v2.4.0.6

Employee Benefit Plans (Summary Assumptions Related To And Valuation Of Employee Share-Based Awards (Time-Based Restricted Stock Units)) (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Mar. 17, 2011	Jul. 28, 2012 Time-Based Restricted Stock Units (RSU's)	Jul. 30, 2011 Time-Based Restricted Stock Units (RSU's)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted		62	54
Weighted-average estimated grant date fair value per share		$ 17.26	$ 20.59
Expected dividend	0.00%	1.50%	0.30%

X

- Definition

Share based Compensation Arrangement by Share based Payment Award, Equivalent Number Of Shares For Full Value Awards

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions, Stock Price

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
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Period Type:	duration

X

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph e(2)(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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 (f)(2)(iii)

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

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- Details

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