XML 178 R137.htm IDEA: XBRL DOCUMENT
v3.25.1

FINANCING ACTIVITIES - Dividend Restrictions Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2025
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
I&M |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
AEP Texas |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
APCo |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
SWEPCo |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
PSO |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%
AEPTCo |
Dividends Payable [Line Items] |
Maximum percentage debt to capitalization | 67.50%

X
- Definition Maximum level of debt to capitalization persuant to credit agreement leverage restrictions. + References No definition available. + Details
Name: | aep_MaximumPercentageDebtToCapitalization
Namespace Prefix: | aep_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
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 No definition available. + Details
Name: | us-gaap_DividendsPayableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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