Quarterly report pursuant to Section 13 or 15(d)

Employee Equity Incentive Plans (Detail)

v3.2.0.727
Employee Equity Incentive Plans (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
May. 31, 2015
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Dec. 27, 2014
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]            
Share-based Compensation   $ 332 $ 303 $ 700 $ 586  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value       $ 150    
Restricted Stock Units (RSUs) [Member]            
Share-based Compensation Arrangements By Share-based Payment Award, Restricted Stock Units [Roll Forward]            
Number of RSUs outstanding, beginning balance       119.4    
Number of RSUs granted       40.5    
Number of RSUs vested       (42.3)    
Number of RSUs forfeited       (3.9)    
Number of RSUs outstanding, ending balance   113.7   113.7    
Share-based Compensation Arrangements By Share-based Payment Award, Restricted Stock Units, Weighted Average Exercise Price [Roll Forward]            
Weighted-average grant date fair value of RSU balance (in dollars per share)   $ 26.87   $ 26.87   $ 23.89
Weighted-average grant date fair value of granted RSUs (in dollars per share)   $ 30.33 $ 24.81 31.76 $ 24.91  
Weighted-average grant date fair value of vested RSUs (in dollars per share)       23.32    
Weighted-average grant date fair value of forfeited RSUs (in dollars per share)       $ 24.89    
Restricted Stock Units, Stock Options, And Stock Purchase Plan Estimated Values And Weighted Average Assumptions [Abstract]            
Risk-free interest rate   0.60% 0.50% 0.60% 0.50%  
Dividend yield   2.90% 3.40% 2.90% 3.40%  
Volatility (percent)     22.00% 27.00% 23.00%  
Stock Option Awards [Member]            
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       0.0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]            
Number of options outstanding, beginning balance       77.3    
Number of options exercised       (11.5)    
Number of options cancelled and forfeited       (0.6)    
Number of options expired       (0.2)    
Number of options outstanding, ending balance   65.0   65.0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]            
Weighted-average exercise price of stock options (in dollars per share)   $ 21.37   $ 21.37   $ 21.30
Weighted-average exercise price for stock options exercised (in dollars per share)       20.79    
Weighted-average exercise price for stock options cancelled and forfeited (in dollars per share)       23.44    
Weighted-average exercise price for stock options expired (in dollars per share)       $ 21.72    
Number of options exercisable   53.7   53.7   54.7
Weighted-average exercise price for options exercisable (in dollars per share)   $ 20.81   $ 20.81   $ 20.29
Market Based Restricted Stock Units [Member]            
Share-based Compensation Arrangements By Share-based Payment Award, Restricted Stock Units [Roll Forward]            
Number of RSUs granted   0.0        
Number of RSUs outstanding, ending balance   4.8   4.8    
2006 Equity Incentive Plan [Member]            
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 34.0          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   256.0   256.0    
2006 Stock Purchase Plan [Member]            
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   189.0   189.0    
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent       85.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period       8.1 10.7  
Employee Purchases, Amount       $ 234 $ 212  
Restricted Stock or Stock Units, 2006 Plan [Member] | Restricted Stock Units (RSUs) [Member]            
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value       1,400    
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Intrinsic Value Amount       $ 986