CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net Income	$ 903	$ 802
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAXES
Cash Flow Hedges, Net of Tax	(15)	23
Amortization of Pension and OPEB Deferred Costs, Net of Tax	1	1
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(14)	24
TOTAL COMPREHENSIVE INCOME	889	826
Total Comprehensive Income Attributable To Noncontrolling Interests	29	2
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	$ 860	$ 824