Property and Equipment, Net Equipment Leased to Others (Details) (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3,633	$ 3,797
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	2,335	2,488
Property and equipment, net	1,298	1,309
Capital Leased Assets, Gross	6	20
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	4	18
Capital Leases, Balance Sheet, Assets by Major Class, Net	2	2
Equipment leased to others
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	561	562
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	144	126
Property and equipment, net	$ 417	$ 436

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 of leased physical assets used in the normal conduct of business to produce goods and services.

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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