Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Oct. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 2	$ 7
Goodwill	$ 38		$ 38
Cash and Cash Equivalents, Maturity Term	90 days
Marketable Securities, Maturity Term	90 days
North America Truck [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 2
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 7