CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings		Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2023		527,400,000
Beginning balance at Dec. 31, 2023	$ 25,285.9	$ 3,427.9	$ 9,073.9	$ 12,800.4		$ (55.5)	$ 39.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Common Stock (in shares)		800,000
Issuance of Common Stock	40.6	$ 5.4	35.2
Common Stock Dividends	(466.9)			(465.5)	[1]		(1.4)
Other Changes in Equity	(14.8)		(14.8)
Net Income (Loss)	1,005.7			1,003.1			2.6
Other Comprehensive Income (Loss)	(6.8)					(6.8)
Ending balance (in shares) at Mar. 31, 2024		528,200,000
Ending balance at Mar. 31, 2024	$ 25,843.7	$ 3,433.3	9,094.3	13,338.0		(62.3)	40.4
Beginning balance (in shares) at Dec. 31, 2024	534,094,530	534,100,000
Beginning balance at Dec. 31, 2024	$ 26,986.1	$ 3,471.6	9,606.1	13,869.2		(3.1)	42.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Common Stock (in shares)		1,100,000
Issuance of Common Stock	75.4	$ 7.1	68.3
Common Stock Dividends	(501.0)			(500.0)	[2]		(1.0)
Other Changes in Equity	(22.1)		(22.1)
Net Income (Loss)	802.2			800.2			2.0
Other Comprehensive Income (Loss)	$ 23.4					23.4
Ending balance (in shares) at Mar. 31, 2025	535,185,918	535,200,000
Ending balance at Mar. 31, 2025	$ 27,364.0	$ 3,478.7	$ 9,652.3	$ 14,169.4		$ 20.3	$ 43.3

[1] Cash dividends declared per AEP common share were $0.88.

[2] Cash dividends declared per AEP common share were $0.93.