CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - AEP Texas - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
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)
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
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
Issuance of Long-term Debt	561.6	859.9
Retirement of Long-term Debt	(229.1)	(1,162.2)
Principal Payments for Finance Lease Obligations	(12.5)	(17.0)
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
Noncash Acquisitions Under Finance Leases	7.9	7.0
Construction Expenditures Included in Current Liabilities as of March 31,	1,040.9	837.0
AEP Texas
OPERATING ACTIVITIES
Net Income (Loss)	101.6	79.7
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	108.9	116.7
Deferred Income Taxes	12.5	6.6
Allowance for Equity Funds Used During Construction	(11.5)	(8.6)
Mark-to-Market of Risk Management Contracts	0.0	(0.2)
Property Taxes	(95.2)	(84.3)
Change in Other Noncurrent Assets	(6.1)	(17.2)
Change in Other Noncurrent Liabilities	(0.9)	3.0
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(9.5)	7.8
Materials and Supplies	13.7	(3.6)
Accounts Payable	(7.0)	11.6
Accrued Taxes, Net	47.6	42.6
Accrued Interest	45.1	32.3
Other Current Assets	2.4	1.4
Other Current Liabilities	(20.2)	(20.0)
Net Cash Flows from Operating Activities	181.4	167.8
INVESTING ACTIVITIES
Construction Expenditures	(450.4)	(331.2)
Change in Advances to Affiliates, Net	0.1	0.1
Other Investing Activities	11.8	21.1
Net Cash Flows Used for Investing Activities	(438.5)	(310.0)
FINANCING ACTIVITIES
Issuance of Long-term Debt	399.8	0.0
Change in Advances from Affiliates, Net	(140.5)	164.2
Retirement of Long-term Debt	(12.2)	(11.9)
Principal Payments for Finance Lease Obligations	(1.8)	(1.8)
Other Financing Activities	1.7	0.4
Net Cash Flows from Financing Activities	247.0	150.9
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(10.1)	8.7
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	23.6	34.1
Cash, Cash Equivalents and Restricted Cash at End of Period	13.5	42.8
SUPPLEMENTARY INFORMATION
Cash Paid for Interest, Net of Capitalized Amounts	24.5	26.9
Noncash Acquisitions Under Finance Leases	1.6	1.1
Construction Expenditures Included in Current Liabilities as of March 31,	$ 195.9	$ 158.3