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Segments and Related Information (Tables)
 9 Months Ended
Sep. 30, 2024
Segment Reporting [Abstract]  
Schedule of Financial Information by Reportable Segment
Summarized financial information for MasTec’s reportable segments is presented and reconciled to consolidated financial information for total MasTec in the following tables, including a reconciliation of consolidated income before income taxes to EBITDA, all of which are presented in millions. The tables below may contain slight summation differences due to rounding.
For the Three Months Ended September 30, For the Nine Months Ended September 30,
Revenue:2024202320242023
Communications (a)
$927.2 $824.4 $2,484.7 $2,499.6 
Clean Energy and Infrastructure
1,138.4 1,099.9 2,834.2 2,894.5 
Power Delivery
712.5 665.0 1,920.1 2,077.1 
Oil and Gas
497.8 672.3 1,704.0 1,270.6 
Other
— — — — 
Eliminations
(23.5)(4.5)(42.6)(25.9)
Consolidated revenue$3,252.4 $3,257.1 $8,900.4 $8,715.9 
(a)    Revenue generated primarily by utilities customers represented 23.0% and 25.0% of Communications segment revenue for the three month periods ended September 30, 2024 and 2023, respectively, and represented 25.1% and 24.1% for the nine month periods ended September 30, 2024 and 2023, respectively.
For the Three Months Ended September 30, For the Nine Months Ended September 30,
EBITDA:2024202320242023
Communications
$106.6 $73.4 $237.3 $215.7 
Clean Energy and Infrastructure
85.0 42.4 152.8 80.9 
Power Delivery
54.5 56.5 133.2 161.0 
Oil and Gas
103.1 97.3 330.9 188.9 
Other
7.4 4.4 17.2 18.2 
Segment EBITDA$356.6 $274.0 $871.4 $664.7 
For the Three Months Ended September 30, For the Nine Months Ended September 30,
Depreciation and Amortization:2024202320242023
Communications
$24.5 $37.0 $90.2 $105.6 
Clean Energy and Infrastructure
30.2 37.1 93.7 107.3 
Power Delivery
29.3 39.9 97.7 119.4 
Oil and Gas
27.9 40.7 102.2 111.6 
Other
— — — — 
Corporate
2.7 2.6 7.6 7.7 
Consolidated depreciation and amortization$114.6 $157.3 $391.4 $451.6 
Assets:September 30,
2024		December 31,
2023
Communications
$2,203.9 $2,332.2 
Clean Energy and Infrastructure
2,686.3 2,978.8 
Power Delivery
1,858.8 1,837.1 
Oil and Gas
1,583.1 1,758.0 
Other
309.6 305.0 
Corporate
121.3 162.4 
Consolidated assets$8,763.0 $9,373.5 
Reconciliation of Consolidated Income before Income Taxes to EBITDA
For the Three Months Ended September 30, For the Nine Months Ended September 30,
EBITDA Reconciliation:2024202320242023
Income (loss) before income taxes$137.0 $22.9 $154.5 $(82.7)
Plus:
Interest expense, net47.0 62.6 149.7 174.7 
Depreciation80.2 115.0 289.8 325.3 
Amortization34.4 42.3 101.7 126.3 
Corporate EBITDA
58.0 31.3 175.8 121.2 
Segment EBITDA$356.6 $274.0 $871.4 $664.7