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v3.22.4

Business Segments (Narrative) (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) Segment segment | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 7,351 | $ 7,842 | $ 6,564 | $ 7,011 | $ 6,117 | $ 6,834 | $ 5,638 | $ 6,032 | $ 28,768 | $ 24,621 | $ 23,366
Number of reportable segments | Segment |  |  |  |  |  |  |  |  | 2 |  |
Duke Energy Progress |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 6,753 | 5,780 | 5,422
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 1 |  |
Duke Energy Ohio |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 2,514 | $ 2,037 | $ 1,858
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 2 |  |
Revenues | Duke Energy Progress | Customer Concentration | One customer |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 684 |  |

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