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Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Details) - CAD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]
Asset retirement obligations	$ 8,607	$ 7,690	$ 6,908	$ 6,806
Lease liabilities	1,464	1,555
Share-based compensation	620	780	$ 832	$ 489
Transportation and processing contracts	58	87
Risk management	8	4
Other	80	73
Other liabilities	10,837	10,189
Less: current portion	1,535	1,503
Other long-term liabilities	$ 9,302	$ 8,686

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- Definition

Miscellaneous Other Liabilities

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No definition available.

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- Definition

Product Transportation And Processing Obligation

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No definition available.

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- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

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- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

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- Definition

The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]]

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- Definition

The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities]

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- Definition

The amount of liabilities that the entity does not separately disclose in the same statement or note.

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The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

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- Definition

The amount of provision for costs related to decommissioning, restoration and rehabilitation. [Refer: Other provisions]

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