CONSOLIDATED STATEMENTS OF INCOME - OPCo - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
REVENUES
TOTAL REVENUES	$ 21,876	$ 19,721	$ 18,982
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	7,031	5,936	6,578
Other Operation	2,950	3,127	2,811
Maintenance	1,499	1,325	1,276
Asset Impairments and Other Related Charges	66	143	86
Depreciation and Amortization	3,380	3,290	3,090
Taxes Other Than Income Taxes	1,631	1,596	1,492
TOTAL EXPENSES	16,557	15,417	15,426
OPERATING INCOME	5,319	4,304	3,556
Other Income (Expense):
Other Income	48	65	64
Allowance for Equity Funds Used During Construction	245	211	175
Non-Service Cost Components of Net Periodic Benefit Cost	138	126	221
Interest Expense	(2,026)	(1,863)	(1,807)
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS	3,724	2,843	2,209
Income Tax Expense	129	(39)	55
Equity Earnings of Unconsolidated Subsidiaries	101	94	59
Nonrelated Party
REVENUES
TOTAL REVENUES	21,876	19,721	18,982
OHIO POWER COMPANY
REVENUES
TOTAL REVENUES	3,948	3,828	3,811
EXPENSES
Other Operation	1,267	1,198	1,092
Maintenance	253	256	212
Asset Impairments and Other Related Charges	18	53	0
Depreciation and Amortization	380	386	316
Taxes Other Than Income Taxes	574	560	507
TOTAL EXPENSES	3,435	3,362	3,342
OPERATING INCOME	513	466	469
Other Income (Expense):
Other Income	1	3	1
Allowance for Equity Funds Used During Construction	25	23	17
Non-Service Cost Components of Net Periodic Benefit Cost	17	15	26
Interest Expense	(158)	(148)	(131)
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS	398	359	382
Income Tax Expense	72	52	54
Equity Earnings of Unconsolidated Subsidiaries	2	(1)	0
NET INCOME	328	306	328
OHIO POWER COMPANY | Nonrelated Party
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	878	811	1,128
OHIO POWER COMPANY | Affiliated Entity
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	65	98	87
Electricity, Transmission and Distribution | OHIO POWER COMPANY
REVENUES
TOTAL REVENUES	3,891	3,793	3,768
Sales to AEP Affiliates | OHIO POWER COMPANY
REVENUES
TOTAL REVENUES	45	23	31
Other Revenues
REVENUES
TOTAL REVENUES	526	482	458
Other Revenues | OHIO POWER COMPANY
REVENUES
TOTAL REVENUES	$ 12	$ 12	$ 12