EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2015

Earnings Per Share, Basic and Diluted [Abstract]

EARNINGS (LOSS) PER SHARE

EARNINGS PER SHARE

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Amounts attributable to Quest Diagnostics’ stockholders:
Net income attributable to Quest Diagnostics	$	118	$	133	$	179	$	237
Less: Earnings allocated to participating securities	1		—		1		1
Earnings available to Quest Diagnostics’ common stockholders – basic and diluted	$	117	$	133	$	178	$	236
Weighted average common shares outstanding – basic	144		144		144		144
Effect of dilutive securities:
Stock options and performance share units	1		1		1		1
Weighted average common shares outstanding – diluted	145		145		145		145
Earnings per share attributable to Quest Diagnostics’ common stockholders:
Basic	$	0.82	$	0.92	$	1.24	$	1.64
Diluted	$	0.81	$	0.92	$	1.23	$	1.63

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

	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
Stock options and performance share units	2	3	2	4