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Cybersecurity Risk Management and Strategy Disclosure | 12 Months Ended
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Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items] |
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] | Cybersecurity risk management is an important part of MasTec's overall risk management efforts. We maintain a comprehensive enterprise-wide information security program that comprises policies and controls designed to identify, safeguard against, detect, respond to, mitigate and manage reasonably foreseeable cybersecurity risks and threats. Our approach utilizes diverse security tools to prevent, identify, investigate, resolve and recover from vulnerabilities and security incidents. These include, but are not limited to, internal reporting, monitoring and detection tools. We use a collaborative, enterprise-wide strategy to address cybersecurity risks and allocate significant resources to our cybersecurity and risk management processes, which efforts are intended to adapt to the evolving cybersecurity landscape and promptly address emerging threats. Our cybersecurity risk management program aligns with the National Institute of Standards and Technology framework and is organized into five key functions: identification, protection, detection, response and recovery. We regularly assess the threat landscape and employ a layered cybersecurity strategy to prevent, detect and mitigate threats. We regularly collect data on cybersecurity threats and risk areas and conduct periodic external penetration and other tests to assess the effectiveness of our processes and procedures. We assess risks associated with third-party providers as part of our overall cybersecurity risk management framework by reviewing system and organization controls reports, when available, and other independent reports. We also generally require third parties to, among other things, maintain security controls to protect our confidential information and to promptly notify us of material breaches that may impact our data. We engage third-party industry cybersecurity experts to evaluate and review our cybersecurity programs. Our cybersecurity risk management program encompasses such items as simulations, drills, assessments, and tabletop exercises with management's participation and incorporates third-party industry cybersecurity experts and advisors as appropriate. These simulations, drills and assessments are conducted to test our defenses from both a technical and an operational perspective. In addition, all employees with access to our information technology systems undergo security awareness training, with regular testing through simulated phishing emails. Certain employee positions require additional role-based, specialized security awareness or other cybersecurity training, as applicable. We also maintain a security operations center, which is staffed 24/7, to strengthen our monitoring and alerting efforts. We face cybersecurity threats in the ordinary course of our business and have experienced cybersecurity threats and breach attempts in the past. Such threats and breach attempts have not materially affected our business, strategy, results of operations or financial condition. At any given time, however, we may face known or unknown cybersecurity risks and threats that cannot be fully prevented or mitigated, and we may discover vulnerabilities in our cybersecurity programs. Therefore, we may not be successful in preventing or mitigating a cybersecurity incident that could have a material adverse effect on us. For more information on the cybersecurity risks we face, please refer to “We rely on information, communications and data systems in our operations. Systems and information technology interruptions and/or data security breaches could adversely affect our ability to operate, our operating results, our data security or our reputation.” in Item 1A. “Risk Factors.”
Cybersecurity Risk Management Processes Integrated [Flag] | true
Cybersecurity Risk Management Processes Integrated [Text Block] | Cybersecurity risk management is an important part of MasTec's overall risk management efforts. We maintain a comprehensive enterprise-wide information security program that comprises policies and controls designed to identify, safeguard against, detect, respond to, mitigate and manage reasonably foreseeable cybersecurity risks and threats. Our approach utilizes diverse security tools to prevent, identify, investigate, resolve and recover from vulnerabilities and security incidents. These include, but are not limited to, internal reporting, monitoring and detection tools. We use a collaborative, enterprise-wide strategy to address cybersecurity risks and allocate significant resources to our cybersecurity and risk management processes, which efforts are intended to adapt to the evolving cybersecurity landscape and promptly address emerging threats. Our cybersecurity risk management program aligns with the National Institute of Standards and Technology framework and is organized into five key functions: identification, protection, detection, response and recovery. We regularly assess the threat landscape and employ a layered cybersecurity strategy to prevent, detect and mitigate threats.
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] | Our Board of Directors has oversight of our enterprise risk assessment and risk management processes, as well as the steps taken to mitigate these risks, including for cybersecurity matters. The Audit Committee of our Board of Directors has oversight of cybersecurity risk assessment and risk management policies as part of its risk management oversight responsibilities, and is responsible for ensuring that the Company has processes in place to identify, evaluate and manage cybersecurity risks, as well as appropriate processes and programs to mitigate cybersecurity incidents if they occur. The Audit Committee actively engages in cybersecurity risk discussions and receives periodic updates on the Company's cybersecurity program from our CISO, including updates on various cybersecurity matters such as risk assessments, threats, incidents, prevention, detection and remediation of incidents, mitigation strategies, areas of emerging risk and industry trends, among other topics. Significant cybersecurity matters, including those related to incidents, are escalated to the Board of Directors.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] | Our cybersecurity program is led by our Chief Information Security Officer (“CISO”), who reports to our Chief Information Officer (“CIO”). Our CISO is responsible for identifying, assessing and managing material cybersecurity risks, establishing processes to monitor such risks, putting appropriate mitigation measures in place, maintaining appropriate policies and procedures for our cybersecurity program and providing periodic updates to the Audit Committee of our Board of Directors.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] | Our cybersecurity program is led by our Chief Information Security Officer (“CISO”), who reports to our Chief Information Officer (“CIO”). Our CISO is responsible for identifying, assessing and managing material cybersecurity risks, establishing processes to monitor such risks, putting appropriate mitigation measures in place, maintaining appropriate policies and procedures for our cybersecurity program and providing periodic updates to the Audit Committee of our Board of Directors. To this end, our cybersecurity team conducts annual reviews of enterprise-level cybersecurity risks. Additionally, we maintain company-wide policies and procedures concerning cybersecurity matters, which are subject to annual internal review, or more frequently, as warranted. MasTec's CISO oversees the development and implementation of our information security program and reports on cybersecurity matters to the Audit Committee. Our CISO has over 15 years of experience in cybersecurity oversight and holds industry-recognized information security certifications, such as the Certified Information Systems Security Professional (CISSP). The CISO is supported by our cybersecurity team composed of personnel with a broad range of professional cybersecurity experience and expertise, and also includes members with industry-recognized information security certifications.
Cybersecurity Risk Role of Management [Text Block] | Our cybersecurity program is led by our Chief Information Security Officer (“CISO”), who reports to our Chief Information Officer (“CIO”). Our CISO is responsible for identifying, assessing and managing material cybersecurity risks, establishing processes to monitor such risks, putting appropriate mitigation measures in place, maintaining appropriate policies and procedures for our cybersecurity program and providing periodic updates to the Audit Committee of our Board of Directors. To this end, our cybersecurity team conducts annual reviews of enterprise-level cybersecurity risks. Additionally, we maintain company-wide policies and procedures concerning cybersecurity matters, which are subject to annual internal review, or more frequently, as warranted. MasTec's CISO oversees the development and implementation of our information security program and reports on cybersecurity matters to the Audit Committee. Our CISO has over 15 years of experience in cybersecurity oversight and holds industry-recognized information security certifications, such as the Certified Information Systems Security Professional (CISSP). The CISO is supported by our cybersecurity team composed of personnel with a broad range of professional cybersecurity experience and expertise, and also includes members with industry-recognized information security certifications. Our CISO routinely informs our CIO, Chief Financial Officer and other members of management, as appropriate, about threats, including assessments of threat levels, trends, incidents and related remediation plans, including matters related to the prevention, detection and remediation of any incidents in accordance with our cybersecurity program. Our Board of Directors has oversight of our enterprise risk assessment and risk management processes, as well as the steps taken to mitigate these risks, including for cybersecurity matters. The Audit Committee of our Board of Directors has oversight of cybersecurity risk assessment and risk management policies as part of its risk management oversight responsibilities, and is responsible for ensuring that the Company has processes in place to identify, evaluate and manage cybersecurity risks, as well as appropriate processes and programs to mitigate cybersecurity incidents if they occur. The Audit Committee actively engages in cybersecurity risk discussions and receives periodic updates on the Company's cybersecurity program from our CISO, including updates on various cybersecurity matters such as risk assessments, threats, incidents, prevention, detection and remediation of incidents, mitigation strategies, areas of emerging risk and industry trends, among other topics. Significant cybersecurity matters, including those related to incidents, are escalated to the Board of Directors.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] | true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] | Our cybersecurity program is led by our Chief Information Security Officer (“CISO”), who reports to our Chief Information Officer (“CIO”). Our CISO is responsible for identifying, assessing and managing material cybersecurity risks, establishing processes to monitor such risks, putting appropriate mitigation measures in place, maintaining appropriate policies and procedures for our cybersecurity program and providing periodic updates to the Audit Committee of our Board of Directors.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] | Our CISO has over 15 years of experience in cybersecurity oversight and holds industry-recognized information security certifications, such as the Certified Information Systems Security Professional (CISSP). The CISO is supported by our cybersecurity team composed of personnel with a broad range of professional cybersecurity experience and expertise, and also includes members with industry-recognized information security certifications.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] | Our cybersecurity program is led by our Chief Information Security Officer (“CISO”), who reports to our Chief Information Officer (“CIO”). Our CISO is responsible for identifying, assessing and managing material cybersecurity risks, establishing processes to monitor such risks, putting appropriate mitigation measures in place, maintaining appropriate policies and procedures for our cybersecurity program and providing periodic updates to the Audit Committee of our Board of Directors. To this end, our cybersecurity team conducts annual reviews of enterprise-level cybersecurity risks. Additionally, we maintain company-wide policies and procedures concerning cybersecurity matters, which are subject to annual internal review, or more frequently, as warranted. MasTec's CISO oversees the development and implementation of our information security program and reports on cybersecurity matters to the Audit Committee. Our CISO has over 15 years of experience in cybersecurity oversight and holds industry-recognized information security certifications, such as the Certified Information Systems Security Professional (CISSP). The CISO is supported by our cybersecurity team composed of personnel with a broad range of professional cybersecurity experience and expertise, and also includes members with industry-recognized information security certifications. Our CISO routinely informs our CIO, Chief Financial Officer and other members of management, as appropriate, about threats, including assessments of threat levels, trends, incidents and related remediation plans, including matters related to the prevention, detection and remediation of any incidents in accordance with our cybersecurity program.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] | true

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