| Segment / region | Type | Fiscal year | Currency | Revenue (millions) | Share of revenue |
|---|---|---|---|---|---|
| Transmission And Distribution Companies | Product | 2025 | USD | 6,097.0 | 65.4% |
| Generation And Marketing | Product | 2025 | USD | 2,697.0 | 28.9% |
| Product and Service, Other | Product | 2025 | USD | 526.0 | 5.6% |
| Transmission And Distribution Companies | Product | 2024 | USD | 5,879.6 | 70.8% |
| Generation And Marketing | Product | 2024 | USD | 1,944.7 | 23.4% |
| Product and Service, Other | Product | 2024 | USD | 483.0 | 5.8% |
| Vertically Integrated Utilities | Product | 2023 | USD | 11,459.9 | 54.6% |
| Transmission And Distribution Companies | Product | 2023 | USD | 5,713.3 | 27.2% |
| Generation And Marketing | Product | 2023 | USD | 2,036.7 | 9.7% |
| AEP Transmission Holdco | Product | 2023 | USD | 1,765.7 | 8.4% |
| Vertically Integrated Utilities | Product | 2022 | USD | 11,477.5 | 54.2% |
| Transmission And Distribution Companies | Product | 2022 | USD | 5,520.2 | 26.1% |
| Generation And Marketing | Product | 2022 | USD | 2,466.9 | 11.7% |
| AEP Transmission Holdco | Product | 2022 | USD | 1,708.8 | 8.1% |
| Vertically Integrated Utilities | Product | 2021 | USD | 9,998.5 | 55.0% |
| Transmission And Distribution Companies | Product | 2021 | USD | 4,492.9 | 24.7% |
| Generation And Marketing | Product | 2021 | USD | 2,163.7 | 11.9% |
| AEP Transmission Holdco | Product | 2021 | USD | 1,526.2 | 8.4% |
| Vertically Integrated Utilities | Product | 2020 | USD | 8,882.6 | 54.7% |
| Transmission And Distribution Companies | Product | 2020 | USD | 4,345.9 | 26.8% |
| Generation And Marketing | Product | 2020 | USD | 1,725.6 | 10.6% |
| AEP Transmission Holdco | Product | 2020 | USD | 1,279.4 | 7.9% |
Product and geographic breakdowns describe the same revenue from different perspectives and should not be added together.