Derivative Financial Instruments (Details) (USD $) In Millions	3 Months Ended
Apr. 30, 2011	May 01, 2010	Jan. 29, 2011
Derivative Financial Instruments
Net gains amortized into net interest expense for terminated and de-designated swaps	$ 10	$ 11
Unamortized hedged debt valuation gains from terminated and de-designated interest rate swaps	142	186	152
Other interest expense \| Interest rate swaps
Derivative Contracts - Effect on Results of Operations
Gain of derivative instrument not designated as hedging instrument	$ 11	$ 14

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The amount of net gains (losses) on a cash flow hedge reclassified in the period to interest expense from accumulated other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(1)

+ Details

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- Definition

Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective interest rate fair value hedge that must be amortized upon discontinuation of the interest rate fair value hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 24

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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- Definition

Net gain (loss) included in earnings for the period from the net change in fair value of derivative instrument not designated as hedging instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(1)(b)

+ Details

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