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v3.25.1

Income Taxes (Effective Tax Rates) (Details) | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 12.10% | 13.40%
Duke Energy Carolinas |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 9.00% | 11.50%
Progress Energy |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 16.80% | 16.50%
Duke Energy Progress |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 14.50% | 15.00%
Duke Energy Florida |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 19.90% | 19.40%
Duke Energy Ohio |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 18.00% | 16.80%
Duke Energy Indiana |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 12.50% | 17.30%
Piedmont |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |
Effective tax rate | 20.70% | 19.60%

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