BUSINESS SEGMENT INFORMATION (Tables)

3 Months Ended

Jun. 30, 2020

Segment Reconciliation of Operating Income to Consolidated [Abstract]

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Revenues:
LCD	$	1,692.7	$	1,760.9	$	3,394.7	$	3,482.9
CDD	1,093.7		1,126.3		2,237.5		2,201.0
Intercompany eliminations and other	(17.6)		(5.5)		(39.6)		(11.0)
Revenues	2,768.8		2,881.7		5,592.6		5,672.9
Operating earnings (loss):
LCD	281.3		312.5		486.7		580.8
CDD	65.5		65.8		(273.2)		153.8
General corporate expenses	(49.1)		(42.6)		(108.4)		(80.7)
Total operating income	297.7		335.7		105.1		653.9
Non-operating expenses, net	(0.7)		(65.7)		(75.8)		(129.2)
Earnings before income taxes	297.0		270.0		29.3		524.7
Provision for income taxes	65.4		79.3		114.6		148.1
Net earnings (loss)	231.6		190.7		(85.3)		376.6
Less net income attributable to noncontrolling interests	—		(0.3)		(0.3)		(0.6)
Net income (loss) attributable to Laboratory Corporation of America Holdings	$	231.6	$	190.4	$	(85.6)	$	376.0