PENSION, POST-RETIREMENT AND POST-EMPLOYMENT PLANS - Fair Value of Plan Assets by Asset Category (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure
Total	$ 169.2	$ 173.4
Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure
Total	95.0	90.5
Assets using net asset value (NAV) as a practical expedient
Defined Benefit Plan Disclosure
Total	74.2	82.9
Derivatives | Level 2
Defined Benefit Plan Disclosure
Total	4.6	7.7
Exchange-traded funds holding domestic securities | Level 1
Defined Benefit Plan Disclosure
Total	0.0	9.6
Foreign bonds | Level 2
Defined Benefit Plan Disclosure
Total	2.0	2.0
Mutual funds holding fixed income securities | Level 1
Defined Benefit Plan Disclosure
Total	43.2	35.2
U.S. Treasury bonds | Level 2
Defined Benefit Plan Disclosure
Total	38.3	30.8
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure
Total	$ 6.9	$ 5.2