CONSOLIDATED BALANCE SHEETS - SWEPCo (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Restricted Cash	$ 43.1	$ 48.9
Materials and Supplies	966.2	1,025.8
Other Property, Plant and Equipment	7,491.6	6,484.9
Accumulated Depreciation and Amortization	26,186.4	24,553.0
Securitized Assets	554.3	336.3
Long-term Debt Due Within One Year	3,335.0	2,490.5
Long-term Debt	$ 39,307.8	$ 37,652.7
Common Stock – Par Value (in USD per share)	$ 6.50	$ 6.50
Common Stock – Shares Authorized (in shares)	600,000,000	600,000,000
Subsidiaries
Restricted Cash	$ 43.1	$ 48.9
Long-term Debt Due Within One Year	216.5	207.2
Long-term Debt	826.5	556.3
SOUTHWESTERN ELECTRIC POWER COMPANY
Restricted Cash	3.4	0.0
Materials and Supplies	81.4	88.4
Other Property, Plant and Equipment	940.4	814.4
Accumulated Depreciation and Amortization	3,280.0	3,087.2
Securitized Assets	331.4	0.0
Long-term Debt Due Within One Year	22.7	0.0
Long-term Debt	$ 3,958.1	$ 3,646.9
Common Stock – Par Value (in USD per share)	$ 18	$ 18
Common Stock – Shares Authorized (in shares)	3,680	3,680
Common Stock – Shares Outstanding (in shares)	3,680	3,680
SOUTHWESTERN ELECTRIC POWER COMPANY | Subsidiaries
Restricted Cash	$ 3.4	$ 0.0
Securitized Assets	331.4	0.0
Long-term Debt Due Within One Year	22.7	0.0
Long-term Debt	308.7	0.0
SOUTHWESTERN ELECTRIC POWER COMPANY | Sabine
Materials and Supplies	1.5	3.9
Other Property, Plant and Equipment	166.8	182.7
Accumulated Depreciation and Amortization	$ 166.8	$ 182.7