RELATED PARTY TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2017

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The following amounts are included in Due to affiliate:

		2017			2016
(millions of Canadian $)	Maturity Date	Outstanding December 31	Effective Interest Rate			Outstanding December 31	Effective Interest Rate
Credit Facility1	Demand	2,551	3.2	%		2,358	2.7	%
		2,551				2,358

1 TCPL has an unsecured $3.0 billion credit facility with TransCanada. Interest on this facility is charged at the prime rate per annum.