Fair Value Measurements (Estimate Of The Fair Value Of Long-term Debt) (Details) (USD $) In Millions, unless otherwise specified	Aug. 03, 2013		Feb. 02, 2013		Jul. 28, 2012
Fair Value Measurements, Long-term Debt [Line Items]
Carrying value of long-term debt	$ 3,122	[1]	$ 3,131	[1]	$ 3,139	[1]
Level 2 [Member]
Fair Value Measurements, Long-term Debt [Line Items]
Fair value of long-term debt	$ 3,471		$ 3,665		$ 3,755

[1] The carrying value of long-term debt includes the remaining adjustment from our previous effective fair value hedge.