Fair Value Measurements (Narrative) (Details) (USD $) In Millions, unless otherwise specified							3 Months Ended
	May 04, 2013	Feb. 02, 2013	Apr. 28, 2012	May 04, 2013 Fair Value, Inputs, Level 1	Feb. 02, 2013 Fair Value, Inputs, Level 1	Apr. 28, 2012 Fair Value, Inputs, Level 1	May 04, 2013 Fair Value, Inputs, Level 3	May 04, 2013 Fair Value, Inputs, Level 3 Minimum	May 04, 2013 Fair Value, Inputs, Level 3 Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 518	$ 537	$ 1,029
Long-term investments, par value	83	84	192
Long Term Investments Fair Value	58	53	156
Long-term Debt, Excluding Current Maturities	2,492	2,492	2,141
Long term debt, fair value				$ 2,802	$ 2,702	$ 2,435
Fair value inputs redemption period							7 years
Investment maturity date range start							2037
Investment maturity date range end							2039
Discount rate								6.57%	9.47%
Weighted Average Discount Rate, Percent							7.64%