Balance Sheet Details (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
Jan. 31, 2013	Oct. 31, 2012
Property, Plant and Equipment
Property, plant and equipment, gross	$ 25,855	$ 25,883
Accumulated depreciation	(14,169)	(13,929)
Property, plant and equipment, net	11,686	11,954
Investment in property, plant and equipment	635
Sale and retirement of gross Property, Plant and Equipment	669
Accumulated depreciation on sale and retirement of property, plant and equipment	542
Land
Property, Plant and Equipment
Property, plant and equipment, gross	636	636
Buildings and leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	8,752	8,744
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	$ 16,467	$ 16,503

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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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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