Derivative Financial Instruments (Foreign Exchange Forward Contracts Outstanding to Buy Notional Amounts Related to Intercompany Balances that Bear Foreign Exchange Risk) (Details) In Millions	Apr. 30, 2011 Currency, U.S. Dollars [Member] USD ($)	Jan. 29, 2011 Currency, U.S. Dollars [Member] USD ($)	May 01, 2010 Currency, U.S. Dollars [Member] USD ($)	Apr. 30, 2011 Currency, British Pounds [Member] GBP (£)	Jan. 29, 2011 Currency, British Pounds [Member] GBP (£)	May 01, 2010 Currency, British Pounds [Member] GBP (£)	Apr. 30, 2011 Currency, Japanese Yen [Member] JPY (¥)	Jan. 29, 2011 Currency, Japanese Yen [Member] JPY (¥)	May 01, 2010 Currency, Japanese Yen [Member] JPY (¥)	Apr. 30, 2011 Currency Euro Yen [Member] EUR (€)	Jan. 29, 2011 Currency Euro Yen [Member] EUR (€)	May 01, 2010 Currency Euro Yen [Member] EUR (€)
Notional amounts of derivatives not designated as hedging instruments	$ 6	$ 12	$ 2	£ 1			¥ 5,056	¥ 3,238	¥ 3,238	€ 14

Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant