JUNIOR SUBORDINATED NOTES (Tables)

12 Months Ended

Dec. 31, 2016

Junior Subordinated Notes [Abstract]

Schedule of Junior Subordinated Notes

		2016			2015
Outstanding loan amount	Maturity Date	Outstanding at December 31	Effective Interest Rate		Outstanding at December 31	Effective Interest Rate
(millions of Canadian $, unless otherwise noted)
TRANSCANADA PIPELINES LIMITED
U.S. (2016 and 2015 – US$1,000)1	2067	1,342	6.4	%	1,382	6.4	%
U.S. (2016 and 2015 – US$742)1, 2	2075	996	5.5	%	1,027	5.3	%
U.S. (2016 – US$1,186)1, 2	2076	1,593	6.2	%	—	—
		3,931			2,409

1 The Junior subordinated notes are subordinated in right of payment to existing and future senior indebtedness or other obligations of TCPL.

2 The Junior subordinated notes were issued to TransCanada Trust (the Trust), a financing trust subsidiary wholly-owned by TCPL. While the obligations of the Trust are fully and unconditionally guaranteed by TCPL on a subordinated basis, the Trust is not consolidated in TransCanada's financial statements since TCPL does not have a variable interest in the Trust and the only substantive assets of the Trust are junior subordinated notes of TCPL.