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Contingent Payments - Summary of Contingent Payment (Detail) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Aug. 31, 2022
Disclosure of contingent liabilities in business combination [line items]
Less: Current Portion	$ 263	$ 236
Long-Term Portion	156	0
Sunrise Oil Sands Partnership
Disclosure of contingent liabilities in business combination [line items]
Contingent Payment, Beginning of Year	0
Initial Recognition			$ 600
Liabilities Settled	(92)
Re-measurement	(89)
Contingent Payment, End of Year	419	0
Less: Current Portion	263
Long-Term Portion	156
FCCL Partnership
Disclosure of contingent liabilities in business combination [line items]
Contingent Payment, Beginning of Year	236	63
Liabilities Settled	(487)	(402)
Re-measurement	251	575
Contingent Payment, End of Year	$ 0	$ 236

X

- Definition

Current portion of contingent liabilities recognised in business combination.

+ References

No definition available.

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- Definition

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+ References

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- Definition

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- Definition

The amount, at acquisition date, of contingent consideration arrangements recognised as consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2022-03-24
-Paragraph B64
-Subparagraph g
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- Definition

The amount of contingent liabilities recognised in a business combination. [Refer: Contingent liabilities [member]; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2022-03-24
-Paragraph B67
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B
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- Definition

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+ References

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-Number 3
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