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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. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Commitments and Contingencies Disclosure [Abstract]        
Loss Contingency, Estimate of Possible Loss   $ 0 $ 0  
Commitments and Contingencies [Line Items]        
Insurance Settlements Receivable       $ 32
Gain recorded on settlement $ 64   64 73
Insurance proceeds related to loss on property and equipment   $ 0 66 0
Fire [Member]        
Commitments and Contingencies [Line Items]        
Insurance Proceeds     $ 193  
Insurance Proceeds, Advance of Funds       $ 174