Goodwill, Trade Names And Other Intangible Assets, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011	Jan. 28, 2012
Goodwill Trade Names And Other Intangible Assets Net
Intangible assets with finite lives	$ 8	$ 13	$ 8	$ 13	$ 9
Amortization of Intangible Assets	1	1	2	3
Estimated future amortization expense for the remainder of 2012	1		1
Estimated future annual amortization expense in 2013	3		3
Estimated future annual amortization expense in 2014	2		2
Estimated future annual amortization expense in 2015	$ 2		$ 2