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Debt and Capital Structure - Summary of Net Debt to Adjusted EBITDA (Detail) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |
Short-Term Borrowings | $ 179 | $ 115 |
Current Portion of Long-Term Debt | 0 | 0 |
Long-Term Portion of Long-Term Debt | 7,108 | 8,691 |
Total Debt | 7,108 | 8,691 |
Less: Cash and Cash Equivalents | (2,227) | (4,524) | $ (2,873)
Net Debt | 5,060 | 4,282 |
Net Earnings (Loss) | 4,109 | 6,450 |
Add (Deduct): |  |  |
Interest Income | (133) | (81) |
Foreign Exchange (Gain) Loss, Net | (67) | 343 |
Revaluation (Gain) Loss | (34) | 549 |
Re-measurement of Contingent Payment | (59) | (162) |
Other (Income) Loss, Net | $ (63) | $ (532) |
Net Debt to Adjusted EBITDA | 50.00% | 30.00% |
Rolling Twelve Month Basis |  |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |
Short-Term Borrowings | $ 179 | $ 115 |
Long-Term Portion of Long-Term Debt | 7,108 | 8,691 |
Total Debt | 7,287 | 8,806 |
Less: Cash and Cash Equivalents | (2,227) | (4,524) |
Net Debt | 5,060 | 4,282 |
Net Earnings (Loss) | 4,109 | 6,450 |
Add (Deduct): |  |  |
Finance Costs | 671 | 820 |
Interest Income | (133) | (81) |
Income Tax Expense (Recovery) | 931 | 2,281 |
Depreciation, Depletion and Amortization | 4,644 | 4,679 |
Exploration and Evaluation Asset Write-downs | 29 | 64 |
(Income) Loss From Equity-Accounted Affiliates | (51) | (15) |
Unrealized (Gain) Loss on Risk Management | 52 | (126) |
Foreign Exchange (Gain) Loss, Net | (67) | 343 |
Revaluation (Gain) Loss | 34 | (549) |
Re-measurement of Contingent Payment | 59 | 162 |
(Gain) Loss on Divestiture of Assets | (14) | (269) |
Other (Income) Loss, Net | (63) | (532) |
Adjusted EBITDA | $ 10,201 | $ 13,227 |

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