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Voluntary Severance Program (Details) $ in Millions | 3 Months Ended
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Jun. 30, 2024 USD ($)
Employees Participating in Voluntary Severance Program | 1,000
Severance Costs | $ 122.0
Number of Eligible Employees | 7,400
Total Number of Employees | 16,800
AEP Texas Inc. [Member] |
Severance Costs | $ 19.8
AEP Transmission Co [Member] |
Severance Costs | 10.7
Appalachian Power Co [Member] |
Severance Costs | 26.5
Indiana Michigan Power Co [Member] |
Severance Costs | 14.8
Ohio Power Co [Member] |
Severance Costs | 14.8
Public Service Co Of Oklahoma [Member] |
Severance Costs | 10.1
Southwestern Electric Power Co [Member] |
Severance Costs | $ 16.9

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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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