CONSOLIDATED STATEMENTS OF INCOME - 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
Loss on the Sale of the Competitive Contracted Renewables Portfolio	0	0	93
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
NET INCOME	3,696	2,976	2,213
Net Income Attributable to Noncontrolling Interests	116	9	5
EARNINGS ATTRIBUTABLE TO AEP MEMBER, Basic	3,580	2,967	2,208
EARNINGS ATTRIBUTABLE TO AEP MEMBER, Diluted	$ 3,580	$ 2,967	$ 2,208
WEIGHTED AVERAGE NUMBER OF BASIC AEP COMMON SHARES OUTSTANDING (in shares)	534,535,444	530,092,672	518,903,682
TOTAL BASIC EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS (in USD per share)	$ 6.70	$ 5.60	$ 4.26
WEIGHTED AVERAGE NUMBER OF DILUTED AEP COMMON SHARES OUTSTANDING (in shares)	537,467,865	531,337,703	520,206,258
TOTAL DILUTED EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS (in USD per share)	$ 6.66	$ 5.58	$ 4.24
Vertically Integrated Utilities Revenues
REVENUES
TOTAL REVENUES	$ 12,556	$ 11,414	$ 11,304
Transmission and Distribution Utilities
REVENUES
TOTAL REVENUES	6,097	5,880	5,677
Generation & Marketing
REVENUES
TOTAL REVENUES	2,697	1,945	1,543
Other Revenues
REVENUES
TOTAL REVENUES	$ 526	$ 482	$ 458