Segments and Related Information (Tables)

12 Months Ended

Dec. 31, 2023

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 Years Ended December 31,
Revenue:	2023		2022		2021
Communications (a)	$	3,259.5	$	3,233.7	$	2,551.1
Clean Energy and Infrastructure	3,962.0		2,618.6		1,865.0
Power Delivery	2,735.1		2,725.2		1,016.8
Oil and Gas	2,072.8		1,219.6		2,540.5
Other	—		—		0.0
Eliminations	(33.5)		(19.1)		(21.6)
Consolidated revenue	$	11,995.9	$	9,778.0	$	7,951.8

(a)    Revenue generated primarily by utilities customers represented 24.3%, 23.6% and 20.8% of Communications segment revenue for the years ended December 31, 2023, 2022 and 2021, respectively.

	For the Years Ended December 31,
EBITDA:	2023		2022		2021
Communications	$	269.2	$	327.1	$	269.5
Clean Energy and Infrastructure	132.4		102.8		75.0
Power Delivery	207.8		202.9		68.0
Oil and Gas	284.4		163.5		557.6
Other	25.0		31.8		33.8
Segment EBITDA	$	918.8	$	828.1	$	1,003.8

	For the Years Ended December 31,
Depreciation and Amortization:	2023		2022		2021
Communications	$	136.8	$	126.4	$	99.3
Clean Energy and Infrastructure	144.2		87.0		43.5
Power Delivery	158.9		147.8		61.5
Oil and Gas	152.9		134.6		207.8
Other	—		—		0.0
Corporate	10.4		11.3		10.7
Consolidated depreciation and amortization	$	603.2	$	507.1	$	422.8

	As of December 31,
Assets:	2023		2022		2021
Communications	$	2,332.2	$	2,378.6	$	2,100.9
Clean Energy and Infrastructure	2,978.8		2,979.9		1,067.0
Power Delivery	1,837.1		1,967.9		2,017.2
Oil and Gas	1,758.0		1,544.2		1,527.6
Other	305.0		297.3		238.1
Corporate	162.4		125.4		170.6
Consolidated segment assets	$	9,373.5	$	9,293.3	$	7,121.4

	For the Years Ended December 31,
Capital Expenditures:	2023		2022		2021
Communications	$	29.5	$	87.1	$	50.6
Clean Energy and Infrastructure	30.9		35.8		44.6
Power Delivery	50.8		83.4		13.0
Oil and Gas	76.0		49.0		55.7
Other	—		—		0.0
Corporate	5.7		8.0		6.2
Consolidated capital expenditures	$	192.9	$	263.4	$	170.1

Reconciliation of Consolidated Income before Income Taxes to EBITDA

	For the Years Ended December 31,
EBITDA Reconciliation:	2023		2022		2021
(Loss) income before income taxes	$	(82.7)	$	43.1	$	430.1
Plus:
Interest expense, net	234.4		112.3		53.4
Depreciation	433.9		371.2		345.6
Amortization	169.2		135.9		77.2
Corporate EBITDA	163.9		165.6		97.5
Segment EBITDA	$	918.8	$	828.1	$	1,003.8