DERIVATIVE INSTRUMENTS (Details 3) (Not Designated as Hedging Instruments, USD $) In Millions, unless otherwise specified	Jul. 31, 2014	Oct. 31, 2013	Jul. 31, 2013
Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 6,303	$ 5,627	$ 5,891
Foreign Exchange Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	3,578	3,800	3,532
Cross-Currency Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	78	85	79
Interest Rate Caps Purchased
Derivatives Not Designated as Hedging Instruments
Notional amounts	1,858	1,641	1,795
Interest Rate Caps Sold
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 1,858	$ 1,641	$ 1,795