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Basis of Presentation (Total Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($)
$ in Millions
Aug. 01, 2020
Feb. 01, 2020
Aug. 03, 2019
Feb. 02, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]        
Cash and cash equivalents $ 5,305 $ 2,229 $ 1,289  
Restricted cash included in Other current assets 117 126 115  
Total cash, cash equivalents and restricted cash $ 5,422 $ 2,355 $ 1,404 $ 2,184