CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Provision for income taxes	$ 64.5	$ 148.0
Net earnings	213.3	492.1
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	48.1	(74.6)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	1.2	2.2
Other comprehensive earnings (loss) before tax	49.3	(72.4)
Tax effect of adjustments	(0.3)	(0.6)
Other comprehensive earnings (loss), net of tax	49.0	(73.0)
Comprehensive earnings	262.3	419.1
Less: Net earnings attributable to the noncontrolling interest	(0.4)	(0.5)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 261.9	$ 418.6