Acquisitions, Dispositions and Impairments (Tables)

12 Months Ended

Dec. 31, 2023

Lease Rental Costs

Year Ended December 31, 2023	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Operating Lease Cost	$	149.9	$	34.0	$	1.3	$	18.5	$	19.6	$	17.3	$	13.5	$	17.5
Finance Lease Cost:
Amortization of Right-of-Use Assets	69.1		7.4		—		8.3		7.3		5.0		3.3		19.9
Interest on Lease Liabilities	11.9		1.4		—		1.8		2.5		0.9		0.7		1.4
Total Lease Rental Costs (a)	$	230.9	$	42.8	$	1.3	$	28.6	$	29.4	$	23.2	$	17.5	$	38.8

Year Ended December 31, 2022	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Operating Lease Cost	$	157.5	$	18.4	$	1.1	$	17.9	$	29.5	$	16.9	$	11.8	$	15.3
Finance Lease Cost:
Amortization of Right-of-Use Assets	205.5		6.8		—		7.9		78.7		4.9		3.2		10.8
Interest on Lease Liabilities	13.4		1.3		—		2.0		3.1		0.8		0.6		2.1
Total Lease Rental Costs (a)	$	376.4	$	26.5	$	1.1	$	27.8	$	111.3	$	22.6	$	15.6	$	28.2

Year Ended December 31, 2021	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Operating Lease Cost	$	275.3	$	18.4	$	1.7	$	19.3	$	90.2	$	19.0	$	8.7	$	12.1
Finance Lease Cost:
Amortization of Right-of-Use Assets	74.7		6.7		—		7.7		12.9		4.9		3.2		11.0
Interest on Lease Liabilities	14.4		1.4		—		2.4		3.0		0.8		0.6		2.5
Total Lease Rental Costs (a)	$	364.4	$	26.5	$	1.7	$	29.4	$	106.1	$	24.7	$	12.5	$	25.6

(a)Excludes variable and short-term lease costs, which were immaterial.