CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDER’S EQUITY - AEP Texas - USD ($) $ in Millions	Total	Accumulated Other Comprehensive Income (Loss)	AEP Texas	AEP Texas Paid-in Capital	AEP Texas Retained Earnings	AEP Texas Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2023			$ 4,796.1	$ 2,079.6	$ 2,725.1	$ (8.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)			79.7		79.7
Other Comprehensive Income (Loss)	$ (6.8)	$ (6.8)	3.9			3.9
Ending balance at Mar. 31, 2024			4,879.7	2,079.6	2,804.8	(4.7)
Beginning balance at Dec. 31, 2024	26,943.8		4,884.6	2,092.4	2,795.2	(3.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)			101.6		101.6
Other Comprehensive Income (Loss)	23.4	$ 23.4	(0.2)			(0.2)
Ending balance at Mar. 31, 2025	$ 27,320.7		$ 4,986.0	$ 2,092.4	$ 2,896.8	$ (3.2)