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Regulatory Matters - Total Storm Restoration Costs Across Subsidiary Registrants (Details) - Hurricanes Helene, Debby and Milton $ in Millions | 24 Months Ended
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Dec. 31, 2025 USD ($)
Duke Energy Carolinas |
Public Utilities, General Disclosures [Line Items] |
Estimated storm restoration costs | $ 474
Duke Energy Progress |
Public Utilities, General Disclosures [Line Items] |
Estimated storm restoration costs | $ 288

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