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Restructuring and Impairments - North American Manufacturing Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Apr. 30, 2012 Custom Products Operations Union City and Coburg [Member] Truck [Domain]	Apr. 30, 2012 Custom Products Operations Union City and Coburg [Member] Parts [Member]	Jan. 31, 2013 Minimum [Member] Chatham [Member] Truck [Domain]	Jan. 31, 2013 Minimum [Member] Facility Closing [Member] Garland Assembly Plant [Member] Truck [Domain]	Jan. 31, 2013 Maximum [Member] Chatham [Member] Truck [Domain]	Jan. 31, 2013 Maximum [Member] Facility Closing [Member] Garland Assembly Plant [Member] Truck [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2	$ 0
Restructuring and Related Cost, Expected Cost					30	20	70	40
Impairment of Intangible Assets (Excluding Goodwill)			$ 28	$ 10

Amount expected to be charged against earnings in the current and future periods for the specified restructuring cost.

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- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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