Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	The operations of AEP’s electric utility subsidiaries are subject to extensive and rigorous mandatory cyber and physical security requirements that are developed and enforced by NERC to protect grid security and reliability. Cook Plant is also subject to NRC regulation for cybersecurity. AEP’s enterprise-wide security program includes cyber and physical security and incorporates many of the guidelines set forth in the National Institute of Standards and Technology Cybersecurity Framework. AEP'’s Chief Security Officer (CSO) has accountability for cyber aspects of third-party risk and data loss prevention and is also its NERC Critical Infrastructure Protection Senior Manager, who is responsible for ensuring alignment of compliance with the enterprise-wide security program. AEP’s CSO possesses extensive experience across cybersecurity, risk and data controls and infrastructure engineering. AEP’s CSO was the Chief Security Officer at Bread Financial Holdings, Inc., a publicly registered financial services company, and an executive director of cyber security at JPMorgan Chase & Co. prior to joining AEP. Critical cyber assets, such as data centers, power plants, transmission operations centers and business networks are protected using multiple layers of cybersecurity controls and authentication. Cyber hackers and other malicious actors have caused material disruption by successfully breaching a number of very secure facilities of entities across the spectrum of industries, including federal agencies and financial institutions. As understanding of these events develop, AEP has adopted a defense in depth approach to cybersecurity and continually assesses its cybersecurity tools and processes to determine where to strengthen its defenses. These strategies include monitoring, alerting and emergency response, forensic analysis, disaster recovery, threat sharing and criminal activity reporting. This approach has allowed AEP to deal with cyber and related threats, intrusions and attempted breaches in real-time and to limit their impact to levels that would be expected in the ordinary course of business in the absence of such malicious activity. AEP is not aware of any occurrence from cybersecurity threats, including as a result of any previous cybersecurity incidents, that has materially affected or is reasonably likely to materially affect AEP’s business strategy, results of operations, cash flows or financial condition. AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes. These procedures are designed to ensure that any material information regarding potentially relevant cyber incidents is elevated in a timely manner both to the appropriate leadership and, where applicable, to our external financial reporting and disclosure team. AEP’s enterprise-wide security program continually adjusts staff and resources in response to the evolving threat landscape. The costs for such investments are material and have remained generally consistent over time, a pattern that is expected to continue. In addition, AEP maintains cyber liability insurance to cover certain damages caused by cyber incidents. AEP’s CSO leads the cybersecurity and physical security teams which are responsible for the design, implementation and execution of AEP’s security risk management strategy, which includes cybersecurity. AEP’s cybersecurity team operates a 24/7 Cybersecurity Intelligence and Response Center responsible for monitoring the AEP System for cyber risks and threats. The cybersecurity team constantly scans the AEP System for cyber risks and threats. In addition, under the direction of the CSO, the cybersecurity team actively monitors best practices, performs penetration testing, leads response exercises and internal awareness campaigns and provides training and communication across the organization. AEP’s security awareness training is mandatory for all employees and includes regular phish email testing to train employees to identify malicious emails that could put AEP at risk. AEP also continually reviews its business continuity plan to develop an effective recovery strategy that seeks to decrease response times, limit financial impacts and maintain customer confidence during any business interruption. AEP administers a third-party risk governance program that identifies potential risks introduced through third-party relationships, such as vendors, software and hardware manufacturers or professional service providers. As warranted, AEP obtains certain contractual security guarantees and assurances with these third-party relationships to help ensure the security and safety of its information. The cyber security team works closely with a broad range of departments, including legal, regulatory, corporate communications, internal audit services, information technology and operational technology functions critical to the power grid. The cybersecurity team collaborates with partners from both industry and government, and routinely participates in industry-wide programs that exchange knowledge of threats with utility peers, industry and federal agencies. AEP is an active member of a number of industry-specific threat and information sharing communities including the Department of Homeland Security’s Joint Cyber Defense Collaborative, the Electricity Information Sharing and Analysis Center and the National Defense Information Sharing and Analysis Center. AEP participates in classified briefings to maintain an awareness of current cybersecurity threats and vulnerabilities. AEP continues to work with nonaffiliated entities to do penetration testing and to design and implement appropriate remediation strategies. There can be no assurance, however, that these efforts will be effective to prevent material interruption of services or other damages to AEP's business or operations in connection with any cyber-related incident. See “Risk Factors - Risks Related to Market, Economic or Financial Volatility and Other Risks - Physical attacks or hostile cyber intrusions could severely impair operations, lead to the disclosure of confidential information and damage AEP’s reputation”.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	AEP has undertaken a variety of actions to monitor and address cyber-related risks. Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters. AEP’s Chief Executive Officer and executive team participate in interactive threat briefings from AEP’s CSO and/or Chief Information & Technology Officer on a regular basis. AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes. These procedures are designed to ensure that any material information regarding potentially relevant cyber incidents is elevated in a timely manner both to the appropriate leadership and, where applicable, to our external financial reporting and disclosure team. AEP’s enterprise-wide security program continually adjusts staff and resources in response to the evolving threat landscape. The costs for such investments are material and have remained generally consistent over time, a pattern that is expected to continue. In addition, AEP maintains cyber liability insurance to cover certain damages caused by cyber incidents. AEP’s CSO leads the cybersecurity and physical security teams which are responsible for the design, implementation and execution of AEP’s security risk management strategy, which includes cybersecurity. AEP’s cybersecurity team operates a 24/7 Cybersecurity Intelligence and Response Center responsible for monitoring the AEP System for cyber risks and threats. The cybersecurity team constantly scans the AEP System for cyber risks and threats. In addition, under the direction of the CSO, the cybersecurity team actively monitors best practices, performs penetration testing, leads response exercises and internal awareness campaigns and provides training and communication across the organization. AEP’s security awareness training is mandatory for all employees and includes regular phish email testing to train employees to identify malicious emails that could put AEP at risk.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	AEP has undertaken a variety of actions to monitor and address cyber-related risks. Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters. AEP’s Chief Executive Officer and executive team participate in interactive threat briefings from AEP’s CSO and/or Chief Information & Technology Officer on a regular basis. AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes. These procedures are designed to ensure that any material information regarding potentially relevant cyber incidents is elevated in a timely manner both to the appropriate leadership and, where applicable, to our external financial reporting and disclosure team. AEP’s enterprise-wide security program continually adjusts staff and resources in response to the evolving threat landscape. The costs for such investments are material and have remained generally consistent over time, a pattern that is expected to continue. In addition, AEP maintains cyber liability insurance to cover certain damages caused by cyber incidents.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters.
Cybersecurity Risk Role of Management [Text Block]	AEP’s CSO leads the cybersecurity and physical security teams which are responsible for the design, implementation and execution of AEP’s security risk management strategy, which includes cybersecurity. AEP’s cybersecurity team operates a 24/7 Cybersecurity Intelligence and Response Center responsible for monitoring the AEP System for cyber risks and threats. The cybersecurity team constantly scans the AEP System for cyber risks and threats. In addition, under the direction of the CSO, the cybersecurity team actively monitors best practices, performs penetration testing, leads response exercises and internal awareness campaigns and provides training and communication across the organization. AEP’s security awareness training is mandatory for all employees and includes regular phish email testing to train employees to identify malicious emails that could put AEP at risk.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	AEP'’s Chief Security Officer (CSO) has accountability for cyber aspects of third-party risk and data loss prevention and is also its NERC Critical Infrastructure Protection Senior Manager, who is responsible for ensuring alignment of compliance with the enterprise-wide security program.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	AEP’s CSO possesses extensive experience across cybersecurity, risk and data controls and infrastructure engineering. AEP’s CSO was the Chief Security Officer at Bread Financial Holdings, Inc., a publicly registered financial services company, and an executive director of cyber security at JPMorgan Chase & Co. prior to joining AEP.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Cybersecurity Risk Management and Strategy Disclosure

12 Months Ended

Dec. 31, 2024

Cybersecurity Risk Management, Strategy, and Governance [Line Items]

Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

The operations of AEP’s electric utility subsidiaries are subject to extensive and rigorous mandatory cyber and physical security requirements that are developed and enforced by NERC to protect grid security and reliability. Cook Plant is also subject to NRC regulation for cybersecurity. AEP’s enterprise-wide security program includes cyber and physical security and incorporates many of the guidelines set forth in the National Institute of Standards and Technology Cybersecurity Framework. AEP'’s Chief Security Officer (CSO) has accountability for cyber aspects of third-party risk and data loss prevention and is also its NERC Critical Infrastructure Protection Senior Manager, who is responsible for ensuring alignment of compliance with the enterprise-wide security program. AEP’s CSO possesses extensive experience across cybersecurity, risk and data controls and infrastructure engineering. AEP’s CSO was the Chief Security Officer at Bread Financial Holdings, Inc., a publicly registered financial services company, and an executive director of cyber security at JPMorgan Chase & Co. prior to joining AEP.

Critical cyber assets, such as data centers, power plants, transmission operations centers and business networks are protected using multiple layers of cybersecurity controls and authentication. Cyber hackers and other malicious actors have caused material disruption by successfully breaching a number of very secure facilities of entities across the spectrum of industries, including federal agencies and financial institutions. As understanding of these events develop, AEP has adopted a defense in depth approach to cybersecurity and continually assesses its cybersecurity tools and processes to determine where to strengthen its defenses. These strategies include monitoring, alerting and emergency response, forensic analysis, disaster recovery, threat sharing and criminal activity reporting. This approach has allowed AEP to deal with cyber and related threats, intrusions and attempted breaches in real-time and to limit their impact to levels that would be expected in the ordinary course of business in the absence of such malicious activity. AEP is not aware of any occurrence from cybersecurity threats, including as a result of

any previous cybersecurity incidents, that has materially affected or is reasonably likely to materially affect AEP’s business strategy, results of operations, cash flows or financial condition.

AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes. These procedures are designed to ensure that any material information regarding potentially relevant cyber incidents is elevated in a timely manner both to the appropriate leadership and, where applicable, to our external financial reporting and disclosure team. AEP’s enterprise-wide security program continually adjusts staff and resources in response to the evolving threat landscape. The costs for such investments are material and have remained generally consistent over time, a pattern that is expected to continue. In addition, AEP maintains cyber liability insurance to cover certain damages caused by cyber incidents.

AEP’s CSO leads the cybersecurity and physical security teams which are responsible for the design, implementation and execution of AEP’s security risk management strategy, which includes cybersecurity. AEP’s cybersecurity team operates a 24/7 Cybersecurity Intelligence and Response Center responsible for monitoring the AEP System for cyber risks and threats. The cybersecurity team constantly scans the AEP System for cyber risks and threats. In addition, under the direction of the CSO, the cybersecurity team actively monitors best practices, performs penetration testing, leads response exercises and internal awareness campaigns and provides training and communication across the organization. AEP’s security awareness training is mandatory for all employees and includes regular phish email testing to train employees to identify malicious emails that could put AEP at risk.

AEP also continually reviews its business continuity plan to develop an effective recovery strategy that seeks to decrease response times, limit financial impacts and maintain customer confidence during any business interruption. AEP administers a third-party risk governance program that identifies potential risks introduced through third-party relationships, such as vendors, software and hardware manufacturers or professional service providers. As warranted, AEP obtains certain contractual security guarantees and assurances with these third-party relationships to help ensure the security and safety of its information. The cyber security team works closely with a broad range of departments, including legal, regulatory, corporate communications, internal audit services, information technology and operational technology functions critical to the power grid.

The cybersecurity team collaborates with partners from both industry and government, and routinely participates in industry-wide programs that exchange knowledge of threats with utility peers, industry and federal agencies. AEP is an active member of a number of industry-specific threat and information sharing communities including the Department of Homeland Security’s Joint Cyber Defense Collaborative, the Electricity Information Sharing and Analysis Center and the National Defense Information Sharing and Analysis Center. AEP participates in classified briefings to maintain an awareness of current cybersecurity threats and vulnerabilities. AEP continues to work with nonaffiliated entities to do penetration testing and to design and implement appropriate remediation strategies. There can be no assurance, however, that these efforts will be effective to prevent material interruption of services or other damages to AEP's business or operations in connection with any cyber-related incident. See “Risk Factors - Risks Related to Market, Economic or Financial Volatility and Other Risks - Physical attacks or hostile cyber intrusions could severely impair operations, lead to the disclosure of confidential information and damage AEP’s reputation”.

Cybersecurity Risk Management Processes Integrated [Flag]

true

Cybersecurity Risk Management Processes Integrated [Text Block]

AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes.

Cybersecurity Risk Management Third Party Engaged [Flag]

true

Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]

true

Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]

false

Cybersecurity Risk Board of Directors Oversight [Text Block]

AEP has undertaken a variety of actions to monitor and address cyber-related risks. Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters. AEP’s Chief Executive Officer and executive team participate in interactive threat briefings from AEP’s CSO and/or Chief Information & Technology Officer on a regular basis. AEP’s strategy and procedure for managing cyber-related risks is integrated within its enterprise risk management processes. These procedures are designed to ensure that any material information regarding potentially relevant cyber incidents is elevated in a timely manner both to the appropriate leadership and, where applicable, to our external financial reporting and disclosure team. AEP’s enterprise-wide security program continually adjusts staff and resources in response to the evolving threat landscape. The costs for such investments are material and have remained generally consistent over time, a pattern that is expected to continue. In addition, AEP maintains cyber liability insurance to cover certain damages caused by cyber incidents.

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]

Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]

Cybersecurity and the effectiveness of AEP’s cybersecurity processes are reviewed annually with the Board of Directors and at several meetings throughout the year with the Technology Committee of the Board, the principal committee that exercises oversight with respect to these matters.

Cybersecurity Risk Role of Management [Text Block]

Cybersecurity Risk Management Positions or Committees Responsible [Flag]

true

Cybersecurity Risk Management Positions or Committees Responsible [Text Block]

AEP'’s Chief Security Officer (CSO) has accountability for cyber aspects of third-party risk and data loss prevention and is also its NERC Critical Infrastructure Protection Senior Manager, who is responsible for ensuring alignment of compliance with the enterprise-wide security program.

Cybersecurity Risk Management Expertise of Management Responsible [Text Block]

AEP’s CSO possesses extensive experience across cybersecurity, risk and data controls and infrastructure engineering. AEP’s CSO was the Chief Security Officer at Bread Financial Holdings, Inc., a publicly registered financial services company, and an executive director of cyber security at JPMorgan Chase & Co. prior to joining AEP.

Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]

Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]

true