Segment Reporting - Summary of Segment Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Segment Reporting Information [Line Items]
External sales and revenues, net									$ 8,110	$ 10,140	$ 10,806
Sales and revenues, net	$ 2,063	$ 2,086	$ 2,197	$ 1,765	$ 2,488	$ 2,538	$ 2,693	$ 2,421	8,111	10,140	10,806
Loss from continuing operations, net of tax									(97)	(187)	(622)
Income tax expense									(33)	(51)	(26)
Interest expense									327	307	314
Equity in income of non-consolidated affiliates									6	6	9
Capital expenditures									116	115	88
Intersegment sales and revenues									1	0	0
Segment Profit Loss									(64)	(136)	(596)
Depreciation, Depletion and Amortization									225	281	332
North America Truck [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net									5,271	7,055	7,255
Sales and revenues, net									5,403	7,213	7,473
Loss from continuing operations, net of tax									(189)	(141)	(380)
Income tax expense									0	0	0
Interest expense									0	0	0
Equity in income of non-consolidated affiliates									5	5	5
Capital expenditures									97	92	65
Intersegment sales and revenues									132	158	218
Segment Profit Loss									(189)	(141)	(380)
Depreciation, Depletion and Amortization									129	173	216
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net									10	10	0
Sales and revenues, net									(295)	(333)	(390)
Loss from continuing operations, net of tax									(627)	(669)	(593)
Income tax expense									(33)	(51)	(26)
Interest expense									247	233	243
Equity in income of non-consolidated affiliates									0	0	0
Capital expenditures									11	12	8
Intersegment sales and revenues									(305)	(343)	(390)
Segment Profit Loss									(594)	(618)	(567)
Depreciation, Depletion and Amortization									15	20	27
North America Parts [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net									2,398	2,475	2,493
Sales and revenues, net									2,427	2,513	2,551
Loss from continuing operations, net of tax									640	592	528
Income tax expense									0	0	0
Interest expense									0	0	0
Equity in income of non-consolidated affiliates									4	4	4
Capital expenditures									2	3	6
Intersegment sales and revenues									29	38	58
Segment Profit Loss									640	592	528
Depreciation, Depletion and Amortization									13	14	15
Global Operations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net									296	455	905
Sales and revenues, net									341	506	940
Loss from continuing operations, net of tax									(21)	(67)	(274)
Income tax expense									0	0	0
Interest expense									0	0	0
Equity in income of non-consolidated affiliates									(3)	(3)	0
Capital expenditures									4	4	8
Intersegment sales and revenues									45	51	35
Segment Profit Loss									(21)	(67)	(274)
Depreciation, Depletion and Amortization									18	23	28
Financial Services Operations
Segment Reporting Information [Line Items]
External sales and revenues, net									135	145	153
Sales and revenues, net									235	241	232
Loss from continuing operations, net of tax									100	98	97
Income tax expense									0	0	0
Interest expense									80	74	71
Equity in income of non-consolidated affiliates									0	0	0
Capital expenditures									2	4	1
Investment Income, Interest									167	175	170
Intersegment sales and revenues									100	96	79
Segment Profit Loss									100	98	97
Depreciation, Depletion and Amortization									50	51	46
Truck
Segment Reporting Information [Line Items]
Sales and revenues, net									5,176	6,845	7,137
Parts
Segment Reporting Information [Line Items]
Sales and revenues, net									2,216	2,399	2,424
Engine
Segment Reporting Information [Line Items]
Sales and revenues, net									583	751	1,092
Financial Services Operations
Segment Reporting Information [Line Items]
Sales and revenues, net									$ 136	$ 145	$ 153