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Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Combined federal, state and foreign effective tax rate	37.00%	36.30%	36.40%
Federal statutory rate	34.00%	35.00%	35.00%
Reconciliation of the Provision for Income Taxes:
Income taxes at federal statutory rate	$ 4,648	$ 4,372	$ 3,857
State income taxes, net of federal income tax benefit	369	309	309
Tax on mandatory deemed repatriation	400	0	0
Other, net	(349)	(147)	(154)
Provision for income taxes	$ 5,068	$ 4,534	$ 4,012

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- Definition

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

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-Publisher FASB
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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