FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014	Apr. 30, 2014
Fair Values of Financial Instruments
Financing receivables - net	$ 24,745.8	$ 27,422.2	$ 25,496.1
Financing receivables securitized - net	4,741.1us-gaap_LoansPledgedAsCollateral	4,602.3us-gaap_LoansPledgedAsCollateral	4,345.4us-gaap_LoansPledgedAsCollateral
Short-term securitization borrowings	4,702.7us-gaap_SecuredDebt	4,558.5us-gaap_SecuredDebt	4,329.5us-gaap_SecuredDebt
Long-term borrowings	23,622.8us-gaap_LongTermDebtNoncurrent	24,380.7us-gaap_LongTermDebtNoncurrent	23,166.9us-gaap_LongTermDebtNoncurrent
Fair Value, Level 2
Fair Values of Financial Instruments
Short-term securitization borrowings	4,707.0	4,562.0	4,333.0
Long-term borrowings due within one year	5,135	4,976	4,533
Long-term borrowings	24,259.0	24,981.0	23,729.0
Fair Value, Level 3
Fair Values of Financial Instruments
Financing receivables - net	24,632.0	27,337.0	25,383.0
Financing receivables securitized - net	4,716.0	4,573.0	4,308.0
Carrying Value
Fair Values of Financial Instruments
Financing receivables - net	24,746.0	27,422.0	25,496.0
Financing receivables securitized - net	4,741.0	4,602.0	4,345.0
Short-term securitization borrowings	4,703.0	4,559.0	4,330.0
Long-term borrowings due within one year	5,164	4,973	4,521
Long-term borrowings	23,623.0	24,381.0	23,167.0
Equipment Operations
Fair Values of Financial Instruments
Financing receivables - net	8.7	18.5	13.5
Long-term borrowings	4,488.9	4,642.5	4,816.7
Equipment Operations \| Fair Value, Level 2
Fair Values of Financial Instruments
Long-term borrowings due within one year	264	233	128
Long-term borrowings	4,994.0	5,095.0	5,181.0
Equipment Operations \| Carrying Value
Fair Values of Financial Instruments
Long-term borrowings due within one year	280	243	130
Long-term borrowings	4,489.0	4,643.0	4,817.0
Financial Services
Fair Values of Financial Instruments
Financing receivables - net	24,737.1	27,403.7	25,482.6
Financing receivables securitized - net	4,741.1	4,602.3	4,345.4
Short-term securitization borrowings	4,702.7	4,558.5	4,329.5
Long-term borrowings	19,133.9	19,738.2	18,350.2
Financial Services \| Fair Value, Level 2
Fair Values of Financial Instruments
Long-term borrowings due within one year	4,871	4,743	4,405
Long-term borrowings	19,265.0	19,886.0	18,548.0
Financial Services \| Carrying Value
Fair Values of Financial Instruments
Long-term borrowings due within one year	4,884	4,730	4,391
Long-term borrowings	$ 19,134.0	$ 19,738.0	$ 18,350.0

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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