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EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The computation of basic and diluted earnings per common share was as follows (in millions, except per share data):

			Three Months Ended September 30,																		Nine Months Ended September 30,
			2020						2019						2020						2019
Amounts attributable to Quest Diagnostics’ common stockholders:
Income from continuing operations			$	568					$	215					$	852					$	585
Income from discontinued operations, net of taxes			—						—						—						20
Net income attributable to Quest Diagnostics’ common stockholders			$	568					$	215					$	852					$	605
Income from continuing operations			$	568					$	215					$	852					$	585
Less: Earnings allocated to participating securities			2						1						3						2
Earnings available to Quest Diagnostics’ common stockholders – basic and diluted			$	566					$	214					$	849					$	583
Weighted average common shares outstanding – basic			135						135						134						135
Effect of dilutive securities:
Stock options and performance share units			2						2						2						1
Weighted average common shares outstanding – diluted			137						137						136						136
Earnings per share attributable to Quest Diagnostics’ common stockholders - basic:
Income from continuing operations			$	4.20					$	1.59					$	6.33					$	4.33
Income from discontinued operations			—						—						—						0.15
Net income			$	4.20					$	1.59					$	6.33					$	4.48
Earnings per share attributable to Quest Diagnostics’ common stockholders – diluted:
Income from continuing operations			$	4.14					$	1.56					$	6.25					$	4.27
Income from discontinued operations			—						—						—						0.15
Net income			$	4.14					$	1.56					$	6.25					$	4.42

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following securities were not included in the calculation of diluted earnings per share due to their antidilutive effect:

			Three Months Ended September 30,																		Nine Months Ended September 30,
			2020						2019						2020						2019
Stock options			1						2						1						3

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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