Property and Equipment, Net Equipment Leased to Others (Details) (Details) - USD ($) $ in Millions	Oct. 31, 2019	Nov. 01, 2018	Oct. 31, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3,797		$ 3,868
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	2,488		2,498
Property and equipment, net	1,309	$ 1,261	1,370
Capital Leased Assets, Gross	20		25
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	18		21
Capital Leases, Balance Sheet, Assets by Major Class, Net	2		4
Equipment leased to others
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	562		665
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	126		177
Property and equipment, net	$ 436		$ 488