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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Jan. 30, 2021
Feb. 01, 2020
Feb. 02, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of common stock issued under deferred and stock-based compensation plan arrangement 2.2 2.1 4.9
Aggregate number of additional shares authorized to be issued under equity incentive plan 1,000.0 1,000.0  
Common stock, shares outstanding 157.8 155.6  
ESPP offering period 6 months    
Other current liabilities $ 1,048 $ 1,190  
Exercise price at time of grant (in dollars per share) [1] $ 17 $ 45  
2019 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares or units authorized under equity incentive plan 9.5    
Aggregate number of additional shares authorized to be issued under equity incentive plan 24.5    
Common stock, shares outstanding 16.2    
Shares available for grant under equity incentive plan 18.3    
Additional Option Grant      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Exercise price at time of grant (in dollars per share) $ 15    
Employee stock purchase plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum percentage of employee payroll deductions under ESPP 10.00%    
Percentage of fair market value for purchase of shares of common stock in ESPP 90.00%    
Shares authorized under Employee Stock Purchase Plan 12.6    
Shares available for issuance under Employee Stock Purchase Plan 3.8    
Shares issued under Employee Stock Purchase Plan 1.0 0.5  
Other current liabilities $ 5 $ 5  
Restricted stock units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period, in years 4 years    
Total fair value of units vested $ 44 $ 65 $ 54
Total unrecognized stock-based compensation expense related to nonvested share-based awards $ 74    
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 25 months    
Stock options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total unrecognized stock-based compensation expense related to nonvested share-based awards $ 24    
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 20 months    
Exercise price at time of grant (in dollars per share) $ 16    
Option expiration period, in years 10 years    
Stock options [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period, in years 4 years    
Stock options [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period, in years 2 years    
[1] There were no stock options granted in 2018.