Balance Sheet Details (Details 2) (USD $)	12 Months Ended
Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Property, Plant and Equipment
Property, plant and equipment, gross	$ 25,462,000,000	$ 22,927,000,000
Accumulated depreciation	(13,170,000,000)	(11,164,000,000)
Property, plant and equipment, net	12,292,000,000	11,763,000,000
Depreciation expense	3,400,000,000	3,300,000,000	3,200,000,000
Land
Property, Plant and Equipment
Property, plant and equipment, gross	687,000,000	530,000,000
Buildings and leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	8,620,000,000	8,523,000,000
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	$ 16,155,000,000	$ 13,874,000,000

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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