Restructuring and Other Charges (Details) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended
Apr. 30, 2011	Apr. 30, 2011	Jul. 30, 2011 Maximum [Member]	Jul. 30, 2011 Minimum [Member]
Excess inventories and purchase commitments with contract manufacturers and suppliers	$ 115,000,000	$ 115,000,000
Other	5,000,000	5,000,000
Total cost of sales	120,000,000	120,000,000
Workforce reduction	18,000,000	18,000,000
Impairment of purchased intangible assets	8,000,000	8,000,000
Other	5,000,000	5,000,000
Total operating expenses	31,000,000	31,000,000
Total restructuring and other charges	151,000,000	151,000,000
Employees impacted due to restructuring plan	350
Expected pretax charges			$ 1,100,000,000	$ 500,000,000

Expected Pretax charges

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- Definition

Restructuring and other charges operating expenses.

+ Details

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- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ Details

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- Definition

Restructuring Cost Related To Excess Facilities And Other.

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- Definition

Restructuring Cost Related To Excess inventories and purchase commitments with contract manufacturers and suppliers.

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- Definition

Restructuring Cost Related To Impairment Of Purchased Intangible Assets

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- Definition

Total cost of sales related to restructuring and other charges.

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- Definition

The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146
-Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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- Definition

Amount charged against earnings in the period for incurred and estimated costs, excluding asset retirement obligations, associated with exit from or disposal of business activities or restructurings pursuant to a program that is planned and controlled by management, and materially changes either the scope of a business undertaken by an entity, or the manner in which that business is conducted.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5-8

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146
-Paragraph 8-13, 20

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS146-1

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 112
-Paragraph 7

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