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Income Taxes (Federal Statutory Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 29, 2017	Jan. 31, 2016	Feb. 01, 2015
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	36.30%	36.40%	36.40%
Reconciliation of the Provision for Income Taxes:
Income taxes at federal statutory rate	$ 4,372	$ 3,857	$ 3,492
State income taxes, net of federal income tax benefit	309	309	235
Other, net	(147)	(154)	(96)
Total	$ 4,534	$ 4,012	$ 3,631

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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