Taxes (Reason For Difference Between Expected Tax Computed And Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
effective income tax rate reconciliation [Line Items]
Expected tax	$ 512	$ 333	$ 587
State and local income taxes, net of federal income tax benefit	19	12	43
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	(571)	0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	14	0	0
Historic rehabilitation tax credit	(5)	(1)	(12)
Change in valuation allowance	18	9	3
Other	(16)	(12)	(13)
Income tax expense (benefit), total	$ (29)	$ 341	$ 608