PENSION AND NON-PENSION POST-EMPLOYMENT BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.5	$ 1.1	$ 1.5	$ 3.3
Interest cost	2.6	2.4	7.7	7.2
Expected return on plan assets	(2.5)	(2.3)	(7.5)	(6.9)
Amortization of net gain	(0.1)	(0.1)	(0.2)	(0.1)
Net periodic benefit cost	0.5	1.1	1.5	3.5
Other Benefits Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.9	0.8	2.5	2.6
Interest cost	0.8	0.8	2.3	2.2
Expected return on plan assets	(0.1)	0.0	(0.1)	0.0
Amortization of net gain	(0.5)	(0.5)	(1.5)	(1.5)
Net periodic benefit cost	$ 1.1	$ 1.1	$ 3.2	$ 3.3