Summary of Significant Accounting Policies - Narrative (Details) $ in Millions	3 Months Ended
	Jan. 31, 2019 USD ($) employees segments	Jan. 31, 2018 USD ($)	Nov. 01, 2018 USD ($)	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)
Accounting Policies [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 27
Selling, General and Administrative Expense	(186)	$ (191)
Increase (Decrease) in Restricted Cash		0
Net Cash Provided by (Used in) Investing Activities	74	15
Cash and Cash Equivalents, Period Increase (Decrease)		(53)
Cash and cash equivalents at beginning of the period				$ 1,445	$ 840
Cash and cash equivalents at end of the period	1,349	787
Sales of Manufactured Products	2,386	1,867
Accounts Receivable, Net, Current	(429)		$ (448)	(456)
Property and equipment, net	(1,275)		(1,261)	(1,370)
Liabilities, Current	(3,651)		(3,805)	(3,807)
Long-term Debt and Capital Lease Obligations	(4,552)		(4,463)	(4,521)
Other Liabilities, Noncurrent	686		709	731
Liabilities	(10,850)		(11,074)	(11,156)
Assets	(7,037)		(7,121)	(7,230)
Debt, Current	(942)		(931)	(946)
Other Liabilities, Current	1,225		1,268	1,255
Less: Intercompany revenues	29	40
Costs of products sold	$ (1,979)	(1,532)
Number Of Segments | segments	4
Goodwill	$ 38			38
Interest expense	(85)	(79)
Income (Loss) Attributable to Parent, before Tax	(2)	(51)
Capital expenditures	44	30
Proceeds from finance lease obligations	6	16
Product Warranty Accrual, Preexisting, Increase (Decrease)	$ (7)	(6)
Document Type	10-Q
Costs and Expenses, Related Party	$ 13	11
Accounts Receivable, Related Parties	16			10
Accounts Payable, Related Parties	37			25
Inventory, Gross	169			154
Income Tax Expense (Benefit)	(19)	15
Stockholders' Equity Attributable to Parent	(3,816)		(3,958)	(3,931)
Inventories, net	(1,211)		(1,019)	(1,110)
Other Assets, Current	291		290	189
Assets, Current	5,074		5,138	5,136
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	123		122	121
Other Assets, Noncurrent	(98)		(110)	(113)
Liabilities and Equity	(7,037)		(7,121)	(7,230)
Other Operating Income (Expense), Net	97	80
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 17	(66)
Unionized Employees Concentration Risk [Member] | Number Of Employees Hourly Workers [Member]
Accounting Policies [Line Items]
Concentration Risk Number Of Employees | employees	8,700
concentration risk number of employees percentage	99.00%
Unionized Employees Concentration Risk [Member] | Number of Employees Salaried Workers [Member]
Accounting Policies [Line Items]
Concentration Risk Number Of Employees | employees	700
concentration risk number of employees percentage	13.00%
North America Truck [Member]
Accounting Policies [Line Items]
Assets	$ (2,031)			(2,085)
Interest expense	0	0
Capital expenditures	31	25
Income Tax Expense (Benefit)	0	0
Accounting Standards Update 2017-07 [Member]
Accounting Policies [Line Items]
Selling, General and Administrative Expense		(31)
Other Operating Income (Expense), Net		31
Under Prior Standard [Domain]
Accounting Policies [Line Items]
Selling, General and Administrative Expense		(222)
Increase (Decrease) in Restricted Cash		46
Net Cash Provided by (Used in) Investing Activities		61
Cash and Cash Equivalents, Period Increase (Decrease)		(7)
Cash and cash equivalents at beginning of the period					706
Cash and cash equivalents at end of the period		699
Other Operating Income (Expense), Net		49
Accounting Standards Update 2016-18 [Member]
Accounting Policies [Line Items]
Increase (Decrease) in Restricted Cash		(46)
Net Cash Provided by (Used in) Investing Activities		(46)
Cash and Cash Equivalents, Period Increase (Decrease)		(46)
Cash and cash equivalents at beginning of the period					$ 134
Cash and cash equivalents at end of the period		$ 88
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Accounting Policies [Line Items]
Sales of Manufactured Products	4
Accounts Receivable, Net, Current	(12)		(8)
Property and equipment, net	(127)		(109)
Liabilities, Current	(15)		(2)
Long-term Debt and Capital Lease Obligations	(55)		(58)
Other Liabilities, Noncurrent	(48)		(22)
Liabilities	(88)		(82)
Assets	(122)		(109)
Debt, Current	(15)		(15)
Other Liabilities, Current	30		13
Costs of products sold	(7)
Interest expense	(1)
Income (Loss) Attributable to Parent, before Tax	4
Income Tax Expense (Benefit)	(1)
Stockholders' Equity Attributable to Parent	(34)		(27)
Inventories, net	(49)		(91)
Other Assets, Current	69		101
Assets, Current	8		2
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent			1
Other Assets, Noncurrent	(3)		(3)
Liabilities and Equity	(122)		$ (109)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	3
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Accounting Policies [Line Items]
Sales of Manufactured Products	2,390
Accounts Receivable, Net, Current	(441)			(456)
Property and equipment, net	(1,402)			(1,370)
Liabilities, Current	(3,636)			(3,807)
Long-term Debt and Capital Lease Obligations	(4,607)			(4,521)
Other Liabilities, Noncurrent	734			731
Liabilities	(10,938)			(11,156)
Assets	(7,159)			(7,230)
Debt, Current	(957)			(946)
Other Liabilities, Current	1,195			1,255
Costs of products sold	(1,986)
Interest expense	(86)
Income (Loss) Attributable to Parent, before Tax	(6)
Income Tax Expense (Benefit)	20
Stockholders' Equity Attributable to Parent	(3,782)			(3,931)
Inventories, net	(1,260)			(1,110)
Other Assets, Current	222			189
Assets, Current	5,066			5,136
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent				121
Other Assets, Noncurrent	(101)			(113)
Liabilities and Equity	(7,159)			$ (7,230)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	14
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations [Member]
Accounting Policies [Line Items]
Extended Product Warranty Accrual	$ 2