Commitments and Contingencies - Narrative (Details) BRL in Millions		1 Months Ended		3 Months Ended				9 Months Ended
	Jul. 16, 2015 USD ($)	Mar. 31, 2014 BRL	Jan. 31, 2014 dealer	Jul. 31, 2015 USD ($) engine site	Jan. 31, 2014 BRL	Apr. 30, 2013 USD ($)	Jul. 31, 2010 BRL	Jul. 31, 2015 USD ($) engine site	Jul. 31, 2015 BRL engine site	Oct. 31, 2014 USD ($)	Apr. 30, 2012 engine
Loss Contingencies [Line Items]
Available stand-by letters of credit and surety bonds				$ 88,000,000				$ 88,000,000
Line of Credit Facility, Current Borrowing Capacity				11,000,000				11,000,000
Line of Credit Facility, Remaining Borrowing Capacity				7,000,000				7,000,000
Purchase commitments				$ 58,000,000				58,000,000
Long Term Purchase Commitment Cancellation Fees								$ 59,000,000
Number of Contaminated Sites | site				2				2	2
Number of Contaminated Sites in Sao Paulo, Brazil | site				2				2	2
Accrual for environmental loss contingencies				$ 21,000,000				$ 21,000,000
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 64
Loss Contingency, Number of Plaintiffs | dealer			4
Navitrucks [Member] | Alleged Unfulfilled Promises and Injury to Reputation [Member]
Loss Contingencies [Line Items]
Damages sought, value | BRL					BRL 128
Damages from Product Defects [Member]
Loss Contingencies [Line Items]
Notice of Violation, number | engine				7,750				7,750	7,750		7,600
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%
Loss Sharing Agreement, Percentage				9.50%				9.50%	9.50%
Off Balance Sheet Finance Receivables				$ 1,700,000,000				$ 1,700,000,000		$ 1,500,000,000
Off Balance Sheet Finance Receivables Related Originations				2,300,000,000				$ 2,300,000,000
Minimum [Member]
Loss Contingencies [Line Items]
Historical losses on finance receivables, measured as percentage of average balance of related finance receivable								0.30%
Maximum [Member]
Loss Contingencies [Line Items]
Historical losses on finance receivables, measured as percentage of average balance of related finance receivable								2.10%
G E Operating Agreement [Member]
Loss Contingencies [Line Items]
Equipment leased to others				119,000,000				$ 119,000,000
Manufacturing Operations [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt				129,000,000				129,000,000		$ 184,000,000
Manufacturing Operations [Member] | G E Operating Agreement [Member] | Financed lease obligations [Member]
Loss Contingencies [Line Items]
Long-term Debt				128,000,000				128,000,000
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				1,000,000			BRL 2
IIAA Vs. Navitrucks [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount				22,000,000				22,000,000	BRL 73
Navitrucks Vs. IIAA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss				$ 57,000,000				$ 57,000,000	BRL 195