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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2023
Changes in Carrying Amount of Goodwill |
|  | Corporate and Other |  | Generation & Marketing |  | AEP Consolidated
| (in millions)
Balance as of December 31, 2021 |  | $ | 37.1 |  |  | $ | 15.4 |  |  | $ | 52.5 |
Impairment Losses |  | — |  |  | — |  |  | — |
Balance as of December 31, 2022 |  | 37.1 |  |  | 15.4 |  |  | 52.5 |
Impairment Losses |  | — |  |  | — |  |  | — |
Balance as of December 31, 2023 |  | $ | 37.1 |  |  | $ | 15.4 |  |  | $ | 52.5 |

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