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CHANGES IN ACCOUNTING POLICY (Details) - Accounting tandards Update 2015 03 [Member]
$ in Millions
Dec. 31, 2015
USD ($)
decrease in Other assets [Member]  
Effect of New Accounting Policy on Equity Or Net Assets $ 41.5
decrease in long-term debt [Member]  
Effect of New Accounting Policy on Equity Or Net Assets $ 41.5