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Description of Business and Summary of Significant Accounting Policies (Narrative) (Details)
$ in Millions
12 Months Ended
Feb. 03, 2018
USD ($)
Jan. 28, 2017
USD ($)
Jan. 30, 2016
USD ($)
Deferred Rent Credit, Noncurrent $ 210 $ 191  
Maturity of short term investments, maximum, in days 90    
Outstanding Check Carrying Amount $ 14 5  
Catalogue and advertising expense 383 325 $ 414
Unamortized portion of landlord allowances $ 293 $ 279