GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill, impairment charges			$ 3,083.4	$ 1,988.7
Amortization		$ 94.1	103.4	$ 104.7
Amortization expense, next 12 months		87.0
Amortization expense, year two		87.0
Amortization expense, year three		87.0
Amortization expense, year four		87.0
Amortization expense, year five		87.0
Amortization expense, Thereafter		$ 351.0
Subsea
Goodwill [Line Items]
Goodwill, impairment charges	$ 2,747.5		2,747.5
Surface Technologies
Goodwill [Line Items]
Goodwill, impairment charges	$ 335.9		$ 335.9