Stock-Based Compensation - Schedule of Stock Options Outstanding, Vested or Expected to Vest, and Exercisable (Detail) (USD $)	12 Months Ended
Feb. 02, 2013
Schedule Of Share Based Compensation Arrangements [Line Items]
Options Outstanding, Number of Options	8,159,577
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 8 months 27 days
Options Outstanding, Weighted-Average Exercise Price	$ 41.41
Options Exercisable, Number of Options	8,093,077
Options Exercisable, Weighted-Average Exercise Price	$ 41.48
Vested or expected to vest as of February 2, 2013, Number of Options	8,159,577
Vested or expected to vest as of February 2, 2013, Weighted-Average Remaining Contractual Life (in years)	9 years 8 months 27 days
Vested or expected to vest as of February 2, 2013, Weighted-Average Exercise Price	$ 41.41
Range of Exercise Prices $24.00 - $29.00 [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Range of Exercise Prices, Lower	$ 24.00
Range of Exercise Prices, Upper	$ 29.00
Options Outstanding, Number of Options	2,139,425
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 8 months 27 days
Options Outstanding, Weighted-Average Exercise Price	$ 27.52
Options Exercisable, Number of Options	2,139,425
Options Exercisable, Weighted-Average Exercise Price	$ 27.52
Range of Exercise Prices $30.00 - $33.00 [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Range of Exercise Prices, Lower	$ 30.00
Range of Exercise Prices, Upper	$ 33.00
Options Outstanding, Number of Options	66,500
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 10 months 21 days
Options Outstanding, Weighted-Average Exercise Price	$ 32.38
Options Exercisable, Number of Options
Options Exercisable, Weighted-Average Exercise Price
Range of Exercise Prices $46.50 [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Range of Exercise Prices, Upper	$ 46.50
Options Outstanding, Number of Options	5,953,652
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 8 months 27 days
Options Outstanding, Weighted-Average Exercise Price	$ 46.50
Options Exercisable, Number of Options	5,953,652
Options Exercisable, Weighted-Average Exercise Price	$ 46.50

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph d(1)

-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.

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- Definition

As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

+ References

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- Definition

Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c)

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a, b)

-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.

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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