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Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2021
Feb. 01, 2020
Fair Value Measurements [Abstract]    
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount $ 0 $ 0
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount 0 0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount 0 0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount 0 0
Non-cash gain $ 190 $ 4