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DERIVATIVES Derivative, interest rate swaps (Details) - Interest Rate Swap [Member]
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2020
USD ($)
Jul. 31, 2020
USD ($)
Derivative [Line Items]    
Other Comprehensive Loss, MTM Adjustment into AOCI $ 3 $ 7
Derivative Liability, Notional Amount $ 600 $ 600