This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

Name:	us-gaap_DebtInstrumentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Fair Value Measurements (Details 2) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Aug. 03, 2013	Aug. 03, 2013 Carrying amount	Feb. 02, 2013 Carrying amount	Jul. 28, 2012 Carrying amount	Aug. 03, 2013 Fair Value	Feb. 02, 2013 Fair Value	Jul. 28, 2012 Fair Value
Fair Value Measurements
Effect of one percentage point change in forecasted credit EBIT yield on estimated fair value	$ 26
Effect of one percentage point change in forecasted discount rate on estimated fair value	6
Financial liabilities
Total debt		$ 12,484	$ 15,618	$ 16,647	$ 14,018	$ 18,143	$ 19,666