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Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Current income taxes |  |  |
Federal(a) | $ (565) | $ (365) | $ 71
State | (6) | 31 | 1
Foreign | 2 | 2 | 3
Total current income taxes | (569) | (332) | 75
Deferred income taxes |  |  |
Federal | 1,101 | 858 | 319
State | 135 | 81 | 53
Total deferred income taxes | 1,236 | 939 | 372
ITC amortization | (25) | (17) | (9)
Income tax expense from continuing operations | 642 | 590 | 438
Tax benefit from discontinued operations |  | (50) | (359)
Total income tax expense included in Consolidated Statements of Operations |  | 540 | 79
Deferred income taxes attributable to generation / utilization under tax sharing agreement | 354 |  |
Net operating loss carry forward | 523 | 214 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Domestic | 5,674 | 5,145 | 4,700
Foreign | 38 | 49 | 67
Income from continuing operations before income taxes | 5,712 | 5,194 | 4,767
Alternative minimum tax |  | 69 |
Duke Energy Carolinas |  |  |
Current income taxes |  |  |
Federal(a) | (278) | 178 | 173
State | 30 | 75 | 22
Total current income taxes | (248) | 253 | 195
Deferred income taxes |  |  |
Federal | 432 | 10 | (43)
State | 27 | (25) | (7)
Total deferred income taxes | 459 | (15) | (50)
ITC amortization | (17) | (12) | (4)
Income tax expense from continuing operations | 194 | 226 | 141
Total income tax expense included in Consolidated Statements of Operations |  | 226 | 141
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (36) |  |
Net operating loss carry forward | 47 | 2 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 2,302 | 2,109 | 1,611
Progress Energy |  |  |
Current income taxes |  |  |
Federal(a) | 134 | 359 | 459
State | 21 | 34 | 38
Total current income taxes | 155 | 393 | 497
Deferred income taxes |  |  |
Federal | 259 | (22) | (154)
State | 76 | 59 | 38
Total deferred income taxes | 335 | 37 | (116)
ITC amortization | (5) | (4) | (4)
Income tax expense from continuing operations | 485 | 426 | 377
Total income tax expense included in Consolidated Statements of Operations |  | 426 | 377
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (11) |  |
Net operating loss carry forward | 85 | 116 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 2,900 | 2,597 | 2,333
Duke Energy Progress |  |  |
Current income taxes |  |  |
Federal(a) | (118) | 373 | 198
State | (3) | 40 | 4
Total current income taxes | (121) | 413 | 202
Deferred income taxes |  |  |
Federal | 319 | (215) | (69)
State | 29 | (6) | 19
Total deferred income taxes | 348 | (221) | (50)
ITC amortization | (4) | (3) | (3)
Income tax expense from continuing operations | 223 | 189 | 149
Total income tax expense included in Consolidated Statements of Operations |  | 189 | 149
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (29) |  |
Net operating loss carry forward | 66 | 59 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 1,505 | 1,353 | 1,147
Duke Energy Florida |  |  |
Current income taxes |  |  |
Federal(a) | 264 | 14 | 279
State | 74 | (12) | 71
Total current income taxes | 338 | 2 | 350
Deferred income taxes |  |  |
Federal | (57) | 181 | (89)
State | 9 | 86 |
Total deferred income taxes | (48) | 267 | (89)
ITC amortization | (1) | (1) |
Income tax expense from continuing operations | 289 | 268 | 261
Total income tax expense included in Consolidated Statements of Operations |  | 268 | 261
Deferred income taxes attributable to generation / utilization under tax sharing agreement | 4 |  |
Net operating loss carry forward | 30 | 5 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 1,482 | 1,329 | 1,277
Proceeds from sale of PTCs |  | 28 |
Duke Energy Ohio |  |  |
Current income taxes |  |  |
Federal(a) | 66 | 52 | (46)
State | 2 | 3 | (3)
Total current income taxes | 68 | 55 | (49)
Deferred income taxes |  |  |
Federal | (3) | 8 | 111
State | 3 | 1 | 1
Total deferred income taxes |  | 9 | 112
Income tax expense from continuing operations | 68 | 64 | 63
Total income tax expense included in Consolidated Statements of Operations |  | 64 | 63
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (14) |  |
Net operating loss carry forward | 26 | 22 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 406 | 405 | 397
Duke Energy Indiana |  |  |
Current income taxes |  |  |
Federal(a) | 125 | 70 | 10
State | 13 | 12 | 9
Total current income taxes | 138 | 82 | 19
Deferred income taxes |  |  |
Federal | (64) | (19) | 77
State | 11 | 8 | 14
Total deferred income taxes | (53) | (11) | 91
ITC amortization | (3) |  |
Income tax expense from continuing operations | 82 | 71 | 110
Total income tax expense included in Consolidated Statements of Operations |  | 71 | 110
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (45) |  |
Net operating loss carry forward | 8 | 54 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | 602 | 512 | 607
Piedmont |  |  |
Current income taxes |  |  |
Federal(a) | 65 | 40 | 44
State | 7 | (6) | 3
Total current income taxes | 72 | 34 | 47
Deferred income taxes |  |  |
Federal | 37 | 40 | 25
State | 3 | 21 | 12
Total deferred income taxes | 40 | 61 | 37
Income tax expense from continuing operations | 112 | 95 | 84
Total income tax expense included in Consolidated Statements of Operations |  | 95 | 84
Deferred income taxes attributable to generation / utilization under tax sharing agreement | (2) |  |
Net operating loss carry forward | 8 | 15 |
Duke Energy Income from Continuing Operations Before Income Taxes [Abstract] |  |  |
Income from continuing operations before income taxes | $ 552 | $ 508 | $ 463

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