REVENUE - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Lease revenue	$ 64.0	$ 60.1	$ 118.2	$ 105.1
Total revenue	1,972.2	1,717.2	3,689.6	3,273.0
Services
Disaggregation of Revenue [Line Items]
Revenue	1,049.4	974.9	1,917.5	1,871.6
Products
Disaggregation of Revenue [Line Items]
Revenue	858.8	682.2	1,653.9	1,296.3
Subsea
Disaggregation of Revenue [Line Items]
Revenue	1,618.4	1,414.6	3,006.0	2,703.7
Subsea | Operating Segments
Disaggregation of Revenue [Line Items]
Lease revenue	17.9	18.3	25.4	30.3
Total revenue	1,618.4	1,414.6	3,006.0	2,703.7
Subsea | Services | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	996.2	920.4	1,811.5	1,766.0
Subsea | Products | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	604.3	475.9	1,169.1	907.4
Subsea | Latin America
Disaggregation of Revenue [Line Items]
Revenue	558.9	332.5	999.3	657.3
Subsea | Europe and Central Asia
Disaggregation of Revenue [Line Items]
Revenue	520.5	403.6	899.0	759.6
Subsea | North America
Disaggregation of Revenue [Line Items]
Revenue	252.2	176.8	502.1	377.2
Subsea | Africa
Disaggregation of Revenue [Line Items]
Revenue	216.1	253.7	426.6	436.8
Subsea | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	59.8	202.1	131.7	423.6
Subsea | Middle East
Disaggregation of Revenue [Line Items]
Revenue	10.9	45.9	47.3	49.2
Surface Technologies
Disaggregation of Revenue [Line Items]
Revenue	353.8	302.6	683.6	569.3
Surface Technologies | Operating Segments
Disaggregation of Revenue [Line Items]
Lease revenue	46.1	41.8	92.8	74.8
Total revenue	353.8	302.6	683.6	569.3
Surface Technologies | Services | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	53.2	54.5	106.0	105.6
Surface Technologies | Products | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	254.5	206.3	484.8	388.9
Surface Technologies | Latin America
Disaggregation of Revenue [Line Items]
Revenue	33.5	27.2	60.7	48.8
Surface Technologies | Europe and Central Asia
Disaggregation of Revenue [Line Items]
Revenue	51.0	40.3	95.2	79.5
Surface Technologies | North America
Disaggregation of Revenue [Line Items]
Revenue	150.2	144.5	296.3	260.7
Surface Technologies | Africa
Disaggregation of Revenue [Line Items]
Revenue	11.0	9.6	20.7	18.1
Surface Technologies | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	17.5	20.6	35.4	44.2
Surface Technologies | Middle East
Disaggregation of Revenue [Line Items]
Revenue	$ 90.6	$ 60.4	$ 175.3	$ 118.0