CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Provision for income taxes	$ 62.1	$ 49.8	$ 131.2	$ 113.7
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	205.6	155.2	433.9	363.6
Foreign currency translation adjustments	(7.2)	51.7	(131.5)	99.8
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	0.7	1.1	(1.7)	2.3
Other comprehensive earnings (loss) before tax	(6.5)	52.8	(133.2)	102.1
Tax effect of adjustments	(0.1)	(0.3)	0.5	(0.6)
Other comprehensive earnings (loss), net of tax	(6.6)	52.5	(132.7)	101.5
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0.0	33.9	0.0	38.8
Net earnings	205.6	189.1	433.9	402.4
Net Income (Loss) Attributable to Noncontrolling Interest	0.3	0.2	0.6	0.6
Net Income (Loss) Attributable to Parent	205.3	188.9	433.3	401.8
Net earnings	205.6	189.1	433.9	402.4
Comprehensive earnings	199.0	241.6	301.2	503.9
Less: Net earnings attributable to the noncontrolling interest	(0.3)	(0.2)	(0.6)	(0.6)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 198.7	$ 241.4	$ 300.6	$ 503.3