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CAPITAL RISK MANAGEMENT (Tables)
 12 Months Ended
Dec. 31, 2018
Capital risk management [Abstract]  
Detailed Information Of Capital [Text Block]
In the management of capital, the Company includes the components of equity, long-term debt, net of cash and cash equivalents, and investments.
 
 
Year ended December 31
(in millions of U.S. dollars)
 2018
2017
CAPITAL (AS DEFINED ABOVE) IS SUMMARIZED AS FOLLOWS
  
Equity
 959.3
 2,139.5
Long-term debt
 780.5
 1,007.7
 
 1,739.8
 3,147.2
Cash and cash equivalents
 (103.7)
 (216.2)
Total
 1,636.1
 2,931.0