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DERIVATIVE INSTRUMENTS (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2014
Jan. 31, 2014
Interest Rate Contracts
Cash Flow Hedges Member
Oct. 31, 2013
Interest Rate Contracts
Cash Flow Hedges Member
Jan. 31, 2013
Interest Rate Contracts
Cash Flow Hedges Member
Jan. 31, 2014
Cross-Currency Interest Rate Contracts
Cash Flow Hedges Member
Oct. 31, 2013
Cross-Currency Interest Rate Contracts
Cash Flow Hedges Member
Jan. 31, 2013
Cross-Currency Interest Rate Contracts
Cash Flow Hedges Member
Cash Flow Hedges              
Notional amount of cash flow hedge derivatives   $ 3,600 $ 3,100 $ 3,100 $ 70 $ 816 $ 923
Cash flow hedge loss recorded in OCI to be reclassified within twelve months 5            
Maximum maturity of cash flow hedge interest rate and cross-currency interest rate contracts 56 months            
Gains or losses reclassified from OCI to earnings $ 0