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Income Taxes (Effective Tax Rates) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |  |
U.S. Federal statutory income tax | $ 1,200 | $ 1,090 | $ 1,001
Tax credits |  |  |
Production tax credits |  | (46) |
Amortization of ITCs | (25) |  |
Other | (23) | (43) | (63)
AFUDC equity income | (68) | (48) | (41)
AFUDC equity depreciation | 46 | 38 | 37
Amortization of EDIT | (466) | (436) | (388)
Other | (27) |  |
Changes in valuation allowances | 7 |  |
Foreign tax effects | (6) |  |
Unrecognized tax benefits | (1) |  |
Domestic state and local income taxes, net of federal effect | 106 | 88 | 43
Interest on company-owned life insurance |  |  | (114)
Other items, net |  | (53) | (37)
Income tax expense from continuing operations | $ 642 | $ 590 | $ 438
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.40%) |  |
Other | (0.40%) |  |
AFUDC equity income | (1.20%) |  |
AFUDC equity depreciation | 0.80% |  |
Amortization of EDIT | (8.20%) |  |
Other | (0.50%) |  |
Changes in valuation allowances | 0.10% |  |
Foreign tax effects | (0.10%) |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 1.80% |  |
Total | 11.20% | 11.40% | 9.20%
PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | $ (65) |  |
Tax credits |  |  |
Production tax credits | (1.10%) |  |
Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | $ (36) |  |
Tax credits |  |  |
Production tax credits | (0.60%) |  |
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] |  |  |
U.S. Federal statutory income tax | $ 483 | $ 443 | $ 338
Tax credits |  |  |
Amortization of ITCs | (17) |  |
Other | (11) | (23) | (11)
AFUDC equity income | (30) | (24) | (19)
AFUDC equity depreciation | 19 | 19 | 18
Amortization of EDIT | (260) | (225) | (197)
Other | (1) |  |
Domestic state and local income taxes, net of federal effect | 47 | 40 | 12
Other items, net |  | (4) |
Income tax expense from continuing operations | $ 194 | $ 226 | $ 141
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.70%) |  |
Other | (0.50%) |  |
AFUDC equity income | (1.30%) |  |
AFUDC equity depreciation | 0.80% |  |
Amortization of EDIT | (11.30%) |  |
Other | 0.00% |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 2.00% |  |
Total | 8.40% | 10.70% | 8.80%
Duke Energy Carolinas | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Duke Energy Carolinas | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | $ (36) |  |
Tax credits |  |  |
Production tax credits | (1.60%) |  |
Progress Energy |  |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |  |
U.S. Federal statutory income tax | $ 609 | $ 545 | $ 490
Tax credits |  |  |
Production tax credits |  | (46) |
Amortization of ITCs | (5) |  |
Other | (9) | (16) | (46)
AFUDC equity income | (25) | (16) | (14)
AFUDC equity depreciation | 19 | 14 | 13
Amortization of EDIT | (118) | (121) | (114)
Other | 1 |  |
Unrecognized tax benefits | (1) |  |
Domestic state and local income taxes, net of federal effect | 79 | 73 | 60
Other items, net |  | (7) | (12)
Income tax expense from continuing operations | $ 485 | $ 426 | $ 377
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.20%) |  |
Other | (0.30%) |  |
AFUDC equity income | (0.90%) |  |
AFUDC equity depreciation | 0.70% |  |
Amortization of EDIT | (4.10%) |  |
Other | 0.00% |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 2.70% |  |
Total | 16.70% | 16.40% | 16.20%
Progress Energy | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | $ (65) |  |
Tax credits |  |  |
Production tax credits | (2.20%) |  |
Progress Energy | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
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] |  |  |
U.S. Federal statutory income tax | $ 316 | $ 284 | $ 241
Tax credits |  |  |
Amortization of ITCs | (4) |  |
Other | (6) | (12) | (7)
AFUDC equity income | (21) | (13) | (11)
AFUDC equity depreciation | 11 | 7 | 6
Amortization of EDIT | (96) | (98) | (91)
Other | 2 |  |
Unrecognized tax benefits | (1) |  |
Domestic state and local income taxes, net of federal effect | 23 | 27 | 18
Other items, net |  | (6) | (7)
Income tax expense from continuing operations | $ 223 | $ 189 | $ 149
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.30%) |  |
Other | (0.40%) |  |
AFUDC equity income | (1.40%) |  |
AFUDC equity depreciation | 0.70% |  |
Amortization of EDIT | (6.40%) |  |
Other | 0.10% |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 1.50% |  |
Total | 14.80% | 14.00% | 13.00%
Duke Energy Progress | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | $ (1) |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Duke Energy Progress | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
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] |  |  |
U.S. Federal statutory income tax | $ 311 | $ 279 | $ 268
Tax credits |  |  |
Production tax credits |  | (46) |
Amortization of ITCs | (1) |  |
Other | (3) | (4) | (39)
AFUDC equity income | (4) | (3) | (3)
AFUDC equity depreciation | 8 | 7 | 7
Amortization of EDIT | (22) | (23) | (23)
Other | (3) |  |
Unrecognized tax benefits | 1 |  |
Domestic state and local income taxes, net of federal effect | 66 | 58 | 56
Other items, net |  |  | (5)
Income tax expense from continuing operations | $ 289 | $ 268 | $ 261
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.10%) |  |
Other | (0.20%) |  |
AFUDC equity income | (0.30%) |  |
AFUDC equity depreciation | 0.50% |  |
Amortization of EDIT | (1.50%) |  |
Other | (0.20%) |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.10% |  |
Domestic state and local income taxes, net of federal effect | 4.50% |  |
Total | 19.50% | 20.20% | 20.40%
Duke Energy Florida | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | $ (64) |  |
Tax credits |  |  |
Production tax credits | (4.30%) |  |
Duke Energy Florida | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
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] |  |  |
U.S. Federal statutory income tax | $ 85 | $ 85 | $ 83
Tax credits |  |  |
Other | (1) | (1) | (2)
AFUDC equity income | (3) | (1) | (2)
AFUDC equity depreciation | 4 | 2 | 2
Amortization of EDIT | (22) | (23) | (22)
Domestic state and local income taxes, net of federal effect | 4 | 3 | (2)
Other items, net |  | (1) | 6
Income tax expense from continuing operations | $ 68 | $ 64 | $ 63
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | 0.00% |  |
Other | (0.20%) |  |
AFUDC equity income | (0.70%) |  |
AFUDC equity depreciation | 1.00% |  |
Amortization of EDIT | (5.40%) |  |
Other | 0.00% |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 1.00% |  |
Total | 16.70% | 15.80% | 15.90%
Duke Energy Ohio | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Duke Energy Ohio | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
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] |  |  |
U.S. Federal statutory income tax | $ 127 | $ 108 | $ 128
Tax credits |  |  |
Amortization of ITCs | (3) |  |
Other | (1) | (2) | (2)
AFUDC equity income | (6) | (3) | (2)
AFUDC equity depreciation | 4 | 4 | 4
Amortization of EDIT | (57) | (49) | (33)
Domestic state and local income taxes, net of federal effect | 19 | 16 | 18
Other items, net |  | (3) | (3)
Income tax expense from continuing operations | $ 82 | $ 71 | $ 110
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | (0.50%) |  |
Other | (0.20%) |  |
AFUDC equity income | (1.00%) |  |
AFUDC equity depreciation | 0.70% |  |
Amortization of EDIT | (9.50%) |  |
Other | (0.10%) |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 3.20% |  |
Total | 13.60% | 13.90% | 18.10%
Duke Energy Indiana | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Duke Energy Indiana | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Piedmont |  |  |
Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations [Abstract] |  |  |
U.S. Federal statutory income tax | $ 116 | $ 107 | $ 97
Tax credits |  |  |
Other | (1) | (2) | (1)
AFUDC equity income | (4) | (4) | (4)
AFUDC equity depreciation | 1 |  |
Amortization of EDIT | (8) | (18) | (20)
Domestic state and local income taxes, net of federal effect | 9 | 12 | 12
Income tax expense from continuing operations | $ 112 | $ 95 | $ 84
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. Federal statutory income tax | 21.00% |  |
Tax credits |  |  |
Amortization of ITCs | 0.00% |  |
Other | (0.20%) |  |
AFUDC equity income | (0.70%) |  |
AFUDC equity depreciation | 0.20% |  |
Amortization of EDIT | (1.40%) |  |
Other | (0.20%) |  |
Changes in valuation allowances | 0.00% |  |
Foreign tax effects | 0.00% |  |
Unrecognized tax benefits | 0.00% |  |
Domestic state and local income taxes, net of federal effect | 1.60% |  |
Total | 20.30% | 18.70% | 18.10%
Piedmont | PTCs (solar) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |
Piedmont | Amortization of PTCs (nuclear) |  |  |
Tax credits |  |  |
Production tax credits | 0.00% |  |

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