Discontinued Operations - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Oct. 31, 2015
Statements of Operations for Discontinued Operations [Line Items]
Asset impairment charges	$ 2	$ 7
Impairment of Intangible Assets (Excluding Goodwill)	2	7
Goodwill	38		$ 38
North America Truck [Member]
Statements of Operations for Discontinued Operations [Line Items]
Asset impairment charges	$ 2
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 7