Commitments and Contingencies - Additional Information (Detail) (Internal Revenue Service (IRS), USD $) In Millions, unless otherwise specified	6 Months Ended	24 Months Ended
Jul. 29, 2012	Jan. 30, 2011 Home Depot
Commitments and Contingencies [Line Items]
Proceeds cash refunds tax of home depot from IRS		$ 354
Cash refunds challenged by IRS	299
Income tax examination, interest expense	32
Contingent increase in deferred tax asset before valuation allowance	$ 231

Income tax cash refunds, resulting from NOL carrybacks, which are being challenged by the IRS.

No definition available.

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- Definition

If the IRS is successful in defending its positions with regard to the disallowed deductions, certain disallowed deductions may be available in the form of increases in deferred tax assets before valuation allowance.

+ References

No definition available.

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- Definition

The amount of estimated interest recognized in the period arising from income tax examinations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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- Definition

The amount of cash received during the period as refunds for the overpayment of taxes.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585

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