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Commitments (Long-Term Purchase Commitments) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Electricity Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | $ 1,156 | $ 709 | $ 756
Purchase Obligation, Due in Next Twelve Months | 1,190 |  |
Purchase Obligation, Due in Second Year | 873 |  |
Purchase Obligation, Due in Third Year | 639 |  |
Purchase Obligation, Due in Fourth Year | 588 |  |
Purchase Obligation, Due in Fifth Year | 586 |  |
Future Commitments Thereafter | 5,924 |  |
Future Commitments Total | 9,800 |  |
Fuel Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 3,375 | 2,070 | 1,573
Purchase Obligation, Due in Next Twelve Months | 3,702 |  |
Purchase Obligation, Due in Second Year | 2,624 |  |
Purchase Obligation, Due in Third Year | 1,706 |  |
Purchase Obligation, Due in Fourth Year | 1,099 |  |
Purchase Obligation, Due in Fifth Year | 1,117 |  |
Future Commitments Thereafter | 3,134 |  |
Future Commitments Total | 13,382 |  |
Other Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 3,602 | $ 1,261 | $ 1,506
Purchase Obligation, Due in Next Twelve Months | 4,642 |  |
Purchase Obligation, Due in Second Year | 477 |  |
Purchase Obligation, Due in Third Year | 303 |  |
Purchase Obligation, Due in Fourth Year | 215 |  |
Purchase Obligation, Due in Fifth Year | 189 |  |
Future Commitments Thereafter | 1,515 |  |
Future Commitments Total | $ 7,341 |  |

X
- 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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X
- 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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