GOODWILL AND INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Goodwill
Beginning balance			$ 2,412.8
Transfer of Films business			0.0
Goodwill impairment	$ (80.0)	$ 0.0	(80.0)	$ 0.0
Foreign currency translation and other			(51.3)
Ending balance	2,281.5		2,281.5
Accumulated impairment losses					$ 46.6
Electronics
Goodwill
Beginning balance			1,304.0
Transfer of Films business			7.9
Goodwill impairment			0.0
Foreign currency translation and other			(43.2)
Ending balance	1,268.7		1,268.7
Industrial & Specialty
Goodwill
Beginning balance			1,108.8
Transfer of Films business			(7.9)
Goodwill impairment			(80.0)
Foreign currency translation and other			(8.1)
Ending balance	$ 1,012.8		$ 1,012.8