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Employee Stock Plans (Narrative) (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 01, 2015
USD ($)
years_old
$ / shares
shares
Feb. 02, 2014
USD ($)
shares
Feb. 03, 2013
USD ($)
shares
Jan. 29, 2012
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage at Which Restricted Stock Lapse upon Third And Sixth Anniversaries of Date of Issuance 25.00%      
Remaining Percentage of the Restricted Stock Lapsing upon the Associate's Attainment of Age Sixty Two 50.00%      
Remaining Percentage of Restricted Stock Lapsing upon Earlier of Associate's Attainment of Age Sixty or the Tenth Anniversary Date 50.00%      
Share-based Compensation Expense [1] $ 225 $ 228 $ 218  
Intrinsic Value of Option Exercises in Period $ 234 $ 181 $ 246  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares 11,045,000 13,959,000 16,617,000 33,170,000
Weighted Average Remaining Life of Options Outstanding 6 years      
Intrinsic Value of Options Outstanding $ 616      
Stock Options Exercisable | shares 4,000,000      
Weighted Average Exercise Price of Options Exercisable | $ / shares $ 31.99      
Weighted Average Remaining Contractual Term of Options Exercisable 4 years      
Intrinsic Value of Options Exercisable $ 292      
Number of Outstanding Options Vested and Expected to Vest | shares 9,000,000      
Number Of Employee Stock Purchase Plans 2      
2005 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common Stock Authorized | shares 255,000,000      
Reduction in Number of Shares Available for Issuance | shares 2.11      
Shares Available for Future Grants | shares 141,000,000      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Rights, Percentage 25.00%      
Age at Which Award becomes Non-Forfeitable | years_old 60      
Award Requisite Service Period 5 years      
Share-based Compensation Expense $ 23 $ 24 $ 23  
Unrecognized Compensation Expense $ 39      
Weighted Average Period over Which Unrecognized Compensation Will Be Recognized 2 years      
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Age at Which Award becomes Non-Forfeitable | years_old 60      
Age When Remaining Stock Lapses If Not Tenth Anniversary Of Grant Date | years_old 60      
Age When Remaining Stock Lapses | years_old 62      
Award Requisite Service Period 5 years      
Share-based Compensation Arrangement By Share-based Payment Award, Maximum Period Of Restrictions Lapse 5 years      
Share-based Compensation Expense $ 168 171 166  
Unrecognized Compensation Expense $ 297      
Weighted Average Period over Which Unrecognized Compensation Will Be Recognized 2 years      
Fair Value of Equity Instruments Other than Options Vested in Period $ 334 353 265  
Deferred Compensation, Share-based Payments [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Expense $ 14 $ 14 $ 13  
[1] Fiscal years ended February 1, 2015 and February 2, 2014 include 52 weeks. Fiscal year ended February 3, 2013 includes 53 weeks.