Discontinued Operations - Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended			1 Months Ended	12 Months Ended
	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2013 dealcor	Oct. 31, 2012 dealcor	Oct. 31, 2011 dealcor	Oct. 31, 2013 NA Truck [Member]	Oct. 31, 2013 Discontinued Operations [Member]	Oct. 31, 2012 Discontinued Operations [Member]	Oct. 31, 2011 Discontinued Operations [Member]	Oct. 31, 2013 Mahindra [Member]	Oct. 31, 2013 Bison Coach [Member]
Statements of Operations for Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses		$ 19							$ 33			$ 16					$ 16
Asset Impairment Charges		24							97	16	13
Sales and revenues, net													73	253	317
Loss before income taxes													(41)	(71)	(115)
Income tax benefit													0	0	41
Loss from discontinued operations, net of tax	(1)	(10)	(21)	(9)	(32)	4	(34)	(9)	(41)	(71)	(74)		(41)	(71)	(74)
Gain (Loss) on Disposition of Business																$ 26
Number of Dealcors									2	2	4