0000920148 2021-07-02 2021-07-02 2021-07-02 0000920148 false 8-K 2021-07-02 LABORATORY CORPORATION OF AMERICA HOLDINGS DE 1-11353 13-3757370 358 South Main Street Burlington, NC 27215 336 229-1127 false false false false Common Stock , $0.10 par value LH NYSE false 2021-07-02