v2.4.0.6

Employee Benefit Plans (Summary Of Stock Option Activity) (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Employee Stock Benefit Plans [Abstract]
Beginning balance, Number Outstanding	621	732	1,004
Assumed from acquisitions, Number Outstanding	1
Granted and assumed, Number Outstanding			15
Exercised, Number Outstanding	(66)	(80)	(158)
Canceled/forfeited/expired, Number Outstanding	(36)	(31)	(129)
Ending balance, Number Outstanding	520	621	732
Assumed from acquisitions, Weighted-Average Exercise Price per Share	$ 2.08
Weighted-Average Exercise Price per Share, Beginning Balance	$ 21.79	$ 21.39	$ 24.29
Granted and assumed, Weighted-Average Exercise Price per Share			$ 13.23
Exercised, Weighted-Average Exercise Price per Share	$ 13.51	$ 16.55	$ 17.88
Canceled/forfeited/expired, Weighted-Average Exercise Price per Share	$ 23.40	$ 25.91	$ 47.31
Weighted-Average Exercise Price per Share, Ending Balance	$ 22.68	$ 21.79	$ 21.39

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Assumed From Acquisition In Period Weighted Average Exercise Price

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Assumed From Acquisitions In Period

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Share Based Compensation Arrangement By Share Based Payment Award Options Available For Grant, Options Assumed In Period

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- Definition

The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

+ 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)(e)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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- Definition

The combined weighted average exercise price associated with stock options during the period that have either lapsed or been forfeited.

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- Definition

The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(d)

-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 number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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- Definition

The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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-Publisher FASB

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-Subparagraph b(1)(a)

-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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Number of share options (or share units) exercised during the current period.

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