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Investments in Unconsolidated Affiliates (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments In Unconsolidated Affiliates [Line Items] |
Investments in Equity Method Unconsolidated Affiliates | The following table presents Duke Energy’s investments in unconsolidated affiliates accounted for under the equity method, as well as the respective equity in earnings, by segment, for periods presented in this filing.
| Years Ended December 31,
| 2023 |  | 2022 |  |  |  | 2021
|  |  | Equity in |  |  |  | Equity in |  |  |  | Equity in
(in millions) | Investments |  | earnings |  | Investments |  | earnings |  |  |  | earnings
Electric Utilities and Infrastructure | $ | 97 |  |  | $ | 7 |  |  | $ | 99 |  |  | $ | 7 |  |  |  |  | $ | 7 |
Gas Utilities and Infrastructure | 259 |  |  | 40 |  |  | 240 |  |  | 21 |  |  |  |  | 8 |
Other | 136 |  |  | 66 |  |  | 116 |  |  | 85 |  |  |  |  | 47 |
Total | $ | 492 |  |  | $ | 113 |  |  | $ | 455 |  |  | $ | 113 |  |  |  |  | $ | 62 |

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