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Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract] |
Summary Of Changes In Asset Retirement Obligations | The following table presents the changes in asset retirement obligations.
|  | Year Ended December 31, |
|  | 2024 |  |  | 2023 |
Asset retirement obligations as of beginning of period |  | $ | 665 |  |  | $ | 529 |
Assumed Grayson Mill obligations |  |  | 75 |  |  |  | — |
Liabilities incurred |  |  | 30 |  |  |  | 110 |
Liabilities settled and divested |  |  | (37 | ) |  |  | (30 | )
Revision of estimated obligation |  |  | 35 |  |  |  | 27 |
Accretion expense on discounted obligation |  |  | 39 |  |  |  | 29 |
Asset retirement obligations as of end of period |  |  | 807 |  |  |  | 665 |
Less current portion |  |  | 37 |  |  |  | 22 |
Asset retirement obligations, long-term |  | $ | 770 |  |  | $ | 643 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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