CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
CURRENT ASSETS
Cash and Cash Equivalents	$ 1,067.7	$ 202.9
Restricted Cash	39.1	43.1
Other Temporary Investments	225.4	215.4
Accounts Receivable:
Customers	1,141.4	1,100.1
Accrued Unbilled Revenues	355.0	367.0
Pledged Accounts Receivable – AEP Credit	1,336.2	1,161.5
Miscellaneous	63.2	64.1
Allowance for Credit Losses	(62.7)	(60.8)
Total Accounts Receivable	2,833.1	2,631.9
Fuel	599.0	748.9
Materials and Supplies	986.7	966.2
Risk Management Assets	407.9	210.4
Accrued Tax Benefits	59.7	38.2
Regulatory Asset for Under-Recovered Fuel Costs	380.6	445.9
Prepayments and Other Current Assets	260.8	285.9
TOTAL CURRENT ASSETS	6,860.0	5,788.8
PROPERTY, PLANT AND EQUIPMENT
Generation	26,442.2	24,829.7
Transmission	40,987.3	38,871.9
Distribution	32,618.2	31,061.9
Other Property, Plant and Equipment (Including Coal Mining and Nuclear Fuel)	8,385.1	7,491.6
Construction Work in Progress	7,456.7	6,346.9
Total Property, Plant and Equipment	115,889.5	108,602.0
Accumulated Depreciation and Amortization	27,871.8	26,186.4
TOTAL PROPERTY, PLANT AND EQUIPMENT – NET	88,017.7	82,415.6
OTHER NONCURRENT ASSETS
Regulatory Assets	4,950.2	5,129.2
Securitized Assets	952.9	554.3
Spent Nuclear Fuel and Decommissioning Trusts	4,858.9	4,395.1
Goodwill	52.5	52.5
Long-term Risk Management Assets	264.6	289.1
Operating Lease Assets	578.2	580.1
Deferred Charges and Other Noncurrent Assets	3,718.5	3,873.3
TOTAL OTHER NONCURRENT ASSETS	15,375.8	14,873.6
TOTAL ASSETS	110,253.5	103,078.0
CURRENT LIABILITIES
Accounts Payable	2,806.7	2,637.6
Short-term Debt:
Securitized Debt for Receivables – AEP Credit	900.0	900.0
Other Short-term Debt	257.7	1,623.8
Total Short-term Debt	1,157.7	2,523.8
Long-term Debt Due Within One Year	1,898.6	3,335.0
Risk Management Liabilities	122.7	100.0
Customer Deposits	498.5	454.7
Accrued Taxes	1,257.2	1,922.1
Accrued Interest	606.4	453.3
Obligations Under Operating Leases	98.4	91.9
Other Current Liabilities	1,551.4	1,490.9
TOTAL CURRENT LIABILITIES	9,997.6	13,009.3
NONCURRENT LIABILITIES
Long-term Debt	44,239.0	39,307.8
Long-term Risk Management Liabilities	186.9	224.4
Deferred Income Taxes	10,713.9	9,972.4
Regulatory Liabilities and Deferred Investment Tax Credits	8,320.0	8,344.0
Asset Retirement Obligations	3,647.1	3,530.6
Employee Benefits and Pension Obligations	268.1	360.7
Obligations Under Operating Leases	496.3	504.3
Deferred Credits and Other Noncurrent Liabilities	844.6	800.6
TOTAL NONCURRENT LIABILITIES	68,715.9	63,044.8
TOTAL LIABILITIES	78,713.5	76,054.1
Rate Matters (Note 4)
Commitments and Contingencies (Note 5)
MEZZANINE EQUITY
Contingently Redeemable Performance Share Awards	60.7	37.8
TOTAL MEZZANINE EQUITY	60.7	37.8
EQUITY
Common Stock	3,486.0	3,471.6
Paid-in Capital	11,561.8	9,606.1
Retained Earnings	15,369.3	13,869.2
Accumulated Other Comprehensive Income (Loss)	(27.8)	(3.1)
TOTAL AEP COMMON SHAREHOLDERS’ EQUITY	30,389.3	26,943.8
Noncontrolling Interests	1,090.0	42.3
TOTAL EQUITY	31,479.3	26,986.1
TOTAL LIABILITIES, MEZZANINE EQUITY AND TOTAL EQUITY	$ 110,253.5	$ 103,078.0