Document and Entity Information
Jan. 21, 2022
Cover [Abstract]  
Entity Registrant Name MASTEC INC
Amendment Flag false
Entity Central Index Key 0000015615
Document Type 8-K
Document Period End Date Jan. 21, 2022
Entity Incorporation State Country Code FL
Entity File Number 001-08106
Entity Tax Identification Number 65-0829355
Entity Address, Address Line One 800 S. Douglas Road
Entity Address, Address Line Two 12th Floor
Entity Address, City or Town Coral Gables
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33134
City Area Code (305)
Local Phone Number 599-1800
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.10 Par Value
Trading Symbol MTZ
Security Exchange Name NYSE
Entity Emerging Growth Company false