CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - SWEPCo - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings		Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	SOUTHWESTERN ELECTRIC POWER COMPANY	SOUTHWESTERN ELECTRIC POWER COMPANY Common Stock	SOUTHWESTERN ELECTRIC POWER COMPANY Paid-in Capital	SOUTHWESTERN ELECTRIC POWER COMPANY Retained Earnings	SOUTHWESTERN ELECTRIC POWER COMPANY Accumulated Other Comprehensive Income (Loss)	SOUTHWESTERN ELECTRIC POWER COMPANY Noncontrolling Interests
Beginning balance at Dec. 31, 2022	$ 24,123	$ 3,413	$ 8,051	$ 12,346		$ 84	$ 229	$ 3,675	$ 0	$ 1,442	$ 2,236	$ (4)	$ 1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent								50		50
Common Stock Dividends	(1,752)			(1,752)	[1]			(175)			(175)
Common Stock Dividends – Nonaffiliated	(8)						(8)	(5)					(5)
Net Income (Loss)	2,213			2,208			5	224			220
Other Comprehensive Income (Loss)	(139)					(139)		1				1	4
Ending balance at Dec. 31, 2023	25,286	3,428	9,074	12,800		(55)	39	3,770	0	1,492	2,281	(3)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent								59		59
Return of Capital to Parent								(1)		(1)
Common Stock Dividends	(1,898)			(1,898)	[1]			(250)			(250)
Common Stock Dividends – Nonaffiliated	(6)						(6)	(5)					(5)
Net Income (Loss)	2,976			2,967			9	326			321		5
Other Comprehensive Income (Loss)	52					52		6				6
Ending balance at Dec. 31, 2024	26,986	3,472	9,606	13,869		(3)	42	3,905	0	1,550	2,352	3	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent								601		601
Common Stock Dividends	(2,008)			(2,008)	[1]
Common Stock Dividends – Nonaffiliated	(108)						(108)	(3)					(3)
Net Income (Loss)	3,696			3,580			116	391			388		3
Other Comprehensive Income (Loss)	39					39		5				5
Ending balance at Dec. 31, 2025	$ 32,218	$ 3,523	$ 12,138	$ 15,441		$ 36	$ 1,080	$ 4,899	$ 0	$ 2,151	$ 2,740	$ 8	$ 0

[1] Cash dividends declared per AEP common share were $3.74, $3.57 and $3.37 for the years ended December 31, 2025, 2024 and 2023, respectively.