XML 194 R152.htm IDEA: XBRL DOCUMENT
v3.25.2

FINANCING ACTIVITIES - Schedule of Utility Money Pool Participants' Money Pool Activity and Authorized Borrowing Limits (Details) - Utility $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2025 USD ($)
AEP Texas |
Short-Term Debt [Line Items] |
Maximum Borrowings | $ 468.4
Maximum Loans | 112.8
Average Borrowings | 182.7
Average Loans | 62.5
Authorized Short-term Borrowing Limit | 600.0
AEP Texas | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | (109.5)
AEPTCo |
Short-Term Debt [Line Items] |
Maximum Borrowings | 403.6
Maximum Loans | 312.2
Average Borrowings | 192.0
Average Loans | 39.8
Authorized Short-term Borrowing Limit | 820.0
AEPTCo | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | 32.7
APCo |
Short-Term Debt [Line Items] |
Maximum Borrowings | 263.5
Maximum Loans | 242.1
Average Borrowings | 141.3
Average Loans | 30.0
Authorized Short-term Borrowing Limit | 750.0
APCo | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | (154.8)
I&M |
Short-Term Debt [Line Items] |
Maximum Borrowings | 145.2
Maximum Loans | 19.3
Average Borrowings | 77.2
Average Loans | 6.1
Authorized Short-term Borrowing Limit | 500.0
I&M | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | (25.7)
OPCo |
Short-Term Debt [Line Items] |
Maximum Borrowings | 270.9
Maximum Loans | 165.9
Average Borrowings | 71.6
Average Loans | 81.7
Authorized Short-term Borrowing Limit | 600.0
OPCo | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | (203.0)
PSO |
Short-Term Debt [Line Items] |
Maximum Borrowings | 505.1
Maximum Loans | 391.5
Average Borrowings | 204.1
Average Loans | 167.0
Authorized Short-term Borrowing Limit | 750.0
PSO | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | (319.7)
SWEPCo |
Short-Term Debt [Line Items] |
Maximum Borrowings | 471.9
Maximum Loans | 76.3
Average Borrowings | 285.9
Average Loans | 10.2
Authorized Short-term Borrowing Limit | 750.0
SWEPCo | Related Party |
Short-Term Debt [Line Items] |
Net Loans to (Borrowings from) | $ 76.3

X
- Definition Authorized Short-term Borrowing Limit by regulatory orders. + References No definition available. + Details
Name: | aep_AuthorizedShortTermBorrowingLimit
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Average Borrowings from a Money Pool during the period. The Money Pool represents centralized funding mechanism AEP uses to meet the short-term cash requirements of certain subsidiaries. + References No definition available. + Details
Name: | aep_AverageBorrowingsfromMoneyPool
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Average Loans to a Money Pool during the period. The Money Pool represents centralized funding mechanism AEP uses to meet the short-term cash requirements of certain subsidiaries. + References No definition available. + Details
Name: | aep_AverageLoanstoMoneyPool
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum Borrowings from a Money Pool at anytime during the period. The Money Pool represents a centralized funding mechanism AEP uses to meet the short-term cash requirements of certain subsidiaries. + References No definition available. + Details
Name: | aep_MaximumBorrowingsfromMoneyPool
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maximum Loans to a Money Pool at anytime during the period. The Money Pool represents centralized funding mechanism AEP uses to meet the short-term cash requirements of certain subsidiaries. + References No definition available. + Details
Name: | aep_MaximumLoanstoMoneyPool
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Loans to (Borrowings from) the Utility Money + References No definition available. + Details
Name: | aep_NetLoansToBorrowingsFromTheUtilityMoney
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | aep_MoneyPoolParticipantbyCompanyTypeAxis=aep_UtilityMember
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: | us-gaap_RelatedPartyTransactionAxis=us-gaap_RelatedPartyMember
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: |

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_OhioPowerCompanyMember
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: |