Contingent Payments - Additional Information (Detail) - BP Canada - CAD ($) $ in Millions		9 Months Ended
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

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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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

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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

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