Basis of Presentation Schedule of Impact of ASU 2014-09 on Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions		Aug. 04, 2018		Feb. 04, 2018	Feb. 03, 2018	Jul. 29, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets		$ 510			$ 438	$ 456
Other assets		365		$ 355	374	614
Unredeemed gift card liabilities		275		316	385	383
Deferred revenue		438		427	453	427
Accrued liabilities		801		861	864	787
Accrued income taxes		12		143	137	83
Retained earnings		2,863		3,343	3,270	$ 3,996
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets		461
Other assets		384			374
Unredeemed gift card liabilities		344			385
Deferred revenue		462			453
Accrued liabilities		754			864
Accrued income taxes		6			137
Retained earnings		2,793			$ 3,270
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Adoption of ASU 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets	[1]	49
Other assets		(19)	[1]	(19)
Unredeemed gift card liabilities		(69)	[1]	(69)
Deferred revenue		(24)	[1]	(26)
Accrued liabilities		47	[1]	(3)
Accrued income taxes		6	[1]	6
Retained earnings		$ 70	[1]	$ 73

[1] (1)Effect of change includes the opening retained earnings adjustment as detailed within the table above.