BUSINESS SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Summary of Segment Reporting Information by Segment

The following table is a summary of segment information for the three and six months ended June 30, 2021 and 2020. Segment asset information is not presented since it is not used by the CODM at the operating segment level. Operating earnings (loss) of each segment represents net revenues less directly identifiable expenses to arrive at operating income (loss) for the segment. General corporate activities included in the table below are comprised of general management and administrative corporate expenses, amortization and impairment of intangible assets and other operating income and expenses, net of certain general corporate activity costs that are allocated to the DIS and DS businesses. The accounting policies of the segments are the same as those of the Company as set forth in Note 2 to the audited consolidated financial statements contained in the Company’s 2020 Annual Report on Form 10-K and Note 2 to the interim unaudited consolidated financial statements.

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net revenues:
DIS business	$	2,474	$	1,764	$	5,117	$	3,508
All other operating segments	76		63		153		141
Total net revenues	$	2,550	$	1,827	$	5,270	$	3,649
Operating earnings (loss):
DIS business	$	601	$	280	$	1,313	$	485
All other operating segments	9		4		18		13
General corporate activities	(77)		(1)		(138)		(40)
Total operating income	533		283		1,193		458
Non-operating income (expense), net	284		(28)		250		(85)
Income before income taxes and equity in earnings of equity method investees	817		255		1,443		373
Income tax expense	(177)		(66)		(330)		(92)
Equity in earnings of equity method investees, net of taxes	10		4		27		18
Net income	650		193		1,140		299
Less: Net income attributable to noncontrolling interests	19		8		40		15
Net income attributable to Quest Diagnostics	$	631	$	185	$	1,100	$	284

Schedule of Revenues by Major Service

Net revenues by major service were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Routine clinical testing services	$	1,150	$	812	$	2,182	$	1,757
COVID-19 testing services	511		582		1,339		606
Gene-based and esoteric (including advanced diagnostics) testing services	673		294		1,326		935
Anatomic pathology testing services	140		76		270		210
All other	76		63		153		141
Total net revenues	$	2,550	$	1,827	$	5,270	$	3,649