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Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2019
Financial Instruments [Abstract] |
Summary of long-term debt |
|  | 2019 |  |  | 2018 |
Canadian dollar denominated debt, unsecured |  |  |  |
Bank credit facilities |  | $ | 1,688 |  |  | $ | 831 |
Medium-term notes |  |  |  |  |
3.05% debentures due June 19, 2019 |  | — |  |  | 500 |
2.60% debentures due December 3, 2019 |  | — |  |  | 500 |
2.05% debentures due June 1, 2020 |  | 900 |  |  | 900 |
2.89% debentures due August 14, 2020 |  | 1,000 |  |  | 1,000 |
3.31% debentures due February 11, 2022 |  | 1,000 |  |  | 1,000 |
3.55% debentures due June 3, 2024 |  | 500 |  |  | 500 |
3.42% debentures due December 1, 2026 |  | 600 |  |  | 600 |
4.85% debentures due May 30, 2047 |  | 300 |  |  | 300 |
|  | 5,988 |  |  | 6,131 |
US dollar denominated debt, unsecured |  |  |  |
Bank credit facilities (December 31, 2019 – US$3,745 million; December 31, 2018 – US$2,954 million) |  | 4,855 |  |  | 4,031 |
Commercial paper (December 31, 2019 – US$254 million; December 31, 2018 – US$104 million) |  | 329 |  |  | 141 |
US dollar debt securities |  |  |  |  |
3.45% due November 15, 2021 (US$500 million) |  | 648 |  |  | 682 |
2.95% due January 15, 2023 (US$1,000 million) |  | 1,296 |  |  | 1,364 |
3.80% due April 15, 2024 (US$500 million) |  | 648 |  |  | 682 |
3.90% due February 1, 2025 (US$600 million) |  | 778 |  |  | 819 |
3.85% due June 1, 2027 (US$1,250 million) |  | 1,621 |  |  | 1,706 |
7.20% due January 15, 2032 (US$400 million) |  | 519 |  |  | 546 |
6.45% due June 30, 2033 (US$350 million) |  | 454 |  |  | 478 |
5.85% due February 1, 2035 (US$350 million) |  | 454 |  |  | 478 |
6.50% due February 15, 2037 (US$450 million) |  | 583 |  |  | 614 |
6.25% due March 15, 2038 (US$1,100 million) |  | 1,426 |  |  | 1,501 |
6.75% due February 1, 2039 (US$400 million) |  | 519 |  |  | 546 |
4.95% due June 1, 2047 (US$750 million) |  | 972 |  |  | 1,023 |
|  | 15,102 |  |  | 14,611 |
Long-term debt before transaction costs and original issue discounts, net |  | 21,090 |  |  | 20,742 |
Less: original issue discounts, net (1) |  | 17 |  |  | 17 |
transaction costs (1) (2) |  | 91 |  |  | 102 |
|  | 20,982 |  |  | 20,623 |
Less: current portion of commercial paper |  | 329 |  |  | 141 |
current portion of other long-term debt (1) (2) |  | 2,062 |  |  | 1,000 |
|  | $ | 18,591 |  |  | $ | 19,482 |
(1) | The Company has included unamortized original issue discounts and premiums, and directly attributable transaction costs in the carrying amount of the outstanding debt.
(2) | Transaction costs primarily represent underwriting commissions charged as a percentage of the related debt offerings, as well as legal, rating agency and other professional fees.
Schedule of debt repayments | Scheduled debt repayments are as follows:
Year | Repayment |
2020 | $ | 2,391 |
2021 | $ | 1,552 |
2022 | $ | 3,879 |
2023 | $ | 3,894 |
2024 | $ | 1,148 |
Thereafter | $ | 8,226 |
The maturity dates of the Company’s financial liabilities were as follows:
|  | Less than 1 year |  |  | 1 to less than 2 years |  |  | 2 to less than 5 years |  |  | Thereafter |
Accounts payable |  | $ | 816 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Accrued liabilities |  | $ | 2,611 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Long-term debt (1) |  | $ | 2,391 |  |  | $ | 1,552 |  |  | $ | 8,921 |  |  | $ | 8,226 |
Other long-term liabilities (2) |  | $ | 370 |  |  | $ | 196 |  |  | $ | 436 |  |  | $ | 1,014 |
Interest and other financing expense (3) |  | $ | 881 |  |  | $ | 813 |  |  | $ | 1,771 |  |  | $ | 4,856 |
(1) | Long-term debt represents principal repayments only and does not reflect interest, original issue discounts and premiums or transaction costs.
(2) | Lease payments included within other long-term liabilities reflect principal payments only and are as follows; less than one year, $233 million; one to less than two years, $171 million; two to less than five years, $391 million; and thereafter $1,014 million.
(3) | Includes interest and other financing expense on long-term debt and other long-term liabilities. Payments were estimated based upon applicable interest and foreign exchange rates at December 31, 2019.

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