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Asset Retirement Obligation | 12 Months Ended
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Dec. 31, 2025
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligation |
17. | Asset Retirement Obligation
As at December 31 |  |  |  | 2025 |  |  | 2024 |
Asset Retirement Obligation, Beginning of Year |  |  |  | $ | 356 |  |  | $ | 330 |
Liabilities Incurred |  |  |  |  | 7 |  |  |  | 9 |
Liabilities Acquired (See Note 8) |  |  |  |  | 172 |  |  |  | - |
Liabilities Settled |  |  |  |  | (40 | ) |  |  | (52 | )
Liabilities Divested |  |  |  |  | (46 | ) |  |  | - |
Change in Estimated Future Cash Outflows |  |  |  |  | (68 | ) |  |  | 64 |
Accretion Expense |  |  |  |  | 28 |  |  |  | 19 |
Foreign Currency Translation |  |  |  |  | 15 |  |  |  | (14 | )
Asset Retirement Obligation, End of Year |  |  |  | $ | 424 |  |  | $ | 356 |
Current Portion (See Note 13) |  |  |  | $ | 36 |  |  | $ | 41 |
Long-Term Portion |  |  |  |  | 388 |  |  |  | 315 |
|  |  |  | $ | 424 |  |  | $ | 356 |

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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/410-20/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 20 -Topic 410 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-2 + Details
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