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 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Earnings Per Share [Abstract]        
Net income available to common stockholders $ 2,950 $ 2,972 $ 6,995 $ 8,537
Weighted average common shares outstanding—basic 4,981 4,996 4,969 5,006
Dilutive effect of employee equity incentive plans (shares) 60 93 68 109
Dilutive effect of convertible debt (shares) 59 64 58 66
Weighted average common shares outstanding—diluted 5,100 5,153 5,095 5,181
Basic earnings per common share (in dollars per share) $ 0.59 $ 0.59 $ 1.41 $ 1.71
Diluted earnings per common share (in dollars per share) $ 0.58 $ 0.58 $ 1.37 $ 1.65
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (shares) 56 24 56 18