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DERIVATIVE INSTRUMENTS (Details 5) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Not designated as hedges, gains (losses) $ 384 $ 107 $ 49
Interest Rate Contracts | OCI      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Cash flow hedges, recognized in OCI, effective portion, gains (losses) (16) (10) (15)
Interest Rate Contracts | Interest Expense      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Fair value hedges, gains (losses) 277 155 (89)
Not designated as hedges, gains (losses) (17) 3 (6)
Interest Rate Contracts | Interest Expense | Cash Flow Hedges Member      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Cash flow hedges, reclassified from OCI, effective portion, gains (losses) (12) (13) (22)
Foreign Exchange Contracts | OCI      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Cash flow hedges, recognized in OCI, effective portion, gains (losses) 4 (4) 58
Foreign Exchange Contracts | Cost of Sales      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Not designated as hedges, gains (losses) 97 25 35
Foreign Exchange Contracts | Other Operating Expense      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Not designated as hedges, gains (losses) 304 79 20
Foreign Exchange Contracts | Other Operating Expense | Cash Flow Hedges Member      
Classification and gains (losses) including accrued interest expense related to derivative instruments      
Cash flow hedges, reclassified from OCI, effective portion, gains (losses) $ 4 $ (6) $ 49