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Leases - Summary of Financing Obligations (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 31, 2021
Jul. 31, 2021
Aug. 01, 2020
Jan. 30, 2021
Assets        
Financing obligations $ 60 $ 60   $ 65
Liabilities        
Current 34 34   39
Noncurrent 449 449   461
Total financing obligations 483 483   $ 500
Income Statement        
Amortization of financing obligation assets 3 5    
Interest on financing obligations 10 19    
Total financing obligations $ 13 24    
Cash paid for amounts included in the measurement of financing obligations        
Operating cash flows from financing obligations   19    
Financing cash flows from financing obligations   18    
Proceeds from financing obligations   $ 4 $ 3