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Commitments and Contingencies (Purchased Power) (Details) - Purchased Power Contracts $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($)
Duke Energy Progress |
Unconditional Purchase Obligations [Abstract] |
2024 | $ 21
2025 | 22
2026 | 18
2027 | 19
2028 | 19
Thereafter | 7
Total | $ 106
Duke Energy Progress | Minimum |
Unconditional Purchase Obligations [Abstract] |
Net plant output (as a percent) | 18.00%
Duke Energy Progress | Maximum |
Unconditional Purchase Obligations [Abstract] |
Net plant output (as a percent) | 100.00%
Duke Energy Florida |
Unconditional Purchase Obligations [Abstract] |
2024 | $ 86
2025 | 91
Total | $ 177
Net plant output (as a percent) | 100.00%
Duke Energy Ohio |
Unconditional Purchase Obligations [Abstract] |
2024 | $ 153
2025 | 98
Total | 251
Duke Energy Indiana |
Unconditional Purchase Obligations [Abstract] |
2024 | 12
2025 | 20
2026 | 8
Total | $ 40

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