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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair value measurements recurring - USD ($)
$ in Millions
Aug. 01, 2021
Jan. 31, 2021
Fair value inputs level 1    
Fair Value, Assets and Liabilities Measured on a Recurring Basis [Line Items]    
Derivative agreements – assets $ 0 $ 0
Derivative agreements – liabilities 0 0
Total 0 0
Fair value inputs level 2    
Fair Value, Assets and Liabilities Measured on a Recurring Basis [Line Items]    
Derivative agreements – assets 144 172
Derivative agreements – liabilities (87) (71)
Total 57 101
Fair value inputs level 3    
Fair Value, Assets and Liabilities Measured on a Recurring Basis [Line Items]    
Derivative agreements – assets 0 0
Derivative agreements – liabilities 0 0
Total $ 0 $ 0