DEBT AND CREDIT FACILITIES (Tables)

9 Months Ended

Sep. 30, 2017

DEBT AND CREDIT FACILITIES

Schedule of debt and credit facilities

(unaudited) (millions of dollars)	September 30, 2017	Weighted Average Interest Rate for the Nine Months Ended September 30, 2017		December 31, 2016 (a)	Weighted Average Interest Rate for the Year Ended December 31, 2016
TC PipeLines, LP
Senior Credit Facility due 2021	255	2.34	%	160	1.72	%
2013 Term Loan Facility due October 2022	500	2.26	%	500	1.73	%
2015 Term Loan Facility due October 2020	170	2.15	%	170	1.63	%
4.65% Unsecured Senior Notes due 2021	350	4.65	%(b)	350	4.65	%(b)
4.375% Unsecured Senior Notes due 2025	350	4.375	%(b)	350	4.375	%(b)
3.90 % Unsecured Senior Notes due 2027	500	3.90	%(b)	—	—
GTN
5.29% Unsecured Senior Notes due 2020	100	5.29	%(b)	100	5.29	%(b)
5.69% Unsecured Senior Notes due 2035	150	5.69	%(b)	150	5.69	%(b)
Unsecured Term Loan Facility due 2019	55	1.95	%	65	1.43	%
PNGTS
5.90% Senior Secured Notes due December 2018	36	5.90	%(b)	53	5.90	%(b)
Tuscarora
Unsecured Term Loan due 2020	25	2.18	%	10	1.64	%
3.82% Series D Senior Notes due August 2017	—	3.82	%(b)	12	3.82	%(b)
	2,491			1,920
Less: unamortized debt issuance costs and debt discount	13			9
Less: current portion	51			52
	2,427			1,859

(a) Recast to consolidate PNGTS for all periods presented (Refer to Notes 2 and 6).

(b) Fixed interest rate

Schedule of principal repayments required on debt

(unaudited)
(millions of dollars)
2017	12
2018	45
2019	36
2020	293
2021	605
Thereafter	1,500
	2,491