EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2014

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 March 31,
	2014		2013
Amounts attributable to Quest Diagnostics’ stockholders:
Income from continuing operations	$	104	$	116
Income from discontinued operations, net of taxes	—		20
Net income attributable to Quest Diagnostics’ common stockholders	$	104	$	136
Income from continuing operations	$	104	$	116
Less: Earnings allocated to participating securities	1		1
Earnings available to Quest Diagnostics’ common stockholders – basic and diluted	$	103	$	115
Weighted average common shares outstanding – basic	144		158
Effect of dilutive securities:
Stock options and performance share units	1		1
Weighted average common shares outstanding – diluted	145		159
Earnings per share attributable to Quest Diagnostics’ common stockholders – basic:
Income from continuing operations	$	0.72	$	0.73
Income from discontinued operations	—		0.13
Net income	$	0.72	$	0.86
Earnings per share attributable to Quest Diagnostics’ common stockholders – diluted:
Income from continuing operations	$	0.71	$	0.72
Income from discontinued operations	—		0.13
Net income	$	0.71	$	0.85

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 March 31,
	2014	2013
Stock options and performance share units	6	2