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Regulatory Matters - Total Storm Restoration Costs Across Subsidiary Registrants (Details) - Hurricanes Helene, Debby and Milton $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Minimum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	$ 2,400
Maximum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	2,900
Duke Energy Carolinas | Minimum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	950
Duke Energy Carolinas | Maximum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	1,150
Duke Energy Progress | Minimum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	350
Duke Energy Progress | Maximum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	450
Duke Energy Florida | Minimum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	1,100
Duke Energy Florida | Maximum
Public Utilities, General Disclosures [Line Items]
Total storm restoration costs	$ 1,300

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