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Debt and Capital Structure - Summary of Net Debt to Adjusted Funds Flow (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Borrowings [abstract] |  |
Net Debt | $ 4,614 | $ 5,060
Cash From (Used in) Operating Activities | 9,235 | 7,388
Settlement of Decommissioning Liabilities | (234) | (222)
Net Change in Non-Cash Working Capital | 1,305 | (1,193)
Adjusted Funds Flow | $ 8,164 | $ 8,803
Net Debt to Adjusted Funds Flow (times) | 60.00% | 60.00%

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- Definition The cash flows from (used in) operating activities, which are the principal revenue-producing activities of the entity and other activities that are not investing or financing activities, from continuing and discontinued operations. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 10 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_10&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 50 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_50_d&doctype=Standard -URIDate 2024-03-27 + Details
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