The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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Fair Value Measurements (Narrative) (Details) (USD $) In Millions, unless otherwise specified				12 Months Ended	6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011 Level 2 [Member]	Jul. 30, 2011 Level 3 [Member]	Jan. 28, 2012 HauteLook [Member] Earn-out [Member]	Jul. 28, 2012 Fair Value, Measurements, Nonrecurring [Member]	Jul. 30, 2011 Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap		$ 48
HauteLook earn-out liability			44
Settlement of earn-out provisions				30
Fair value of long-term debt including current maturities	3,755
Carrying value of long-term debt	3,139
Impairment charges					$ 0	$ 0