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Fair Value Measurements and Concentrations of Credit Risk (Estimated Fair Value Of Company Long Term Debt) (Details) - USD ($)
$ in Millions
Jan. 29, 2022
Jan. 30, 2021
Long-term debt $ 3,254 $ 4,320
Notional Amount    
Long-term debt 3,295 4,454
Carrying Amount    
Long-term debt $ 3,295 $ 4,407