Subsequent Event (Details) (Restructuring [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	11 Months Ended
	May 05, 2012	Feb. 02, 2013 store
Restructuring [Member]
Subsequent Event [Line Items]
Number of stores to be closed		50
Expected restructuring charges, low end of the range	$ 140	$ 300
Expected restructuring charges, high end of the range	160	350
Expected restructuring charges, expected noncash charge, low end of the range		30
Expected restructuring charges, expected noncash charge, high end of the range		$ 40