CONSOLIDATED STATEMENTS OF CASH FLOWS - SWEPCo - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
OPERATING ACTIVITIES
Net Income	$ 2,975.8	$ 2,212.6	$ 2,305.6
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	3,289.9	3,090.4	3,202.8
Deferred Income Taxes	58.3	185.1	(137.2)
Asset Impairments and Other Related Charges	142.5	85.6	48.8
Allowance for Equity Funds Used During Construction	(211.0)	(174.9)	(133.7)
Mark-to-Market of Risk Management Contracts	(80.4)	8.8	15.5
Deferred Fuel Over/Under-Recovery, Net	277.0	892.8	(319.2)
Change in Regulatory Assets	(174.3)	(315.8)	(46.7)
Change in Other Noncurrent Assets	(347.6)	(465.1)	(187.7)
Change in Other Noncurrent Liabilities	306.3	29.0	337.8
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(156.0)	236.5	(681.7)
Fuel, Materials and Supplies	171.6	(504.0)	(313.9)
Accounts Payable	85.1	(253.2)	489.2
Accrued Taxes, Net	240.2	22.5	105.4
Other Current Assets	(13.2)	(43.9)	109.0
Other Current Liabilities	182.6	(161.4)	54.3
Net Cash Flows from Operating Activities	6,804.3	5,012.2	5,288.0
INVESTING ACTIVITIES
Construction Expenditures	(7,630.7)	(7,378.3)	(6,671.7)
Acquisitions of Renewable Energy Facilities	(399.5)	(155.2)	(1,207.3)
Other Investing Activities	141.9	122.1	50.3
Net Cash Flows Used for Investing Activities	(7,596.5)	(6,266.7)	(7,751.8)
FINANCING ACTIVITIES
Issuance of Long-term Debt	5,117.0	5,462.8	4,649.7
Change in Short-term Debt – Nonaffiliated	(159.1)	(1,223.1)	1,650.4
Retirement of Long-term Debt	(2,685.0)	(2,196.1)	(2,345.4)
Principal Payments for Finance Lease Obligations	(64.8)	(68.3)	(309.5)
Dividends Paid on Common Stock	(1,903.9)	(1,760.4)	(1,645.2)
Other Financing Activities	(49.8)	(78.6)	(105.4)
Net Cash Flows from Financing Activities	659.2	1,077.0	2,568.9
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(133.0)	(177.5)	105.1
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	379.0	556.5	451.4
Cash, Cash Equivalents and Restricted Cash at End of Period	246.0	379.0	556.5
SUPPLEMENTARY INFORMATION
Cash Paid for Interest, Net of Capitalized Amounts	1,837.8	1,673.5	1,286.3
Net Cash Paid (Received) for Income Taxes	133.4	78.4	116.8
Construction Expenditures Included in Current Liabilities as of December 31,	1,312.0	842.4	1,258.9
SOUTHWESTERN ELECTRIC POWER COMPANY
OPERATING ACTIVITIES
Net Income	325.7	223.8	294.3
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	389.3	342.8	324.8
Deferred Income Taxes	(74.3)	54.0	9.4
Asset Impairments and Other Related Charges	0.0	85.6	0.0
Allowance for Equity Funds Used During Construction	(13.5)	(11.5)	(4.9)
Mark-to-Market of Risk Management Contracts	(19.8)	19.1	(6.2)
Deferred Fuel Over/Under-Recovery, Net	156.1	184.3	(86.4)
Change in Regulatory Assets	(50.8)	(60.8)	7.6
Provision for Refund – Turk Plant	79.2	0.0	0.0
Change in Other Noncurrent Assets	(18.9)	(40.5)	42.9
Change in Other Noncurrent Liabilities	(41.4)	11.0	18.3
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(3.3)	20.1	(28.2)
Fuel, Materials and Supplies	29.4	(31.4)	(9.3)
Accounts Payable	2.5	(8.4)	34.1
Accrued Taxes, Net	(7.7)	(4.5)	9.8
Provision for Refund – Turk Plant	68.3	0.0	0.0
Other Current Assets	9.9	20.2	(9.8)
Other Current Liabilities	(13.9)	(0.8)	(9.8)
Net Cash Flows from Operating Activities	816.8	803.0	586.6
INVESTING ACTIVITIES
Construction Expenditures	(740.5)	(780.5)	(586.4)
Change in Advances to Affiliates, Net	(0.1)	(0.1)	153.8
Acquisitions of Renewable Energy Facilities	(399.5)	0.0	(658.0)
Other Investing Activities	11.4	3.9	5.5
Net Cash Flows Used for Investing Activities	(1,128.7)	(776.7)	(1,085.1)
FINANCING ACTIVITIES
Capital Contribution from Parent	58.6	50.0	350.0
Return of Capital to Parent	(1.1)	0.0	0.0
Issuance of Long-term Debt	336.3	346.8	0.0
Change in Short-term Debt – Nonaffiliated	1.2	4.3	0.0
Change in Advances from Affiliates, Net	186.3	(222.0)	310.7
Retirement of Long-term Debt	0.0	(94.1)	(6.2)
Principal Payments for Finance Lease Obligations	(14.0)	(19.1)	(10.8)
Dividends Paid on Common Stock	(250.0)	(175.0)	(105.0)
Dividends Paid on Common Stock – Nonaffiliated	(4.3)	(4.0)	(3.4)
Other Financing Activities	1.1	0.8	0.4
Net Cash Flows from Financing Activities	314.1	(112.3)	535.7
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	2.2	(86.0)	37.2
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	2.4	88.4	51.2
Cash, Cash Equivalents and Restricted Cash at End of Period	4.6	2.4	88.4
SUPPLEMENTARY INFORMATION
Cash Paid for Interest, Net of Capitalized Amounts	139.0	128.9	131.2
Net Cash Paid (Received) for Income Taxes	(15.1)	(41.0)	(29.1)
Cash Paid (Received) for Transferable Tax Credits	(88.6)	(41.4)	0.0
Noncash Acquisitions Under Finance Leases	2.3	7.1	3.6
Construction Expenditures Included in Current Liabilities as of December 31,	$ 137.3	$ 63.7	$ 105.6