CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDER’S EQUITY - PSO - USD ($) $ in Millions	Total	Retained Earnings	[1]	Accumulated Other Comprehensive Income (Loss)	PUBLIC SERVICE COMPANY OF OKLAHOMA	PUBLIC SERVICE COMPANY OF OKLAHOMA Common Stock	PUBLIC SERVICE COMPANY OF OKLAHOMA Paid-in Capital	PUBLIC SERVICE COMPANY OF OKLAHOMA Retained Earnings	PUBLIC SERVICE COMPANY OF OKLAHOMA Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2021					$ 2,291.6	$ 157.2	$ 1,039.0	$ 1,095.4	$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent					3.6		3.6
Common Stock Dividends	$ (1,645.2)	$ (1,628.7)			(45.0)			(45.0)
Other Comprehensive Income (Loss)	(101.1)			$ (101.1)	1.3				1.3
Net Income					167.6			167.6
Ending balance at Dec. 31, 2022					2,419.1	157.2	1,042.6	1,218.0	1.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent					0.6		0.6
Return of Capital to Parent					(3.9)		(3.9)
Common Stock Dividends	(1,760.4)	(1,752.3)			(52.5)			(52.5)
Other Comprehensive Income (Loss)	(139.2)			(139.2)	(1.5)				(1.5)
Net Income					208.8			208.8
Ending balance at Dec. 31, 2023	25,246.7				2,570.6	157.2	1,039.3	1,374.3	(0.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital Contribution from Parent					1.9		1.9
Common Stock Dividends	(1,903.9)	$ (1,898.3)			(140.0)			(140.0)
Other Comprehensive Income (Loss)	52.4			$ 52.4	3.8				3.8
Net Income					249.3			249.3
Ending balance at Dec. 31, 2024	$ 26,943.8				$ 2,685.6	$ 157.2	$ 1,041.2	$ 1,483.6	$ 3.6

[1] Cash dividends declared per AEP common share were $3.57, $3.37 and $3.17 for the years ended December 31, 2024, 2023 and 2022, respectively.