REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenues from Contracts with Customers

The tables below represent AEP’s reportable segment revenues from contracts with customers, net of respective provisions for refund, by type of revenue:

	Year Ended December 31, 2025
	VIU		T&D		AEPTHCo		G&M		Corporate and Other		Reconciling Adjustments		AEP Consolidated
	(in millions)
Retail Revenues:
Residential Revenues	$	4,969	$	2,785	$	—	$	—	$	—	$	—	$	7,754
Commercial Revenues	3,068		1,626		—		—		—		—		4,694
Industrial Revenues (a)	2,718		533		—		—		—		(1)		3,250
Other Retail Revenues	242		60		—		—		—		—		302
Total Retail Revenues	10,997		5,004		—		—		—		(1)		16,000
Wholesale and Competitive Retail Revenues:
Generation Revenues	1,033		—		—		187		—		—		1,220
Transmission Revenues (b)	533		812		2,275		—		—		(2,017)		1,603
Retail, Trading and Marketing Revenues (c)	—		—		—		2,463		—		(66)		2,397
Total Wholesale and Competitive Retail Revenues	1,566		812		2,275		2,650		—		(2,083)		5,220
Other Revenues from Contracts with Customers (d)	236		259		36		10		137		(196)		482
Total Revenues from Contracts with Customers	12,799		6,075		2,311		2,660		137		(2,280)		21,702
Other Revenues:
Alternative Revenue Programs (e)	29		51		66		—		—		(85)		61
Other Revenues (f)	(9)		21		—		102		7		(8)		113
Total Other Revenues	20		72		66		102		7		(93)		174
Total Revenues	$	12,819	$	6,147	$	2,377	$	2,762	$	144	$	(2,373)	$	21,876

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for AEP Transmission Holdco were $1.8 billion. The affiliated revenues for Vertically Integrated Utilities were $211 million. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for Generation & Marketing were $66 million. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for Corporate and Other were $113 million. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues. Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for AEP Transmission Holdco were $57 million. The remaining affiliated amounts were immaterial.

(f)Generation & Marketing includes economic hedge activity.

	Year Ended December 31, 2024
	VIU		T&D		AEPTHCo		G&M		Corporate and Other		Reconciling Adjustments		AEP Consolidated
	(in millions)
Retail Revenues:
Residential Revenues	$	4,562	$	2,756	$	—	$	—	$	—	$	—	$	7,318
Commercial Revenues	2,731		1,567		—		—		—		—		4,298
Industrial Revenues (a)	2,659		515		—		—		—		(1)		3,173
Other Retail Revenues	232		56		—		—		—		—		288
Total Retail Revenues	10,184		4,894		—		—		—		(1)		15,077
Wholesale and Competitive Retail Revenues:
Generation Revenues	748		—		—		103		—		—		851
Transmission Revenues (b)	483		770		1,978		—		—		(1,620)		1,611
Renewable Generation Revenues (a)	—		—		—		23		—		(4)		19
Retail, Trading and Marketing Revenues (c)	—		—		—		2,081		1		(96)		1,986
Total Wholesale and Competitive Retail Revenues	1,231		770		1,978		2,207		1		(1,720)		4,467
Other Revenues from Contracts with Customers (d)	227		198		26		4		185		(214)		426
Total Revenues from Contracts with Customers	11,642		5,862		2,004		2,211		186		(1,935)		19,970
Other Revenues:
Alternative Revenue Programs (e)	(22)		26		(53)		—		—		(30)		(79)
Other Revenues (a) (f)	(23)		20		—		(166)		(3)		2		(170)
Total Other Revenues	(45)		46		(53)		(166)		(3)		(28)		(249)
Total Revenues	$	11,597	$	5,908	$	1,951	$	2,045	$	183	$	(1,963)	$	19,721

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEP Transmission Holdco was $1.6 billion and Vertically Integrated Utilities was $177 million. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $96 million. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $137 million. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues.

(f)Generation & Marketing includes economic hedge activity.

	Year Ended December 31, 2023
	VIU		T&D		AEPTHCo		G&M		Corporate and Other		Reconciling Adjustments		AEP Consolidated
	(in millions)
Retail Revenues:
Residential Revenues	$	4,479	$	2,609	$	—	$	—	$	—	$	—	$	7,088
Commercial Revenues	2,679		1,497		—		—		—		—		4,176
Industrial Revenues (a)	2,748		642		—		—		—		(1)		3,389
Other Retail Revenues	243		51		—		—		—		—		294
Total Retail Revenues	10,149		4,799		—		—		—		(1)		14,947
Wholesale and Competitive Retail Revenues:
Generation Revenues	663		—		—		111		—		—		774
Transmission Revenues (b)	444		702		1,749		—		—		(1,418)		1,477
Renewable Generation Revenues (a)	—		—		—		81		—		(7)		74
Retail, Trading and Marketing Revenues (c)	—		—		—		1,836		1		(82)		1,755
Total Wholesale and Competitive Retail Revenues	1,107		702		1,749		2,028		1		(1,507)		4,080
Other Revenues from Contracts with Customers (d)	204		208		17		9		151		(160)		429
Total Revenues from Contracts with Customers	11,460		5,709		1,766		2,037		152		(1,668)		19,456
Other Revenues:
Alternative Revenue Programs (e)	(35)		(20)		(37)		—		—		(26)		(118)
Other Revenues (a) (f)	25		24		—		(405)		16		(16)		(356)
Total Other Revenues	(10)		4		(37)		(405)		16		(42)		(474)
Total Revenues	$	11,450	$	5,713	$	1,729	$	1,632	$	168	$	(1,710)	$	18,982

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEP Transmission Holdco was $1.5 billion and Vertically Integrated Utilities was $205 million. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $82 million. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $100 million. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues.

(f)Generation & Marketing includes economic hedge activity.

	Year Ended December 31, 2025
	AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Retail Revenues:
Residential Revenues	$	758	$	—	$	1,863	$	895	$	2,026	$	884	$	856
Commercial Revenues	474		—		775		802		1,151		554		636
Industrial Revenues (a)	161		—		799		603		373		369		403
Other Retail Revenues	43		—		111		5		17		107		12
Total Retail Revenues	1,436		—		3,548		2,305		3,567		1,914		1,907
Wholesale Revenues:
Generation Revenues (b)	—		—		372		581		—		25		196
Transmission Revenues (c)	717		2,213		175		51		95		46		195
Total Wholesale Revenues	717		2,213		547		632		95		71		391
Other Revenues from Contracts with Customers (d)	41		36		88		114		218		34		38
Total Revenues from Contracts with Customers	2,194		2,249		4,183		3,051		3,880		2,019		2,336
Other Revenues:
Alternative Revenue Programs (e)	5		70		26		(9)		46		3		18
Other Revenues (a)	—		—		—		(11)		22		—		—
Total Other Revenues	5		70		26		(20)		68		3		18
Total Revenues	$	2,199	$	2,319	$	4,209	$	3,031	$	3,948	$	2,022	$	2,354

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for APCo were $165 million primarily relating to the PPA with KGPCo. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for AEPTCo, APCo and SWEPCo were $1.8 billion, $79 million and $75 million, respectively. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for I&M were $70 million primarily relating to barging, urea transloading and other transportation services. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues. Amounts include affiliated and nonaffiliated revenues. The affiliated revenues for AEPTCo were $56 million. The remaining affiliated amounts were immaterial.

	Year Ended December 31, 2024
	AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Retail Revenues:
Residential Revenues	$	725	$	—	$	1,772	$	847	$	2,031	$	800	$	726
Commercial Revenues	467		—		764		605		1,101		510		558
Industrial Revenues (a)	141		—		813		596		374		349		368
Other Retail Revenues	39		—		113		5		17		100		9
Total Retail Revenues	1,372		—		3,462		2,053		3,523		1,759		1,661
Wholesale Revenues:
Generation Revenues (b)	—		—		305		394		—		9		177
Transmission Revenues (c)	673		1,925		185		41		96		42		172
Total Wholesale Revenues	673		1,925		490		435		96		51		349
Other Revenues from Contracts with Customers (d)	36		26		87		116		162		39		33
Total Revenues from Contracts with Customers	2,081		1,951		4,039		2,604		3,781		1,849		2,043
Other Revenues:
Alternative Revenue Programs (e)	(1)		(60)		(6)		(8)		27		(3)		(7)
Other Revenues (a)	—		—		—		(24)		20		—		—
Total Other Revenues	(1)		(60)		(6)		(32)		47		(3)		(7)
Total Revenues	$	2,080	$	1,891	$	4,033	$	2,572	$	3,828	$	1,846	$	2,036

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for APCo was $159 million primarily relating to the PPA with KGPCo. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $1.6 billion, APCo was $87 million and SWEPCo was $65 million. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for I&M was $75 million primarily relating to barging, urea transloading and other transportation services. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues.

	Year Ended December 31, 2023
	AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Retail Revenues:
Residential Revenues	$	656	$	—	$	1,613	$	842	$	1,954	$	831	$	800
Commercial Revenues	415		—		700		575		1,082		539		609
Industrial Revenues (a)	145		—		778		614		497		423		416
Other Retail Revenues	35		—		106		5		15		113		10
Total Retail Revenues	1,251		—		3,197		2,036		3,548		1,906		1,835
Wholesale Revenues:
Generation Revenues (b)	—		—		288		327		—		12		177
Transmission Revenues (c)	619		1,704		181		39		83		37		151
Total Wholesale Revenues	619		1,704		469		366		83		49		328
Other Revenues from Contracts with Customers (d)	36		16		74		120		172		22		29
Total Revenues from Contracts with Customers	1,906		1,720		3,740		2,522		3,803		1,977		2,192
Other Revenues:
Alternative Revenue Programs (e)	(4)		(49)		(19)		(11)		(15)		—		(9)
Other Revenues (a)	—		—		—		25		23		—		—
Total Other Revenues	(4)		(49)		(19)		14		8		—		(9)
Total Revenues	$	1,902	$	1,671	$	3,721	$	2,536	$	3,811	$	1,977	$	2,183

(a)Amounts include affiliated and nonaffiliated revenues.

(b)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for APCo was $159 million primarily relating to the PPA with KGPCo. The remaining affiliated amounts were immaterial.

(c)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $1.4 billion, APCo was $93 million and SWEPCo was $73 million. The remaining affiliated amounts were immaterial.

(d)Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for I&M was $68 million primarily relating to barging, urea transloading and other transportation services. The remaining affiliated amounts were immaterial.

(e)Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over/under collection of related revenues.

Schedule of Fixed Performance Obligations

The following table represents the Registrants’ remaining fixed performance obligations satisfied over time as of December 31, 2025. Fixed performance obligations primarily include electricity sales for fixed amounts of energy and stand ready services into PJM’s RPM market. The Registrants elected to apply the exemption to not disclose the value of unsatisfied performance obligations for contracts with an original expected term of one year or less. Due to the annual establishment of revenue requirements, transmission revenues are excluded from the table below. The Registrant Subsidiaries amounts shown in the table below include affiliated and nonaffiliated revenues.

Company	2026		2027-2028		2029-2030		After 2030		Total
	(in millions)
AEP	$	85	$	86	$	39	$	16	$	226
APCo	16		32		23		12		83
I&M	4		9		5		2		20

Schedule of Affiliated Accounts Receivable Contracts with Customers

The following table represents the amount of affiliated accounts receivable from contracts with customers included in Accounts Receivable - Affiliated Companies on the Registrant Subsidiaries’ balance sheets:

Years Ended December 31,	AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
2025	$	146	$	113	$	67	$	74	$	22	$	65
2024	132		84		55		64		13		21