Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended			23 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017	Dec. 31, 2017
Net tax deficiencies from share based payment accounting		$ 15
Federal income tax statutory rate	21.00%	33.70%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ (17)	$ (584)	$ 0
Net change in the valuation allowance	10	$ 29
Valuation Allowance, Deferred Tax Asset, Explanation of Change		11
Federal net operating loss carryforwards	0
Operating Loss Carryforwards	374
State credit carryforwards	11
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	120	$ 111
Charges (credit) to income tax expense for federal, state and local interest and penalties	$ 5	$ (3)	$ 2
Maximum [Member]
Operating Loss Carryforwards, Expiration Dates	Dec. 31, 2038
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 55
Minimum [Member]
Operating Loss Carryforwards, Expiration Dates	Dec. 31, 2019
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 0