Restructuring and Impairments - Narrative (Details) - Impairment Type [Domain] - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Jul. 31, 2015	Jan. 31, 2015	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 13		$ 16			$ 22	$ 27
Asset impairment charges	7		4			15	173
Goodwill, Impairment Loss			0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13			$ 8
North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges					$ 18		19
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	3	$ 7
Minimum [Member] | Chatham [Member] | North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	0					0
Maximum [Member] | Chatham [Member] | North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	60					60
Maximum [Member] | Indianapolis and Waukesha Foundry [Member] | North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3					28
Brazilian Reporting Unit [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges				149
Goodwill, Impairment Loss	0			142		0	142
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 3		0	$ 7		$ 3	$ 7
Other Postretirement Benefit Plan [Member] | Chatham [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Postemployment Benefits, Period Expense			$ 14