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Disclosure - Fair Value Long-term Debt, Other Temporary Investments, Nuclear Trusts (Details) Sheet http://www.aep.com/role/FairValueLongtermDebtOtherTemporaryInvestmentsNuclearTrustsDetails Fair Value Long-term Debt, Other Temporary Investments, Nuclear Trusts (Details) Details 49 false false R50.htm 2434412 - Disclosure - Fair Value Assets and Liabilities (Details) Sheet http://www.aep.com/role/FairValueAssetsandLiabilitiesDetails Fair Value Assets and Liabilities (Details) Details 50 false false R51.htm 2438413 - Disclosure - Income Taxes (Details) Sheet http://www.aep.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.aep.com/role/IncomeTaxesTables 51 false false R52.htm 2441414 - Disclosure - Financing Activities (Details) Sheet http://www.aep.com/role/FinancingActivitiesDetails Financing Activities (Details) Details http://www.aep.com/role/FinancingActivitiesTables 52 false false R53.htm 2445415 - Disclosure - Property, Plant and Equipment (Details) Sheet http://www.aep.com/role/PropertyPlantandEquipmentDetails Property, Plant and Equipment (Details) Details http://www.aep.com/role/PropertyPlantandEquipmentTables 53 false false R54.htm 2449416 - Disclosure - Revenue from Contracts with Customers (Details) Sheet http://www.aep.com/role/RevenuefromContractswithCustomersDetails Revenue from Contracts with Customers (Details) Details http://www.aep.com/role/RevenuefromContractswithCustomersTables 54 false false All Reports Book All Reports [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 3 fact(s) appearing in ix:hidden were eligible for transformation: aep:CorporateUnitOwnershipShareOfAnEquityUnit, us-gaap:DeferredTaxAssetsGross - aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:ContributionOfProperty with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:CedarCreekProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:ContributionOfProperty fact are Context: ib9c7ad172cb2454b9320449582d81ff7_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:ContributionOfProperty with a value of -9300000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:CedarCreekProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:ContributionOfProperty fact are Context: i17e0358c81344bd492cf872579885e14_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:NoncashOrPartNoncashAcquisitionInvestmentsAcquired1 with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:NoncashOrPartNoncashAcquisitionInvestmentsAcquired1 fact are Context: i4127e141bd9d4c4b827cde78221ee494_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:NoncashOrPartNoncashAcquisitionInvestmentsAcquired1 with a value of 35000000.0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:NoncashOrPartNoncashAcquisitionInvestmentsAcquired1 fact are Context: ib4c24349e44d42fbaef8b00215a432bf_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:AssetImpairmentCharges with a value of 263300000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:KentuckyPowerCoMember. This extension member should not be used with this axis. The properties of this us-gaap:AssetImpairmentCharges fact are Context: i1c4f28c6997e47e380009c54dcd9f30d_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:AssetImpairmentCharges with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:KentuckyPowerCoMember. This extension member should not be used with this axis. The properties of this us-gaap:AssetImpairmentCharges fact are Context: ib63254db59e14e6ea40f03bc69ddedc9_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment with a value of 188000000.0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:FlatRidgeIIMember. This extension member should not be used with this axis. The properties of this us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment fact are Context: i9708b2c0b2d44e398dd5ea21b9c3be04_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:FlatRidgeIIMember. This extension member should not be used with this axis. The properties of this us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment fact are Context: i87ed14cc1f8c410fb770e286a5364f3f_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:GainLossOnDispositionOfAssets1 with a value of -116300000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:MineralRightsMember. This extension member should not be used with this axis. The properties of this us-gaap:GainLossOnDispositionOfAssets1 fact are Context: idfbf72f59c3c4c6aab8839950122978d_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:GainLossOnDispositionOfAssets1 with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:MineralRightsMember. This extension member should not be used with this axis. The properties of this us-gaap:GainLossOnDispositionOfAssets1 fact are Context: ic4dcaf60bed74af4a1bb9bc7f803db1a_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 114000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i74ca62c91b224b53af8cfe1d7a0c225a_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 103000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i158a8476d19b4279a9d148fee417c469_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 11000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i63904c2e9d584a019bea8d88ae20ad7f_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 0 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i4127e141bd9d4c4b827cde78221ee494_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 114400000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:DryLakeSolarProjectMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: ib4c24349e44d42fbaef8b00215a432bf_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 1207300000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:NorthCentralWindEnergyFacilitiesMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i05e8b191198142438df81733169c2322_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 652800000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:NorthCentralWindEnergyFacilitiesMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: ifcd29e4ac8c74f8e93849589aa8afee5_D20210101-20210930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 270000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:NorthCentralWindEnergyFacilitiesMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: id632d8874a5843048c9fbc0816ef0e21_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 383000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:NorthCentralWindEnergyFacilitiesMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i55b8285fafb4418689fdc85f19026362_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment with a value of 1200000000 is dimensionally qualified with the srt:ConsolidationItemsAxis and the unallowable member aep:NorthCentralWindEnergyFacilitiesMember. This extension member should not be used with this axis. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are Context: i984001bfe4b5473cb496612e5722924e_D20220101-20220930, Unit: usd, Rule Element Id: 70. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 10293100000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 840000000 + 1293200000. These values should be equal. The properties of this Assets fact are Context: ib7a50ec52dbe4d60bdd877310c9f7b02_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 87668700000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 7809200000 + 13858200000. These values should be equal. The properties of this Assets fact are Context: i1f6fb7692ba8497493f13144765af18b_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 9325700000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 668500000 + 1257100000. These values should be equal. The properties of this Assets fact are Context: i75a66c8a4e7748a08d748ca6934ec15d_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 6937100000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 568700000 + 834200000. These values should be equal. The properties of this Assets fact are Context: i649b6de6bcf5440da424811e25fb22f1_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 13319200000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 493000000 + 83600000. These values should be equal. The properties of this Assets fact are Context: i682e2ca8bbcb4e35a307f40535875026_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 15043000000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 1351000000 + 1528400000. These values should be equal. The properties of this Assets fact are Context: i68d5e838ee534e7ca7ece5f35da3ffc4_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 6399000000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 386800000 + 1209400000. These values should be equal. The properties of this Assets fact are Context: i93e509e2698f428d9a6c7869fdcbf7e4_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 12690000000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 589000000 + 789300000. These values should be equal. The properties of this Assets fact are Context: i05e596dc6c634ba9a3cdabb5035651a2_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 14088900000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 925300000 + 1359300000. These values should be equal. The properties of this Assets fact are Context: i3b702647d3694b49971c9d04b265826a_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 11836700000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 347200000 + 854100000. These values should be equal. The properties of this Assets fact are Context: i67e7abfbaef44fea9864cfbc05b48459_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 12524400000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 331300000 + 257400000. These values should be equal. The properties of this Assets fact are Context: i29d814898a6140489aed226566a47d1d_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 9425100000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 349500000 + 679600000. These values should be equal. The properties of this Assets fact are Context: ib60cf645a8554e1caa61620736ffdd01_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 11742800000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 470000000 + 3883400000. These values should be equal. The properties of this Assets fact are Context: ic5c3093c36ca46ebb85ccfd1fd929ac9_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 91249400000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 9320000000 + 12116300000. These values should be equal. The properties of this Assets fact are Context: i0eb0a0d80e124ae0b3c9b417775d524f_I20220930, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 9265800000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 327500000 + 975300000. These values should be equal. The properties of this Assets fact are Context: ia8c3a5e55c114b6fa4b1978614a5dfda_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0004-Element-Values-Are-Equal] Assets with a value of 12408200000 is not equal to the total of AssetsCurrent, AssetsNoncurrent with a value of 439400000 + 4657900000. These values should be equal. The properties of this Assets fact are Context: icf778efd5a2c4d23924c42924be5cf5e_I20211231, Unit: usd, Rule Element Id: 9280. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AmortizationOfDeferredPropertyTaxes has a value of -12200000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AmortizationOfDeferredPropertyTaxes fact are: Context: i0b423058fb8e4930a4531946351c3ef2_D20220101-20220930, Unit: usd, Rule Element Id: 3489. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AmortizationOfDeferredPropertyTaxes has a value of -10900000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AmortizationOfDeferredPropertyTaxes fact are: Context: i0c146d0b7b684e10bf1d5b2d1e2e5f9b_D20210101-20210930, Unit: usd, Rule Element Id: 3489. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment has a value of -549300000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are: Context: i0b423058fb8e4930a4531946351c3ef2_D20220101-20220930, Unit: usd, Rule Element Id: 1964. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment has a value of -297000000.0 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are: Context: i0c146d0b7b684e10bf1d5b2d1e2e5f9b_D20210101-20210930, Unit: usd, Rule Element Id: 1964. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AmortizationOfDeferredPropertyTaxes has a value of -22000000.0 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AmortizationOfDeferredPropertyTaxes fact are: Context: ice4a4bb4045c44f8b3ab4122471a4620_D20220101-20220930, Unit: usd, Rule Element Id: 3489. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AmortizationOfDeferredPropertyTaxes has a value of -20000000.0 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AmortizationOfDeferredPropertyTaxes fact are: Context: i8ffcfd745d584f9c8f8aa157011fd02b_D20210101-20210930, Unit: usd, Rule Element Id: 3489. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment has a value of -658000000.0 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are: Context: ice4a4bb4045c44f8b3ab4122471a4620_D20220101-20220930, Unit: usd, Rule Element Id: 1964. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquirePropertyPlantAndEquipment has a value of -355800000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquirePropertyPlantAndEquipment fact are: Context: i8ffcfd745d584f9c8f8aa157011fd02b_D20210101-20210930, Unit: usd, Rule Element Id: 1964. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:ContributionOfProperty has a value of -9300000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:ContributionOfProperty fact are: Context: i17e0358c81344bd492cf872579885e14_D20210101-20210930, Unit: usd, Rule Element Id: 3547. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -26200000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: i33ce409789034997a691d716655f5c41_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -26200000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: i8921fecf306f40f8a289df058af182fd_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -7700000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: i4de85f8255844727ba6e400f63627d38_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -7700000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: ieab4306f65a342d9be1105bdf477d0d0_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -33900000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: i30711ac703f542e9952ef14e3ee59fb5_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains has a value of -33900000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AvailableForSaleSecuritiesGrossUnrealizedGains fact are: Context: ic23a28a97c6e4519aa00d7260fb308dc_D20220101-20220930, Unit: usd, Rule Element Id: 7147. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -1951700000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: i249d9f6b668c4b4d8a4619b5e81bbcc0_I20220930, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -667100000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: ie153225ca6e44c798671ef2a31f18462_I20211231, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -600000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: iaae41b7cccfc4a8694e6ff8686b9265d_I20211231, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -800000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: i19a92884bd6245b9ac36ccdd4db1b67a_I20220930, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -5800000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: idc43c586ccae4971b2391c5c5593c918_I20211231, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:AssetsFairValueDisclosure has a value of -1100000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:AssetsFairValueDisclosure fact are: Context: i29e23f60f0a344a69e400aab90724773_I20211231, Unit: usd, Rule Element Id: 282. aep-20220930.htm 4 [dqc-0048-Required-Calculation-Parent-Element-In-The-Cash-Flow-Statement] The filing should include in the cash flow statement calculation linkbase(s) http://www.aep.com/role/RevenuefromContractswithCustomersDetails - 2449416 - Disclosure - Revenue from Contracts with Customers (Details) one of the following elements as the root(first element) of the calculation tree to represent the aggregate change in cash for the period: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect, CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect, NetCashProvidedByUsedInContinuingOperations (As long as the element NetCashProvidedByUsedInDiscontinuedOperations is also included the reconciliation between opening and closing cash). The calculation linkbase in the filing has the following root elements defined: CashAndCashEquivalentsPeriodIncreaseDecrease. Rule Element Id: 7482. aep-20220930.htm [dqc-0079-Extension-Members] aep:VirginiaMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:VA, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 597, aep-20220930_def.xml 1901 [dqc-0079-Extension-Members] aep:WestVirginiaMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:WV, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 814, aep-20220930_def.xml 1903 [dqc-0079-Extension-Members] aep:ArkansasMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:AR, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 690, aep-20220930_def.xml 1905 [dqc-0079-Extension-Members] aep:TexasMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:TX, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 923, aep-20220930_def.xml 1909 [dqc-0079-Extension-Members] aep:VirginiaMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:VA, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 597, aep-20220930_def.xml 2153 [dqc-0079-Extension-Members] aep:WestVirginiaMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:WV, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 814, aep-20220930_def.xml 2155 [dqc-0079-Extension-Members] aep:OhioMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:OH, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 527, aep-20220930_def.xml 2157 [dqc-0079-Extension-Members] aep:ArkansasMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:AR, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 690, aep-20220930_def.xml 2339 [dqc-0079-Extension-Members] aep:TexasMember is an extension member on the axis us-gaap:StatutoryAccountingPracticesByJurisdictionAxis that was reported in the extension taxonomy, but duplicates a concept, stpr:TX, that exists in the SEC Non-GAAP taxonomies. Rule Element Id: 7657. aep-20220930.xsd 923, aep-20220930_def.xml 2343 aep-20220930.htm aep-20220930.xsd aep-20220930_cal.xml aep-20220930_def.xml aep-20220930_lab.xml aep-20220930_pre.xml ex1020223q.htm ex31aaep20223q.htm ex31aaeptco20223q.htm ex31aaeptexas20223q.htm ex31aapco20223q.htm ex31aim20223q.htm ex31aopco20223q.htm ex31apso20223q.htm ex31aswepco20223q.htm ex31baep20223q.htm ex31baeptco20223q.htm ex31baeptexas20223q.htm ex31bapco20223q.htm ex31bim20223q.htm ex31bopco20223q.htm ex31bpso20223q.htm ex31bswepco20223q.htm ex32aaep20223q.htm ex32aaeptco20223q.htm ex32aaeptexas20223q.htm ex32aapco20223q.htm ex32aim20223q.htm ex32aopco20223q.htm ex32apso20223q.htm ex32aswepco20223q.htm ex32baep20223q.htm ex32baeptco20223q.htm ex32baeptexas20223q.htm ex32bapco20223q.htm ex32bim20223q.htm ex32bopco20223q.htm ex32bpso20223q.htm ex32bswepco20223q.htm ex9520223q.htm http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true