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Commitments and Contingencies Commitments and Contingencies Additional (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jul. 29, 2017
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Commitments and Contingencies Disclosure [Abstract]        
Loss Contingency, Estimate of Possible Loss   $ 0 $ 0  
Commitments and Contingencies [Line Items]        
Gain recorded on settlement $ 64      
Insurance proceeds related to loss on property and equipment   $ 0 $ 0 $ 66
Fire [Member]        
Commitments and Contingencies [Line Items]        
Insurance Proceeds       $ 193