Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity (Narrative) (Details)

v2.4.1.9
Shareholders' Equity (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Aug. 02, 2014
Jan. 28, 2012
Stockholders' Equity Note [Abstract]          
Preferred stock, shares authorized 125,000,000us-gaap_PreferredStockSharesAuthorized        
Preferred stock, par value $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare        
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued        
Common stock, shares authorized 1,000,000,000us-gaap_CommonStockSharesAuthorized        
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare        
Common stock, shares issued 379,605,800us-gaap_CommonStockSharesIssued 410,605,800us-gaap_CommonStockSharesIssued 444,605,800us-gaap_CommonStockSharesIssued   487,338,500us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 340,573,700us-gaap_CommonStockSharesOutstanding 364,935,000us-gaap_CommonStockSharesOutstanding 387,701,100us-gaap_CommonStockSharesOutstanding   414,181,000us-gaap_CommonStockSharesOutstanding
Retirement of common stock 31,000,000us-gaap_TreasuryStockSharesRetired 34,000,000us-gaap_TreasuryStockSharesRetired 42,732,700us-gaap_TreasuryStockSharesRetired    
Stock repurchase program authorized amount $ 15,000us-gaap_StockRepurchaseProgramAuthorizedAmount1     $ 1,500us-gaap_StockRepurchaseProgramAuthorizedAmount1  
Stock repurchased during period, shares 31,900,000us-gaap_StockRepurchasedDuringPeriodShares 33,600,000us-gaap_StockRepurchasedDuringPeriodShares 35,600,000us-gaap_StockRepurchasedDuringPeriodShares    
Stock repurchased during period, value 1,900us-gaap_StockRepurchasedDuringPeriodValue 1,570us-gaap_StockRepurchasedDuringPeriodValue 1,350us-gaap_StockRepurchasedDuringPeriodValue    
Stock repurchase program remaining authorized repurchase amount $ 1,032us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1