Fair Value Measurements - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Oct. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 7	$ 18
Goodwill	38		38
Cash and Cash Equivalents, Maturity Term	90 days
Marketable Securities, Maturity Term	90 days
Brazilian Reporting Unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	16
North America Truck [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 7	$ 18