BUSINESS SEGMENTS - Segment assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total Assets	$ 9,444.3	$ 10,020.1
Operating segments
Segment Reporting Information [Line Items]
Total Assets	7,789.6	7,952.5
Operating segments | Subsea
Segment Reporting Information [Line Items]
Total Assets	6,455.1	6,532.5
Operating segments | Surface Technologies
Segment Reporting Information [Line Items]
Total Assets	1,334.5	1,420.0
Corporate
Segment Reporting Information [Line Items]
Total Assets	$ 1,654.7	$ 2,067.6