Nature Of Operations And Summary Of Significant Accounting Policies (COVID-19 Related Asset Impairment Charges) (Details) $ in Millions	12 Months Ended
	Jan. 30, 2021 USD ($)
Land, Property and Equipment [Line Items]
Long-lived asset impairment	$ 96	[1]
Operating lease ROU asset impairment	41	[1]
Total asset impairment	137
Applicable long-lived assets [Member]
Land, Property and Equipment [Line Items]
Carrying value of applicable assets after impairment	13
Applicable operating lease ROU assets [Member]
Land, Property and Equipment [Line Items]
Carrying value of applicable assets after impairment	$ 3

[1] As of January 30, 2021, the carrying value of the applicable long-lived and operating lease ROU assets after impairment was $13 and $3.