Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of basic and diluted net income per share

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014			2013
	(In millions, except per share amounts)
Numerator:
Net income (loss)	$	673	$	689	$	(977	)	$	2,006
Denominator:
Weighted average shares of common stock - basic	1,242		1,295		1,258			1,296
Dilutive effect of equity incentive awards	9		15		—			18
Weighted average shares of common stock - diluted	1,251		1,310		1,258			1,314
Net income (loss) per share:
Basic	$	0.54	$	0.53	$	(0.78	)	$	1.55
Diluted	$	0.54	$	0.53	$	(0.78	)	$	1.53
Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	8		2		54			2