Supplementary Financial Information - Property Plant & Equipment (Details) - USD ($) $ in Millions	Jul. 31, 2020	Oct. 31, 2019
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 7,303	$ 7,037
Accumulated depreciation	(4,645)	(4,243)
Property, plant and equipment, net	2,658	2,794
Land, buildings and leasehold improvements
Property, Plant and Equipment, Net
Property, plant and equipment, gross	2,069	1,977
Machinery and equipment, including equipment held for lease
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 5,234	$ 5,060

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of 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, and furniture and fixtures.

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