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Business Segments (Business Segment Data) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | $ 7,671 | $ 7,276 |
Segment income (loss) | 1,102 | 910 |
Less: Noncontrolling interests | (13) | 43 |
Add: Preferred stock dividend | 39 | 39 |
Discontinued operations | (3) | (145) |
Net Income | 1,151 | 761 |
Segment assets | 178,670 |  | $ 176,893
Impairment of assets and other charges | 1 | 8 |
Operation, maintenance and other | 1,379 | 1,310 |
Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 678 | 709 |
Segment income (loss) | 94 | 100 |
Net Income | 94 | 100 |
Segment assets | 12,305 |  | $ 12,216
Operation, maintenance and other | 126 | 123 |
Total Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 7,664 | 7,269 |
Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 6,785 | 6,381 |
Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 879 | 888 |
Operating Segments | Total Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 7,705 | 7,309 |
Segment income (loss) | 1,305 | 1,078 |
Segment assets | 174,070 |  |
Operating Segments | Total Reportable Segments | Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 678 | 709 |
Segment income (loss) | 96 | 101 |
Segment assets | 12,285 |  |
Operating Segments | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 6,803 | 6,398 |
Segment income (loss) | 1,021 | 791 |
Segment assets | 156,606 |  |
Operating Segments | Electric Utilities and Infrastructure | Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 458 | 474 |
Segment income (loss) | 55 | 49 |
Segment assets | 7,935 |  |
Operating Segments | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 902 | 911 |
Segment income (loss) | 284 | 287 |
Segment assets | 17,464 |  |
Operating Segments | Gas Utilities and Infrastructure | Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 220 | 235 |
Segment income (loss) | 41 | 52 |
Segment assets | 4,350 |  |
Other | Other | Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 0 | 0 |
Segment income (loss) | (2) | (1) |
Segment assets | 13 |  |
Corporate And Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 38 | 31 |
Segment income (loss) | (203) | (168) |
Segment assets | 4,600 |  |
Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | (72) | (64) |
Segment income (loss) | 0 | 0 |
Segment assets | 0 |  |
Eliminations | Duke Energy Ohio |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 0 |  |
Segment income (loss) | 0 |  |
Segment assets | 7 |  |
Eliminations | Total Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 41 | 40 |
Eliminations | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 18 | 17 |
Eliminations | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 23 | 23 |
Eliminations | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 31 | 24 |
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | $ 7 | $ 7 |

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