Commitments and Contingencies - Narrative (Details) R$ in Millions												1 Months Ended			3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 03, 2019 USD ($)	Aug. 14, 2019 USD ($)	Jun. 03, 2019 BRL (R$)	Apr. 30, 2019 USD ($)	Mar. 28, 2019 USD ($)	Mar. 01, 2019 USD ($)	Mar. 01, 2019 BRL (R$)	Aug. 23, 2018 BRL (R$)	Dec. 01, 2017 USD ($)	Aug. 10, 2017 USD ($)	Jul. 16, 2015 USD ($)	Aug. 31, 2017 USD ($)	Oct. 31, 2016 members	Mar. 31, 2014 BRL (R$)	Oct. 31, 2019 USD ($)	Oct. 31, 2019 BRL (R$)	Jul. 31, 2018 USD ($)	Oct. 31, 2016 USD ($) lawsuits	Jul. 31, 2014 lawsuits	Jan. 31, 2014 USD ($)	Jul. 31, 2010 BRL (R$)	Jul. 31, 2018 USD ($)	Oct. 31, 2019 USD ($) dealer	Oct. 31, 2019 BRL (R$) dealer	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)	Jul. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Gain from Settlement, Gross																							$ 85,000,000
Selling, general and administrative expenses																							934,000,000		$ 828,000,000	$ 751,000,000
Loss Contingency, Civil Penalty Sought, Per Violation											$ 37,500
Loss Contingency, Damages Sought, Value										$ 31,000,000
Loss Contingency, Number of Plaintiffs | members													2
Loss Contingency, New Claims Filed, Number | lawsuits																		2	17
Equipment leased to others															$ 562,000,000								562,000,000		665,000,000
Long-term Debt															5,188,000,000								5,188,000,000
Available stand-by letters of credit and surety bonds															97,000,000								97,000,000
Purchase commitments															125,000,000								125,000,000
Long Term Purchase Commitment Cancellation Fees																							28,000,000
Accrual for environmental loss contingencies															20,000,000								20,000,000
Gain from Settlement, Net																							70,000,000
Loss Contingency, Damages Sought, Value, Punitive Damages										$ 20,000,000
Legal Fees		$ 1,000,000							$ 1,000,000
Loss Contingency, Overcharge Penalty												$ 88,000,000
Treble Damages and Penalties												$ 264,000,000
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Off Balance Sheet Finance Receivables															1,600,000,000								1,600,000,000		1,500,000,000
Off Balance Sheet Finance Receivables Related Originations1															2,700,000,000								2,700,000,000		2,500,000,000
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Equipment leased to others															51,000,000								51,000,000		104,000,000
Manufacturing Operations [Member]
Loss Contingencies [Line Items]
Long-term Debt															2,932,000,000								2,932,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt															60,000,000								60,000,000		$ 122,000,000
Sao Paulo Groundwater Notice [Member] | Sanctions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value | R$														R$ 3										R$ 1
Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value						$ 27,000,000																	32,000,000
International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																							16,000,000
Damages from Product Defects [Member] | EPA [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Civil Penalty Sought, Per Violation											2,000,000
Damages from Product Defects [Member] | EPA [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Civil Penalty Sought, Per Violation											$ 291,000,000
Retiree Health Care [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																						$ 26,000,000
MaxxForce Engine EGR Warranty Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual, Period Increase (Decrease)				$ 32,000,000
Selling, general and administrative expenses		$ 31,000,000															$ 7,749
Common Fund, Balance															135,000,000								135,000,000
Litigation Settlement, Amount Awarded to Other Party				$ 159,000,000
MaxxForce Engine EGR Warranty Litigation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Common Fund, Allocation Between Contribution Types															35,000,000								35,000,000
CARB [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value					$ 2,000,000
Loss Contingency Accrual																											$ 2,000,000
Pending Litigation [Member] | Fatma Notice Trial [Member] | Penalties [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																					R$ 2		$ 1,000,000
Pending Litigation [Member] | Profit Sharing Litigation [Member] | Disputes [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																		$ 50,000,000
Pending Litigation [Member] | Other Cases Vs. International Indústria de Motores da América do Sul Ltda [Member] | International Indústria de Motores da América do Sul Ltda [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Truck Fleet Owners | dealer																							2	2
Subsequent Event [Member] | Single Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 1,280,000,000
Subsequent Event [Member] | Single Damages, Chassis [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	1,125,000,000
Subsequent Event [Member] | Single Damage, Engine [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	36,400,000
Subsequent Event [Member] | Relator’s ISS Claim, Single Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	118,700,000
Subsequent Event [Member] | Treble Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 3,840,000,000
Brazil, Brazil Real
Loss Contingencies [Line Items]
Payments for Legal Settlements																							$ 3,000,000
Brazil, Brazil Real | Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value			R$ 131				R$ 107													$ 128,000,000
Gain (Loss) Related to Litigation Settlement | R$																R$ 107
Brazil, Brazil Real | Navitrucks [Member] | Reimbursement of Legal Fees [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value | R$							R$ 3
Brazil, Brazil Real | IIAA [Member] | costs of arbitral proceedings [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value | R$								R$ 6
Brazil, Brazil Real | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																				$ 64,000,000
United States of America, Dollars
Loss Contingencies [Line Items]
Payments for Legal Settlements																							1,000,000
United States of America, Dollars | Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																							33,000,000
Gain (Loss) Related to Litigation Settlement															27,000,000
United States of America, Dollars | Navitrucks [Member] | Reimbursement of Legal Fees [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																							1,000,000
United States of America, Dollars | IIAA [Member] | costs of arbitral proceedings [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value																							1,000,000
Cash [Member] | MaxxForce Engine EGR Warranty Litigation [Member]
Loss Contingencies [Line Items]
Common Fund, Contribution															85,000,000								85,000,000
Rebate [Member] | MaxxForce Engine EGR Warranty Litigation [Member]
Loss Contingencies [Line Items]
Common Fund, Contribution															$ 50,000,000								$ 50,000,000