CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net earnings	$ 1,280.6	$ 2,379.5	$ 1,557.0
Foreign currency translation adjustments	(336.4)	(104.6)	264.1
Net benefit plan adjustments	44.8	91.7	(65.7)
Other comprehensive earnings (loss) before tax	(291.6)	(12.9)	198.4
(Provision) benefit for income tax related to items of comprehensive earnings	(9.7)	(17.1)	12.1
Other comprehensive earnings (loss), net of tax	(301.3)	(30.0)	210.5
Comprehensive earnings	979.3	2,349.5	1,767.5
Less: Net earnings attributable to the noncontrolling interest	(1.5)	(2.2)	(0.9)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 977.8	$ 2,347.3	$ 1,766.6