Commitments and Contingencies - Narrative (Details) R$ in Millions		1 Months Ended		3 Months Ended
	Jul. 16, 2015 USD ($)	Oct. 31, 2016 members	Mar. 31, 2014 BRL (R$)	Jan. 31, 2019 USD ($) dealer	Oct. 31, 2018 USD ($)	Jan. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)	Jul. 31, 2017 USD ($)	Oct. 31, 2016 USD ($) lawsuits plaintiff	Jul. 31, 2014 lawsuits	Jan. 31, 2014 BRL (R$)	Jul. 31, 2010 BRL (R$)	Jul. 31, 2015 engine
Loss Contingencies [Line Items]
Available stand-by letters of credit and surety bonds				$ 95,000,000
Purchase commitments				134,000,000
Long Term Purchase Commitment Cancellation Fees				21,000,000
Accrual for environmental loss contingencies				18,000,000
Damages sought, value				50,000,000			$ 31,000,000
Loss Contingency, Number of Plaintiffs		2							25
Loss Contingency, New Claims Filed, Number | lawsuits									2	17
Notice of Violation, number | engine													7,749
Civil penalties sought, per violation	$ 37,500
Loss Contingency, Overcharge Penalty							88,000,000
Loss Contingency, Damages Sought, Value, Punitive Damages							20,000,000
Legal Fees						$ 1,400,000
Selling, general and administrative expenses				186,000,000		$ 191,000,000
Loss Contingency, Damages Sought							$ 264,000,000
Sao Paulo Groundwater Notice [Member] | Sanctions [Member]
Loss Contingencies [Line Items]
Damages sought, value			R$ 3	1,000,000
International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value				$ 18,000,000
Navitrucks [Member]
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Terms				1
Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value				$ 35,000,000
Loss Contingency, Settlement Agreement, Terms				29	29
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Operating Agreement Excess Loss Percentage				10.00%
Loss Sharing Agreement, Percentage				9.50%
Off Balance Sheet Finance Receivables				$ 1,500,000,000
Off Balance Sheet Finance Receivables Related Originations1				2,600,000,000	$ 2,500,000,000
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				44,000,000	104,000,000
Manufacturing Operations [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt				52,000,000	122,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt				52,000,000	$ 122,000,000
Pending Litigation [Member] | FATMA Notice, Trial [Member] | Penalties [Member]
Loss Contingencies [Line Items]
Damages sought, value				1,000,000								R$ 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
MaxxForce Engine EGR Warranty Litigation [Member]
Loss Contingencies [Line Items]
Selling, general and administrative expenses								$ 31,000,000
Brazil, Brazil Real | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value | R$											R$ 64
Brazil, Brazil Real | Navitrucks [Member]
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Terms				3
Brazil, Brazil Real | Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value | R$											R$ 128
Loss Contingency, Settlement Agreement, Terms				107	107
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 Fleet Owners | dealer				2