Quarterly report pursuant to Section 13 or 15(d)

Employee Equity Incentive Plans (Detail)

v2.4.0.6
Employee Equity Incentive Plans (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Apr. 02, 2011
Dec. 31, 2011
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]      
Share-based Compensation $ 274 $ 300  
Stock Option Activity [Abstract]      
Number of options outstanding, beginning balance 298.3    
Number of options granted 3.8    
Number of options exercised (50.1)    
Number of options cancelled and forfeited (1.4)    
Number of options expired (0.9)    
Number of options outstanding, ending balance 249.7    
Weighted-average exercise price of stock options (in dollars per share) $ 20.02   $ 20.12
Weighted-average exercise price for stock option grants during the year (in dollars per share) $ 26.79    
Weighted-average exercise price for stock option exercises during the year (in dollars per share) $ 20.90    
Weighted-average exercise price for stock option cancellations and forfeitures during the year (in dollars per share) $ 21.34    
Weighted-average exercise price for stock option expirations during the year (in dollars per share) $ 30.01    
Options exercisable 155.5   203.6
Weighted-average exercise price for options exercisable (in dollars per share) $ 20.21   $ 20.44
Restricted Stock or Stock Units, 2006 Plan [Member]
     
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 394    
2006 Equity Incentive Plan [Member]
     
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 596    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 300    
Stock Purchase Plan [Member]
     
Employee Equity Incentive Plans, (Textual) (Details) [Abstract]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 373    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 244    
Share-based Compensation Arrangement by Share-based Payment Award, Percent of Market Price 85.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 10.3 10.3  
Employee Purchases, Amount $ 197 $ 181  
Restricted Stock Units (RSUs) [Member]
     
Restricted Stock Unit Activity [Abstract]      
Number of RSUs outstanding, beginning balance 107.0    
Number of RSUs granted 4.6    
Number of RSUs vested (2.7)    
Number of RSUs forfeited (1.3)    
Number of RSUs outstanding, ending balance 107.6    
Weighted-average grant date fair value of RSU balance (in dollars per share) $ 19.51   $ 19.18
Weighted-average grant date fair value of granted RSUs (in dollars per share) $ 27.36    
Weighted-average grant date fair value of vested RSUs (in dollars per share) $ 19.96    
Weighted-average grant date fair value of forfeited RSUs (in dollars per share) $ 19.26    
Market-based restricted stock units [Member]
     
Restricted Stock Unit Activity [Abstract]      
Number of RSUs outstanding, ending balance 5.0