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STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY - Reclassifications out of accumulated other comprehensive income (Details) - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion   $ 18  
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion $ (3)    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax 0 6 $ 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (3) 12 $ (1)
Other Comprehensive Income Defined Benefit Plan Amortization Of Net Actuarial Loss (43) (35)  
Amortization of prior service benefit (29) (17)  
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax (14) (18)  
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax 4 5  
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax (10) (13)  
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax $ (13) $ (1)