Balance Sheet Details (Details 2) (USD $)	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Property, Plant and Equipment
Property, plant and equipment, gross	$ 25,883,000,000	$ 25,462,000,000
Accumulated depreciation	(13,929,000,000)	(13,170,000,000)
Property, plant and equipment, net	11,954,000,000	12,292,000,000	11,763,000,000
Depreciation expense	3,300,000,000	3,400,000,000	3,300,000,000
Investment in property, plant and equipment	3,700,000,000
Sale and retirement of gross Property, Plant and Equipment	2,700,000,000
Accumulated depreciation on sale and retirement of property, plant and equipment	2,200,000,000
Land
Property, Plant and Equipment
Property, plant and equipment, gross	636,000,000	687,000,000
Buildings and leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	8,744,000,000	8,620,000,000
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	$ 16,503,000,000	$ 16,155,000,000