REVENUE - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Lease revenue	$ 83.1	$ 52.4	$ 201.3	$ 157.5
Total revenue	2,056.9	1,733.0	5,746.5	5,006.0
Services
Disaggregation of Revenue [Line Items]
Revenue	1,180.7	902.0	3,098.2	2,773.6
Products
Disaggregation of Revenue [Line Items]
Revenue	793.1	778.6	2,447.0	2,074.9
Subsea
Disaggregation of Revenue [Line Items]
Revenue	1,708.3	1,415.0	4,714.3	4,118.7
Subsea | Operating Segments
Disaggregation of Revenue [Line Items]
Lease revenue	39.7	14.0	65.1	44.3
Total revenue	1,708.3	1,415.0	4,714.3	4,118.7
Subsea | Services | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	1,126.0	845.0	2,937.5	2,611.0
Subsea | Products | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	542.6	556.0	1,711.7	1,463.4
Subsea | Latin America
Disaggregation of Revenue [Line Items]
Revenue	653.1	411.7	1,652.4	1,069.0
Subsea | Europe and Central Asia
Disaggregation of Revenue [Line Items]
Revenue	520.0	395.0	1,419.0	1,154.6
Subsea | North America
Disaggregation of Revenue [Line Items]
Revenue	269.2	205.1	771.3	582.3
Subsea | Africa
Disaggregation of Revenue [Line Items]
Revenue	187.6	216.5	614.2	653.3
Subsea | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	77.1	162.7	208.8	586.3
Subsea | Middle East
Disaggregation of Revenue [Line Items]
Revenue	1.3	24.0	48.6	73.2
Surface Technologies
Disaggregation of Revenue [Line Items]
Revenue	348.6	318.0	1,032.2	887.3
Surface Technologies | Operating Segments
Disaggregation of Revenue [Line Items]
Lease revenue	43.4	38.4	136.2	113.2
Total revenue	348.6	318.0	1,032.2	887.3
Surface Technologies | Services | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	54.7	57.0	160.7	162.6
Surface Technologies | Products | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	250.5	222.6	735.3	611.5
Surface Technologies | Latin America
Disaggregation of Revenue [Line Items]
Revenue	29.8	30.1	90.5	78.9
Surface Technologies | Europe and Central Asia
Disaggregation of Revenue [Line Items]
Revenue	54.8	42.1	150.0	121.6
Surface Technologies | North America
Disaggregation of Revenue [Line Items]
Revenue	137.5	146.2	433.8	406.9
Surface Technologies | Africa
Disaggregation of Revenue [Line Items]
Revenue	15.2	7.6	35.9	25.7
Surface Technologies | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	23.5	26.4	58.9	70.6
Surface Technologies | Middle East
Disaggregation of Revenue [Line Items]
Revenue	$ 87.8	$ 65.6	$ 263.1	$ 183.6