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Goodwill (Tables)
12 Months Ended
Dec. 31, 2016
Goodwill [Abstract]  
Schedule of Goodwill [Table Text Block]
23. GOODWILL
The change in goodwill for the year ended December 31 is due to the following:
millions of Canadian dollars 20162015
Balance, January 1$ 264$ 222
Acquisition of TECO Energy as at July 1, 2016 (note 4) 5,771 -
Impairment - -
Change in foreign exchange rate 178 42
Balance, December 31$ 6,213$ 264