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Capital Stock and Earnings Per Share - Additional Information (Detail) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
 0 Months Ended 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 02, 2012
Jan. 05, 2012
Apr. 30, 2012
Feb. 29, 2012
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Jan. 28, 2012
Jan. 17, 2012
Capital Unit [Line Items]                    
Stock split, conversion ratio per share   2             2  
Additional shares paid                   1
Number of shares of common stock issued 372                  
Shares repurchased and retired, shares         8.9   22.5      
Shares repurchased and retired, value         $ 400,000,000   $ 949,900,000      
Cash expenditures under repurchase programs             1,004,432,000 974,800,000    
Stock repurchased completed     1,000,000,000              
Repurchase of common stock in shares     32.3              
Stock repurchase program, common stock purchase value       2,000,000,000            
Remaining available stock under stock repurchase plan             $ 1,274,700,000      
Preferred stock, shares authorized         5   5      
Preferred stock, par value         $ 1   $ 1      
Antidilutive option excluded         4.9 0 4.9 7.8