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DEBT - Schedule of Interest Expense (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
DEBT |  |  |
Capitalized interest | $ (101) | $ (74) | $ (215)
Total interest expense | 3,812 | 3,179 | 2,655
Spectra Energy Capital, LLC |  |  |
DEBT |  |  |
Amortization of fair value adjustment | (45) | (45) | (50)
Debentures and term notes |  |  |
DEBT |  |  |
Interest expense on debt | 3,439 | 2,910 | 2,806
Commercial paper and credit facility draws |  |  |
DEBT |  |  |
Interest expense on debt | $ 519 | $ 388 | $ 114

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