Leases (Schedule Of Rent Expense) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Operating Leased Assets [Line Items]
Percentage rent	$ 12	$ 9	$ 9
Property incentives	(65)	(60)	(55)
Total rent expense	78	62	43
Store Locations [Member]
Minimum rent:
Fiscal year, Minimum rent	108	94	76
Offices, Warehouses And Equipment [Member]
Minimum rent:
Fiscal year, Minimum rent	$ 23	$ 19	$ 13