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Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 27 Months Ended
May 01, 2021
May 01, 2021
Oct. 31, 2020
May 02, 2020
Feb. 01, 2020
Nov. 02, 2019
Fair Value Measurements [Abstract]            
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount     $ 0   $ 0 $ 0
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount     0   0 0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount     0   0 0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount     $ 0   $ 0 $ 0
Equity method investment fair value $ 323 $ 323   $ 142    
Impairment of investments $ 2 $ 13