Fair Value Measurements (Financial Assets Measured At Fair Value On A Recurring and Nonrecurring Basis) (Details) $ in Millions	6 Months Ended
	Jul. 30, 2016 USD ($)	Aug. 01, 2015 USD ($)
Asset impairment charges - indefinite lived tradenames	$ 7
Planned store closings	100
Carrying Value Of Long Lived Assets Held And Used	$ 326
Marketable equity and debt securities	141	$ 101
Property, Plant, and Equipment, Fair Value Disclosure	106
Impairment of Long-Lived Assets Held-for-use	220
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Marketable equity and debt securities	0	0
Significant Observable Inputs (Level 2) [Member]
Marketable equity and debt securities	141	101
Significant Unobservable Inputs (Level 3) [Member]
Marketable equity and debt securities	$ 0	$ 0