Fair Value Measurements (Details Textual) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2013	Aug. 03, 2012	Aug. 02, 2013	Aug. 03, 2012
Quantitative Disclosures of Fair Value Information
Impairment losses	$ 3	$ 17	$ 5	$ 22
Operating Locations [Member]
Quantitative Disclosures of Fair Value Information
Number of locations impaired during the period			0
Impairment losses			0
Additional impairment losses that would have resulted from a change in inputs to a different amount			37
Excess Properties [Member]
Quantitative Disclosures of Fair Value Information
Number of locations impaired during the period			8
Impairment losses			5
Additional impairment losses that would have resulted from a change in inputs to a different amount			$ 2