Balance Sheet Details (Details 2) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 11,877	$ 12,897
Accumulated depreciation	(5,608)	(6,522)
Property, plant and equipment, net	6,269	6,375
Depreciation expense	2,200	2,000	$ 2,200
Sale and retirement of gross property, plant and equipment	3,100
Investment in property, plant and equipment	3,100
Unfavorable currency impacts on gross property plant and equipment	200
Accumulated depreciation on sale and retirement of property, plant and equipment	2,400
Spinoff | Everett SpinCo, Inc. and Seattle SpinCo, Inc.
Property, Plant and Equipment, Net
Divestiture of property, plant and equipment	1,200
Land
Property, Plant and Equipment, Net
Property, plant and equipment, gross	312	353
Buildings and leasehold improvements
Property, Plant and Equipment, Net
Property, plant and equipment, gross	2,371	3,483
Machinery and equipment, including equipment held for lease
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 9,194	$ 9,061