Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Schedule of basic and diluted net income per share

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
	(In millions, except per share amounts)
Numerator:
Net income	$	689	$	597	$	2,006	$	1,859
Denominator:
Weighted average shares of common stock - basic	1,295		1,292		1,296		1,291
Dilutive effect of equity incentive plans	15		22		18		20
Weighted average shares of common stock - diluted	1,310		1,314		1,314		1,311
Net income per share:
Basic	$	0.53	$	0.46	$	1.55	$	1.44
Diluted	$	0.53	$	0.45	$	1.53	$	1.42
Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	2		3		2		6