XML 172 R130.htm IDEA: XBRL DOCUMENT
v3.25.2

DERIVATIVES AND HEDGING - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Commodity |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | $ 91.5 | $ 98.5
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 37.1 | 33.9
Commodity | AEP Texas |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.0 | 0.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.0 | 0.0
Commodity | APCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.0 | 0.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.0 | 0.0
Commodity | I&M |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.0 | 0.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.0 | 0.0
Commodity | PSO |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.0 | 0.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.0 | 0.0
Commodity | SWEPCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.0 | 0.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.0 | 0.0
Interest Rate |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.2 | 3.3
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.8 | 2.8
Interest Rate | AEP Texas |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 5.9 | 6.3
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.7 | 0.7
Interest Rate | APCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 4.7 | 5.1
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.8 | 0.8
Interest Rate | I&M |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | (4.9) | (5.1)
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | (0.4) | (0.4)
Interest Rate | PSO |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 2.4 | 3.6
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | 0.2 | 0.2
Interest Rate | SWEPCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
AOCI Gain (Loss) Net of Tax | 0.9 | 1.0
Portion Expected to be Reclassed to Net Income During the Next Twelve Months | $ 0.3 | $ 0.3

X
- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480870/815-30-50-1 + Details
Name: | us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 181 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-181 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EEE -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EEE -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EEE -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-15 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_AEPTexasInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_AppalachianPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_IndianaMichiganPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_PublicServiceCompanyOfOklahomaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_SouthwesternElectricPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=aep_InterestRateOnLongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |