CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
REVENUES
TOTAL REVENUES	$ 19,721.3	$ 18,982.3	$ 19,639.5
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	5,936.3	6,578.3	7,097.9
Other Operation	3,127.6	2,810.5	2,878.1
Maintenance	1,325.1	1,276.3	1,249.4
Loss on the Expected Sale of the Kentucky Operations	0.0	0.0	363.3
Asset Impairments and Other Related Charges	142.5	85.6	48.8
Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset	0.0	0.0	(37.0)
Gain on the Sale of Mineral Rights	0.0	0.0	(116.3)
Loss on the Sale of the Competitive Contracted Renewables Portfolio	0.0	92.7	0.0
Depreciation and Amortization	3,289.9	3,090.4	3,202.8
Taxes Other Than Income Taxes	1,596.3	1,492.3	1,469.8
TOTAL EXPENSES	15,417.7	15,426.1	16,156.8
OPERATING INCOME	4,303.6	3,556.2	3,482.7
Other Income (Expense):
Other Income	65.1	63.4	11.6
Allowance for Equity Funds Used During Construction	211.0	174.9	133.7
Non-Service Cost Components of Net Periodic Benefit Cost	126.0	221.1	188.5
Interest Expense	(1,862.8)	(1,806.9)	(1,396.1)
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS)	2,842.9	2,208.7	2,420.4
Income Tax Expense (Benefit)	(39.2)	54.6	5.4
Equity Earnings (Loss) of Unconsolidated Subsidiaries	93.7	58.5	(109.4)
NET INCOME	2,975.8	2,212.6	2,305.6
Net Income (Loss) Attributable to Noncontrolling Interests	8.7	4.5	(1.6)
EARNINGS ATTRIBUTABLE TO COMMON SHAREHOLDERS, Basic	2,967.1	2,208.1	2,307.2
EARNINGS ATTRIBUTABLE TO COMMON SHAREHOLDERS, Diluted	$ 2,967.1	$ 2,208.1	$ 2,307.2
WEIGHTED AVERAGE NUMBER OF BASIC AEP COMMON SHARES OUTSTANDING (in shares)	530,092,672	518,903,682	511,841,946
TOTAL BASIC EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS (in USD per share)	$ 5.60	$ 4.26	$ 4.51
WEIGHTED AVERAGE NUMBER OF DILUTED AEP COMMON SHARES OUTSTANDING (in shares)	531,337,703	520,206,258	513,484,609
TOTAL DILUTED EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS (in USD per share)	$ 5.58	$ 4.24	$ 4.49
Vertically Integrated Utilities Revenues
REVENUES
TOTAL REVENUES	$ 11,414.0	$ 11,303.7	$ 11,292.8
Transmission and Distribution Utilities
REVENUES
TOTAL REVENUES	5,879.6	5,677.2	5,489.6
Generation & Marketing
REVENUES
TOTAL REVENUES	1,944.7	1,543.3	2,448.9
Other Revenues
REVENUES
TOTAL REVENUES	$ 483.0	$ 458.1	$ 408.2