IMPAIRMENT, RESTRUCTURING AND OTHER EXPENSES - Goodwill and long-lived assets impairments goodwill and long-lived assets impairments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring and Impairment [Line Items]
Total impairments	$ 4.7	$ 49.1	$ 3,273.8
Subsea
Restructuring and Impairment [Line Items]
Total impairments	1.9	44.2	2,854.5
Surface Technologies
Restructuring and Impairment [Line Items]
Total impairments	2.8	1.9	419.3
Corporate and other
Restructuring and Impairment [Line Items]
Total impairments	$ 0.0	$ 3.0	$ 0.0