CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - PSO - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
OTHER COMPREHENSIVE LOSS, NET OF TAXES
Cash Flow Hedges, Net of Tax	$ (15)	$ 23
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	860	824
PUBLIC SERVICE COMPANY OF OKLAHOMA
Net Income	15	28
OTHER COMPREHENSIVE LOSS, NET OF TAXES
Cash Flow Hedges, Net of Tax	0	(1)
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	$ 15	$ 27