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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Franklin Mountain Energy |  |
Business Combination, Pro Forma Information [Line Items] |  |
Issuance of common stock for FME Interests | $ 785 | $ 0

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