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Commitments and Contingencies - Unconditional Purchase Obligations (Details) $ in Millions | Dec. 31, 2022 USD ($)
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Minimum future commitments for purchase obligations |
Total Amounts Committed | $ 10,461.0
2023 | 1,418.4
2024 | 1,304.1
2025 | 1,145.3
2026 | 951.5
2027 | 944.2
Later Years | 4,697.5
Nuclear | Electric |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 6,829.1
2023 | 548.5
2024 | 600.3
2025 | 634.5
2026 | 681.6
2027 | 730.4
Later Years | 3,633.8
Coal supply and transportation | Electric |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 936.1
2023 | 393.3
2024 | 279.2
2025 | 207.9
2026 | 24.7
2027 | 7.6
Later Years | 23.4
Purchased power | Electric |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 256.2
2023 | 63.4
2024 | 54.2
2025 | 47.8
2026 | 44.2
2027 | 19.6
Later Years | 27.0
Supply and transportation | Natural gas |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 1,938.8
2023 | 382.1
2024 | 344.2
2025 | 228.4
2026 | 173.7
2027 | 158.8
Later Years | 651.6
Non-Utility Energy Infrastructure | Purchased power | Electric |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 495.0
2023 | 26.2
2024 | 26.1
2025 | 26.7
2026 | 27.3
2027 | 27.8
Later Years | 360.9
Non-Utility Energy Infrastructure | Natural gas storage and transportation | Natural gas |
Minimum future commitments for purchase obligations |
Total Amounts Committed | 5.8
2023 | 4.9
2024 | 0.1
2025 | 0.0
2026 | 0.0
2027 | 0.0
Later Years | $ 0.8

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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid after 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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X
- 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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X
- 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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X
- 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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X
- 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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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