CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue, Net	$ 2,408.1	$ 2,295.2
Net restructuring and other special charges	3.9	19.2
Provision for income taxes	87.2	89.2
Net earnings	192.5	164.4
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	59.3	54.5
Net benefit plan adjustments	(0.5)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	0.6	3.4
Other comprehensive earnings (loss) before tax	59.9	57.9
Tax effect of adjustments	(5.9)	(29.2)
Other comprehensive earnings (loss), net of tax	54.0	28.7
Comprehensive earnings	246.5	193.1
Less: Net earnings attributable to the noncontrolling interest	(0.3)	(0.3)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 246.2	$ 192.8