Commitments and Contingencies - Narrative (Details) BRL in Millions		1 Months Ended	3 Months Ended					12 Months Ended
	Jul. 16, 2015 USD ($)	Mar. 31, 2014 BRL	Oct. 31, 2015 BRL	Jul. 31, 2015 USD ($) engine	Jan. 31, 2014 BRL	Apr. 30, 2013 USD ($)	Jul. 31, 2010 BRL	Oct. 31, 2015 USD ($) site	Oct. 31, 2015 BRL	Oct. 31, 2015 BRL site	Oct. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Equipment leased to others								$ 613,000,000			$ 677,000,000
Long-term Debt								5,298,000,000
Available stand-by letters of credit and surety bonds								87,000,000
Line of Credit Facility, Current Borrowing Capacity								11,000,000
Line of Credit Facility, Remaining Borrowing Capacity								7,000,000
Purchase commitments								57,000,000
Long Term Purchase Commitment Cancellation Fees								$ 51,000,000
Number of Contaminated Sites | site								2		2
Number of Contaminated Sites in Sao Paulo, Brazil | site								2		2
Accrual for environmental loss contingencies								$ 24,000,000
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 | BRL			BRL 14						BRL 17
Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL			33
Damages from Product Defects [Member]
Loss Contingencies [Line Items]
Notice of Violation, number | engine				7,749
Civil penalties sought, per violation	$ 37,500
California Air Resources Board (CARB) [Member]
Loss Contingencies [Line Items]
Regulatory Penalty				$ 300,000		$ 2,500,000
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Operating Agreement Excess Loss Percentage								10.00%	10.00%
Loss Sharing Agreement, Percentage								9.50%		9.50%
Off Balance Sheet Finance Receivables								$ 1,400,000,000			1,500,000,000
Off Balance Sheet Finance Receivables Related Originations								2,300,000,000
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Equipment leased to others								102,000,000
Manufacturing Operations [Member]
Loss Contingencies [Line Items]
Long-term Debt								3,198,000,000
Manufacturing Operations [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt								111,000,000			$ 184,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt								110,000,000
Pending Litigation [Member] | Disputes [Member]
Loss Contingencies [Line Items]
Damages sought, value								50,000,000
Pending Litigation [Member] | FATMA Notice, Trial [Member] | Penalties [Member]
Loss Contingencies [Line Items]
Damages sought, value							BRL 2	1,000,000
IIAA Vs. Navitrucks [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount								26,000,000
Navitrucks Vs. IIAA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss								$ 30,000,000
Brazil, Brazil Real | International Chamber of Commerce [Member] | Penalties and Interest [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL			BRL 55		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 99
Brazil, Brazil Real | Navitrucks Vs. IIAA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss | BRL										BRL 116