BUSINESS SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended						Six Month Ended
	June 30,						June 30,
	2015			2014			2015			2014
Total revenues:
LCD - net revenue	$	1,575.0		$	1,473.7		$	3,047.0		$	2,866.6
CDD - net revenue	643.7			42.7			944.0			80.5
CDD - reimbursable out-of-pocket expenses	50.4			—			71.3			—
Total revenues	2,269.1			1,516.4			4,062.3			2,947.1
Operating earnings (loss):
LCD	314.8			277.0			537.6			509.3
CDD	52.5			5.2			(1.0		)	9.7
Unallocated corporate expenses	(46.0		)	(35.5		)	(84.2		)	(69.0		)
Total operating income	321.3			246.7			452.4			450.0
Other income (expense), net	(57.0		)	(14.2		)	(156.9		)	(29.8		)
Earnings before income taxes	264.3			232.5			295.5			420.2
Provision for income taxes	95.6			90.8			125.2			165.0
Net earnings	168.7			141.7			170.3			255.2
Less income attributable to noncontrolling interests	(0.3		)	(0.4		)	(0.6		)	(0.8		)
Net income attributable to Laboratory Corporation of America Holdings	$	168.4		$	141.3		$	169.7		$	254.4