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Contingent Payments - Additional Information (Detail) - BP Canada - CAD ($) $ in Millions |  | 9 Months Ended
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Aug. 31, 2024 | Sep. 30, 2024
Disclosure of contingent liabilities in business combination [line items] |  |
Proportion of ownership interest in joint operation | 50.00% |
Settled liabilities, contingent liabilities recognised in business combination |  | $ 40
Major business combination |  |
Disclosure of contingent liabilities in business combination [line items] |  |
Settled liabilities, contingent liabilities recognised in business combination |  | $ 261

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- Definition The proportion of ownership interest in a joint operation attributable to the entity. [Refer: Total for all joint operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of contingent liabilities recognised in a business combination that were settled. [Refer: Contingent liabilities recognised in business combination] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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