FAIR VALUE MEASUREMENTS (Details 2) (USD $) In Millions, unless otherwise specified	Jan. 31, 2015	Oct. 31, 2014	Jan. 31, 2014
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	$ 493.8us-gaap_AvailableForSaleSecurities	$ 1,215.1us-gaap_AvailableForSaleSecurities	$ 1,438.4us-gaap_AvailableForSaleSecurities
Derivative assets	625	353	418
Derivative liabilities	129	110	168
Transfer from Level 1 to Level 2, assets	0		0
Transfer from Level 2 to Level 1, assets	0		0
Transfer from Level 1 to Level 2, liabilities	0		0
Transfer from Level 2 to Level 1, liabilities	0		0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 1 and 2
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	494.0	1,215.0	1,438.0
Total assets	1,119	1,568	1,856
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 1 and 2 \| U.S. Government Debt Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	179.0	808.0	1,113.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 1 \| Equity Fund
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	45.0	45.0	20.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 1 \| Fixed Income Fund
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities		10.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 1 \| U.S. Government Debt Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	129.0	741.0	1,046.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Total liabilities	129	110	168
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Interest Rate Contracts \| Other Assets
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	478	319	329
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Interest Rate Contracts \| Accounts Payable and Accrued Expenses
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative liabilities	80	81	144
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Foreign Exchange Contracts \| Other Assets
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	125	18	70
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Foreign Exchange Contracts \| Accounts Payable and Accrued Expenses
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative liabilities	49	29	24
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Cross-Currency Interest Rate Contracts \| Other Assets
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	22	16	19
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Municipal Debt Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	29.0	34.0	36.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Corporate Debt Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	134.0	172.0	147.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis \| Level 2 \| Mortgage-Backed Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	$ 107.0	$ 146.0	$ 122.0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Fair value of financial and nonfinancial obligations.

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