DERIVATIVE INSTRUMENTS (Details 3) (USD $) In Millions, unless otherwise specified	Jan. 31, 2012	Oct. 31, 2011	Jan. 31, 2011
Fair Value of Derivative Instruments
Total derivative assets	$ 584	$ 485	$ 379
Total derivative liabilities	189	168	126
Designated as Hedging Instruments | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	499	404	332
Designated as Hedging Instruments | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	47	20	83
Designated as Hedging Instruments | Interest Rate Contracts | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	494	404	332
Designated as Hedging Instruments | Interest Rate Contracts | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	3	13	21
Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	5
Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	44	7	62
Not Designated as Hedging Instruments | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	85	81	47
Not Designated as Hedging Instruments | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	142	148	43
Not Designated as Hedging Instruments | Interest Rate Contracts | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	75	67	33
Not Designated as Hedging Instruments | Interest Rate Contracts | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	55	48	15
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	8	12	12
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	86	100	26
Not Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Other Assets
Fair Value of Derivative Instruments
Total derivative assets	2	2	2
Not Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Accounts Payable and Accrued Expenses
Fair Value of Derivative Instruments
Total derivative liabilities	$ 1		$ 2