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Derivative Instruments Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Aug. 04, 2018
Jul. 29, 2017
Aug. 04, 2018
Jul. 29, 2017
Feb. 03, 2018
Derivatives, Fair Value [Line Items]          
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax $ 3 $ (28) $ 10 $ (18)  
Interest Rate Fair Value Hedges   2   2  
Foreign Currency Cash Flow Hedge Asset at Fair Value 3 8 3 8  
Foreign Currency Cash Flow Hedge Liability at Fair Value 1 11 1 11 $ 9
Other Current Assets [Member]          
Derivatives, Fair Value [Line Items]          
Foreign Currency Cash Flow Hedge Asset at Fair Value 3 8 3 8 0
Accounts Payable and Accrued Liabilities [Member]          
Derivatives, Fair Value [Line Items]          
Foreign Currency Cash Flow Hedge Liability at Fair Value 1 8 1 8 8
Other Noncurrent Liabilities [Member]          
Derivatives, Fair Value [Line Items]          
Foreign Currency Cash Flow Hedge Liability at Fair Value $ 0 $ 3 $ 0 $ 3 $ 1