CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - APCo - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
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 ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	860	824
APPALACHIAN POWER COMPANY
Net Income	195	165
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAXES
Cash Flow Hedges, Net of Tax	0	0
Amortization of Pension and OPEB Deferred Costs, Net of Tax	0	0
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	0	0
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	$ 195	$ 165