Components of Income (Loss) From Continuing Operations before Provision (Benefit) For Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
United States	$ (503)	$ (606)	$ (678)
Foreign	19	21
Total	$ (484)	$ (585)	$ (678)

Sum of operating profit and nonoperating income (expense) before income taxes.

No definition available.

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- Details

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 1(i)

-Article 4

+ Details

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

+ References

+ Details

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