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Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2016
Variable Interest Entities [Abstract]  
Schedule of Variable Interest Entities [Table Text Block]
As atDecember 31, 2016December 31, 2015
MaximumMaximum
millions of Canadian dollarsTotal assets exposure to lossTotal assets exposure to loss
Unconsolidated VIEs in which Emera has variable interests
NSPML (equity accounted)$ 315$ 577$ 188$ 1,007