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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Fair Value, Recurring - USD ($)
$ in Millions
Jan. 30, 2022
Jan. 31, 2021
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring Basis[Line Items]    
Derivative agreements – assets $ 0 $ 0
Derivative agreements – liabilities 0 0
Total 0 0
Significant Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring Basis[Line Items]    
Derivative agreements – assets 58 172
Derivative agreements – liabilities (249) (71)
Total (191) 101
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring Basis[Line Items]    
Derivative agreements – assets 0 0
Derivative agreements – liabilities 0 0
Total $ 0 $ 0