CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net restructuring and other special charges	$ 14.3	$ 3.9
Provision for income taxes	69.0	82.0
Net earnings	172.5	183.3
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	39.4	58.6
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	2.9	0.6
Other comprehensive earnings (loss) before tax	42.3	59.2
Tax effect of adjustments	10.2	(5.9)
Other comprehensive earnings (loss), net of tax	52.5	53.3
Comprehensive earnings	225.0	236.6
Less: Net earnings attributable to the noncontrolling interest	0.7	(0.3)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 225.7	$ 236.3