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Exchangeable Securities (Tables)
12 Months Ended
Dec. 31, 2019
Exchangeable Securities [Abstract]  
Disclosure of borrowing costs [text block] $350 Million Unsecured Subordinated Debentures
As atDec. 31, 2019
Carrying valueFace valueInterest
Exchangeable debentures – due May 1, 2039326  350  7%