Restructuring and Impairments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Apr. 30, 2017	Jan. 31, 2017	Apr. 30, 2016	Jul. 31, 2014	Apr. 30, 2017	Apr. 30, 2016	Oct. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2		$ 3		$ 9	$ 6
Restructuring and Related Cost, Incurred Cost					8	6
Asset impairment charges	5		$ 3		7	5
Goodwill	$ 38				38		$ 38
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost					0	0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost					8	6
Lease Vacancy [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost					0	$ 0
North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges					$ 7
Other Postretirement Benefit Plan [Member] | Chatham [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Postemployment Benefits, Period Expense		$ 6		$ 14