Restructuring and Impairments - Schedule of Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017	Oct. 31, 2017
Restructuring Cost and Reserve [Line Items]
Liability, Defined Benefit Plan, Noncurrent	$ (2,422)		$ (2,422)		$ (2,497)
Asset impairment charges	$ 1	$ 5	3	$ 7
North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges			$ 1