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DERIVATIVES AND RISK MANAGEMENT (Narrative) (Details) - USD ($)
$ in Millions
Nov. 30, 2017
Nov. 30, 2016
Foreign exchange    
Derivative [Line Items]    
Derivative notional amount $ 289.5 $ 265.8
Commodity    
Derivative [Line Items]    
Derivative notional amount $ 56.7 $ 31.2