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Capital Stock and Earnings Per Share - Additional Information (Detail) - USD ($)
 12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Feb. 28, 2017
Feb. 29, 2016
Capital Unit [Line Items]          
Shares repurchased and retired, shares 22,300,000        
Shares repurchased and retired, value $ 1,700,000,000        
Cash expenditures under repurchase programs $ 1,699,998,000 $ 1,828,297,000 $ 1,650,704,000    
Repurchase of common stock in shares 22,278,000 26,554,000 27,602,000    
Stock repurchase program, common stock purchase value         $ 2,000,000,000
Preferred stock, shares authorized 5,000,000 5,000,000      
Preferred stock, par value $ 1 $ 1      
Antidilutive options excluded 8,100,000 4,100,000 8,800,000    
Subsequent Event          
Capital Unit [Line Items]          
Stock repurchase program, common stock purchase value       $ 1,000,000,000  
Stock Repurchase Programs 2012          
Capital Unit [Line Items]          
Remaining available stock under stock repurchase plan $ 1,800,000,000