Segment Reporting - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2015 USD ($)	Jul. 31, 2014 USD ($)	Jul. 31, 2015 USD ($) segments	Jul. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number Of Segments | segments			4
Intersegment sales and revenues	$ 0	$ 0	$ 0	$ 0
Sales and revenues, net	2,538	2,844	7,652	7,798
North America Truck [Member]
Segment Reporting Information [Line Items]
Intersegment sales and revenues	49	46	121	166
Sales and revenues, net	1,834	2,002	5,470	5,342
North America Parts [Member]
Segment Reporting Information [Line Items]
Intersegment sales and revenues	11	15	29	43
Sales and revenues, net	625	644	1,864	1,860
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment sales and revenues	(95)	(95)	(263)	(292)
Sales and revenues, net	$ (93)	$ (95)	$ (256)	$ (292)