IMPAIRMENT, RESTRUCTURING AND OTHER EXPENSES - Restructuring and Other Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring and Impairment [Line Items]
Restructuring and other charges	$ 17.6	$ 70.4	$ (23.6)
COVID-19 expenses		57.8
Subsea
Restructuring and Impairment [Line Items]
Restructuring and other charges	9.3	52.9	(46.4)
COVID-19 expenses		50.1
Surface Technologies
Restructuring and Impairment [Line Items]
Restructuring and other charges	5.7	13.2	18.7
COVID-19 expenses		7.7
Corporate and other
Restructuring and Impairment [Line Items]
Restructuring and other charges	$ 2.6	4.3	$ 4.1
COVID-19 expenses		$ 0.0