CONDENSED CONSOLIDATED BALANCE SHEETS - AEP Transmission Holdco - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Accounts Receivable:
Customers	$ 1,119.3	$ 1,100.1
Miscellaneous	52.4	64.1
Total Accounts Receivable	2,618.0	2,631.9
Prepayments and Other Current Assets	324.6	285.9
TOTAL CURRENT ASSETS	5,936.9	5,788.8
PROPERTY, PLANT AND EQUIPMENT
Transmission	39,375.6	38,871.9
Other Property, Plant and Equipment	7,502.7	7,491.6
Construction Work in Progress	6,835.4	6,346.9
Total Property, Plant and Equipment	110,174.9	108,602.0
Accumulated Depreciation and Amortization	26,612.2	26,186.4
TOTAL PROPERTY, PLANT AND EQUIPMENT – NET	83,562.7	82,415.6
OTHER NONCURRENT ASSETS
Regulatory Assets	5,133.6	5,129.2
Deferred Charges and Other Noncurrent Assets	4,036.8	3,873.3
TOTAL OTHER NONCURRENT ASSETS	14,895.0	14,873.6
TOTAL ASSETS	104,394.6	103,078.0
CURRENT LIABILITIES
Accounts Payable	2,380.8	2,637.6
Long-term Debt Due Within One Year	4,178.9	3,335.0
Accrued Taxes	1,797.0	1,922.1
Accrued Interest	589.4	453.3
Obligations Under Operating Leases	92.8	91.9
Other Current Liabilities	1,257.2	1,490.9
TOTAL CURRENT LIABILITIES	14,242.3	13,009.3
NONCURRENT LIABILITIES
Long-term Debt	38,810.9	39,307.8
Deferred Income Taxes	10,199.1	9,972.4
Regulatory Liabilities and Deferred Investment Tax Credits	8,294.3	8,344.0
Obligations Under Operating Leases	501.5	504.3
Deferred Credits and Other Noncurrent Liabilities	828.1	800.6
TOTAL NONCURRENT LIABILITIES	62,741.6	63,044.8
TOTAL LIABILITIES	76,983.9	76,054.1
Rate Matters (Note 4)
Commitments and Contingencies (Note 5)
MEMBER’S EQUITY
Retained Earnings	14,169.4	13,869.2
TOTAL LIABILITIES, MEZZANINE EQUITY AND TOTAL EQUITY	104,394.6	103,078.0
AEPTCo
CURRENT ASSETS
Advances to Affiliates	60.6	30.4
Accounts Receivable:
Customers	54.2	58.9
Miscellaneous	0.0	1.3
Total Accounts Receivable	215.7	194.3
Prepayments and Other Current Assets	10.5	11.1
TOTAL CURRENT ASSETS	286.8	235.8
PROPERTY, PLANT AND EQUIPMENT
Transmission	15,172.4	14,913.4
Other Property, Plant and Equipment	542.6	516.1
Construction Work in Progress	2,088.1	1,965.4
Total Property, Plant and Equipment	17,803.1	17,394.9
Accumulated Depreciation and Amortization	1,666.4	1,578.4
TOTAL PROPERTY, PLANT AND EQUIPMENT – NET	16,136.7	15,816.5
OTHER NONCURRENT ASSETS
Regulatory Assets	0.3	0.4
Deferred Property Taxes	269.6	308.9
Deferred Charges and Other Noncurrent Assets	9.4	8.7
TOTAL OTHER NONCURRENT ASSETS	279.3	318.0
TOTAL ASSETS	16,702.8	16,370.3
CURRENT LIABILITIES
Accounts Payable	339.5	360.5
Long-term Debt Due Within One Year	40.0	90.0
Accrued Taxes	590.6	665.9
Accrued Interest	65.8	44.9
Obligations Under Operating Leases	1.2	1.3
Other Current Liabilities	37.9	44.5
TOTAL CURRENT LIABILITIES	1,467.7	1,408.8
NONCURRENT LIABILITIES
Long-term Debt	5,679.0	5,678.1
Deferred Income Taxes	1,317.3	1,278.6
Regulatory Liabilities and Deferred Investment Tax Credits	902.3	878.4
Obligations Under Operating Leases	1.0	1.2
Deferred Credits and Other Noncurrent Liabilities	183.1	174.3
TOTAL NONCURRENT LIABILITIES	8,082.7	8,010.6
TOTAL LIABILITIES	9,550.4	9,419.4
Rate Matters (Note 4)
Commitments and Contingencies (Note 5)
MEMBER’S EQUITY
Paid-in Capital	3,133.1	3,100.6
Retained Earnings	4,019.3	3,850.3
TOTAL MEMBER’S EQUITY	7,152.4	6,950.9
TOTAL LIABILITIES, MEZZANINE EQUITY AND TOTAL EQUITY	16,702.8	16,370.3
AEPTCo | Affiliated Entity
Accounts Receivable:
Affiliated Companies	161.5	134.1
CURRENT LIABILITIES
Advances from Affiliates	285.6	84.7
Accounts Payable	$ 107.1	$ 117.0