Taxes (Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Taxes Payable [Abstract]
Current federal income tax expense (benefit)	$ 156	$ 367	$ 433
Deferred federal income tax expense (benefit)	79	(462)	(121)
Federal income tax expense (benefit), total	235	(95)	312
Current state and local income tax expense (benefit)	53	16	37
Deferred state and local income tax expense (benefit)	34	40	(3)
State and local income tax expense (benefit), total	87	56	34
Current income tax expense (benefit), total	209	383	470
Deferred income tax expense, total	113	(422)	(124)
Income tax expense (benefit), total	$ 322	$ (39)	$ 346