EMPLOYEE BENEFIT PLANS (Pre-tax Amounts in AOCI Not Yet Recognized as Components of Net Periodic Costs) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	$ (0.5)	$ (0.6)
Net actuarial gain (loss)	12.7	(8.4)
Total	12.2	(9.0)
Post Retirement Medical Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	(4.3)	(5.0)
Net actuarial gain (loss)	7.8	3.9
Total	$ 3.5	$ (1.1)