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Property, Plant and Equipment, Net - Summary of Property, Plant and Equipment (Detail) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Feb. 28, 2023
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | $ 37,250 |  |
Ending Balance | 38,568 | $ 37,250 |
Property, Plant and Equipment, Net | 38,568 | 37,250 |
BP-Husky Refining LLC |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, Plant and Equipment, Net |  |  | $ 334
COST |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 62,375 | 57,739 |
Acquisition | 15 | 781 |
Additions | 4,950 | 4,214 |
Transfer from E&E (Note 15) | 285 | 60 |
Change in Decommissioning Liabilities | 313 | 581 |
Divestitures | (271) | (667) |
Exchange Rate Movements and Other | 1,003 | (333) |
Ending Balance | 68,670 | 62,375 |
Property, Plant and Equipment, Net | 68,670 | 62,375 |
ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | (25,125) | (21,240) |
Divestitures | 208 | 319 |
Exchange Rate Movements and Other | 605 | (147) |
Depreciation, Depletion and Amortization | 4,580 | 4,351 |
Ending Balance | (30,102) | (25,125) |
Property, Plant and Equipment, Net | (30,102) | (25,125) |
Crude Oil and Natural Gas Properties |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 29,450 |  |
Ending Balance | 30,241 | 29,450 |
Property, Plant and Equipment, Net | 30,241 | 29,450 |
Crude Oil and Natural Gas Properties | COST |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 47,425 | 43,528 |
Acquisition | 15 | 11 |
Additions | 4,215 | 3,392 |
Transfer from E&E (Note 15) | 285 | 60 |
Change in Decommissioning Liabilities | 312 | 542 |
Divestitures | (270) | (17) |
Exchange Rate Movements and Other | 108 | (91) |
Ending Balance | 52,090 | 47,425 |
Property, Plant and Equipment, Net | 52,090 | 47,425 |
Crude Oil and Natural Gas Properties | ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | (17,975) | (14,302) |
Divestitures | 208 | 8 |
Exchange Rate Movements and Other | 133 | (11) |
Depreciation, Depletion and Amortization | 3,949 | 3,692 |
Ending Balance | (21,849) | (17,975) |
Property, Plant and Equipment, Net | (21,849) | (17,975) |
Processing, Transportation and Storage Assets |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 143 |  |
Ending Balance | 139 | 143 |
Property, Plant and Equipment, Net | 139 | 143 |
Processing, Transportation and Storage Assets | COST |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 272 | 254 |
Acquisition | 0 | 0 |
Additions | 3 | 14 |
Transfer from E&E (Note 15) | 0 | 0 |
Change in Decommissioning Liabilities | 2 | 0 |
Divestitures | 0 | 0 |
Exchange Rate Movements and Other | 3 | 4 |
Ending Balance | 280 | 272 |
Property, Plant and Equipment, Net | 280 | 272 |
Processing, Transportation and Storage Assets | ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | (129) | (106) |
Divestitures | 0 | 0 |
Exchange Rate Movements and Other | 1 | 4 |
Depreciation, Depletion and Amortization | 11 | 19 |
Ending Balance | (141) | (129) |
Property, Plant and Equipment, Net | (141) | (129) |
Refining Assets |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 7,103 |  |
Ending Balance | 7,650 | 7,103 |
Property, Plant and Equipment, Net | 7,650 | 7,103 |
Refining Assets | COST |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 12,770 | 12,132 |
Acquisition | 0 | 770 |
Additions | 661 | 719 |
Transfer from E&E (Note 15) | 0 | 0 |
Change in Decommissioning Liabilities | 4 | 21 |
Divestitures | 0 | (633) |
Exchange Rate Movements and Other | 890 | (239) |
Ending Balance | 14,325 | 12,770 |
Property, Plant and Equipment, Net | 14,325 | 12,770 |
Refining Assets | ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | (5,667) | (5,547) |
Divestitures | 0 | 299 |
Exchange Rate Movements and Other | 469 | (135) |
Depreciation, Depletion and Amortization | 539 | 554 |
Ending Balance | (6,675) | (5,667) |
Property, Plant and Equipment, Net | (6,675) | (5,667) |
Other Assets |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 554 |  |
Ending Balance | 538 | 554 |
Property, Plant and Equipment, Net | 538 | 554 |
Other Assets | COST |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | 1,908 | 1,825 |
Acquisition | 0 | 0 |
Additions | 71 | 89 |
Transfer from E&E (Note 15) | 0 | 0 |
Change in Decommissioning Liabilities | (5) | 18 |
Divestitures | (1) | (17) |
Exchange Rate Movements and Other | 2 | (7) |
Ending Balance | 1,975 | 1,908 |
Property, Plant and Equipment, Net | 1,975 | 1,908 |
Other Assets | ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Beginning Balance | (1,354) | (1,285) |
Divestitures | 0 | 12 |
Exchange Rate Movements and Other | 2 | (5) |
Depreciation, Depletion and Amortization | 81 | 86 |
Ending Balance | (1,437) | (1,354) |
Property, Plant and Equipment, Net | $ (1,437) | $ (1,354) |

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