Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019	Feb. 01, 2020
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	19.30%	9.10%	74.80%	0.40%
Income Tax Expense (Benefit)	$ (79)	$ 25	$ 47	$ 1
Income Taxes Paid	9	$ 27	31	$ 208
Unrecognized Tax Benefits					$ 88
Unrecognized Tax Benefits that Would Impact Effective Tax Rate					$ 81
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities			29
Other Tax Expense (Benefit)			28
Tax Adjustments, Settlements, and Unusual Provisions	23
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 28		$ 28