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Description of Business and Summary of Significant Accounting Policies (Narrative) (Details)
$ in Millions
12 Months Ended
Feb. 02, 2019
USD ($)
Feb. 03, 2018
USD ($)
Jan. 28, 2017
USD ($)
Deferred Rent Credit, Noncurrent $ 220 $ 210  
Maturity of short term investments, maximum, in days 90    
Outstanding Check Carrying Amount $ 13 14  
Advertising expense 476 383 $ 325
Unamortized portion of landlord allowances $ 278 $ 293