CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SWEPCo - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
OPERATING ACTIVITIES
Net Income	$ 802.2	$ 1,005.7
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	833.4	787.1
Deferred Income Taxes	165.2	(113.3)
Allowance for Equity Funds Used During Construction	(57.3)	(43.6)
Mark-to-Market of Risk Management Contracts	(14.8)	40.9
Property Taxes	(88.4)	(89.2)
Deferred Fuel Over/Under-Recovery, Net	(74.5)	43.4
Change in Other Noncurrent Assets	(130.9)	(74.5)
Change in Other Noncurrent Liabilities	141.5	61.8
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(1.5)	34.9
Fuel, Materials and Supplies	138.6	104.3
Accounts Payable	6.2	(99.5)
Accrued Taxes, Net	(153.4)	(57.7)
Other Current Assets	(23.6)	(91.3)
Other Current Liabilities	(92.7)	(66.8)
Net Cash Flows from Operating Activities	1,450.0	1,442.2
INVESTING ACTIVITIES
Construction Expenditures	(2,100.2)	(1,761.7)
Other Investing Activities	50.2	29.6
Net Cash Flows Used for Investing Activities	(2,102.0)	(1,669.3)
FINANCING ACTIVITIES
Change in Short-term Debt – Nonaffiliated	752.4	840.9
Principal Payments for Finance Lease Obligations	(12.5)	(17.0)
Dividends Paid on Common Stock	(501.0)	(466.9)
Other Financing Activities	(18.7)	(31.9)
Net Cash Flows from Financing Activities	698.0	129.9
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	46.0	(97.2)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	246.0	379.0
Cash, Cash Equivalents and Restricted Cash at End of Period	292.0	281.8
SUPPLEMENTARY INFORMATION
Cash Paid for Interest, Net of Capitalized Amounts	350.2	368.3
Cash Paid (Received) for Transferable Tax Credits	7.1	16.1
Construction Expenditures Included in Current Liabilities as of March 31,	1,040.9	837.0
SWEPCo
OPERATING ACTIVITIES
Net Income	49.5	209.6
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	98.2	78.7
Deferred Income Taxes	36.8	(118.5)
Allowance for Equity Funds Used During Construction	(3.3)	(3.4)
Mark-to-Market of Risk Management Contracts	(1.7)	1.7
Property Taxes	(75.3)	(74.3)
Deferred Fuel Over/Under-Recovery, Net	22.7	22.8
Change in Other Noncurrent Assets	(21.3)	(10.2)
Change in Other Noncurrent Liabilities	(8.8)	(0.3)
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	6.7	(9.7)
Fuel, Materials and Supplies	13.2	9.4
Accounts Payable	(6.7)	(29.6)
Accrued Taxes, Net	49.0	67.0
Other Current Assets	(0.5)	(17.7)
Other Current Liabilities	(39.5)	(55.7)
Net Cash Flows from Operating Activities	119.0	69.8
INVESTING ACTIVITIES
Construction Expenditures	(235.2)	(182.6)
Change in Advances to Affiliates, Net	0.0	(0.1)
Other Investing Activities	0.1	3.0
Net Cash Flows Used for Investing Activities	(235.1)	(179.7)
FINANCING ACTIVITIES
Change in Short-term Debt – Nonaffiliated	2.8	1.1
Change in Advances from Affiliates, Net	124.8	165.8
Principal Payments for Finance Lease Obligations	(1.0)	(4.4)
Dividends Paid on Common Stock	0.0	(50.0)
Dividends Paid on Common Stock – Nonaffiliated	(1.0)	(1.4)
Other Financing Activities	0.5	0.2
Net Cash Flows from Financing Activities	126.1	111.3
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	10.0	1.4
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	4.6	2.4
Cash, Cash Equivalents and Restricted Cash at End of Period	14.6	3.8
SUPPLEMENTARY INFORMATION
Cash Paid for Interest, Net of Capitalized Amounts	39.3	41.2
Cash Paid (Received) for Transferable Tax Credits	(8.7)	(19.9)
Noncash Acquisitions Under Finance Leases	1.1	0.4
Construction Expenditures Included in Current Liabilities as of March 31,	$ 89.0	$ 79.4