DERIVATIVE INSTRUMENTS (Details 2) (USD $) In Millions, unless otherwise specified	Jul. 31, 2013	Oct. 31, 2012	Jul. 31, 2012
Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 5,891	$ 4,400	$ 3,665
Foreign Exchange Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	3,532	3,999	3,699
Cross-Currency Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	79	78	77
Interest Rate Caps- Purchased
Derivatives Not Designated as Hedging Instruments
Notional amounts	1,795	1,445	1,590
Interest Rate Caps- Sold
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 1,795	$ 1,445	$ 1,590