Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Detail)

v2.4.0.6
Earnings Per Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Earnings Per Share [Abstract]    
Net income available to common stockholders $ 2,045 $ 2,738
Weighted average common shares outstanding—basic 4,948 4,999
Dilutive effect of employee equity incentive plans (shares) 78 126
Dilutive effect of convertible debt (shares) 54 67
Weighted average common shares outstanding—diluted 5,080 5,192
Basic earnings per common share (in dollars per share) $ 0.41 $ 0.55
Diluted earnings per common share (in dollars per share) $ 0.40 $ 0.53
Stock Options [Member]
   
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (shares) 62 19