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DERIVATIVES AND RISK MANAGEMENT (Narrative) (Details) - USD ($)
$ in Millions
Nov. 30, 2018
Nov. 30, 2017
Foreign exchange    
Derivative [Line Items]    
Derivative notional amount $ 178.1 $ 289.5
Commodity    
Derivative [Line Items]    
Derivative notional amount $ 37.8 $ 56.7