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DERIVATIVES AND RISK MANAGEMENT (Narrative) (Details) - USD ($)
$ in Millions
Feb. 28, 2017
Feb. 29, 2016
Foreign exchange    
Derivative [Line Items]    
Derivative notional amount $ 256.4 $ 296.5
Commodity    
Derivative [Line Items]    
Derivative notional amount $ 36.3 $ 30.1