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 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Earnings Per Share [Abstract]        
Net income available to common stockholders $ 2,796 $ 2,000 $ 4,726 $ 4,045
Weighted average common shares outstanding—basic 4,981 4,978 4,977 4,963
Dilutive effect of employee equity incentive plans (shares) 68 67 72 72
Dilutive effect of convertible debt (shares) 74 61 71 58
Weighted average common shares outstanding—diluted 5,123 5,106 5,120 5,093
Basic earnings per common share (in dollars per share) $ 0.56 $ 0.40 $ 0.95 $ 0.82
Diluted earnings per common share (in dollars per share) $ 0.55 $ 0.39 $ 0.92 $ 0.79
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (shares) 9 51 21 56