Aggregate Intrinsic Value for Stock Options Outstanding and Exercisable (Detail) (USD $) In Millions, unless otherwise specified	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding	$ 152	$ 90	$ 86
Outstanding and exercisable	126	72	60
Vested and expected to vest	$ 152	$ 90	$ 86

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding and Exercisable, Aggregate Intrinsic Value

No definition available.

+ Details

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

+ 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)

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

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