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Regulatory Matters - Total Storm Restoration Costs Across Subsidiary Registrants (Details) - Hurricanes Helene, Debby and Milton $ in Millions	24 Months Ended
	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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