Segment Reporting - Summary of Segment Assets (Details) - USD ($) $ in Millions	Jan. 31, 2017	Oct. 31, 2016
Segment Reporting Information [Line Items]
Segment Assets	$ 5,394	$ 5,653
North America Truck [Member]
Segment Reporting Information [Line Items]
Segment Assets	1,694	1,520
North America Parts [Member]
Segment Reporting Information [Line Items]
Segment Assets	605	594
Global Operations [Member]
Segment Reporting Information [Line Items]
Segment Assets	354	407
Financial Services Operations
Segment Reporting Information [Line Items]
Segment Assets	1,789	2,116
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Segment Assets	$ 952	$ 1,016