RESTRUCTURING COSTS - Summary of Changes in Restructuring Reserve (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 15.4	$ 34.0
Paid/Utilized	(18.8)	(19.3)
Expense	28.6	0.7	$ 1.4
Restructuring reserve, ending balance	25.2	15.4	34.0
Severance and benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	15.3	33.8
Paid/Utilized	(17.2)	(16.7)
Expense	27.0	(1.8)
Restructuring reserve, ending balance	25.1	15.3	33.8
Plant closing and other
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.1	0.2
Paid/Utilized	(1.6)	(2.6)
Expense	1.6	2.5
Restructuring reserve, ending balance	$ 0.1	$ 0.1	$ 0.2