Commitments and Contingencies - Narrative (Details) BRL in Millions						1 Months Ended	3 Months Ended				9 Months Ended
	Nov. 16, 2016	Oct. 21, 2016 plaintiff lawsuits	Sep. 22, 2016 plaintiff	Jul. 16, 2015 USD ($)	Jul. 07, 2014 lawsuits	Mar. 31, 2014 BRL	Jul. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)	Oct. 31, 2016 BRL	Jan. 31, 2014 BRL	Jul. 31, 2017 USD ($) dealer	Apr. 30, 2017 USD ($)	Jul. 31, 2015 engine
Loss Contingencies [Line Items]
Available stand-by letters of credit and surety bonds							$ 89,000,000				$ 89,000,000
Purchase commitments							21,000,000				21,000,000
Long Term Purchase Commitment Cancellation Fees											37,000,000
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							$ 41,000,000
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%
Off Balance Sheet Finance Receivables							$ 1,400,000,000	$ 1,500,000,000			$ 1,400,000,000
Off Balance Sheet Finance Receivables Related Originations1								2,400,000,000				$ 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							114,000,000	48,000,000			114,000,000
Manufacturing Operations [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt							127,000,000	52,000,000			127,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt							127,000,000	51,000,000			127,000,000
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] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Calculation Period											1 year
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
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