RATE MATTERS (Tables)

12 Months Ended

Dec. 31, 2025

Regulated Operations [Abstract]

Schedule of Regulatory Asset, Proposed Securitization Items

See the summarization of the proposed securitization items in the table below:

Proposed Securitized Items	APCo		WPCo		Total
	(in millions)
Undepreciated Utility Plant Balances of Amos, Mitchell and Mountaineer (as of December 31, 2022)	$	1,145	$	559	$	1,704
ENEC Under-Recovery Regulatory Assets	167		246		413
Forecasted Undepreciated CCR and ELG Investments of Amos, Mitchell and Mountaineer (as of November 30, 2024)	88		149		237
Deferred Storm Other Operation and Maintenance Expense Regulatory Assets	155		3		158
Upfront Financing Costs	10		6		16
Total	$	1,565	$	963	$	2,528

Schedule of FERC Annual Revenue Requirement

The annual revenue requirement increase as a result of the transition to stand-alone treatment of NOLCs for transmission formula rates is shown in the table below:

2021		2022		2023		2024		2025		Total
(in millions)
$	78	$	68	$	61	$	52	$	49	$	308

Schedule of FERC Matters, Statement Of Income Impact

The table below summarizes the impact to the statements of income recorded by the Registrants in the second quarter of 2025:

	AEP		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Total Revenues	$	270	$	214	$	6	$	11	$	—	$	6	$	27
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	(24)		—		(17)		—		—		—		—
Other Operation	53		—		15		(6)		—		19		10
Income (Loss) Before Income Tax Expense (Benefit)	241		214		8		17		—		(13)		17
Income Tax Expense (Benefit)	(313)		(203)		(21)		(28)		—		(16)		(39)
Net Income	554		417		29		45		—		3		56
Net Income Attributable to Noncontrolling Interest	55		55		—		—		—		—		—
Earnings Attributable to Common Shareholder	$	499	$	362	$	29	$	45	$	—	$	3	$	56