Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Detail)

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Earnings Per Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Earnings Per Share [Abstract]    
Net income available to common stockholders $ 1,930 $ 2,045
Weighted average common shares outstanding—basic 4,974 4,948
Dilutive effect of employee equity incentive plans (shares) 76 78
Dilutive effect of convertible debt (shares) 67 54
Weighted average common shares outstanding—diluted 5,117 5,080
Basic earnings per common share (in dollars per share) $ 0.39 $ 0.41
Diluted earnings per common share (in dollars per share) $ 0.38 $ 0.40
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (shares) 33 62