FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012	Apr. 30, 2012
Fair Values of Financial Instruments
Financing receivables - net	$ 22,744.9	$ 22,159.1	$ 19,452.7
Financing receivables securitized - net	3,788.3	3,617.6	3,116.0
Short-term securitization borrowings	3,788.4	3,574.8	3,033.3
Long-term borrowings	21,752.9	22,453.1	18,719.4
Fair Value, Level 2
Fair Values of Financial Instruments
Short-term securitization borrowings	3,794.0	3,584.0	3,041.0
Long-term borrowings due within one year	6,004	5,065	5,606
Long-term borrowings	22,655.0	23,675.0	19,847.0
Fair Value, Level 3
Fair Values of Financial Instruments
Financing receivables - net	22,796.0	22,244.0	19,496.0
Financing receivables securitized - net	3,785.0	3,615.0	3,124.0
Carrying Value
Fair Values of Financial Instruments
Financing receivables - net	22,745.0	22,159.0	19,453.0
Financing receivables securitized - net	3,788.0	3,618.0	3,116.0
Short-term securitization borrowings	3,788.0	3,575.0	3,033.0
Long-term borrowings due within one year	5,919	4,985	5,544
Long-term borrowings	21,753.0	22,453.0	18,719.0
Equipment Operations
Fair Values of Financial Instruments
Financing receivables - net	12.0	11.5	14.0
Long-term borrowings	4,925.2	5,444.9	3,174.9
Equipment Operations \| Fair Value, Level 2
Fair Values of Financial Instruments
Long-term borrowings due within one year	939	194	218
Long-term borrowings	5,626.0	6,237.0	3,962.0
Equipment Operations \| Carrying Value
Fair Values of Financial Instruments
Long-term borrowings due within one year	911	195	223
Long-term borrowings	4,925.0	5,445.0	3,175.0
Financial Services
Fair Values of Financial Instruments
Financing receivables - net	22,732.8	22,147.5	19,438.7
Financing receivables securitized - net	3,788.3	3,617.6	3,116.0
Short-term securitization borrowings	3,788.4	3,574.8	3,033.3
Long-term borrowings	16,827.7	17,008.2	15,544.5
Financial Services \| Fair Value, Level 2
Fair Values of Financial Instruments
Long-term borrowings due within one year	5,065	4,871	5,388
Long-term borrowings	17,029.0	17,438.0	15,885.0
Financial Services \| Carrying Value
Fair Values of Financial Instruments
Long-term borrowings due within one year	5,008	4,790	5,321
Long-term borrowings	$ 16,828.0	$ 17,008.0	$ 15,544.0

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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.

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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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Carrying amount of long-term debt, net of 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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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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