QUARTERLY DATA (UNAUDITED)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

QUARTERLY DATA (UNAUDITED)

QUARTERLY DATA (UNAUDITED)

The following is a summary of unaudited quarterly data:

	Year Ended December 31, 2019
	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter		Full Year
Revenues	$	2,791.2	$	2,881.7	$	2,928.5	$	2,953.4	$	11,554.8
Gross profit	789.7		824.8		817.3		820.7		3,252.5
Operating income	318.2		335.7		339.9		336.4		1,330.2
Net earnings attributable to Laboratory Corporation of America Holdings	185.6		190.4		220.7		227.1		823.8
Basic earnings per common share	1.88		1.94		2.26		2.34		8.42
Diluted earnings per common share	1.86		1.93		2.25		2.32		8.35

	Year Ended December 31, 2018
	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter		Full Year
Revenues	$	2,848.3	$	2,866.3	$	2,831.3	$	2,787.5	$	11,333.4
Gross profit	779.0		835.1		789.9		772.4		3,176.4
Operating income	305.4		369.2		343.4		307.7		1,325.7
Net earnings attributable to Laboratory Corporation of America Holdings	173.2		233.8		318.8		157.9		883.7
Basic earnings per common share	1.70		2.29		3.14		1.58		8.71
Diluted earnings per common share	1.67		2.27		3.10		1.56		8.61