BUSINESS SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reconciliation of Operating Income to Consolidated [Abstract]

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

	Three Months Ended
	March 31,
	2020			2019
Revenues:
LCD	$	1,702.0		$	1,722.0
CDD	1,143.8			1,074.7
Intercompany eliminations and other	(22.0		)	(5.5		)
Revenues	2,823.8			2,791.2
Operating earnings (loss):
LCD	188.4			268.3
CDD	(338.7		)	88.0
General corporate expenses	(42.3		)	(38.1		)
Total operating income (loss)	(192.6		)	318.2
Non-operating expenses, net	(75.1		)	(63.5		)
Earnings (loss) before income taxes	(267.7		)	254.7
Provision for income taxes	49.2			68.8
Net earnings (loss)	(316.9		)	185.9
Less net income attributable to noncontrolling interests	(0.3		)	(0.3		)
Net income (loss) attributable to Laboratory Corporation of America Holdings	$	(317.2	)	$	185.6