Taxes (Reason For Difference Between Expected Tax Computed And Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Taxes Payable [Abstract]
Expected tax	$ 588	$ 836	$ 801
State and local income taxes, net of federal income tax benefit	43	59	45
Historic rehabilitation tax credit	(12)	(20)	(16)
Change in valuation allowance	3	1	(16)
Other	(14)	(12)	(10)
Income tax expense (benefit), total	$ 608	$ 864	$ 804