Segment Reporting - Summary of Segment Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018	Nov. 01, 2018	Oct. 31, 2018
Segment Reporting Information [Line Items]
External sales and revenues, net	$ 3,042	$ 2,606	$ 8,471	$ 6,933
Segment Assets	7,294		7,294		$ 7,121	$ 7,230
Intersegment sales and revenues	0	0	0	0
Sales and revenues, net	3,042	2,606	8,471	6,933
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	156	170	119	152
Income Tax Expense (Benefit)	29	3	9	25
Segment Profit Loss	185	173	128	177
Depreciation, Depletion and Amortization	47	51	144	160
Interest expense	76	82	243	240
Equity in income of non-consolidated affiliates	1	0	4	0
Capital expenditures	24	26	90	79
North America Truck [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	2,342	1,894	6,405	4,810
Segment Assets	1,942		1,942			2,085
Intersegment sales and revenues	45	22	75	61
Sales and revenues, net	2,342		6,405
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	167	165	183	200
Income Tax Expense (Benefit)	0	0	0	0
Segment Profit Loss	167	165	183	200
Depreciation, Depletion and Amortization	26	31	78	100
Interest expense	0	0	0	0
Equity in income of non-consolidated affiliates	0	1	3	2
Capital expenditures	17	19	69	74
North America Parts [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	569	603	1,693	1,768
Segment Assets	686		686			636
Intersegment sales and revenues	2	2	5	6
Sales and revenues, net	569		1,693
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	149	144	437	413
Income Tax Expense (Benefit)	0	0	0	0
Segment Profit Loss	149	144	437	413
Depreciation, Depletion and Amortization	1	2	4	5
Interest expense	0	0	0	0
Equity in income of non-consolidated affiliates	1	1	2	2
Capital expenditures	2	0	3	1
Global Operations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	82	68	223	229
Segment Assets	322		322			331
Intersegment sales and revenues	8	21	27	38
Sales and revenues, net	82		223
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	1	4	10	(2)
Income Tax Expense (Benefit)	0	0	0	0
Segment Profit Loss	1	4	10	(2)
Depreciation, Depletion and Amortization	3	3	7	8
Interest expense	0	0	0	0
Equity in income of non-consolidated affiliates	0	(2)	(1)	(4)
Capital expenditures	1	1	2	2
Financial Services Operations
Segment Reporting Information [Line Items]
Interest Revenue (Expense), Net	53	46	161	131
External sales and revenues, net	46	40	141	118
Segment Assets	3,010		3,010			2,648
Intersegment sales and revenues	28	25	85	69
Sales and revenues, net	46		141
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	30	23	93	62
Income Tax Expense (Benefit)	0	0	0	0
Segment Profit Loss	30	23	93	62
Depreciation, Depletion and Amortization	16	14	48	41
Interest expense	27	22	83	64
Equity in income of non-consolidated affiliates	0	0	0	0
Capital expenditures	0	1	2	1
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	3	1	9	8
Segment Assets	1,334		1,334			$ 1,530
Intersegment sales and revenues	(83)	(70)	(192)	(174)
Sales and revenues, net	3		9
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	(191)	(166)	(604)	(521)
Income Tax Expense (Benefit)	(29)	(3)	(9)	(25)
Segment Profit Loss	(162)	(163)	(595)	(496)
Depreciation, Depletion and Amortization	1	1	7	6
Interest expense	49	60	160	176
Equity in income of non-consolidated affiliates	0	0	0	0
Capital expenditures	$ 4	$ 5	$ 14	$ 1