CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net restructuring and other special charges	$ 6.4	$ 13.6	$ 31.8	$ 34.2
Provision for income taxes	65.4	79.3	114.6	148.1
Net earnings	231.6	190.7	(85.3)	376.6
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	66.9	25.6	(80.5)	47.2
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	2.7	2.8	5.4	5.5
Other comprehensive earnings (loss) before tax	69.6	28.4	(75.1)	52.7
Tax effect of adjustments	(0.7)	(0.8)	(1.5)	(1.5)
Other comprehensive earnings (loss), net of tax	68.9	27.6	(76.6)	51.2
Comprehensive earnings	300.5	218.3	(161.9)	427.8
Less: Net earnings attributable to the noncontrolling interest	0.0	(0.3)	(0.3)	(0.6)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 300.5	$ 218.0	$ (162.2)	$ 427.2