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Summary of Significant Accounting Policies (Schedule of Goodwill) (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 03, 2019
Jan. 28, 2018
Jan. 29, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill, Impairment Loss $ 0 $ 0 $ 0
Goodwill [Roll Forward]      
Goodwill, balance at beginning of year 2,275 2,093  
Acquisitions 4 164 0
Disposition (15) 0 0
Other (12) 18 (9)
Goodwill, balance at end of year $ 2,252 $ 2,275 $ 2,093