Commitments and Contingencies - Narrative (Details) BRL in Millions							1 Months Ended	3 Months Ended				6 Months Ended
	Nov. 16, 2016	Oct. 21, 2016 lawsuits plaintiff	Sep. 22, 2016 plaintiff	Jun. 01, 2016 USD ($) bus	Jul. 16, 2015 USD ($)	Jul. 07, 2014 lawsuits	Mar. 31, 2014 BRL	Apr. 30, 2017 USD ($)	Oct. 31, 2016 USD ($)	Oct. 31, 2016 BRL	Jan. 31, 2014 BRL	Apr. 30, 2017 USD ($) dealer	Apr. 30, 2017 BRL	Jul. 31, 2015 engine
Loss Contingencies [Line Items]
Available stand-by letters of credit and surety bonds								$ 85,000,000				$ 85,000,000
Purchase commitments								22,000,000				22,000,000
Long Term Purchase Commitment Cancellation Fees												40,000,000
Accrual for environmental loss contingencies								20,000,000				$ 20,000,000
Sao Paulo Groundwater Notice [Member] | Sanctions [Member]
Loss Contingencies [Line Items]
Damages sought, value							BRL 3	1,000,000
International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value								20,000,000
Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value								$ 40,000,000
Damages from Product Defects [Member]
Loss Contingencies [Line Items]
Notice of Violation, number | engine														7,749
Damages from Product Defects [Member] | EPA [Member]
Loss Contingencies [Line Items]
Civil penalties sought, per violation					$ 37,500
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Operating Agreement Excess Loss Percentage												10.00%
Loss Sharing Agreement, Percentage								9.50%				9.50%	9.50%
Off Balance Sheet Finance Receivables								$ 1,400,000,000	$ 1,500,000,000			$ 1,400,000,000
Off Balance Sheet Finance Receivables Related Originations1								2,300,000,000	2,400,000,000			2,300,000,000
Minimum [Member] | Damages from Product Defects [Member] | EPA [Member]
Loss Contingencies [Line Items]
Civil penalties sought, per violation					2,000,000
Maximum [Member] | Damages from Product Defects [Member] | EPA [Member]
Loss Contingencies [Line Items]
Civil penalties sought, per violation					$ 291,000,000
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Equipment leased to others								93,000,000	48,000,000			93,000,000
Manufacturing Operations [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt								102,000,000	52,000,000			102,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt								102,000,000	51,000,000			102,000,000
Pending Litigation [Member] | FATMA Notice, Trial [Member] | Penalties [Member]
Loss Contingencies [Line Items]
Damages sought, value								1,000,000		BRL 2
Profit Sharing Litigation [Member] | Pending Litigation [Member] | Disputes [Member]
Loss Contingencies [Line Items]
Damages sought, value									$ 50,000,000
Retiree Health Care [Member]
Loss Contingencies [Line Items]
Damages sought, value												26,000,000
Loss Contingency, Number of Potential Additional Plaintiffs | plaintiff		1,000
Loss Contingency, Number of Plaintiffs | plaintiff		2
Loss Contingency, New Claims Filed, Number | lawsuits		2
MaxxForce Engine EGR Warranty Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Termination Period for Appeal	15 days
Loss Contingency, Number of Plaintiffs | plaintiff			25
Loss Contingency, New Claims Filed, Number | lawsuits						17
IIAA Vs. Navitrucks [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount								45,000,000				$ 45,000,000
IIAA Vs. Navitrucks [Member] | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value								25,000,000
IIAA Vs. Navitrucks [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Calculation Period												1 year
Navitrucks Vs. IIAA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss								$ 48,000,000				$ 48,000,000
Polar Express School Bus and Lakeview Bus Lines v. Navistar, Inc and IC Bus LLC [Member] | Pending Litigation [Member] | Damages from Product Defects [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Buses | bus				40
Loss Contingency, Damages Sought, Value, Compensatory Damages				$ 7,000,000
Loss Contingency, Damages Sought, Value, Punitive Damages				$ 50,000,000
Brazil, Brazil Real | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL											BRL 64
Brazil, Brazil Real | Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL											BRL 128
Brazil, Brazil Real | IIAA Vs. Navitrucks [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount | BRL													BRL 145
Brazil, Brazil Real | IIAA Vs. Navitrucks [Member] | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL										BRL 81
Brazil, Brazil Real | Navitrucks Vs. IIAA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss | BRL													BRL 153
International Indústria de Motores da América do Sul Ltda [Member] | Other Cases Vs. International Indústria de Motores da América do Sul Ltda [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Truck Dealers | dealer												2
Loss Contingency, Number of Truck Fleet Owners | dealer												2