DERIVATIVE INSTRUMENTS (Details 2) (USD $) In Millions, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012	Apr. 30, 2012
Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 5,050	$ 4,400	$ 2,977
Foreign Exchange Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	4,495	3,999	3,611
Cross-Currency Interest Rate Contracts
Derivatives Not Designated as Hedging Instruments
Notional amounts	79	78	71
Interest Rate Caps- Purchased
Derivatives Not Designated as Hedging Instruments
Notional amounts	1,434	1,445	1,345
Interest Rate Caps- Sold
Derivatives Not Designated as Hedging Instruments
Notional amounts	$ 1,434	$ 1,445	$ 1,345