Other Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Goodwill and Other Intangible Assets, Net [Abstract]
Amortization Of Intangible Assets	$ 4	$ 4	$ 6
Changes in balance of amortizing intangible assets	(2)
Increase (Decrease) in Lease Acquisition Costs	$ 2