Derivatives - Outstanding Natural Gas Supply Contracts Derivatives (Details) - MMBTU MMBTU in Millions |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2026 |
Dec. 31, 2025 |
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| Natural gas supply contracts | ||
| Derivative [Line Items] | ||
| Total notional | 4,126 | 3,613 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Nominal energy measure used to calculate payments on a derivative instrument. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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