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As of December 31, 2024, there was $ 59 million of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the 2015 LTIP and the 2024 LTIP. Unrecognized compensation cost related to unvested share-based arrangements will change as the fair value of performance share...
text
59
monetaryItemType
text: <entity> 59 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, there was $ 59 million of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the 2015 LTIP and the 2024 LTIP. Unrecognized compensation cost related to ...
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not power is available from AEGCo, to pay as a demand charge for the right to receive su...
text
209
monetaryItemType
text: <entity> 209 </entity> <entity type> monetaryItemType </entity type> <context> A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not power is available from AEGCo, to pay as a demand charge for the right to receive su...
text
181
monetaryItemType
text: <entity> 181 </entity> <entity type> monetaryItemType </entity type> <context> A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not power is available from AEGCo, to pay as a demand charge for the right to receive su...
text
242
monetaryItemType
text: <entity> 242 </entity> <entity type> monetaryItemType </entity type> <context> A UPA between AEGCo and I&M (the I&M Power Agreement) provides for the sale by AEGCo to I&M of all the energy and capacity available to AEGCo at the Rockport Plant unless it is sold to another utility. I&M is obligated, whether or not...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and have been awarded tranches of OPCo’s SSO load. OPCo’s auction purchases were $ 98 m...
text
98
monetaryItemType
text: <entity> 98 </entity> <entity type> monetaryItemType </entity type> <context> In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and ...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and have been awarded tranches of OPCo’s SSO load. OPCo’s auction purchases were $ 98 m...
text
87
monetaryItemType
text: <entity> 87 </entity> <entity type> monetaryItemType </entity type> <context> In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and ...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and have been awarded tranches of OPCo’s SSO load. OPCo’s auction purchases were $ 98 m...
text
10
monetaryItemType
text: <entity> 10 </entity> <entity type> monetaryItemType </entity type> <context> In connection with OPCo’s June 2012 - May 2015 ESP, the PUCO ordered OPCo to conduct energy and capacity auctions for its entire SSO load for delivery beginning in June 2015. AEP Energy and AEPEP participate in the auction process and ...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
Certain AEP subsidiaries had affiliated sales and purchases of electric property individually amounting to $ 100 thousand or more, sales and purchases of meters and transformers, and sales and purchases of transmission property.  There were no gains or losses recorded on the transactions and the net book value of all s...
text
100
monetaryItemType
text: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> Certain AEP subsidiaries had affiliated sales and purchases of electric property individually amounting to $ 100 thousand or more, sales and purchases of meters and transformers, and sales and purchases of transmission property.  There...
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, discussion and concerted action related to tax policy associated with clean, affordable...
text
0.1
monetaryItemType
text: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, di...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, discussion and concerted action related to tax policy associated with clean, affordable...
text
0.2
monetaryItemType
text: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, di...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, discussion and concerted action related to tax policy associated with clean, affordable...
text
no
monetaryItemType
text: <entity> no </entity> <entity type> monetaryItemType </entity type> <context> For the years ended December 31, 2023 and 2022, AEP made contributions of $ 0.1 million and $ 0.2 million, respectively, to Clean Affordable Reliable Coalition (CARE), a 501(c)(6) organization established to encourage communication, dis...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution and transmission infrastructure services from the related party vendor in the ordin...
text
44
monetaryItemType
text: <entity> 44 </entity> <entity type> monetaryItemType </entity type> <context> Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution and transmission infrastructure services from the related party vendor in the ordin...
text
25
monetaryItemType
text: <entity> 25 </entity> <entity type> monetaryItemType </entity type> <context> Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution and transmission infrastructure services from the related party vendor in the ordin...
text
13
monetaryItemType
text: <entity> 13 </entity> <entity type> monetaryItemType </entity type> <context> Beginning in August 2024, an officer of AEP also served as a member of the board of directors of a company that is a vendor of certain AEP subsidiaries. From August 2024 through December 2024, AEP purchased $ 44 million of distribution...
us-gaap:RelatedPartyTransactionAmountsOfTransaction
See Note 7 - Acquisitions, Dispositions and Impairments for additional information related to the disposal of the 50 % interests in Fowler Ridge 2 which was included in the August 2023 sale of the Competitive Contracted Renewables Portfolio and Flat Ridge 2 which was sold in November 2022.
text
50
percentItemType
text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> See Note 7 - Acquisitions, Dispositions and Impairments for additional information related to the disposal of the 50 % interests in Fowler Ridge 2 which was included in the August 2023 sale of the Competitive Contracted Renewables Portfo...
us-gaap:EquityMethodInvestmentOwnershipPercentage
$ 100 million.  Actual costs may vary due to inflation and changes in reclamation scope.  SWEPCo recovers these costs through its fuel clauses. As of December 31, 2024, SWEPCo has recorded an ARO of $ 96 million and has paid or accrued $ 77 million for reclamation costs billed by Sabine. To date, SWEPCo has collected...
text
100
monetaryItemType
text: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> $ 100 million.  Actual costs may vary due to inflation and changes in reclamation scope.  SWEPCo recovers these costs through its fuel clauses. As of December 31, 2024, SWEPCo has recorded an ARO of $ 96 million and has paid or accrue...
us-gaap:MineReclamationAndClosingLiabilityNoncurrent
$ 100 million.  Actual costs may vary due to inflation and changes in reclamation scope.  SWEPCo recovers these costs through its fuel clauses. As of December 31, 2024, SWEPCo has recorded an ARO of $ 96 million and has paid or accrued $ 77 million for reclamation costs billed by Sabine. To date, SWEPCo has collected...
text
77
monetaryItemType
text: <entity> 77 </entity> <entity type> monetaryItemType </entity type> <context> $ 100 million.  Actual costs may vary due to inflation and changes in reclamation scope.  SWEPCo recovers these costs through its fuel clauses. As of December 31, 2024, SWEPCo has recorded an ARO of $ 96 million and has paid or accrued...
us-gaap:AccountsPayableCurrent
Transition Funding was formed for the sole purpose of issuing and servicing securitization bonds related to restructuring legislation in Texas. Management concluded that AEP Texas is the primary beneficiary of Transition Funding because AEP Texas has the power to direct the most significant activities of the VIE and A...
text
72
monetaryItemType
text: <entity> 72 </entity> <entity type> monetaryItemType </entity type> <context> Transition Funding was formed for the sole purpose of issuing and servicing securitization bonds related to restructuring legislation in Texas. Management concluded that AEP Texas is the primary beneficiary of Transition Funding becaus...
us-gaap:SecuredDebt
Transition Funding was formed for the sole purpose of issuing and servicing securitization bonds related to restructuring legislation in Texas. Management concluded that AEP Texas is the primary beneficiary of Transition Funding because AEP Texas has the power to direct the most significant activities of the VIE and A...
text
64
monetaryItemType
text: <entity> 64 </entity> <entity type> monetaryItemType </entity type> <context> Transition Funding was formed for the sole purpose of issuing and servicing securitization bonds related to restructuring legislation in Texas. Management concluded that AEP Texas is the primary beneficiary of Transition Funding becaus...
us-gaap:SecuritizedRegulatoryTransitionAssetsNoncurrent
Restoration Funding was formed for the sole purpose of issuing and servicing securitization bonds related to storm restoration of AEP Texas’ distribution system primarily due to damage caused by Hurricane Harvey. Management concluded that AEP Texas is the primary beneficiary of Restoration Funding because AEP Texas ha...
text
24
monetaryItemType
text: <entity> 24 </entity> <entity type> monetaryItemType </entity type> <context> Restoration Funding was formed for the sole purpose of issuing and servicing securitization bonds related to storm restoration of AEP Texas’ distribution system primarily due to damage caused by Hurricane Harvey. Management concluded t...
us-gaap:SecuredDebt
$ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, respectively, which are presented separately on the face of the balance sheets.
text
102
monetaryItemType
text: <entity> 102 </entity> <entity type> monetaryItemType </entity type> <context> $ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, resp...
us-gaap:SecuredDebt
$ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, respectively, which are presented separately on the face of the balance sheets.
text
126
monetaryItemType
text: <entity> 126 </entity> <entity type> monetaryItemType </entity type> <context> $ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, resp...
us-gaap:SecuredDebt
$ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, respectively, which are presented separately on the face of the balance sheets.
text
117
monetaryItemType
text: <entity> 117 </entity> <entity type> monetaryItemType </entity type> <context> $ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, resp...
us-gaap:SecuritizedRegulatoryTransitionAssetsNoncurrent
$ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, respectively, which are presented separately on the face of the balance sheets.
text
139
monetaryItemType
text: <entity> 139 </entity> <entity type> monetaryItemType </entity type> <context> $ 102 million and $ 126 million were included in Long-term Debt - Nonaffiliated, respectively, on the balance sheets. Restoration Funding’s securitized assets were $ 117 million and $ 139 million as of December 31, 2024 and 2023, resp...
us-gaap:SecuritizedRegulatoryTransitionAssetsNoncurrent
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
28
monetaryItemType
text: <entity> 28 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary o...
us-gaap:SecuredDebt
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
27
monetaryItemType
text: <entity> 27 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary o...
us-gaap:SecuredDebt
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
91
monetaryItemType
text: <entity> 91 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary o...
us-gaap:SecuredDebt
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
120
monetaryItemType
text: <entity> 120 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary ...
us-gaap:SecuredDebt
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
106
monetaryItemType
text: <entity> 106 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary ...
us-gaap:SecuritizedRegulatoryTransitionAssetsNoncurrent
Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary of Appalachian Consumer Rate Relief Funding because APCo has the power to direct the ...
text
133
monetaryItemType
text: <entity> 133 </entity> <entity type> monetaryItemType </entity type> <context> Appalachian Consumer Rate Relief Funding was formed for the sole purpose of issuing and servicing securitization bonds related to APCo’s under-recovered ENEC deferral balance.  Management concluded that APCo is the primary beneficiary ...
us-gaap:SecuritizedRegulatoryTransitionAssetsNoncurrent
In August 2024, Storm Recovery Funding was formed for the sole purpose of issuing and servicing securitization bonds related to storm recovery primarily related to SWEPCo’s distribution system. Management concluded that SWEPCo is the primary beneficiary of Storm Recovery Funding because SWEPCo has the power to direct ...
text
23
monetaryItemType
text: <entity> 23 </entity> <entity type> monetaryItemType </entity type> <context> In August 2024, Storm Recovery Funding was formed for the sole purpose of issuing and servicing securitization bonds related to storm recovery primarily related to SWEPCo’s distribution system. Management concluded that SWEPCo is the p...
us-gaap:SecuredDebt
AEGCo, a wholly-owned subsidiary of Parent, is consolidated by AEP.  AEGCo owns a 50 % ownership interest in Rockport Plant, Units 1 and 2. AEGCo sells its portion of the output from the Rockport Plant to I&M.  AEP has agreed to provide AEGCo with the funds necessary to satisfy all the debt obligations of AEGCo.  I&M ...
text
50
percentItemType
text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> AEGCo, a wholly-owned subsidiary of Parent, is consolidated by AEP.  AEGCo owns a 50 % ownership interest in Rockport Plant, Units 1 and 2. AEGCo sells its portion of the output from the Rockport Plant to I&M.  AEP has agreed to provide...
us-gaap:JointlyOwnedUtilityPlantProportionateOwnershipShare
$ 14 million and $ 15 million, respectively. Management estimates the maximum exposure of loss to be equal to the amount of such liabilities.
text
14
monetaryItemType
text: <entity> 14 </entity> <entity type> monetaryItemType </entity type> <context> $ 14 million and $ 15 million, respectively. Management estimates the maximum exposure of loss to be equal to the amount of such liabilities. </context>
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
$ 14 million and $ 15 million, respectively. Management estimates the maximum exposure of loss to be equal to the amount of such liabilities.
text
15
monetaryItemType
text: <entity> 15 </entity> <entity type> monetaryItemType </entity type> <context> $ 14 million and $ 15 million, respectively. Management estimates the maximum exposure of loss to be equal to the amount of such liabilities. </context>
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Devco is a VIE because its operations and activities, including the initial 100 MWs purchase of fuel cells from Bloom Energy, are entirely financed by Parent through borrowings from the Nonutility Money Pool. Parent controls the significant activities of Devco and is exposed to its potential losses to the extent sales...
text
457
monetaryItemType
text: <entity> 457 </entity> <entity type> monetaryItemType </entity type> <context> Devco is a VIE because its operations and activities, including the initial 100 MWs purchase of fuel cells from Bloom Energy, are entirely financed by Parent through borrowings from the Nonutility Money Pool. Parent controls the signi...
us-gaap:ConstructionInProgressGross
DHLC is a mining operator which previously sold 50 % of the lignite produced to SWEPCo and 50 % to CLECO.  The operations of DHLC are governed by the lignite mining agreement among SWEPCo, CLECO and DHLC. SWEPCo and CLECO share the executive board seats and voting rights equally. In accordance with the lignite mining...
text
1
monetaryItemType
text: <entity> 1 </entity> <entity type> monetaryItemType </entity type> <context> DHLC is a mining operator which previously sold 50 % of the lignite produced to SWEPCo and 50 % to CLECO.  The operations of DHLC are governed by the lignite mining agreement among SWEPCo, CLECO and DHLC. SWEPCo and CLECO share the exec...
us-gaap:Dividends
DHLC is a mining operator which previously sold 50 % of the lignite produced to SWEPCo and 50 % to CLECO.  The operations of DHLC are governed by the lignite mining agreement among SWEPCo, CLECO and DHLC. SWEPCo and CLECO share the executive board seats and voting rights equally. In accordance with the lignite mining...
text
25
monetaryItemType
text: <entity> 25 </entity> <entity type> monetaryItemType </entity type> <context> DHLC is a mining operator which previously sold 50 % of the lignite produced to SWEPCo and 50 % to CLECO.  The operations of DHLC are governed by the lignite mining agreement among SWEPCo, CLECO and DHLC. SWEPCo and CLECO share the exe...
us-gaap:Dividends
ETT designs, acquires, constructs, owns and operates certain transmission facilities in ERCOT. BHE, a nonaffiliated entity, holds a 50 % membership interest in ETT and AEP Transmission Holdco holds a 50 % membership interest in ETT. As a result, AEP, through its wholly-owned subsidiary, holds a 50 % membership intere...
text
50
percentItemType
text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> ETT designs, acquires, constructs, owns and operates certain transmission facilities in ERCOT. BHE, a nonaffiliated entity, holds a 50 % membership interest in ETT and AEP Transmission Holdco holds a 50 % membership interest in ETT. As...
us-gaap:EquityMethodInvestmentOwnershipPercentage
and $ 811 million, respectively. AEP’s equity earnings associated with ET
text
811
monetaryItemType
text: <entity> 811 </entity> <entity type> monetaryItemType </entity type> <context> and $ 811 million, respectively. AEP’s equity earnings associated with ET </context>
us-gaap:EquityMethodInvestments
$ 86 million, $ 74 million and $ 74 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
86
monetaryItemType
text: <entity> 86 </entity> <entity type> monetaryItemType </entity type> <context> $ 86 million, $ 74 million and $ 74 million for the years ended December 31, 2024, 2023 and 2022, respectively. </context>
us-gaap:IncomeLossFromEquityMethodInvestments
$ 86 million, $ 74 million and $ 74 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
74
monetaryItemType
text: <entity> 74 </entity> <entity type> monetaryItemType </entity type> <context> $ 86 million, $ 74 million and $ 74 million for the years ended December 31, 2024, 2023 and 2022, respectively. </context>
us-gaap:IncomeLossFromEquityMethodInvestments
(a) I&M's annual composite depreciation rate for Generation property is 1.8 % and the depreciable life is 39 years.
text
1.8
percentItemType
text: <entity> 1.8 </entity> <entity type> percentItemType </entity type> <context> (a) I&M's annual composite depreciation rate for Generation property is 1.8 % and the depreciable life is 39 years. </context>
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
In April 2024, the Federal EPA finalized revisions to the CCR Rule to expand the scope of the rule to include inactive impoundments at inactive facilities as well as to establish requirements for currently exempt solid waste management units that involve the direct placement of CCR on the land. In the second quarter o...
text
602
monetaryItemType
text: <entity> 602 </entity> <entity type> monetaryItemType </entity type> <context> In April 2024, the Federal EPA finalized revisions to the CCR Rule to expand the scope of the rule to include inactive impoundments at inactive facilities as well as to establish requirements for currently exempt solid waste management...
us-gaap:AssetRetirementObligationLiabilitiesIncurred
In April 2024, the Federal EPA finalized revisions to the CCR Rule to expand the scope of the rule to include inactive impoundments at inactive facilities as well as to establish requirements for currently exempt solid waste management units that involve the direct placement of CCR on the land. In the second quarter o...
text
72
monetaryItemType
text: <entity> 72 </entity> <entity type> monetaryItemType </entity type> <context> In April 2024, the Federal EPA finalized revisions to the CCR Rule to expand the scope of the rule to include inactive impoundments at inactive facilities as well as to establish requirements for currently exempt solid waste management ...
us-gaap:AssetRetirementObligationRevisionOfEstimate
In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion and $ 2.11 billion as of December 31, 2024 and 2023. As of December 31, 2024 and 2023, ...
text
1.97
monetaryItemType
text: <entity> 1.97 </entity> <entity type> monetaryItemType </entity type> <context> In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion an...
us-gaap:DecommissioningLiabilityNoncurrent
In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion and $ 2.11 billion as of December 31, 2024 and 2023. As of December 31, 2024 and 2023, ...
text
2.11
monetaryItemType
text: <entity> 2.11 </entity> <entity type> monetaryItemType </entity type> <context> In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion an...
us-gaap:DecommissioningLiabilityNoncurrent
In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion and $ 2.11 billion as of December 31, 2024 and 2023. As of December 31, 2024 and 2023, ...
text
4.03
monetaryItemType
text: <entity> 4.03 </entity> <entity type> monetaryItemType </entity type> <context> In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion an...
us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue
In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion and $ 2.11 billion as of December 31, 2024 and 2023. As of December 31, 2024 and 2023, ...
text
3.51
monetaryItemType
text: <entity> 3.51 </entity> <entity type> monetaryItemType </entity type> <context> In December 2024, I&M recorded a $ 176 million revision as a result of the completion of the latest Cook Plant nuclear decommissioning study.  I&M's ARO related to nuclear decommissioning costs for the Cook Plant was $ 1.97 billion an...
us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue
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.
text
1.6
monetaryItemType
text: <entity> 1.6 </entity> <entity type> monetaryItemType </entity type> <context> 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. </co...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
177
monetaryItemType
text: <entity> 177 </entity> <entity type> monetaryItemType </entity type> <context> 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. </co...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $ 96 million. The remaining affiliated amounts were immaterial.
text
96
monetaryItemType
text: <entity> 96 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $ 96 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 137 million. The remaining affiliated amounts were immaterial.
text
137
monetaryItemType
text: <entity> 137 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 137 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
1.5
monetaryItemType
text: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> 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. </co...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
205
monetaryItemType
text: <entity> 205 </entity> <entity type> monetaryItemType </entity type> <context> 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. </co...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $ 82 million. The remaining affiliated amounts were immaterial.
text
82
monetaryItemType
text: <entity> 82 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Generation & Marketing was $ 82 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 100 million. The remaining affiliated amounts were immaterial.
text
100
monetaryItemType
text: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 100 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEP Transmission Holdco was $ 1.3 billion. The remaining affiliated amounts were immaterial.
text
1.3
monetaryItemType
text: <entity> 1.3 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEP Transmission Holdco was $ 1.3 billion. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 59 million. The remaining affiliated amounts were immaterial.
text
59
monetaryItemType
text: <entity> 59 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for Corporate and Other was $ 59 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
159
monetaryItemType
text: <entity> 159 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
1.6
monetaryItemType
text: <entity> 1.6 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
87
monetaryItemType
text: <entity> 87 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
65
monetaryItemType
text: <entity> 65 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
75
monetaryItemType
text: <entity> 75 </entity> <entity type> monetaryItemType </entity type> <context> 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 immateria...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
159
monetaryItemType
text: <entity> 159 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
1.4
monetaryItemType
text: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
93
monetaryItemType
text: <entity> 93 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
73
monetaryItemType
text: <entity> 73 </entity> <entity type> monetaryItemType </entity type> <context> 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. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
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.
text
68
monetaryItemType
text: <entity> 68 </entity> <entity type> monetaryItemType </entity type> <context> 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 immateria...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for APCo was $ 170 million primarily relating to the PPA with KGPCo. The remaining affiliated amounts were immaterial.
text
170
monetaryItemType
text: <entity> 170 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for APCo was $ 170 million primarily relating to the PPA with KGPCo. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial.
text
1.3
monetaryItemType
text: <entity> 1.3 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial.
text
78
monetaryItemType
text: <entity> 78 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial.
text
51
monetaryItemType
text: <entity> 51 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for AEPTCo was $ 1.3 billion, APCo was $ 78 million and SWEPCo was $ 51 million. The remaining affiliated amounts were immaterial. </context>
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for I&M was $ 62 million primarily relating to barging, urea transloading and other transportation services. The remaining affiliated amounts were immaterial.
text
62
monetaryItemType
text: <entity> 62 </entity> <entity type> monetaryItemType </entity type> <context> Amounts include affiliated and nonaffiliated revenues. The affiliated revenue for I&M was $ 62 million primarily relating to barging, urea transloading and other transportation services. The remaining affiliated amounts were immateria...
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
28
monetaryItemType
text: <entity> 28 </entity> <entity type> monetaryItemType </entity type> <context> Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 ...
us-gaap:InterestExpenseDebt
Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
33
monetaryItemType
text: <entity> 33 </entity> <entity type> monetaryItemType </entity type> <context> Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 ...
us-gaap:InterestExpenseDebt
Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
30
monetaryItemType
text: <entity> 30 </entity> <entity type> monetaryItemType </entity type> <context> Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income.  Parent incurred interest expense for amounts borrowed from subsidiaries of $ 28 million, $ 33 million and $ 30 ...
us-gaap:InterestExpenseDebt
Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
84
monetaryItemType
text: <entity> 84 </entity> <entity type> monetaryItemType </entity type> <context> Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million ...
us-gaap:InvestmentIncomeInterest
Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
164
monetaryItemType
text: <entity> 164 </entity> <entity type> monetaryItemType </entity type> <context> Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million...
us-gaap:InvestmentIncomeInterest
Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million for the years ended December 31, 2024, 2023 and 2022, respectively.
text
71
monetaryItemType
text: <entity> 71 </entity> <entity type> monetaryItemType </entity type> <context> Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income.  Parent earned interest income for amounts advanced to subsidiaries of $ 84 million, $ 164 million and $ 71 million ...
us-gaap:InvestmentIncomeInterest
Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Parent.  Interest income related to Parent’s loans to subsidiaries is included in Int...
text
7
monetaryItemType
text: <entity> 7 </entity> <entity type> monetaryItemType </entity type> <context> Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Pa...
us-gaap:InvestmentIncomeInterest
Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Parent.  Interest income related to Parent’s loans to subsidiaries is included in Int...
text
6
monetaryItemType
text: <entity> 6 </entity> <entity type> monetaryItemType </entity type> <context> Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Pa...
us-gaap:InvestmentIncomeInterest
Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Parent.  Interest income related to Parent’s loans to subsidiaries is included in Int...
text
3
monetaryItemType
text: <entity> 3 </entity> <entity type> monetaryItemType </entity type> <context> Parent issued long-term debt, portions of which were loaned to its subsidiaries.  Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Pa...
us-gaap:InvestmentIncomeInterest
In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committee on Foreign Investment in the United States. In December 2024, Midwest Transmission...
text
19.9
percentItemType
text: <entity> 19.9 </entity> <entity type> percentItemType </entity type> <context> In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committe...
us-gaap:MinorityInterestOwnershipPercentageByParent
In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committee on Foreign Investment in the United States. In December 2024, Midwest Transmission...
text
2.82
monetaryItemType
text: <entity> 2.82 </entity> <entity type> monetaryItemType </entity type> <context> In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committ...
us-gaap:ProceedsFromMinorityShareholders
In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committee on Foreign Investment in the United States. In December 2024, Midwest Transmission...
text
2.82
monetaryItemType
text: <entity> 2.82 </entity> <entity type> monetaryItemType </entity type> <context> In January 2025, AEP announced a partnership between nonaffiliated entities to acquire a 19.9 % noncontrolling interest in OHTCo and IMTCo for $ 2.82 billion. The transaction is subject to FERC approval and clearance from the Committ...
us-gaap:AccountsReceivableNet
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
5.8
monetaryItemType
text: <entity> 5.8 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:LongTermDebt
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
5.4
monetaryItemType
text: <entity> 5.4 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:LongTermDebt
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
8.6
monetaryItemType
text: <entity> 8.6 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:AccountsReceivableNet
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
5.4
monetaryItemType
text: <entity> 5.4 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:AccountsReceivableNet
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
45
monetaryItemType
text: <entity> 45 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these no...
us-gaap:InterestPayableCurrent
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
40
monetaryItemType
text: <entity> 40 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these no...
us-gaap:InterestPayableCurrent
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
62
monetaryItemType
text: <entity> 62 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these no...
us-gaap:AccountsAndOtherReceivablesNetCurrent
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
44
monetaryItemType
text: <entity> 44 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these no...
us-gaap:AccountsAndOtherReceivablesNetCurrent
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
238
monetaryItemType
text: <entity> 238 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:InvestmentIncomeInterest
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
215
monetaryItemType
text: <entity> 215 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:InvestmentIncomeInterest
AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using t...
text
177
monetaryItemType
text: <entity> 177 </entity> <entity type> monetaryItemType </entity type> <context> AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $ 5.8 billion and $ 5.4 billion as of December 31, 2024 and 2023, respectively. AEPTCo Parent uses the proceeds from these n...
us-gaap:InvestmentIncomeInterest
Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements.
text
238
monetaryItemType
text: <entity> 238 </entity> <entity type> monetaryItemType </entity type> <context> Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements. </context>
us-gaap:InterestExpenseDebt
Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements.
text
215
monetaryItemType
text: <entity> 215 </entity> <entity type> monetaryItemType </entity type> <context> Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements. </context>
us-gaap:InterestExpenseDebt
Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements.
text
177
monetaryItemType
text: <entity> 177 </entity> <entity type> monetaryItemType </entity type> <context> Parent has recorded Interest Expense of $ 238 million, $ 215 million and $ 177 million for the years ended December 31, 2024, 2023 and 2022, respectively, related to the nonaffiliated debt arrangements. </context>
us-gaap:InterestExpenseDebt
Interest income related to AEPTCo Parent’s short-term lending is included in Interest Income – Affiliated on AEPTCo Parent’s statements of income.  AEPTCo Parent earned interest income for amounts advanced to AEP affiliates of $ 3 million, $ 3 million and $ 915 thousand for the years ended December 31, 2024, 2023 and 2...
text
3
monetaryItemType
text: <entity> 3 </entity> <entity type> monetaryItemType </entity type> <context> Interest income related to AEPTCo Parent’s short-term lending is included in Interest Income – Affiliated on AEPTCo Parent’s statements of income.  AEPTCo Parent earned interest income for amounts advanced to AEP affiliates of $ 3 millio...
us-gaap:InvestmentIncomeInterest