Description of Business and Summary of Significant Accounting Policies (Depreciable Life Range of Property Plant and Equipment) (Details)	12 Months Ended
	Jan. 28, 2012 Y
Software, Including Software Developed for Internal Use [Member]
Depreciable Life Range, Minimum	3
Depreciable Life Range, Maximum	7
Store Related Assets [Member]
Depreciable Life Range, Minimum	3
Depreciable Life Range, Maximum	10
Leasehold Improvements [Member]
Depreciable Life Range	Shorter of lease term or 10 years
Depreciable Life Range, Maximum	10
Non-Store Related Building and Site Improvements [Member]
Depreciable Life Range, Minimum	10
Depreciable Life Range, Maximum	15
Other Property and Equipment [Member]
Depreciable Life Range	20
Building [Member]
Depreciable Life Range	30