XML 30 R1.htm IDEA: XBRL DOCUMENT
v3.23.1

Cover |  | 12 Months Ended
--- | --- | ---
May 26, 2023 | Dec. 31, 2022
Entity Information [Line Items] |  |
Document Type | 8-K |
Document Period End Date | May 26, 2023 |
Entity File Number | 1-3525 |
Entity Registrant Name | AMERICAN ELECTRIC POWER CO INC. |
Entity Incorporation, State or Country Code | NY |
Entity Tax Identification Number | 13-4922640 |
Entity Address, Address Line One | 1 Riverside Plaza, |
Entity Address, City or Town | Columbus, |
Entity Address, State or Province | OH |
Entity Address, Postal Zip Code | 43215-2373 |
City Area Code | (614) |
Local Phone Number | 716-1000 |
Entity Central Index Key | 0000004904 |
Amendment Flag | false |
Document Fiscal Year Focus | 2022 |
Document Fiscal Period Focus | FY |
Auditor Firm ID | 238 |
Auditor Location | Columbus, Ohio |
Auditor Name | PricewaterhouseCoopers LLP |
AEP Texas Inc. [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 333-221643 |
Entity Registrant Name | AEP TEXAS INC. |
Entity Incorporation, State or Country Code | DE |
Entity Tax Identification Number | 51-0007707 |
Entity Central Index Key | 0001721781 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
AEP Transmission Co [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 333-217143 |
Entity Registrant Name | AEP TRANSMISSION COMPANY, LLC |
Entity Incorporation, State or Country Code | DE |
Entity Tax Identification Number | 46-1125168 |
Entity Central Index Key | 0001702494 |
Auditor Firm ID | 238 |
Auditor Location | Columbus, Ohio |
Auditor Name | PricewaterhouseCoopers LLP |
Appalachian Power Co [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 1-3457 |
Entity Registrant Name | APPALACHIAN POWER COMPANY |
Entity Incorporation, State or Country Code | VA |
Entity Tax Identification Number | 54-0124790 |
Entity Central Index Key | 0000006879 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
Indiana Michigan Power Co [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 1-3570 |
Entity Registrant Name | INDIANA MICHIGAN POWER COMPANY |
Entity Incorporation, State or Country Code | IN |
Entity Tax Identification Number | 35-0410455 |
Entity Central Index Key | 0000050172 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
Ohio Power Co [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 1-6543 |
Entity Registrant Name | OHIO POWER COMPANY |
Entity Incorporation, State or Country Code | OH |
Entity Tax Identification Number | 31-4271000 |
Entity Central Index Key | 0000073986 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
Public Service Co Of Oklahoma [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 0-343 |
Entity Registrant Name | PUBLIC SERVICE COMPANY OF OKLAHOMA |
Entity Incorporation, State or Country Code | OK |
Entity Tax Identification Number | 73-0410895 |
Entity Central Index Key | 0000081027 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
Southwestern Electric Power Co [Member] |  |
Entity Information [Line Items] |  |
Entity File Number | 1-3146 |
Entity Registrant Name | SOUTHWESTERN ELECTRIC POWER COMPANY |
Entity Incorporation, State or Country Code | DE |
Entity Tax Identification Number | 72-0323455 |
Entity Central Index Key | 0000092487 |
Auditor Firm ID |  | 238
Auditor Location |  | Columbus, Ohio
Auditor Name |  | PricewaterhouseCoopers LLP
The NASDAQ Stock Market | Common Stock, $6.50 par value [Member] |  |
Entity Information [Line Items] |  |
Title of 12(b) Security | Common Stock, $6.50 par value |
Trading Symbol | AEP |
Security Exchange Name | NASDAQ |
The NASDAQ Stock Market | 6.125% Corporate Units |  |
Entity Information [Line Items] |  |
Title of 12(b) Security | 6.125% Corporate Units |
Trading Symbol | AEPPZ |
Security Exchange Name | NASDAQ |

X
- Definition Boolean flag that is true when the XBRL content amends previously-filed or accepted submission. + References No definition available. + Details
Name: | dei_AmendmentFlag
Namespace Prefix: | dei_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition PCAOB issued Audit Firm Identifier + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 10-K -Number 249 -Section 310 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 20-F -Number 249 -Section 220 -Subsection f Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 40-F -Number 249 -Section 240 -Subsection f + Details
Name: | dei_AuditorFirmId
Namespace Prefix: | dei_
Data Type: | dei:nonemptySequenceNumberItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 10-K -Number 249 -Section 310 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 20-F -Number 249 -Section 220 -Subsection f Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 40-F -Number 249 -Section 240 -Subsection f + Details
Name: | dei_AuditorLocation
Namespace Prefix: | dei_
Data Type: | dei:internationalNameItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 10-K -Number 249 -Section 310 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 20-F -Number 249 -Section 220 -Subsection f Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form 40-F -Number 249 -Section 240 -Subsection f + Details
Name: | dei_AuditorName
Namespace Prefix: | dei_
Data Type: | dei:internationalNameItemType
Balance Type: | na
Period Type: | duration

X
- Definition Area code of city + References No definition available. + Details
Name: | dei_CityAreaCode
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY. + References No definition available. + Details
Name: | dei_DocumentFiscalPeriodFocus
Namespace Prefix: | dei_
Data Type: | dei:fiscalPeriodItemType
Balance Type: | na
Period Type: | duration

X
- Definition This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. + References No definition available. + Details
Name: | dei_DocumentFiscalYearFocus
Namespace Prefix: | dei_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. + References No definition available. + Details
Name: | dei_DocumentPeriodEndDate
Namespace Prefix: | dei_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. + References No definition available. + Details
Name: | dei_DocumentType
Namespace Prefix: | dei_
Data Type: | dei:submissionTypeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Address Line 1 such as Attn, Building Name, Street Name + References No definition available. + Details
Name: | dei_EntityAddressAddressLine1
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Name of the City or Town + References No definition available. + Details
Name: | dei_EntityAddressCityOrTown
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Code for the postal or zip code + References No definition available. + Details
Name: | dei_EntityAddressPostalZipCode
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Name of the state or province. + References No definition available. + Details
Name: | dei_EntityAddressStateOrProvince
Namespace Prefix: | dei_
Data Type: | dei:stateOrProvinceItemType
Balance Type: | na
Period Type: | duration

X
- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Exchange Act -Number 240 -Section 12 -Subsection b-2 + Details
Name: | dei_EntityCentralIndexKey
Namespace Prefix: | dei_
Data Type: | dei:centralIndexKeyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen. + References No definition available. + Details
Name: | dei_EntityFileNumber
Namespace Prefix: | dei_
Data Type: | dei:fileNumberItemType
Balance Type: | na
Period Type: | duration

X
- Definition Two-character EDGAR code representing the state or country of incorporation. + References No definition available. + Details
Name: | dei_EntityIncorporationStateCountryCode
Namespace Prefix: | dei_
Data Type: | dei:edgarStateCountryItemType
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: | dei_EntityInformationLineItems
Namespace Prefix: | dei_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Exchange Act -Number 240 -Section 12 -Subsection b-2 + Details
Name: | dei_EntityRegistrantName
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Exchange Act -Number 240 -Section 12 -Subsection b-2 + Details
Name: | dei_EntityTaxIdentificationNumber
Namespace Prefix: | dei_
Data Type: | dei:employerIdItemType
Balance Type: | na
Period Type: | duration

X
- Definition Local phone number for entity. + References No definition available. + Details
Name: | dei_LocalPhoneNumber
Namespace Prefix: | dei_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Title of a 12(b) registered security. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Exchange Act -Number 240 -Section 12 -Subsection b + Details
Name: | dei_Security12bTitle
Namespace Prefix: | dei_
Data Type: | dei:securityTitleItemType
Balance Type: | na
Period Type: | duration

X
- Definition Name of the Exchange on which a security is registered. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Exchange Act -Number 240 -Section 12 -Subsection d1-1 + Details
Name: | dei_SecurityExchangeName
Namespace Prefix: | dei_
Data Type: | dei:edgarExchangeCodeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Trading symbol of an instrument as listed on an exchange. + References No definition available. + Details
Name: | dei_TradingSymbol
Namespace Prefix: | dei_
Data Type: | dei:tradingSymbolItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

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

X
- Details
Name: | dei_EntityListingsExchangeAxis=exch_XNAS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=aep_PreferredStock2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |