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Stock-based Compensation (Narrative) (Details)
$ in Millions
12 Months Ended
Jan. 31, 2021
USD ($)
yearOld
shares
Feb. 02, 2020
USD ($)
shares
Feb. 03, 2019
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of employee stock purchase plans 2    
Weighted average period over which unrecognized compensation will be recognized 2 years    
2005 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock authorized (in shares) 255,000,000    
Reduction in number of shares available for Issuance (in shares) 2.11    
Shares available for future grants 120,000,000    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 25.00%    
Age at which award becomes non-forfeitable | yearOld 60    
Award requisite service period 5 years    
Intrinsic value of option exercises in period | $ $ 217 $ 241 $ 138
Share-based compensation arrangement by share-based payment award, number of options outstanding 4,350,000 5,212,000  
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Age at which award becomes non-forfeitable | yearOld 60    
Share-based compensation arrangement by share-based payment award, maximum period of restrictions lapse 5 years    
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%    
Age when remaining stock lapses | yearOld 62    
Award requisite service period 5 years    
Share-based compensation performance cycle period 3 years    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Conversion of Stock, Shares Converted 1