%	5.60%
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 8.4
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	0.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	0.3
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	0.2
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 1.0
Maximum deferral percentage of annual cash incentive pay	100.00%
Maximum deferral percentage of annual base salary	50.00%
Deferred compensation plan obligation	$ 150.5	$ 132.5
Non-US
Defined Benefit Plans Disclosures [Line Items]
Service cost	1.5	1.5	1.4
Defined Benefit Plan, Interest Cost	15.9	14.7	15.2
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(17.8)	(16.0)	(16.7)
Net amortization and deferral	0.2	0.5	0.1
Defined benefit plan costs	(0.2)	0.7	0.0
Unamortized net gain included in accumulated other comprehensive earnings	13.7	12.8
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	17.8	16.0	16.7
Net amortization and deferral	(0.2)	(0.5)	(0.1)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0.0	0.0	0.0
Defined benefit plan costs	(0.2)	0.7	0.0
Defined Benefit Plan, Benefit Obligation	313.6	298.0	345.7
Actuarial (gain) loss	(9.0)	(43.1)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	17.1	14.4
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(17.1)	(14.4)
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	0.0	0.0
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	24.3	6.4
Defined Benefit Plan, Plan Assets, Amount	323.9	303.7	$ 335.9
Employer contributions	5.3	7.6
Actual return on plan assets	7.9	(20.9)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	23.3	(5.2)
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (10.3)	$ (5.7)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.50%	3.70%	4.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase	2.00%	2.00%	2.00%
Expected long term rate of return for the Company Plan	5.70%	4.10%	5.30%
Funded status — (deficit) surplus	$ 10.3	$ 5.7
Discount rate for the Company Plan	5.30%	5.20%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	2.00%	2.00%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 18.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	19.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	19.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	20.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	20.0
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	103.0
Sensitivity Projection - Retirement Plan Expense	0.6
Sensitivity Projection - Expected Return on Plan Assets	3.1
Defined Benefit Plan, Plan Assets, Payment for Settlement	0.0	$ 0.0
Pension Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Sensitivity Projection - Expected Return on Plan Assets	1.8
Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Service cost	2.6	3.7	$ 3.9
Defined Benefit Plan, Interest Cost	11.2	11.1	12.3
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(11.0)	(11.0)	(11.6)
Net amortization and deferral	2.2	3.3	4.5
Defined benefit plan costs	16.1	7.1	20.0
Unamortized net gain included in accumulated other comprehensive earnings	26.0	30.7
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	11.0	11.0	11.6
Net amortization and deferral	(2.2)	(3.3)	(4.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(11.1)	0.0	(10.9)
Defined benefit plan costs	16.1	7.1	20.0
Defined Benefit Plan, Benefit Obligation	174.2	213.4	231.9
Actuarial (gain) loss	13.0	(10.6)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	9.9	22.7
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(9.9)	(22.7)
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	(56.1)	0.0
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0.0	0.0
Defined Benefit Plan, Plan Assets, Amount	151.0	199.0	$ 195.3
Employer contributions	0.0	10.2
Actual return on plan assets	15.3	13.7
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	0.0	0.0
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ 23.2	$ 14.4
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	5.60%	5.10%	5.50%
Expected long term rate of return for the Company Plan	6.00%	6.00%	6.00%
Funded status — (deficit) surplus	$ (23.2)	$ (14.4)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate	4.00%	4.00%	4.00%
Discount rate for the Company Plan	5.20%	5.60%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 20.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	16.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	17.9
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	18.4
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	18.7
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	68.0
Sensitivity Projection - Retirement Plan Expense	0.3
Defined Benefit Plan, Plan Assets, Payment for Settlement	56.1	$ 0.0	$ 10.9
Other Liabilities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Benefit Obligation	2.5	2.7
Other Liabilities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(28.5)	(27.5)
Funded status — (deficit) surplus	28.5	27.5
Other Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(30.3)	(30.7)
Funded status — (deficit) surplus	30.3	30.7
Accrued Liabilities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Benefit Obligation	0.4	0.5
Accrued Liabilities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(0.8)	(0.7)
Funded status — (deficit) surplus	0.8	0.7
Accrued Liabilities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(2.7)	(2.6)
Funded status — (deficit) surplus	$ 2.7	2.6
Other Investments \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	10.00%
Other Investments \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Other Investments \| Maximum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%
Other Investments \| Maximum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Other Investments \| Minimum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Other Investments \| Minimum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Equity Securities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	9.80%
Equity Securities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	19.40%
Equity Securities [Member] \| Maximum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%
Equity Securities [Member] \| Maximum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	25.50%
Equity Securities [Member] \| Minimum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Equity Securities [Member] \| Minimum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	13.00%
Fixed Income Securities [Member] \| Minimum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	67.00%
Debt Securities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	64.40%
Debt Securities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	76.80%
Debt Securities [Member] \| Maximum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	80.00%
Debt Securities [Member] \| Maximum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	87.00%
Debt Securities [Member] \| Minimum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	45.00%
Life and Annuity Insurance Product Line [Member] \| Maximum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	30.00%
Life and Annuity Insurance Product Line [Member] \| Maximum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Life and Annuity Insurance Product Line [Member] \| Minimum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Life and Annuity Insurance Product Line [Member] \| Minimum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Real Estate Funds [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.90%
Real Estate Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Real Estate Funds [Member] \| Maximum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Real Estate Funds [Member] \| Maximum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	4.30%
Real Estate Funds [Member] \| Minimum [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Real Estate Funds [Member] \| Minimum [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.50%
Variable Annuity [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	14.90%
Variable Annuity [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.00%
Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 80.6	49.9
Fair Value, Inputs, Level 1 [Member] \| Real Estate Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value, Inputs, Level 1 [Member] \| Cash and Cash Equivalents [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	32.5	4.1
Fair Value, Inputs, Level 1 [Member] \| Cash and Cash Equivalents [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2.8	4.9
Fair Value, Inputs, Level 1 [Member] \| Equity Funds \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value, Inputs, Level 1 [Member] \| International - developed [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value, Inputs, Level 1 [Member] \| General Bond Index Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Fair Value Measured at Net Asset Value Per Share \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	148.2	194.1
Fair Value Measured at Net Asset Value Per Share \| Life and Annuity Insurance Product Line [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value Measured at Net Asset Value Per Share \| Real Estate Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2.8	3.8
Fair Value Measured at Net Asset Value Per Share \| Cash and Cash Equivalents [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value Measured at Net Asset Value Per Share \| Cash and Cash Equivalents [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Fair Value Measured at Net Asset Value Per Share \| Equity Funds \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	20.4	25.9
Fair Value Measured at Net Asset Value Per Share \| International - developed [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8.9	10.6
Fair Value Measured at Net Asset Value Per Share \| General Bond Index Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	116.1	153.8
Fair Value Measured at Net Asset Value Per Share \| Pooled Investment Funds [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Fair Value, Inputs, Level 3 [Member] \| Life and Annuity Insurance Product Line [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	48.1	45.8	$ 52.8
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held	2.3	(7.0)
Fair Value, Inputs, Level 3 [Member] \| Pooled Investment Funds [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 0.0	$ 0.0

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

Changes in common shares issued and held in treasury

The changes in the Company’s shares of Common Stock issued and outstanding are summarized below:


	Year Ended December 31,
	2025	2024	2023
Beginning balance	83.4	83.9	88.2
Shares issued under employee stock plans	0.6	0.6	0.5


Shares repurchased	(1.8)	(1.1)	(4.8)
Ending balance	82.2	83.4	83.9

Schedule of Accumulated Other Comprehensive Income (Loss)

The components of Accumulated other comprehensive loss were as follows:


	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Loss




Balance at December 31, 2022	$	(462.3)	$	(30.9)	$	(493.2)
Fortrea Holdings Inc. spin-off	231.6		6.4		238.0
Current year adjustments	183.1		30.1		213.2
Pension settlement charge	—		(10.9)		(10.9)
Amounts reclassified from accumulated other comprehensive earnings (1)	—		(4.6)		(4.6)
Tax effect of adjustments	—		(1.8)		(1.8)
Balance at December 31, 2023	$	(47.6)	$	(11.7)	$	(59.3)

Current year adjustments	(217.1)		(2.6)		(219.7)

Amounts reclassified from Accumulated other comprehensive earnings (1)	—		23.3		23.3
Tax effect of adjustments	—		(5.9)		(5.9)
Balance at December 31, 2024	$	(264.7)	$	3.1	$	(261.6)
Current year adjustments	231.7		16.2		247.9
Pension settlement charge	—		(11.1)		(11.1)
Amounts reclassified from Accumulated other comprehensive earnings (1)	—		(1.9)		(1.9)
Tax effect of adjustments	—		(0.9)		(0.9)
Balance at December 31, 2025	$	(33.0)	$	5.4	$	(27.6)

(1) The amortization of prior service cost is included in the computation of net periodic benefit cost.

ACCRUED EXPENSES AND OTHER (Tables)

12 Months Ended

Dec. 31, 2025

Payables and Accruals [Abstract]

Accrued expenses and other


	December 31,
	2025		2024
Employee compensation and benefits	$	423.9	$	495.4

Accrued taxes payable	160.3		152.7






Other	263.6		223.1
Total Accrued expenses and other	$	847.8	$	871.2

BUSINESS SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]


	Year Ended December 31, 2025
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	10,876.5	$	3,098.2	$	(23.0)	$	13,951.7

Operating Earnings:
Labor	4,687.6		1,221.6
Supplies	2,357.0		478.5
Shipping costs			398.8
Depreciation	258.8		116.0
Other operating expenses	1,793.2		384.8
Segment operating income	$	1,779.9	$	498.5			$	2,278.4
General corporate and unallocated expenses							(482.2)
Amortization of intangibles and other assets							(280.0)
Restructuring and other charges							(127.2)
Goodwill and other asset impairments							(4.3)
Total Operating income							1,384.7
Other (expense) income:
Interest expense							(224.1)
Investment income							15.2
Equity method loss, net							(13.3)
Other, net							(55.0)
Earnings from operations before income taxes							$	1,107.5


	Year Ended December 31, 2024
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	10,144.3	$	2,922.6	$	(58.0)	$	13,008.9

Operating Earnings:
Labor	4,438.7		1,165.3
Supplies	2,209.6		441.9
Shipping costs			365.8
Depreciation	259.0		122.6
Other operating expenses	1,630.7		368.1
Segment operating income	$	1,606.3	$	458.9			$	2,065.2
General corporate and unallocated expenses							(670.8)
Amortization of intangibles and other assets							(256.4)
Restructuring and other charges							(46.0)
Goodwill and other asset impairments							(5.3)
Total Operating income							1,086.7
Other (expense) income:
Interest expense							(208.3)
Investment income							22.3
Equity method loss, net							(1.4)
Other, net							60.2
Earnings from operations before income taxes							$	959.5


	Year Ended December 31, 2023
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	9,415.1	$	2,774.2	$	(27.7)	$	12,161.6



Operating Earnings:
Labor	4,095.7		1,094.0
Supplies	2,066.0		452.2
Shipping costs			333.0
Depreciation	236.1		112.5
Other operating expenses	1,426.0		386.2
Segment operating income	$	1,591.3	396.3				$	1,987.6
General corporate and unallocated expenses							(644.1)
Amortization of intangibles and other assets							(219.8)
Restructuring and other charges							(49.1)
Goodwill and other asset impairments							(349.0)
Total Operating income							725.6
Other (expense) income:
Interest expense							(199.6)
Investment income							28.8
Equity method income, net							(1.4)
Other, net							15.5
Earnings from continuing operations before income taxes							$	568.9

Geographic distribution of Property, plant, and equipment, net:


	Year Ended December 31,
	2025		2024
North America	$	2,587.1	$	2,576.1
Europe	370.4		355.5
Other	124.0		113.8
Total Property, plant, and equipment, net	$	3,081.5	$	3,045.4

RESTRUCTURING AND OTHER CHARGES (Tables)

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

The components of Restructuring and other charges were as follows:


	Year Ended December 31,
	2025		2024		2023
Severance and other personnel costs	$	27.2	$	43.0	$	33.4
Facility-related costs	17.9		5.9		22.3
Contract termination costs	13.9		—		—
Long-lived asset impairment and other non-cash charges	101.3		—		—
Reversal of previously established restructuring accruals	(33.1)		(2.9)		(6.6)
Total Restructuring and other charges (1)	$	127.2	$	46.0	$	49.1

Schedule of Restructuring Reserves

The activity within the restructuring liabilities established were as follows:


	Severance and Other Personnel Costs		Facility-related Costs		Contract Termination Costs		Total
Liability balance at December 31, 2023	$	7.6	$	13.0	$	—	$	20.6
Restructuring charges	43.0		5.9		—		48.9

Reduction of prior restructuring accruals	(2.5)		(0.4)		—		(2.9)
Cash payments and other adjustments	(39.7)		(5.6)		—		(45.3)
Liability balance at December 31, 2024	8.4		12.9		—		21.3
Restructuring charges	27.2		17.9		13.9		59.0

Reduction of prior restructuring accruals	(2.5)		(30.6)		—		(33.1)
Cash payments and other adjustments	(32.1)		4.7		—		(27.4)
Liability balance at December 31, 2025	$	1.0	$	4.9	$	13.9	$	19.8
Liability balance classified as current							$	7.8
Liability balance classified as non-current							12.0
Total liability balance at December 31, 2025							$	19.8

BUSINESS SEGMENT INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenues	$ 13,951.7	$ 13,008.9	$ 12,161.6
Operating Income (Loss)	1,384.7	1,086.7	725.6
Amortization of intangibles and other assets	(280.0)	(256.4)	(219.8)
Restructuring and other charges	127.2	46.0	49.1
Asset Impairment Charges	4.3	5.3	349.0
Property, plant, and equipment, net	3,081.5	3,045.4
Operating Segments
Segment Reporting Information [Line Items]
Operating Income (Loss)	2,278.4	2,065.2	1,987.6
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	23.0	58.0	27.7
Diagnostics [Member]
Segment Reporting Information [Line Items]
Labor	4,687.6	4,438.7	4,095.7
Supplies	2,357.0	2,209.6	2,066.0
Depreciation	258.8
Other operating expenses	1,793.2	1,630.7	1,426.0
Diagnostics [Member] \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	10,876.5	10,144.3	9,415.1
Depreciation		259.0	236.1
Operating Income (Loss)	1,779.9	1,606.3	1,591.3
Biopharma Laboratory Services
Segment Reporting Information [Line Items]
Labor	1,221.6	1,165.3	1,094.0
Supplies	478.5	441.9	452.2
Shipping costs	398.8	365.8	333.0
Depreciation	116.0
Other operating expenses	384.8	368.1	386.2
Biopharma Laboratory Services \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	3,098.2	2,922.6	2,774.2
Depreciation		122.6	112.5
Operating Income (Loss)	498.5	458.9	396.3
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	(482.2)	(670.8)	$ (644.1)
Other countries [Member]
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	124.0	113.8
North America
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	2,587.1	2,576.1
Europe [Member]
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	$ 370.4	$ 355.5

BUSINESS SEGMENT INFORMATION

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

BUSINESS SEGMENT INFORMATION

. BUSINESS SEGMENT INFORMATION

The following table is a summary of segment information for the year ended December 31, 2025, 2024, and 2023. The “management approach” has been used to present the following segment information. This approach is based upon the way the management of the Company organizes segments within an enterprise for making operating decisions and assessing performance. Financial information is reported on the basis that it is used internally by the CODM for evaluating segment performance and deciding how to allocate resources to segments. The Company’s chief executive officer has been identified as the CODM.

The Company’s CODM uses segment operating income to evaluate segment performance and to allocate resources. This segment performance measure excludes the amortization of intangibles and other assets, restructuring and other charges, goodwill and other asset impairments, and certain corporate charges for items such as transaction costs, and other special items. Other operating expenses are comprised primarily of rent, maintenance, sendout testing, utilities, travel and entertainment, and other segment expenses, including shipping costs for Dx. Segment asset information is not presented because it is not used by the CODM.


	Year Ended December 31, 2025
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	10,876.5	$	3,098.2	$	(23.0)	$	13,951.7

Operating Earnings:
Labor	4,687.6		1,221.6
Supplies	2,357.0		478.5
Shipping costs			398.8
Depreciation	258.8		116.0
Other operating expenses	1,793.2		384.8
Segment operating income	$	1,779.9	$	498.5			$	2,278.4
General corporate and unallocated expenses							(482.2)
Amortization of intangibles and other assets							(280.0)
Restructuring and other charges							(127.2)
Goodwill and other asset impairments							(4.3)
Total Operating income							1,384.7
Other (expense) income:
Interest expense							(224.1)
Investment income							15.2
Equity method loss, net							(13.3)
Other, net							(55.0)
Earnings from operations before income taxes							$	1,107.5


	Year Ended December 31, 2024
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	10,144.3	$	2,922.6	$	(58.0)	$	13,008.9

Operating Earnings:
Labor	4,438.7		1,165.3
Supplies	2,209.6		441.9
Shipping costs			365.8
Depreciation	259.0		122.6
Other operating expenses	1,630.7		368.1
Segment operating income	$	1,606.3	$	458.9			$	2,065.2
General corporate and unallocated expenses							(670.8)
Amortization of intangibles and other assets							(256.4)
Restructuring and other charges							(46.0)
Goodwill and other asset impairments							(5.3)
Total Operating income							1,086.7
Other (expense) income:
Interest expense							(208.3)
Investment income							22.3
Equity method loss, net							(1.4)
Other, net							60.2
Earnings from operations before income taxes							$	959.5


	Year Ended December 31, 2023
Revenues:	Dx		BLS		Intercompany eliminations and other		LHI
Revenues	$	9,415.1	$	2,774.2	$	(27.7)	$	12,161.6



Operating Earnings:
Labor	4,095.7		1,094.0
Supplies	2,066.0		452.2
Shipping costs			333.0
Depreciation	236.1		112.5
Other operating expenses	1,426.0		386.2
Segment operating income	$	1,591.3	396.3				$	1,987.6
General corporate and unallocated expenses							(644.1)
Amortization of intangibles and other assets							(219.8)
Restructuring and other charges							(49.1)
Goodwill and other asset impairments							(349.0)
Total Operating income							725.6
Other (expense) income:
Interest expense							(199.6)
Investment income							28.8
Equity method income, net							(1.4)
Other, net							15.5
Earnings from continuing operations before income taxes							$	568.9

Geographic distribution of Property, plant, and equipment, net:


	Year Ended December 31,
	2025		2024
North America	$	2,587.1	$	2,576.1
Europe	370.4		355.5
Other	124.0		113.8
Total Property, plant, and equipment, net	$	3,081.5	$	3,045.4

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-21

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
-Paragraph 21
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-21

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-32

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-15

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-42

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-32

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
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-Section 50
-Paragraph 1
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-32

Reference 11: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-32

Reference 12: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 13: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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-Name Accounting Standards Codification
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-Subparagraph (c)
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-URI https://asc.fasb.org/1943274/2147482785/280-10-55-47

Reference 14: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 15: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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Reference 21: http://www.xbrl.org/2003/role/disclosureRef
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Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-41

+ Details

INCOME TAXES (Details) - USD ($) $ in Millions	12 Months Ended
INCOME TAXES (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Valuation Allowance [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	$ 0.3	$ 22.8	$ 8.9
Federal	0.6	0.2	(7.8)
Unrecognized income tax benefits that would impact effective tax rate		$ 32.2	$ 29.9
Federal tax loss carryovers	$ 88.6
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	0.00%	0.10%	0.00%
Pre-tax income [Abstract]
Domestic	$ 728.9	$ 629.7	$ 504.0
Foreign	378.6	329.8	64.9
Current tax expense:
Federal	64.6	125.9	183.1
State	12.5	46.2	38.9
Foreign	55.1	60.4	44.6
Total current income taxes	132.2	232.5	266.6
Deferred Federal Income Tax Expense (Benefit)	83.1	(6.3)	(63.1)
Deferred tax expense (benefit):
Federal	0.6	0.2	(7.8)
State	15.9	(11.1)	(31.6)
Foreign	(1.4)	(2.7)	16.6
Deferred Income Tax Expense (Benefit)	97.6	(20.1)	(78.1)
Total income tax provision	229.8	$ 212.4	$ 188.5
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	660.7
Federal and State Attribute Carryforwards	$ 12.0
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	2.20%	2.40%	0.50%
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	0.00%	(0.10%)	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	0.00%	0.00%	3.20%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(0.60%)	(0.30%)	(0.10%)
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.30%	1.10%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.60%	0.30%	0.10%
Effective Income Tax Rate Reconciliation, Percent, Total	20.70%	22.10%	33.10%
Deferred tax assets:
Employee compensation and benefits	$ 69.0	$ 70.8
Operating lease liability	198.0	199.3
Credit carryforwards	45.2	0.4
Capitalized R&D costs	98.2	194.7
Tax loss carryforwards	226.4	224.0
Other	118.2	114.3
Total gross deferred tax assets	824.7	840.0
Less: valuation allowance	(128.1)	(127.2)	$ (150.2)	$ (151.3)
Deferred tax assets, net of valuation allowance	696.6	712.8
Deferred tax liabilities:
Right of use asset	(182.9)	(181.6)
Intangible assets	(663.3)	(626.7)
Property, plant, and equipment	(216.7)	(177.7)
Other	(64.5)	(71.7)
Total gross deferred tax liabilities	(1,127.4)	(1,057.7)
Net deferred tax liabilities	(430.8)	(344.9)
Foreign tax loss carryovers	112.4
Foreign Tax Loss Carryovers Expire Through 2041	444.9
Deferred Tax Assets, Capital Loss Carryforwards	30.5
Federal tax loss carryovers	88.6
Gross unrecognized income tax benefits	24.5	32.2	29.9	37.5
Accrued interest and penalties related to unrecognized income tax benefits	0.0	0.2
Income Tax Examination, Penalties Expense	0.0	0.1	0.0
Reversal of Accrued Income Tax Penalties And Interest	0.2	0.0	1.8
Reconciliation of unrecognized tax benefits [Roll Forward]
Gross unrecognized income tax benefits	24.5	32.2	29.9	$ 37.5
Increase in reserve for tax positions taken in the current year	2.2	2.2	1.8
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	5.5	3.8	10.4
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	(15.4)	(3.4)	(4.0)
Decrease in reserve as a result of settlements	0.0	(0.1)	(7.2)
Decrease in reserve as a result of lapses in the statute of limitations	0.0	(0.2)	(8.6)
Unrecognized income tax benefits that would impact effective tax rate		32.2	29.9
Total Earnings from continuing operations before income taxes	1,107.5	959.5	568.9
Deferred Tax Assets, Derivative Instruments	$ 69.7	36.5
Minimum Pillar Two Effective Tax Rates	15.00%
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 232.6	201.5	119.5
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 24.3	$ 23.4	$ 2.7
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	2.20%	2.40%	0.50%
Effective Income Tax Reconciliation, Deferred Tax Adjustments, Amount	$ 0.1	$ 3.2	$ 6.4
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.30%	1.10%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(0.60%)	(0.30%)	(0.10%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (6.5)	$ (2.4)	$ (0.4)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 0.0	$ 0.0	$ 0.0
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Percent	0.30%	0.50%	0.40%
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount	$ 3.0	$ 4.5	$ 2.1
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent	1.50%	1.90%	2.30%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ (16.2)	$ (18.0)	$ (13.2)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent	0.10%	0.10%	0.20%
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount	$ (1.1)	$ (0.7)	$ (1.3)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	0.00%	(0.10%)	0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 0.5	$ (1.4)	$ 0.0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	0.00%	0.00%	3.20%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	$ 0.0	$ 0.0	$ 18.1
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent	0.70%	0.70%	1.70%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount	$ 8.3	$ 6.9	$ 9.9
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Percent	0.00%	0.00%	(2.60%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Amount	$ 0.0	$ 0.0	$ (14.8)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent	0.50%	0.80%	1.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	$ 5.3	$ 7.5	$ 5.7
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent	(0.70%)	0.20%	(0.20%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount	$ (8.3)	$ 1.9	$ (1.0)
Effective tax rate	20.70%	22.10%	33.10%
Provision for income taxes	$ 229.8	$ 212.4	$ 188.5
Net Operating Loss Carryfowards Net Of Valuation Allowance	271.6
Post 2017
Valuation Allowance [Line Items]
Federal tax loss carryovers	148.7
Deferred tax liabilities:
Federal tax loss carryovers	$ 148.7
CANADA
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.10%	(0.30%)	0.60%
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.10%	1.70%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(0.10%)	0.30%	(0.60%)
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Reconciliation, Deferred Tax Adjustments, Amount	$ 0.4	$ 0.5	$ 9.9
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.10%	1.70%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.10%	(0.30%)	0.60%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 1.1	$ (2.5)	$ 3.3
GERMANY
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.10%	0.10%	1.00%
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.00%	(1.20%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(0.10%)	(0.10%)	(1.00%)
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Reconciliation, Deferred Tax Adjustments, Amount	$ (0.2)	$ (0.2)	$ (6.8)
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.00%	(1.20%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.10%	0.10%	1.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 1.1	$ 1.1	$ 5.8
UNITED KINGDOM
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	0.00%	0.00%	6.90%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	0.80%
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.00%	2.30%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	(0.80%)
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Reconciliation, Deferred Tax Adjustments, Amount	$ 0.3	$ 0.0	$ 12.9
Effective Income Tax Reconciliation, Remeasurement of deferred taxes	0.00%	0.00%	2.30%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	0.80%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (0.3)	$ (0.4)	$ 5.1
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	0.00%	0.00%	6.90%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	$ 0.0	$ 0.0	$ 39.1
SWITZERLAND
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(1.50%)	(1.70%)	(2.80%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.20%	0.40%	0.10%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(0.20%)	(0.40%)	(0.10%)
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.20%	0.40%	0.10%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 2.7	$ 3.8	$ 0.6
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	$ (16.9)	$ (16.0)	$ (16.1)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(1.50%)	(1.70%)	(2.80%)
Foreign Tax Jurisdiction, Other [Member]
Federal statutory tax rate reconciliation [Abstract]
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	0.20%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	(0.20%)
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.00%	0.00%	0.20%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (0.4)	$ (0.3)	$ 1.0

PENSION AND POSTRETIREMENT PLANS - FAIR VALUE OF PLAN ASSETS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Benefit Obligation	$ 2.9	$ 3.2	$ 3.6
Defined Benefit Plan, Plan Assets, Amount	323.9	303.7
Defined Benefit Plan, Benefit Obligation, Benefits Paid	0.6	0.4
Defined Benefit Plan, Interest Cost	0.2	0.2	0.2
Actuarial (gain) loss	0.1	(0.2)
Defined-benefit plan costs	0.1	0.0	(0.2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 323.9	$ 303.7
Discount rate for the Company Plan	5.40%	5.60%
Net amortization and deferral	$ 0.3	$ 0.2	0.0
Defined benefit plan costs	(0.1)	0.0	0.2
Unamortized net gain included in accumulated other comprehensive earnings	(0.5)	(0.8)
Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	80.6	49.9
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	80.6	49.9
Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Benefit Obligation	313.6	298.0	345.7
Service cost	1.5	1.5	1.4
Defined Benefit Plan, Plan Assets, Amount	323.9	303.7	335.9
Employer contributions	5.3	7.6
Defined Benefit Plan, Benefit Obligation, Benefits Paid	17.1	14.4
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	24.3	6.4
Defined Benefit Plan, Interest Cost	15.9	14.7	15.2
Actuarial (gain) loss	(9.0)	(43.1)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(17.8)	(16.0)	$ (16.7)
Actual return on plan assets	7.9	(20.9)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	$ 23.3	$ (5.2)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.50%	3.70%	4.00%
Defined-benefit plan costs	$ 0.2	$ (0.7)	$ 0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 323.9	$ 303.7	335.9
Discount rate for the Company Plan	5.30%	5.20%
Net amortization and deferral	$ 0.2	$ 0.5	0.1
Defined benefit plan costs	(0.2)	0.7	0.0
Unamortized net gain included in accumulated other comprehensive earnings	13.7	12.8
Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Benefit Obligation	174.2	213.4	231.9
Service cost	2.6	3.7	3.9
Defined Benefit Plan, Plan Assets, Amount	151.0	199.0	195.3
Employer contributions	0.0	10.2
Defined Benefit Plan, Benefit Obligation, Benefits Paid	9.9	22.7
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0.0	0.0
Defined Benefit Plan, Interest Cost	11.2	11.1	12.3
Actuarial (gain) loss	13.0	(10.6)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(11.0)	(11.0)	$ (11.6)
Actual return on plan assets	15.3	13.7
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	$ 0.0	$ 0.0
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	5.60%	5.10%	5.50%
Defined-benefit plan costs	$ (16.1)	$ (7.1)	$ (20.0)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 151.0	$ 199.0	195.3
Discount rate for the Company Plan	5.20%	5.60%
Net amortization and deferral	$ 2.2	$ 3.3	4.5
Defined benefit plan costs	16.1	7.1	20.0
Unamortized net gain included in accumulated other comprehensive earnings	26.0	30.7
Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	148.2	194.1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	148.2	194.1
International - developed [Member] \| Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8.9	10.6
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8.9	10.6
International - developed [Member] \| Domestic Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Equity Funds \| Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	20.4	25.9
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	20.4	25.9
Equity Funds \| Domestic Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 0.0	0.0
Real Estate Funds [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.90%
Real Estate Funds [Member] \| Non-US \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Real Estate Funds [Member] \| Non-US \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Real Estate Funds [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Real Estate Funds [Member] \| Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 2.8	3.8
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2.8	3.8
Real Estate Funds [Member] \| Domestic Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 0.0	0.0
Real Estate Funds [Member] \| Domestic Plan [Member] \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.50%
Real Estate Funds [Member] \| Domestic Plan [Member] \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	4.30%
Life and Annuity Insurance Product Line [Member] \| Non-US \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Life and Annuity Insurance Product Line [Member] \| Non-US \| Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	48.1	45.8	52.8
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held	2.3	(7.0)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 48.1	45.8	$ 52.8
Life and Annuity Insurance Product Line [Member] \| Non-US \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Life and Annuity Insurance Product Line [Member] \| Non-US \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	30.00%
Life and Annuity Insurance Product Line [Member] \| Domestic Plan [Member] \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Life and Annuity Insurance Product Line [Member] \| Domestic Plan [Member] \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Pooled Investment Funds [Member] \| Non-US \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 243.3	253.8
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	243.3	253.8
Pooled Investment Funds [Member] \| Non-US \| Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 0.0	0.0
Equity Securities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	9.80%
Equity Securities [Member] \| Non-US \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Equity Securities [Member] \| Non-US \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%
Equity Securities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	19.40%
Equity Securities [Member] \| Domestic Plan [Member] \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	13.00%
Equity Securities [Member] \| Domestic Plan [Member] \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	25.50%
Fixed Income Securities [Member] \| Domestic Plan [Member] \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	67.00%
Debt Securities [Member] \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	64.40%
Debt Securities [Member] \| Non-US \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	45.00%
Debt Securities [Member] \| Non-US \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	80.00%
Debt Securities [Member] \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	76.80%
Debt Securities [Member] \| Domestic Plan [Member] \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	87.00%
Other Investments \| Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	10.00%
Other Investments \| Non-US \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Other Investments \| Non-US \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%
Other Investments \| Domestic Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.90%
Other Investments \| Domestic Plan [Member] \| Minimum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Other Investments \| Domestic Plan [Member] \| Maximum [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
General Bond Index Funds [Member] \| Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 116.1	153.8
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	116.1	153.8
General Bond Index Funds [Member] \| Domestic Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Cash and Cash Equivalents [Member] \| Non-US \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Cash and Cash Equivalents [Member] \| Non-US \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	32.5	4.1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	32.5	4.1
Cash and Cash Equivalents [Member] \| Domestic Plan [Member] \| Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0.0	0.0
Cash and Cash Equivalents [Member] \| Domestic Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2.8	4.9
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 2.8	$ 4.9

LEASES - Maturity of Leases (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Operating Lease, Liability [Abstract]
2026	$ 224.1
2027	171.8
2028	126.7
2029	92.8
2030	79.1
Thereafter	350.9
Total lease payments	1,045.4
Less imputed interest	(171.7)
Less current portion	(191.1)	$ (184.6)
Operating lease liabilities	682.6	676.3
Finance Lease Liability [Abstract]
2026	7.9
2027	7.4
2028	6.8
2029	6.5
2030	6.4
Thereafter	61.4
Total lease payments	96.4
Less imputed interest	(28.8)
Less current portion	(4.6)	(6.1)
Financing lease liabilities	$ 63.0	$ 74.3

FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2025

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements were as follows:


				Fair Value Measurements
				December 31, 2025
	Consolidated Balance Sheets Classification	Fair Value at December 31, 2025		Using Fair Value Hierarchy
				Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	16.9	$	—	$	16.9	$	—
Cross currency swaps	Other liabilities	$	274.0	$	—	$	274.0	$	—
Interest rate swaps	Other liabilities	$	52.7	$	—	$	52.7	$	—
Cash surrender value of life insurance policies	Other assets, net	$	99.6	$	—	$	99.6	$	—
Deferred compensation asset	Other assets, net	$	53.1	$	—	$	53.1	$	—
Deferred compensation liability	Other liabilities	$	150.5	$	—	$	150.5	$	—

Contingent consideration	Accrued expenses and other/Other liabilities	$	50.0	$	—	$	—	$	50.0


				Fair Value Measurements
				December 31, 2024
	Consolidated Balance Sheets Classification	Fair Value at December 31, 2024		Using Fair Value Hierarchy
				Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	14.3	$	—	$	14.3	$	—
Cross currency swaps	Other liabilities	$	142.7	$	—	$	142.7	$	—
Interest rate swaps	Other liabilities	$	76.8	$	—	$	76.8	$	—
Cash surrender value of life insurance policies	Other assets, net	$	102.1	$	—	$	102.1	$	—
Deferred compensation asset	Other assets, net	$	35.7	$	—	$	35.7	$	—
Deferred compensation liability	Other liabilities	$	132.5	$	—	$	132.5	$	—
Contingent consideration	Accrued expenses and other/Other liabilities	$	10.8	$	—	$	—	$	10.8


Fair Value Measurement of Level 3 Liabilities	Contingent Consideration
Balance at December 31, 2023	$	66.1

Cash payments and adjustments	(55.3)
Balance at December 31, 2024	10.8
Cash payments and adjustments	(4.6)
Additions from business acquisitions	43.8
Balance at December 31, 2025	$	50.0

The Company has a noncontrolling interest put option related to its Ontario subsidiary that has been classified as mezzanine equity in the Company’s Consolidated Balance Sheets. The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

The fair values of derivative financial instruments have been determined based on market value equivalents at the balance sheet date, taking into account the current interest rate environment and therefore were classified as Level 2 measurements in the fair value hierarchy.

The Company offers certain employees the opportunity to participate in an employee funded DCP. A participant’s deferrals are allocated by the participant to one or more of multiple measurement funds, which are indexed to externally managed funds. From time to time, to offset the cost of the growth in the participant’s investment accounts, the Company purchases life insurance policies, with the Company named as beneficiary of the policies. Changes in the cash surrender value of the life insurance policies are based upon earnings and changes in the value of the underlying investments, which are typically invested in a similar manner to the participant’s allocations. Changes in the fair value of the DCP obligation are derived using quoted prices in active markets based on the market price per unit multiplied by the number of units. The cash surrender value and the DCP obligations are classified within Level 2 because their inputs are derived principally from observable market data by correlation to the hypothetical investments.

The Company measured the fair value of contingent consideration liabilities as Level 3 instruments. These contingent consideration liabilities were recorded at fair value on the acquisition date and are remeasured quarterly based on the then

assessed fair value and adjusted if necessary. The increases or decreases in the fair value of contingent consideration payable can result from changes in anticipated revenue levels and changes in assumed discount periods and rates. As the fair value measure is based on significant inputs that are not observable in the market, they are categorized as Level 3.

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. Although recorded at amortized cost on the Company’s Consolidated Balance Sheets, the fair market value of the Company’s senior notes was $4,963.6 and $5,762.6 at December 31, 2025, and 2024, respectively. The Company’s senior notes are considered Level 2 instruments, as the fair market values of these instruments are based on observable market pricing.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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+ Details

CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Net earnings	$ 877.7	$ 747.1	$ 419.2
Foreign currency translation adjustments	231.7	(217.1)	183.1
Net benefit plan adjustments	3.2	20.7	14.6
Other comprehensive earnings (loss) before tax	234.9	(196.4)	197.7
Provision for income tax related to items of comprehensive earnings	(0.9)	(5.9)	(1.8)
Other comprehensive earnings (loss), net of tax	234.0	(202.3)	195.9
Comprehensive earnings	1,111.7	544.8	615.1
Less: Net earnings attributable to the noncontrolling interest	(1.2)	(1.1)	(1.2)
Comprehensive earnings attributable to Labcorp Holdings Inc.	$ 1,110.5	$ 543.7	$ 613.9

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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Amount before tax, after reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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+ Details

REVENUES (Details) - USD ($) $ in Millions	12 Months Ended
REVENUES (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	100.00%	100.00%	100.00%
Revenues	$ 13,951.7	$ 13,008.9	$ 12,161.6
Percent of Domestic Revenue	83.50%	83.50%	83.70%
Sales Commission Amortization Period Minimum	1 year
Sales Commission Amortization Period Maximum	5 years
Geographic Distribution, Domestic [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 11,650.1	$ 10,858.3	$ 10,177.7
Europe [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	9.00%	9.00%	9.00%
North America
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	87.00%	87.00%	87.00%
Other countries [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	4.00%	4.00%
Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	78.00%	78.00%	77.00%
Diagnostics [Member] \| Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	37.00%	36.00%	36.00%
Diagnostics [Member] \| Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	8.00%	8.00%	8.00%
Diagnostics [Member] \| Patients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	10.00%	10.00%	9.00%
Diagnostics [Member] \| Clients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	23.00%	24.00%	24.00%
Diagnostics [Member] \| Europe [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Europe [Member] \| Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Europe [Member] \| Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Europe [Member] \| Patients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Europe [Member] \| Clients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| North America
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	78.00%	78.00%	77.00%
Diagnostics [Member] \| North America \| Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	37.00%	36.00%	36.00%
Diagnostics [Member] \| North America \| Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	8.00%	8.00%	8.00%
Diagnostics [Member] \| North America \| Patients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	10.00%	10.00%	9.00%
Diagnostics [Member] \| North America \| Clients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	23.00%	24.00%	24.00%
Diagnostics [Member] \| Other countries [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Other countries [Member] \| Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Other countries [Member] \| Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Other countries [Member] \| Patients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Diagnostics [Member] \| Other countries [Member] \| Clients
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%
Biopharma Laboratory Services
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	22.00%	22.00%	23.00%
Biopharma Laboratory Services \| Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	22.00%	22.00%	23.00%
Biopharma Laboratory Services \| Europe [Member] \| Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	9.00%	9.00%	9.00%
Biopharma Laboratory Services \| North America \| Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	9.00%	9.00%	10.00%
Biopharma Laboratory Services \| Other countries [Member] \| Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	4.00%	4.00%

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Basis of Financial Statement Presentation

Labcorp® Holdings Inc. is a global leader of innovative and comprehensive laboratory services that provides vital information to help doctors, hospitals, pharmaceutical companies, researchers, and patients make clear and confident decisions. By leveraging its unparalleled diagnostics and drug development capabilities, the Company provides insights and accelerates innovations to improve health and improve lives.

The Company reports its business in two segments, Diagnostics Laboratories and Biopharma Laboratory Services. In 2025 and 2024, Dx and BLS contributed approximately 78% and 22%, respectively, of Revenues to the Company.

These Consolidated Financial Statements include the accounts of the Company and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. All significant intercompany transactions and accounts have been eliminated. The Company does not have any significant variable interest entities or special purpose entities whose financial results are not included in these Consolidated Financial Statements.

The financial statements of the Company’s operating foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the year. Resulting translation adjustments are included in Accumulated other comprehensive loss within the Consolidated Balance Sheets.

On June 30, 2023, the Company completed the separation of Fortrea, formerly the Company’s CDCS business, into a separate, publicly traded company. All current and historical operating results of Fortrea are presented as Earnings from discontinued operations, net of tax, in the Consolidated Statements of Operations. In addition, as a result of the Spin-off, the Company recast segment results to exclude the historical results of the CDCS business for all periods presented.

These Consolidated Financial Statements are presented in accordance with the rules and regulations of the SEC and GAAP. The preparation of financial statements in conformity with GAAP, requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported periods. Significant estimates include implicit price concessions, revenue estimates, the allowance for credit losses, deferred tax assets, fair values of acquired assets and assumed liabilities in business combinations, fair value of goodwill and indefinite-lived intangible assets, amortization lives for acquired intangible assets, and accruals for self-insurance reserves, litigation reserves and pensions. Actual results could materially differ from those estimates.

Reimbursable Out-of-Pocket Expenses

BLS pays on behalf of its customers certain out-of-pocket costs for which the Company is reimbursed at cost, without mark-up or profit. Out-of-pocket costs paid by BLS are reflected in Cost of revenues in the Consolidated Statements of Operations, while the reimbursements received are reflected in Revenues in the Consolidated Statements of Operations.

Cost of Revenues

Cost of revenue includes direct labor and related benefit charges, reimbursable expenses, other direct costs, shipping and handling fees, and an allocation of facility charges and information technology costs.

Selling, General and Administrative Expenses

Selling, General, and Administrative Expenses

Selling, general, and administrative expenses consist primarily of administrative payroll and related benefit charges, including stock compensation, administrative travel, and an allocation of facility charges and information technology costs.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable.

The Company maintains Cash and cash equivalents with various major financial institutions. The Company believes all financial institutions holding its cash are of high credit quality and does not believe the Company is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The total Cash and cash equivalent

balances that exceeded the balances insured by the Federal Deposit Insurance Commission, were approximately $529.9 and $1,516.0 at December 31, 2025, and 2024, respectively.

Substantially all of the Company’s accounts receivable are with companies in the healthcare or pharmaceutical industry and individuals. However, concentrations of credit risk are mitigated due to the number of the Company’s customers as well as their dispersion across many different geographic regions.

Although Dx has receivables due from U.S. and state governmental agencies, the Company does not believe that such receivables represent a credit risk since the related healthcare programs are funded by U.S. and state governments, and payment is primarily dependent upon submitting appropriate documentation. Accounts receivable balances (gross) from Medicare and Medicaid were $126.1 and $97.4 at December 31, 2025, and 2024, respectively.

For the Company’s operations in Ontario, Canada, the Ontario Ministry of Health and Long-Term Care (Ministry) determines who can establish a licensed community medical laboratory and caps the amount that each of these licensed laboratories can bill the government sponsored healthcare plan. The Ontario government-sponsored healthcare plan covers the cost of commercial laboratory testing performed by the licensed laboratories. The provincial government discounts the annual testing volumes based on certain utilization discounts and establishes an annual maximum it will pay for all community laboratory tests. The agreed-upon reimbursement rates are subject to Ministry review at the end of year and can be adjusted (at the government’s discretion) based upon the actual volume and mix of test work performed by the licensed healthcare providers in the province during the year. The capitated accounts receivable balance from the Ontario government sponsored healthcare plan was CAD 5.8 and 6.4 at December 31, 2025, and 2024, respectively.

The portion of the Company’s accounts receivable due from patients comprises the largest portion of credit risk. At December 31, 2025, and 2024, receivables due from patients represented approximately 22.6% and 24.5% of the Company’s consolidated gross accounts receivable, respectively. The Company applies assumptions and judgments including historical experience and reasonable and supportable forecasts for assessing collectability from patients.

Earnings Per Share

Earnings per Share

Basic earnings per share (Basic EPS) is computed by dividing Net earnings attributable to Labcorp Holdings Inc. by the weighted-average number of common shares outstanding. Diluted earnings per share (Diluted EPS) is computed by dividing Net earnings attributable to Labcorp Holdings Inc., and if applicable, including the impact of dilutive adjustments by the weighted-average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, and performance share awards.

The following represents a reconciliation of Basic EPS to Diluted EPS:


	Year Ended December 31,
	2025					2024					2023
	Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS

Net earnings attributable to LHI	$	876.5		$	876.5	$	746.0		$	746.0	$	418.0		$	418.0
Weighted-average common shares outstanding	83.2		0.6	83.8		83.9		0.5	84.4		87.1		0.5	87.6
Per share amount	$	10.54		$	10.46	$	8.89		$	8.84	$	4.80		$	4.77

The following table summarizes the potential common shares not included in the computation of Diluted EPS because their impact would have been antidilutive:


	Year Ended December 31,
	2025	2024	2023
Employee stock options and awards	0.1	0.2	0.2

Stock Compensation Plans

The Company measures stock compensation cost for all equity awards at fair value on the date of grant and recognizes compensation expense over the service period for awards expected to vest. The fair value of restricted stock units is determined based on the number of shares granted and the quoted price of the Company’s Common Stock on the grant date. To estimate the fair value of stock option awards, the Black-Scholes model is used, which relies on various key assumptions, including risk-free interest rate, expected term, and expected volatility. The grant date fair value of performance awards is based on a Monte Carlo simulated fair value for the relative (as compared to the peer companies) total shareholder return component of the performance awards. Such value is recognized as an expense over the service period and the Company’s determination of whether it is probable that the performance targets will be achieved. At the end of each reporting period, the Company reassesses the probability of achieving performance targets. Forfeitures are recognized as a reduction of expense in earnings in the period in which they occur.

Cash Equivalents

Cash equivalents consist of highly liquid instruments, such as commercial paper, time deposits, and/or other money market instruments, which have maturities when purchased of three months or less.

Supplies Inventory

Supplies inventory, consisting primarily of purchased laboratory and customer supplies and finished goods, are stated at the lower of cost (first-in, first-out) or net realizable value. Supplies accounted for $386.2 and $384.2 and finished goods accounted for $148.5 and $109.0 of total Supplies inventory at December 31, 2025, and 2024, respectively. The Company’s inventory reserve balance was $26.7 and $43.8, at December 31, 2025, and 2024, respectively.

Property, Plant and Equipment, Net

Property, Plant, and Equipment, Net

Property, plant, and equipment are recorded at cost. Depreciation and amortization expense is computed on all classes of assets based on their estimated useful lives using the straight-line method.

Expenditures for repairs and maintenance are charged to operations as incurred. Retirements, sales, and other disposals of assets are recorded by removing the cost and accumulated depreciation from the related accounts with any resulting gain or loss reflected in the Consolidated Statements of Operations.

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. If the carrying value is no longer recoverable based upon the undiscounted future cash flows of the asset, the amount of the impairment is the difference between the carrying amount and the fair value of the asset.

Capitalized Software Costs

The Company capitalizes purchased software that is ready for service and capitalizes software development costs incurred on significant projects starting from the time that the preliminary project stage is completed, and the Company commits to funding a project until the project is substantially complete and the software is ready for its intended use. Capitalized software costs are included in Property, plant, and equipment, net within the Consolidated Balance Sheets and are mainly comprised of direct material and service costs and payroll and payroll-related costs. Computer software maintenance costs related to software development are expensed as incurred. Capitalized software costs are amortized using the straight-line method over the estimated useful life of the underlying system ranging from three to fifteen years, generally five years. Amortization begins once the underlying system is substantially complete and ready for its intended use.

Goodwill and Indefinite-lived Intangible Assets

The Company assesses goodwill and indefinite-lived intangible assets for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The annual impairment test for goodwill includes an option to perform a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying value. Reporting units are businesses with discrete financial information that is available and reviewed by management. If the Company determines that it is more likely than not that the fair value of a reporting unit is less than its carrying value, then the Company performs the quantitative goodwill impairment test. The Company may also choose to bypass the qualitative assessment for any reporting unit in its goodwill assessment and proceed directly to performing the quantitative assessment. The Company recognizes an impairment charge for the amount by which the reporting unit’s carrying amount exceeds its fair value.

In the qualitative assessment, the Company considers relevant events and circumstances for each reporting unit, including (i) current year results, (ii) financial performance versus management’s annual and five-year strategic plans, (iii) changes in the reporting unit carrying value since prior year, (iv) industry and market conditions in which the reporting unit operates, (v) macroeconomic conditions, including discount rate changes, and (vi) changes in offerings provided by the reporting unit. If applicable, performance in recent years is compared to forecasts included in prior quantitative valuations. Based on the results of the qualitative assessment, if the Company concludes that it is not more likely than not that the fair value of the reporting unit is less than its carrying values of the reporting unit, then no quantitative assessment is performed.

The quantitative assessment includes the estimation of the fair value of each reporting unit as compared to the carrying value of the reporting unit. The Company estimates the fair value of a reporting unit using both income-based and market-based valuation methods. The income-based approach is based on the reporting unit’s forecasted future cash flows that are discounted to the present value using the reporting unit’s weighted-average cost of capital. For the market-based approach, the Company utilizes a number of factors such as publicly available information regarding the market capitalization of the Company, as well as operating results, business plans, market multiples, and present value techniques. Based upon the range of estimated values developed from the income and market-based methods, the Company determines the estimated fair value for the reporting unit. If the estimated fair value of the reporting unit exceeds the carrying value, the goodwill is not impaired, and no further review is required.

Management performed its annual goodwill and indefinite-lived intangible asset impairment testing as of the beginning of the fourth quarter of 2025. The Company elected to perform a qualitative assessment for goodwill and indefinite-lived intangible assets for each of its reporting units. Based upon the results of the qualitative assessments, the Company concluded that the fair values of each of its reporting units, as of October 1, 2025, were greater than the carrying values.

Although the Company believes that the current assumptions and estimates used in its goodwill analysis are reasonable, supportable, and appropriate, the Company’s business could be impacted by unfavorable changes, including those that impact the existing assumptions used in the impairment analysis. Various factors could reasonably be expected to unfavorably impact existing assumptions, primarily a worsening economic environment and protracted economic downturn and related impacts, including delays in revenue from new customers, increases in customer termination activity, or increases in operating costs. Accordingly, there can be no assurance that the estimates and assumptions made for the purposes of the goodwill impairment analysis will prove to be accurate predictions of future performance.

The Company will continue to monitor the financial performance of, and assumptions for, its reporting units. A significant increase in the discount rate, decrease in the revenue and terminal growth rates, decreased operating margin, or substantial reductions in end markets and volume assumptions, could have a negative impact on the estimated fair value of the reporting units. A future impairment charge for goodwill or intangible assets could have a material effect on the Company’s consolidated financial position and results of operations.

Intangible Assets, Net

Intangible assets with finite lives are amortized on a straight-line basis over the expected periods to be benefited such as legal life for patents and technology, contractual lives for non-compete agreements and customer relationships.

Intangible assets with finite lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. If the carrying value is no longer recoverable based upon the undiscounted future cash flows of the asset, the amount of the impairment is the difference between the carrying amount and the fair value of the asset.

Investment

Investments

The Company has investments in other companies or investment funds that develop technology relating to the Company’s operations. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20% and no representation on the investee’s board of directors) are accounted for at fair value or at cost minus impairment adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer for those investments that do not have readily determinable fair values. The carrying value of these type of investments was $201.9 and $199.7 at December 31, 2025, and 2024, respectively, and are included within Other assets, net in the Company’s Consolidated Balance Sheet.

Debt Issuance Costs

The costs related to the issuance of debt are capitalized, netted against the related debt for presentation purposes and amortized to interest expense over the terms of the related debt.

Professional Liability

The Company is self-insured (up to certain limits) for professional liability claims arising in the normal course of business, generally related to laboratory testing and reporting of test results. The Company estimates a liability that represents the ultimate exposure for aggregate losses below those limits. The liability is based on assumptions and factors for known and incurred but not reported claims, including the frequency and payment trends of historical claims.

Leases

All leases with a lease term greater than 12 months are recorded as an obligation in the Company’s Consolidated Balance Sheets with a corresponding ROU asset, while short-term leases with an initial term of 12 months or less are not recorded in the Company’s Consolidated Balance Sheets. Both finance and operating leases are reflected as liabilities on the commencement date of the lease based on the present value of the lease payments to be made over the lease term. ROU assets are valued at the initial measurement of the lease liability, plus any initial direct costs or rent prepayments, minus lease incentives and any deferred lease payments. The classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease.

A certain number of these leases contain rent escalation clauses either fixed or adjusted periodically for inflation or market rates that are factored into the Company’s determination of lease payments. The Company also has variable lease payments that do not depend on a rate or index, for items such as volume purchase commitments, which are recorded as variable cost when incurred. As most of the Company’s leases do not provide an implicit rate, the Company estimates an incremental borrowing rate based on the credit quality of the Company and by comparing interest rates available in the market for similar borrowings, and adjusting this amount based on the impact of collateral over the term of each lease. The Company uses this rate to discount payments to present value. Some operating leases contain renewal options, some of which also include options to early terminate the leases. The exercise of these options is at the Company’s discretion, and the Company evaluates each renewal option to determine if it is reasonably possible to be exercised and should be included in the accounting lease term.

Income Taxes

The Company accounts for income taxes utilizing the asset and liability method. Under this method deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and for tax loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company does not recognize a tax benefit unless the Company concludes that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that the Company believes is greater than 50% likely to be realized. The Company records interest and penalties in Provision for income taxes in the Consolidated Statements of Operations.

Derivative Financial Instruments

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates and currency exchange rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments. The Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company’s financial position or results of operations.

Interest rate swap agreements, which have been used by the Company from time to time in the management of interest rate exposure, are accounted for at fair value. These derivative financial instruments are accounted for as fair value hedges that increase or decrease the value of the Company’s senior notes with the offset being recorded as a component of other long-term assets or liabilities, as applicable. As the specific terms and notional amounts of the derivative financial instruments match those of the fixed-rate debt being hedged, the derivative instruments are assumed to be perfectly effective hedges and accordingly, there is no impact to the Company’s Consolidated Statements of Operations. Cash flows from the interest rate swaps are including in operating activities within the Consolidated Statements of Cash Flows.

Cross currency swap agreements, which have been used by the Company to hedge the foreign currency exposure of its net investment in a Swiss subsidiary, are accounted for at fair value. Changes in the fair value of the cross-currency swaps are charged or credited through Accumulated other comprehensive loss in the Consolidated Balance Sheet until the hedged item is

recognized in earnings. The cumulative amount of the fair value hedging adjustments are recognized as Foreign currency translation adjustments within the Consolidated Statements of Comprehensive Earnings.

Foreign currency forward contracts, which have been used by the Company to hedge foreign currency receivables, are recognized as assets or liabilities at their fair value. These contracts do not qualify for hedge accounting and the changes in fair value are recorded directly to earnings. The contracts are short-term in nature and the fair value of these contracts is based on market prices for comparable contracts.

Fair Value of Financial Instruments

Fair value measurements for financial assets and liabilities are determined based on the assumptions that a market participant would use in pricing an asset or liability. A three-tiered fair value hierarchy draws distinctions between market participant assumptions based on (i) observable inputs such as quoted prices in active markets (Level 1), (ii) inputs other than quoted prices in active markets that are observable either directly or indirectly (Level 2), and (iii) unobservable inputs that require the Company to use present value and other valuation techniques in the determination of fair value (Level 3).

Foreign Currencies

For subsidiaries outside of the U.S. that operate in a local currency environment, income and expense items are translated to USD at the monthly average rates of exchange prevailing during the period, assets and liabilities are translated at period-end exchange rates and equity accounts are translated at historical exchange rates. Translation adjustments are accumulated in a separate component of Shareholders’ equity in the Consolidated Balance Sheets and are included in the determination of comprehensive earnings in the Consolidated Statements of Comprehensive Earnings and Consolidated Statements of Changes in Shareholders’ Equity. Transaction gains and losses are included in the determination of Net earnings in the Consolidated Statements of Operations.

New Accounting Pronouncements, Policy

Recent Accounting Pronouncements Not Yet Adopted

In July 2025, the FASB issued Accounting Standards Update (ASU) 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets. This accounting pronouncement provides all entities with a practical expedient to assume that current conditions as of the balance sheet date do not change for the remaining life of the assets when measuring credit losses. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025. The Company anticipates that adopting this accounting pronouncement will not have a material impact on its Consolidated Financial Statements.

In September 2025, the FASB issued ASU 2025-06, Intangibles — Goodwill and Other — Internal-Use-Software (Topic 350): Targeted Improvements to the Accounting for Internal-Use Software. This accounting pronouncement improves the operability of the existing guidance by removing all references to software development project stages so that the guidance is neutral to different software development methods. ASU 2025-06 is effective for fiscal years beginning after December 15, 2027. The Company is currently assessing the impact that adopting this accounting pronouncement will have on its Consolidated Financial Statements.

In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. This accounting pronouncement is intended to improve the navigability of guidance in ASC 270, Interim Reporting, and clarify when it applies. ASU 2025-11 is effective for fiscal years beginning after December 15, 2027. The Company is currently assessing the impact that adopting this accounting pronouncement will have on its future interim reporting.

In December 2025, the FASB issued ASU 2025-12, Codification Improvements. This accounting pronouncement addresses suggestions received from stakeholders regarding the Accounting Standards Codification and makes other incremental improvements to GAAP that clarify, correct errors in, or make other improvements to a variety of topics that are intended to make it easier to understand and apply. ASU 2025-12 is effective for fiscal years beginning after December 15, 2026. The Company is currently assessing the impact that adopting this accounting pronouncement will have on its Consolidated Financial Statements.

Enactment of the One Big Beautiful Bill

Enactment of the One Big Beautiful Bill Act

On July 4, 2025, the U.S. government enacted the OBBBA, which includes significant changes to federal tax law, including modifications to bonus depreciation, R&D expensing, and international tax regimes. The tax provisions of the OBBBA will enable the Company to accelerate the realization of $194.7 of deferred tax assets relating to R&D costs over the next two years, but will have no material net impact within the Consolidated Statement of Operations.

RESTRUCTURING AND OTHER CHARGES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Restructuring Reserve, Current	$ 7.8
Restructuring Reserve, Noncurrent	$ 12.0
Number of years restructuring liabilities expected to be paid out over	2 years 6 months
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	$ 4.3	$ 5.3	$ 349.0
Restructuring Reserve	19.8	21.3	20.6
Restructure charge gross	59.0	48.9
Restructuring Reserve, Accrual Adjustment	(33.1)	(2.9)	(6.6)
Payments for Restructuring	(27.4)	(45.3)
Restructuring and other charges	127.2	46.0	49.1
Severance and other personnel costs	27.2	43.0	33.4
Facility-related costs	17.9	5.9	22.3
Contract termination costs	13.9	0.0	0.0
Long-lived asset impairment and other non-cash charges	101.3	0.0	0.0
Early Development
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	105.5
Early Development \| Property, Plant and Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	61.4
Early Development \| Finite-Lived Intangible Assets [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	16.0
Early Development \| Other Assets
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	8.2
Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.0	8.4	7.6
Restructure charge gross	27.2	43.0
Restructuring Reserve, Accrual Adjustment	(2.5)	(2.5)
Payments for Restructuring	(32.1)	(39.7)
Facility-related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	4.9	12.9	13.0
Restructure charge gross	17.9	5.9
Restructuring Reserve, Accrual Adjustment	(30.6)	(0.4)
Payments for Restructuring	(4.7)	(5.6)
Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	13.9	0.0	$ 0.0
Restructure charge gross	13.9	0.0
Restructuring Reserve, Accrual Adjustment	0.0	0.0
Payments for Restructuring	$ 0.0	$ 0.0

Cover - USD ($) shares in Millions, $ in Billions	12 Months Ended
Cover - USD ($) shares in Millions, $ in Billions	Dec. 31, 2025	Feb. 23, 2026	Jun. 30, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Document Transition Report	false
Entity File Number	1-11353
Entity Registrant Name	LABCORP HOLDINGS INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	99-2588107
Entity Address, Address Line One	358 South Main Street
Entity Address, City or Town	Burlington
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27215
City Area Code	336
Local Phone Number	229-1127
Title of 12(b) Security	Common Stock, $0.10 par value
Trading Symbol	LH
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 21.7
Entity Common Stock, Shares Outstanding		82.4
Documents Incorporated by Reference	Portions of the Registrant’s Notice of Annual Meeting and Proxy Statement to be filed no later than 120 days following December 31, 2025, are incorporated by reference into Part III.
Entity Central Index Key	0000920148
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Financial Statement Presentation

Reimbursable Out-of-Pocket Expenses

Cost of Revenues

Selling, General, and Administrative Expenses

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable.

balances that exceeded the balances insured by the Federal Deposit Insurance Commission, were approximately $529.9 and $1,516.0 at December 31, 2025, and 2024, respectively.

Earnings per Share

The following represents a reconciliation of Basic EPS to Diluted EPS:


	Year Ended December 31,
	2025					2024					2023
	Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS		Basic EPS		Dilutive Effect	Diluted EPS

Net earnings attributable to LHI	$	876.5		$	876.5	$	746.0		$	746.0	$	418.0		$	418.0
Weighted-average common shares outstanding	83.2		0.6	83.8		83.9		0.5	84.4		87.1		0.5	87.6
Per share amount	$	10.54		$	10.46	$	8.89		$	8.84	$	4.80		$	4.77

The following table summarizes the potential common shares not included in the computation of Diluted EPS because their impact would have been antidilutive:


	Year Ended December 31,
	2025	2024	2023
Employee stock options and awards	0.1	0.2	0.2

Stock Compensation Plans

Cash Equivalents

Cash equivalents consist of highly liquid instruments, such as commercial paper, time deposits, and/or other money market instruments, which have maturities when purchased of three months or less.

Supplies Inventory

Property, Plant, and Equipment, Net

Property, plant, and equipment are recorded at cost. Depreciation and amortization expense is computed on all classes of assets based on their estimated useful lives using the straight-line method.

Capitalized Software Costs

Goodwill and Indefinite-lived Intangible Assets

Intangible Assets, Net

Investments

Debt Issuance Costs

The costs related to the issuance of debt are capitalized, netted against the related debt for presentation purposes and amortized to interest expense over the terms of the related debt.

Professional Liability

Leases

Income Taxes

Derivative Financial Instruments

Fair Value of Financial Instruments

Foreign Currencies

Recent Accounting Pronouncements Not Yet Adopted

Enactment of the One Big Beautiful Bill Act

COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Commitments The Company has a noncancelable contract with a vendor to purchase inventory supplies pursuant to which the Company is obligated to make expected total future minimum payments of $129.2, including $34.7 in 2026, $20.5 in 2027, and $74.0 in 2028. Legal Contingencies The Company is involved from time to time in various claims and legal actions, including arbitrations, class actions, and other litigation (including those described in more detail below), arising in the ordinary course of business. Some of these actions involve claims that are substantial in amount. These matters include, but are not limited to, intellectual property disputes, commercial and contract disputes, professional liability claims, employee-related matters, transaction-related disputes, securities and corporate law matters, and inquiries, including subpoenas and other civil investigative demands, from governmental agencies, Medicare or Medicaid payers, and MCOs reviewing billing practices or requesting comment on allegations of billing irregularities that are brought to their attention through billing audits or third parties. The Company receives civil investigative demands or other inquiries from various governmental bodies in the ordinary course of its business. Such inquiries can relate to the Company or other parties, including physicians and other health care providers. The Company works cooperatively to respond to appropriate requests for information. The Company also is named from time to time in suits brought under the qui tam provisions of the False Claims Act and comparable state laws. These suits typically allege that the Company has made false statements and/or certifications in connection with claims for payment from U.S. federal or state healthcare programs. The suits may remain under seal (hence, unknown to the Company) for some time while the government decides whether to intervene on behalf of the qui tam plaintiff. Such claims are an inevitable part of doing business in the healthcare field today. The Company believes that it is in compliance in all material respects with all statutes, regulations, and other requirements applicable to its commercial laboratory operations and drug development support services. The healthcare diagnostics and drug development industries are, however, subject to extensive regulation, and the courts have not interpreted many of the applicable statutes and regulations. Therefore, the applicable statutes and regulations could be interpreted or applied by a prosecutorial, regulatory, or judicial authority in a manner that would adversely affect the Company. Potential sanctions for violation of these statutes and regulations include significant civil and criminal penalties, fines, the loss of various licenses, certificates and authorizations, additional liabilities from third-party claims, and/or exclusion from participation in government programs. Many of the current claims and legal actions against the Company are in preliminary stages, and many of these cases seek an indeterminate amount of damages. The Company records an aggregate legal reserve, which is determined using calculations based on historical loss rates and assessment of trends experienced in settlements and defense costs. In accordance with FASB Accounting Standards Codification Topic 450 “Contingencies,” the Company establishes reserves for judicial, regulatory, and arbitration matters outside the aggregate legal reserve if and when those matters present loss contingencies that are both probable and reasonably estimable and would exceed the aggregate legal reserve. If the reasonable estimate of a known or probable loss is a range, and no amount within the range is a better estimate than any other, the minimum amount of the range is accrued. If a loss is reasonably possible but not known or probable, and may be reasonably estimated, the estimated loss or range of loss is disclosed. When loss contingencies are not both probable and reasonably estimable, the Company does not establish separate reserves. The Company is unable to estimate a range of reasonably possible loss for the proceedings described in more detail below in which damages either have not been specified or, in the Company’s judgment, are unsupported and/or exaggerated and (i) the proceedings are in early stages, (ii) there is uncertainty as to the outcome of pending appeals or motions, (iii) there are significant factual issues to be resolved, and/or (iv) there are novel legal issues to be presented. For these proceedings, however, the Company does not believe, based on currently available information, that the adverse outcomes are probable and reasonably estimable, and it does not believe they will have a material adverse effect on the Company’s financial statements. The Company has received various subpoenas and other civil investigative demands related to Medicaid billing. In October 2013, the Company received a Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company cooperated with this request. On October 5, 2018, the Company received a second Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company cooperated with this request. On January 26, 2021, the Company was notified that a qui tam Petition was pending under seal in the District Court, 250th Judicial District, Travis County, Texas, and that the State of Texas had intervened. On April 14, 2021, the Petition was unsealed. The Petition alleges that the Company submitted claims for reimbursement to Texas Medicaid that were higher than permitted under Texas Medicaid’s alleged “best price” regulations, and that the Company offered remuneration to Texas healthcare providers in the form of discounted pricing for certain laboratory testing services in exchange for the providers’ referral of Texas Medicaid business to the Company. The Petition seeks actual and double damages and civil penalties, as well as recovery of costs, attorney’s fees, and legal expenses. On August 1, 2022, the District Court entered an order granting the Company’s Motion for Partial Summary Judgment with respect to the claim that the Company submitted claims for reimbursement to Texas Medicaid that were higher than permitted under Texas Medicaid’s alleged “best price” regulations. Plaintiffs filed a Notice of Non-Suit and Motion for Entry of Final Judgment and, on November 11, 2022, the court entered a Judgment. Plaintiffs filed a Notice of Appeal with respect to the court’s order granting the Company’s Motion for Partial Summary Judgment, referenced above. On December 31, 2024, the Texas Court of Appeals issued a decision reversing the District Court’s order granting the Company’s Motion for Partial Summary Judgment. On February 28, 2025, the Company filed in the Texas Supreme Court a Petition for Review with respect to the Texas Court of Appeals decision. On January 16, 2026, the Texas Supreme Court granted the Petition for Review. The Company will vigorously defend the lawsuit. On May 14, 2019, Retrieval-Masters Creditors Bureau, Inc. d/b/a AMCA, an external collection agency, notified the Company about a security incident AMCA experienced that may have involved certain personal information about some of the Company’s patients (the AMCA Incident). The Company referred patient balances to AMCA only when direct collection efforts were unsuccessful. The Company’s systems were not impacted by the AMCA Incident. Upon learning of the AMCA Incident, the Company promptly stopped sending new collection requests to AMCA and stopped AMCA from continuing to work on any pending collection requests from the Company. AMCA informed the Company that it appeared that an unauthorized user had access to AMCA’s system between August 1, 2018, and March 30, 2019, and that AMCA could not rule out the possibility that personal information on AMCA’s system was at risk during that time period. Information on AMCA’s affected system from the Company may have included name, address, and balance information for the patient and person responsible for payment, along with the patient’s phone number, date of birth, referring physician, and date of service. The Company was later informed by AMCA that health insurance information may have been included for some individuals, and because some insurance carriers utilize the Social Security Number as a subscriber identification number, the Social Security Number for some individuals may also have been affected. No ordered tests, laboratory test results, or diagnostic information from the Company were in the AMCA affected system. The Company notified individuals for whom it had a valid mailing address. For the individuals whose Social Security Number was affected, the notice included an offer to enroll in credit monitoring and identity protection services that was provided free of charge for 24 months. Twenty-three putative class action lawsuits were filed against the Company related to the AMCA Incident in various U.S. District Courts. Numerous similar lawsuits have been filed against other healthcare providers who used AMCA. These lawsuits were consolidated into a multidistrict litigation in the District of New Jersey. On November 15, 2019, the Plaintiffs filed a Consolidated Class Action Complaint in the U.S. District Court of New Jersey. The consolidated Complaint generally alleged that the Company did not adequately protect its patients’ data and failed to timely notify those patients of the AMCA Incident. The Complaint asserted various causes of action, including but not limited to negligence, breach of implied contract, unjust enrichment, and the violation of state data protection statutes. The Complaint sought damages on behalf of a class of all affected Company customers. On January 22, 2020, the Company filed Motions to Dismiss all claims. On December 16, 2021, the court granted in part and denied in part the Company’s Motion to Dismiss. On March 31, 2022, the Plaintiffs filed an Amended Complaint alleging claims for negligence, negligence per se, breach of confidence, invasion of privacy, and various state statutory claims, including a claim under the California Confidentiality of Medical Information Act. The Company filed a Motion to Dismiss certain claims of the Amended Complaint. On May 5, 2023, the court granted in part and denied in part the Company’s Motion to Dismiss. On November 1, 2024, Plaintiffs served their motion for class certification. On November 25, 2025, the parties reached a term sheet and are in the process of drafting a formal settlement agreement, which will be subject to court approval. The Company was served with a shareholder derivative lawsuit, Raymond Eugenio, Derivatively on Behalf of Nominal Defendant, Laboratory Corporation of America Holdings v. Lance Berberian, et al., filed in the Court of Chancery of the State of Delaware on April 23, 2020. The complaint asserts derivative claims on the Company’s behalf against the Company’s board of directors and certain executive officers. The complaint generally alleges that the defendants failed to ensure that the Company utilized proper cybersecurity safeguards and failed to implement a sufficient response to data security incidents, including the AMCA Incident. The complaint asserts derivative claims for breach of fiduciary duty and seeks relief including damages, certain disclosures, and certain changes to the Company’s internal governance practices. On June 2, 2020, the Company filed a Motion to Stay the lawsuit due to its overlap with the multi-district litigation referenced above. On July 2, 2020, the Company filed a Motion to Dismiss. On July 14, 2020, the court entered an order staying the lawsuit pending the resolution of the multi-district litigation. The Company will vigorously defend the lawsuit. Certain governmental entities have requested information from the Company related to the AMCA Incident. The Company received a request for information from the OCR of the Department of Health and Human Services. On April 28, 2020, OCR notified the Company of the closure of its inquiry. The Company has also received requests from a multi-state group of state Attorneys General and is cooperating with these requests for information. On January 31, 2020, the Company was served with a putative class action lawsuit, Luke Davis and Julian Vargas, et al. v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Central District of California. The lawsuit alleges that visually impaired patients are unable to use the Company’s touchscreen kiosks at Company PSCs in violation of the Americans with Disabilities Act and similar California statutes. The lawsuit seeks statutory damages, injunctive relief, and attorney’s fees and costs. On March 20, 2020, the Company filed a Motion to Dismiss Plaintiffs’ Complaint and to Strike Class Allegations. In August 2020, the Plaintiffs filed an Amended Complaint. On April 26, 2021, the Plaintiffs and the Company each filed Motions for Summary Judgment and the Plaintiffs filed a Motion for Class Certification. On May 23, 2022, the court entered an order granting Plaintiffs’ Motion for Class Certification. On June 6, 2022, the Company filed a Petition for Permission to Appeal the Order Granting Class Certification with the U.S. Court of Appeals for the Ninth Circuit. On September 22, 2022, the Ninth Circuit granted the Company’s Petition for Permission to Appeal the Order Granting Class Certification. On February 8, 2024, the Ninth Circuit affirmed the trial court’s decision to certify both a California damages class and a nationwide injunctive class. On March 25, 2024, the Company filed a Petition for Rehearing En Banc with the Ninth Circuit. On April 18, 2024, the Ninth Circuit denied the Petition for Rehearing En Banc. On September 13, 2024, the Company filed a Petition for Writ of Certiorari with the U.S. Supreme Court, which was granted on January 24, 2025, and then dismissed on June 5, 2025. The Company will vigorously defend the lawsuit. On October 16, 2020, Ravgen Inc. filed a patent infringement lawsuit, Ravgen Inc. v. Laboratory Corporation of America Holdings, in the U.S. District Court for the Western District of Texas, alleging infringement of two Ravgen-owned U.S. patents. The lawsuit sought monetary damages, enhancement of those damages for willfulness, and recovery of attorney’s fees and costs. On September 28, 2022, a jury rendered a verdict in favor of the Plaintiff on the sole asserted patent finding that the Company willfully infringed Ravgen’s patent, and awarded damages of $272.0. Plaintiff filed post-trial motions seeking enhanced damages of up to $817.0 based on the finding of willfulness, as well as attorney’s fees and costs. On May 12, 2023, the court issued an order granting Plaintiff’s motion in part and awarding enhanced damages of $100.0. On January 23, 2025, the court issued an order awarding Plaintiff post-verdict supplemental damages of $2.6, an ongoing royalty of one hundred dollars and 00/100 cents per test through the life of the patent at issue, pre- and post-judgment interest, and other relief. In January and February 2025, the trial court entered orders denying the Company’s post-trial motions and the Company has filed an appeal. On March 18, 2025, the Company filed an appeal bond with the Court to stay enforcement of the judgment pending appeal. The Company strongly disagrees with the verdict, based on a number of legal factors, and will vigorously defend the lawsuit through the appeal process. On June 7, 2023, the Company was served with a putative class action lawsuit, Connie Howard, Yadira Yazmin Hernandez, and Deborah Reynolds, et al. v. Laboratory Corporation of America, Laboratory Corporation of America Holdings, and Meta Platforms, Inc., filed in the U.S. District Court for the Northern District of California, alleging that the Company’s website includes a tracking code created by Meta, known as the Meta Pixel, that sent information related to Plaintiffs and their online activities to Meta. Plaintiffs assert claims against the Company under California and Pennsylvania law and seek to represent classes of all persons in California, or in Pennsylvania, who allegedly entered search terms into the Company’s website and who used Facebook during a time that Plaintiffs allege the Meta Pixel was active on the Company’s website. Plaintiffs seek an injunction, damages, attorneys’ fees, and costs. On August 23, 2023, the Company filed a Motion to Dismiss. On September 5, 2023, the lawsuit was transferred to the U.S. District Court for the Middle District of North Carolina. On September 9, 2023, Plaintiffs filed an Amended Complaint. Among other things, the Amended Complaint contains allegations that in addition to the Meta Pixel, the Company’s website uses Google Analytics and other online tracking technologies. On October 11, 2023, the Company filed a Motion to Dismiss the Amended Complaint. On January 16, 2026, the parties reached a settlement in principle, which is subject to the execution of a settlement agreement and court approval. If approved, the settlement will resolve the lawsuit. On June 27, 2022, the Company was served with a Subpoena Duces Tecum issued by the DOJ in Boston, Massachusetts requiring the production of documents related to urine drug testing. The Company is cooperating with the DOJ. There are various other pending legal proceedings involving the Company including, but not limited to, additional employment-related lawsuits, professional liability lawsuits, and commercial lawsuits. While it is not feasible to predict the outcome of such proceedings, in the opinion of the Company, the likelihood of loss is remote and any reasonably possible loss associated with the resolution of such proceedings is not expected to be material to the Company’s financial condition, results of operations, or cash flows, either individually or in the aggregate. Under the Company’s present insurance programs, coverage is obtained for catastrophic exposure as well as those risks required to be insured by law or contract. The Company is responsible for the uninsured portion of losses related primarily to general, professional and vehicle liability, certain medical costs and workers’ compensation. The self-insured retentions are on a per-occurrence basis without any aggregate annual limit. Provisions for losses expected under these programs are recorded based upon the Company’s estimates of the aggregated liability of claims incurred.