Public Utilities, Amortization, Amount Of Deferred Tax Regulatory Liabilities

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- Definition

Public Utilities, Amortization, Amount Of Deferred Tax Regulatory Liabilities, Period

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- Definition

Public Utilities, Incremental Operation And Maintenance Costs

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- Definition

Public Utilities, Net Annual Revenue Decrease

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- Definition

Public Utilities, Net Annual Revenue Increase

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- Definition

Public Utilities, Number Of Intervenors

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage of public utility's requested debt to capital, including debt and equity.

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- Definition

Percentage of public utility's requested equity to capital, including debt and equity.

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

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- Definition

Percentage of public utility's requested return on equity.

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No definition available.

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RATE MATTERS - OPCo Rate Matters (Details) - OHIO POWER COMPANY $ in Millions	1 Months Ended
	May 31, 2026 intervenor	Jan. 31, 2026 USD ($)	May 31, 2025 USD ($)	Sep. 30, 2026 USD ($)
2025 Ohio Base Rate Case
Public Utilities, General Disclosures [Line Items]
Requested annual base rate increase (decrease)			$ 97
Requested return on equity		9.84%	10.90%
Requested debt capital structure		49.10%	49.10%
Requested equity capital structure		50.90%	50.90%
Settlement agreement annual increase		$ 11
Public utilities, net annual revenue settlement of amortization		$ 82
Public utilities, net annual revenue settlement of amortization period		18 months
Public utilities, net annual revenue decrease		$ 59
Public utilities, number of intervenors \| intervenor	2
March 2026 Storm Cost
Public Utilities, General Disclosures [Line Items]
Public utilities, incremental operation and maintenance costs				$ 27
August 2026 Storm Cost
Public Utilities, General Disclosures [Line Items]
Public utilities, incremental operation and maintenance costs				$ 30