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DERIVATIVE INSTRUMENTS (Details 6) - USD ($)
$ in Millions
Jul. 31, 2015
Oct. 31, 2014
Jul. 31, 2014
DERIVATIVE INSTRUMENTS      
Fair value of derivatives with credit-risk-related contingent features in a liability position $ 60 $ 57 $ 76
Derivative Assets      
Gross amounts recognized 425 353 348
Netting arrangements (78) (76) (85)
Collateral received (1) (5) (5)
Net amount 346 272 258
Derivative Liabilities      
Gross amounts recognized 109 110 134
Netting arrangements (78) (76) (85)
Net amount $ 31 $ 34 $ 49