DEBT AND CREDIT FACILITIES (Tables)

3 Months Ended

Mar. 31, 2019

DEBT AND CREDIT FACILITIES

Schedule of debt and credit facilities

		Weighted Average				Weighted Average
		Interest Rate for the				Interest Rate for the
(unaudited)		Three Months Ended			December 31,	Year Ended
(millions of dollars)	March 31, 2019	March 31, 2019			2018	December 31, 2018
TC PipeLines, LP
Senior Credit Facility due 2021	—	3.61	%		40	3.14	%
2013 Term Loan Facility due 2022	500	3.73	%		500	3.23	%
4.65% Unsecured Senior Notes due 2021	350	4.65	%	(a)	350	4.65	%	(a)
4.375% Unsecured Senior Notes due 2025	350	4.375	%	(a)	350	4.375	%	(a)
3.90 % Unsecured Senior Notes due 2027	500	3.90	%	(a)	500	3.90	%	(a)
GTN
5.29% Unsecured Senior Notes due 2020	100	5.29	%	(a)	100	5.29	%	(a)
5.69% Unsecured Senior Notes due 2035	150	5.69	%	(a)	150	5.69	%	(a)
Unsecured Term Loan Facility due 2019	35	3.45	%		35	2.93	%
PNGTS
Revolving Credit Facility due 2023	27	3.75	%		19	3.55	%
Tuscarora
Unsecured Term Loan due 2020	24	3.63	%		24	3.10	%
North Baja
Unsecured Term Loan due 2021	50	3.56	%		50	3.54	%
	2,086				2,118
Less: unamortized debt issuance costs and debt discount	10				10
Less: current portion	36				36
	2,040				2,072

(a)Fixed interest rate

Schedule of principal repayments required on debt

(unaudited)
(millions of dollars)	Principal payments
2019	36
2020	123
2021	400
2022	500
2023	27
Thereafter	1,000
	2,086