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Commitments (Long-Term Purchase Commitments) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Electricity Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | $ 797 | $ 1,134 | $ 1,156
Purchase Obligation, Due in Next Twelve Months | 759 |  |
Purchase Obligation, Due in Second Year | 731 |  |
Purchase Obligation, Due in Third Year | 660 |  |
Purchase Obligation, Due in Fourth Year | 648 |  |
Purchase Obligation, Due in Fifth Year | 640 |  |
Future Commitments Thereafter | 5,484 |  |
Future Commitments Total | 8,922 |  |
Fuel Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 1,869 | 1,982 | 3,375
Purchase Obligation, Due in Next Twelve Months | 1,701 |  |
Purchase Obligation, Due in Second Year | 1,005 |  |
Purchase Obligation, Due in Third Year | 774 |  |
Purchase Obligation, Due in Fourth Year | 528 |  |
Purchase Obligation, Due in Fifth Year | 474 |  |
Future Commitments Thereafter | 1,259 |  |
Future Commitments Total | 5,741 |  |
Other Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 3,507 | $ 3,181 | $ 3,602
Purchase Obligation, Due in Next Twelve Months | 2,485 |  |
Purchase Obligation, Due in Second Year | 262 |  |
Purchase Obligation, Due in Third Year | 192 |  |
Purchase Obligation, Due in Fourth Year | 140 |  |
Purchase Obligation, Due in Fifth Year | 142 |  |
Future Commitments Thereafter | 892 |  |
Future Commitments Total | $ 4,113 |  |

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- Definition The total minimum amount the entity agreed to spend under the long-term purchase commitment + References No definition available. + Details
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- Definition The actual amount the entity purchased under the long-term purchase commitment + References No definition available. + Details
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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due after the fifth year following the balance sheet date + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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