RESTRUCTURING COSTS - Summary of Changes in Restructuring Reserve (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			$ 34.0	$ 69.3
Expense	$ (1.5)	$ (3.8)	0.1	(0.7)
Paid/Utilized			(17.5)	(24.9)
Restructuring reserve, ending balance	16.6	43.7	16.6	43.7
Severance and benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			33.8	68.9
Expense			(1.7)	(4.8)
Paid/Utilized			(15.7)	(21.0)
Restructuring reserve, ending balance	16.4	43.1	16.4	43.1
Plant closing and other
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			0.2	0.4
Expense			1.8	4.1
Paid/Utilized			(1.8)	(3.9)
Restructuring reserve, ending balance	$ 0.2	$ 0.6	$ 0.2	$ 0.6