Taxes (Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Taxes Payable [Abstract]
Current federal income tax expense (benefit)	$ 137	$ 156	$ 367
Deferred federal income tax expense (benefit)	4	79	(462)
Federal income tax expense (benefit), total	141	235	(95)
Current state and local income tax expense (benefit)	33	54	15
Deferred state and local income tax expense (benefit)	(10)	33	41
State and local income tax expense (benefit), total	23	87	56
Current income tax expense (benefit), total	170	210	382
Deferred income tax expense, total	(6)	112	(421)
Income tax expense (benefit), total	$ 164	$ 322	$ (39)