CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue, Net	$ 2,295.2	$ 1,772.3
Reimbursement Revenue	72.8	20.9
Revenues	2,368.0	1,793.2
Cost of sales	1,517.9	1,147.2
Cost of Reimbursable Expense	72.8	20.9
Cost of Revenue	1,590.7	1,168.1
Gross profit	777.3	625.1
Selling, general and administrative expenses	411.9	442.3
Amortization of intangibles and other assets	44.3	31.1
Net restructuring and other special charges	19.2	19.3
Operating Income (Loss)	301.9	132.4
Other income (expenses):
Interest expense	(54.5)	(104.3)
Equity method income, net	1.4	2.7
Investment income	0.5	0.6
Other, net	6.7	1.1
Earnings before income taxes	256.0	32.5
Provision for income taxes	95.5	29.1
Net earnings	160.5	3.4
Less: Net earnings attributable to the noncontrolling interest	(0.3)	(0.3)
Net earnings attributable to Laboratory Corporation of America Holdings	$ 160.2	$ 3.1
Basic earnings per common share (in dollars per share)	$ 1.58	$ 0.04
Diluted earnings per common share (in dollars per share)	$ 1.55	$ 0.04
Covance [Member]
Revenues	$ 2,146.4
Operating Income (Loss)	272.4
Other income (expenses):
Net earnings attributable to Laboratory Corporation of America Holdings	$ 125.1