Basis of Presentation Schedule of Cumulative On Adoption Impact of ASU 2014-09 (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 assets	$ 365		$ 355	$ 374	$ 614
Gift Card Liability, Current	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 assets	384			374
Gift Card Liability, Current	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 assets	(19)	[1]	(19)
Gift Card Liability, Current	(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.