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Income Taxes (Deferred Income Taxes) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | $ 284 | $ 327 |
Lease obligations | 430 | 418 |
Pension, post-retirement and other employee benefits | 89 | 65 |
Progress Energy merger purchase accounting adjustments | 227 | 260 |
Tax credits and NOL carryforwards | 3,845 | 4,489 |
Other | 35 | 102 |
Valuation allowance | (517) | (544) |
Total deferred income tax assets | 4,393 | 5,117 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (2,114) | (1,812) |
Accelerated depreciation rates | (11,942) | (11,969) |
Regulatory assets and deferred debits, net | (1,761) | (1,892) |
Total deferred income tax liabilities | (15,817) | (15,673) |
Net deferred income tax liabilities | (11,424) | (10,556) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 3,845 | 4,489 |
Valuation allowance | 517 | 544 |
Net operating loss carry forward | 523 | 214 | $ 550
General Business Credits |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Tax credits and NOL carryforwards | 2,186 |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 2,186 |  |
Foreign Tax Credit |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Valuation allowance | (404) |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Valuation allowance | 404 |  |
Foreign Tax Credit | Federal |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Tax credits and NOL carryforwards | 615 |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 615 |  |
State Carryforward And Credits | State |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Tax credits and NOL carryforwards | 316 |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 316 |  |
Corporate AMT Credit Cards |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Tax credits and NOL carryforwards | 717 |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 717 |  |
NOL Carryforwards | State |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Valuation allowance | (102) |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Valuation allowance | 102 |  |
NOL Carryforwards | Foreign |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Tax credits and NOL carryforwards | 11 |  |
Valuation allowance | (11) |  |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 11 |  |
Valuation allowance | 11 |  |
Duke Energy Carolinas |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 217 | 194 |
Lease obligations | 88 | 86 |
Pension, post-retirement and other employee benefits | (33) | (41) |
Tax credits and NOL carryforwards | 522 | 445 |
Other | 11 | 29 |
Total deferred income tax assets | 805 | 713 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (1,350) | (1,213) |
Accelerated depreciation rates | (3,203) | (3,411) |
Regulatory assets and deferred debits, net | (304) | (468) |
Total deferred income tax liabilities | (4,857) | (5,092) |
Net deferred income tax liabilities | (4,052) | (4,379) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 522 | 445 |
Net operating loss carry forward | 47 | 2 | 97
Progress Energy |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 84 | 77 |
Lease obligations | 265 | 256 |
Pension, post-retirement and other employee benefits | (23) | (22) |
Tax credits and NOL carryforwards | 783 | 686 |
Other | 5 | 22 |
Total deferred income tax assets | 1,114 | 1,019 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (724) | (596) |
Accelerated depreciation rates | (4,608) | (4,557) |
Regulatory assets and deferred debits, net | (1,045) | (1,063) |
Total deferred income tax liabilities | (6,377) | (6,216) |
Net deferred income tax liabilities | (5,263) | (5,197) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 783 | 686 |
Net operating loss carry forward | 85 | 116 | 128
Duke Energy Progress |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 43 | 21 |
Lease obligations | 179 | 179 |
Pension, post-retirement and other employee benefits | (1) | (1) |
Tax credits and NOL carryforwards | 312 | 230 |
Other | 3 | 12 |
Total deferred income tax assets | 536 | 441 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (671) | (520) |
Accelerated depreciation rates | (1,624) | (1,823) |
Regulatory assets and deferred debits, net | (585) | (658) |
Total deferred income tax liabilities | (2,880) | (3,001) |
Net deferred income tax liabilities | (2,344) | (2,560) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 312 | 230 |
Net operating loss carry forward | 66 | 59 | 9
Duke Energy Florida |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 41 | 56 |
Lease obligations | 86 | 77 |
Pension, post-retirement and other employee benefits | (26) | (25) |
Tax credits and NOL carryforwards | 449 | 425 |
Other | 2 | 8 |
Total deferred income tax assets | 552 | 541 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (69) | (91) |
Accelerated depreciation rates | (3,047) | (2,778) |
Regulatory assets and deferred debits, net | (460) | (405) |
Total deferred income tax liabilities | (3,576) | (3,274) |
Net deferred income tax liabilities | (3,024) | (2,733) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 449 | 425 |
Net operating loss carry forward | 30 | 5 | 111
Duke Energy Ohio |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 17 | 13 |
Lease obligations | 2 | 4 |
Pension, post-retirement and other employee benefits | 6 | 5 |
Tax credits and NOL carryforwards | 70 | 44 |
Other | 4 | 5 |
Total deferred income tax assets | 99 | 71 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Accelerated depreciation rates | (1,361) | (1,314) |
Regulatory assets and deferred debits, net | (52) | (29) |
Total deferred income tax liabilities | (1,413) | (1,343) |
Net deferred income tax liabilities | (1,314) | (1,272) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 70 | 44 |
Net operating loss carry forward | 26 | 22 | 7
Duke Energy Indiana |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 15 | 18 |
Lease obligations | 12 | 15 |
Pension, post-retirement and other employee benefits | 1 | 2 |
Tax credits and NOL carryforwards | 145 | 154 |
Regulatory liabilities and deferred credits | 10 | 47 |
Investments and other assets |  | 1 |
Other |  | 5 |
Total deferred income tax assets | 183 | 242 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Accelerated depreciation rates | (1,677) | (1,678) |
Total deferred income tax liabilities | (1,677) | (1,678) |
Net deferred income tax liabilities | (1,494) | (1,436) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 145 | 154 |
Net operating loss carry forward | 8 | 54 | 13
Piedmont |  |  |
Deferred Tax Assets, Gross [Abstract] |  |  |
Deferred credits and other liabilities | 40 | 42 |
Lease obligations | 2 | 3 |
Pension, post-retirement and other employee benefits | (2) | (5) |
Tax credits and NOL carryforwards | 57 | 50 |
Other | 8 | 9 |
Total deferred income tax assets | 105 | 99 |
Deferred Tax Liabilities, Gross [Abstract] |  |  |
Investments and other assets | (48) | (37) |
Accelerated depreciation rates | (1,019) | (944) |
Regulatory assets and deferred debits, net | (56) | (51) |
Total deferred income tax liabilities | (1,123) | (1,032) |
Net deferred income tax liabilities | (1,018) | (933) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |  |
Tax credits and NOL carryforwards | 57 | 50 |
Net operating loss carry forward | $ 8 | $ 15 | $ 12

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