Voluntary Severance Program (Tables)

3 Months Ended

Sep. 30, 2024

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Severance Expense Incurred	$	122.0	$	19.8	$	10.7	$	26.5	$	14.8	$	14.8	$	10.1	$	16.9
Settled/Adjustments	111.0		19.5		10.7		24.7		14.3		14.4		9.8		15.9
Remaining Balance as of September 30, 2024	$	11.0	$	0.3	$	—	$	1.8	$	0.5	$	0.4	$	0.3	$	1.0