Net Income (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of basic and diluted net income per share

	Three Months Ended March 31,
	2014			2013
	(In millions, except per share amounts)
Numerator:
Net income (loss)	$	(2,326	)	$	677
Denominator:
Weighted average shares of common stock - basic	1,276			1,295
Dilutive effect of equity incentive awards	—			24
Weighted average shares of common stock - diluted	1,276			1,319
Net income (loss) per share:
Basic	$	(1.82	)	$	0.52
Diluted	$	(1.82	)	$	0.51
Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	51			1