IMPAIRMENT, RESTRUCTURING AND OTHER EXPENSES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring and Impairment [Line Items]
Impairment of property, plant and equipment	$ 190.4
Goodwill, impairment charges		$ 3,083.4
Operating lease right-of-use assets	20.0
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]		Total impairment, restructuring and other expenses
Subsea
Restructuring and Impairment [Line Items]
Impairment of property, plant and equipment	88.4
Goodwill, impairment charges		$ 2,747.5
Surface Technologies
Restructuring and Impairment [Line Items]
Impairment of property, plant and equipment	$ 82.0
Goodwill, impairment charges		$ 335.9