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Property, Plant and Equipment - Narrative (Details) - CAD ($) | 1 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 05, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Revenue |  |  | $ 35,656,000,000 | $ 35,968,000,000 | $ 42,298,000,000
Revenue net of blending, production, transportation, and feedstock expense |  |  | 17,579,000,000 |  |
Chevron Canada Limited |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Total purchase consideration | $ 9,163,000,000 |  | 9,163,000,000 |  |
Revenue of acquiree since acquisition date | 222,000,000 |  |  |  |
Revenue net of blending, production, transportation, and feedstock expense since acquisition date | 109,000,000 |  |  |  |
Earnings before tax, including interest expense, depletion, depreciation and amortization since acquisition date | 23,000,000 |  |  |  |
Proforma revenue |  | $ 2,700,000,000 |  |  |
Pro forma operating income |  | 1,475,000,000 |  |  |
Pro forma earnings before tax, including interest expense, depletion, depreciation and amortization |  | $ 570,000,000 |  |  |
Asset retirement obligations | $ 173,000,000 |  | $ 173,000,000 |  |
Chevron Canada Limited, Operated Working Interest, Duvernay Asset Play in Alberta |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Interest acquired | 70.00% |  | 70.00% |  |
Chevron Canada Limited, Working Interest, AOSP |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Interest acquired | 20.00% |  | 20.00% |  |
Chevron Canada Limited, Direct and Indirect Working Interest, AOSP |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Interest acquired | 90.00% |  | 90.00% |  |
Non Revolving Term Credit Facility |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Maximum credit facility | $ 4,000,000,000 |  | $ 4,000,000,000 |  |
North America Exploration And Production segment - Crude Oil And Natural Gas Properties |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Total purchase consideration |  |  |  |  | 513,000,000
Asset retirement obligations |  |  |  |  | 11,000,000
Lease liabilities |  |  |  |  | 0
Gains on acquisitions of property, plant and equipment, pre-tax |  |  |  |  | $ 0
Oil Sands Mining and Upgrading |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Project costs not subject to depletion and depreciation | $ 272,000,000 |  | $ 272,000,000 | $ 191,000,000 |

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