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Segmented Information - Segmented Assets (Details) - CAD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure of operating segments [line items] |  |
Assets | $ 85,359 | $ 75,955
Operating segments | North America |  |
Disclosure of operating segments [line items] |  |
Assets | 32,670 | 30,058
Operating segments | North Sea |  |
Disclosure of operating segments [line items] |  |
Assets | 702 | 602
Operating segments | Offshore Africa |  |
Disclosure of operating segments [line items] |  |
Assets | 1,412 | 1,380
Operating segments | Other |  |
Disclosure of operating segments [line items] |  |
Assets | 31 | 32
Operating segments | Oil Sands Mining and Upgrading |  |
Disclosure of operating segments [line items] |  |
Assets | 49,221 | 42,865
Operating segments | Midstream and Refining |  |
Disclosure of operating segments [line items] |  |
Assets | 1,099 | 856
Head Office |  |
Disclosure of operating segments [line items] |  |
Assets | $ 224 | $ 162

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