EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Schedule of Integration Restructuring (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 48.4	$ 4.5	$ 26.4
Clariant Color Acquisition Integration, Restructuring Plan
Restructuring Reserve [Roll Forward]
Beginning balance	8.2	31.1	36.7
Restructuring charges	1.7	2.0	8.1
Payments, utilization and translation	(7.2)	(24.9)	(13.7)
Ending balance	2.7	8.2	31.1
Other Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning balance	2.7	4.7	0.6
Restructuring charges	43.9	2.5	18.3
Payments, utilization and translation	(14.0)	(4.5)	(14.2)
Ending balance	32.6	2.7	4.7
Employee severance | Clariant Color Acquisition Integration, Restructuring Plan
Restructuring Reserve [Roll Forward]
Beginning balance	7.4	30.3	34.3
Restructuring charges	0.9	0.4	6.9
Payments, utilization and translation	(5.6)	(23.3)	(10.9)
Ending balance	2.7	7.4	30.3
Employee severance | Other Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning balance	2.7	4.7	0.6
Restructuring charges	37.2	0.6	17.0
Payments, utilization and translation	(7.3)	(2.6)	(12.9)
Ending balance	32.6	2.7	4.7
Other restructuring costs | Clariant Color Acquisition Integration, Restructuring Plan
Restructuring Reserve [Roll Forward]
Beginning balance	0.8	0.8	2.4
Restructuring charges	0.8	1.6	1.2
Payments, utilization and translation	(1.6)	(1.6)	(2.8)
Ending balance	0.0	0.8	0.8
Other restructuring costs | Other Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning balance	0.0	0.0	0.0
Restructuring charges	6.7	1.9	1.3
Payments, utilization and translation	(6.7)	(1.9)	(1.3)
Ending balance	$ 0.0	$ 0.0	$ 0.0