Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended
	Jan. 31, 2018 USD ($) employees segments	Jan. 31, 2017 USD ($)	Oct. 31, 2017 USD ($)
Accounting Policies [Line Items]
Less: Intercompany revenues	$ 40,000,000	$ 15,000,000
Costs of products sold	1,532,000,000	1,370,000,000
Net loss attributable to Navistar International Corporation	$ (73,000,000)	(62,000,000)
Number Of Segments | segments	4
Goodwill	$ 38,000,000		$ 38,000,000
Sales of manufactured products, net	1,867,000,000	1,629,000,000
Interest expense	79,000,000	82,000,000
Capital expenditures	30,000,000	46,000,000
Proceeds from finance lease obligations	16,000,000	8,000,000
Product Warranty Accrual, Preexisting, Increase (Decrease)	$ (6,000,000)	(17,000,000)
Document Type	10-Q
Costs and Expenses, Related Party	$ 11,000,000	0
Accounts Receivable, Related Parties	12,000,000		13,000,000
Accounts Payable, Related Parties	$ 13,000,000		5,000,000
Unionized Employees Concentration Risk [Member] | Number Of Employees Hourly Workers [Member]
Accounting Policies [Line Items]
Concentration Risk Number Of Employees | employees	6,800
concentration risk number of employees percentage	96.00%
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]
Interest expense	$ 0	0
Capital expenditures	25,000,000	43,000,000
Extended Warranty Programs [Member]
Accounting Policies [Line Items]
Deferred Revenue, Revenue Recognized	29,000,000	$ 34,000,000
Deferred Revenue	$ 256,000,000		$ 271,000,000