EMPLOYEE BENEFIT PLANS (Pre-tax Amounts in AOCI Not Yet Recognized as Components of Net Periodic Costs) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	$ (0.5)	$ (0.5)
Net actuarial (loss) gain	(14.8)	12.7
Total	(15.3)	12.2
Post-Retirement Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	(3.5)	(4.3)
Net actuarial (loss) gain	11.4	7.8
Total	$ 7.9	$ 3.5