SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Liabilities Under Self-Insurance Program) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Self-insured liabilities (undiscounted)	$ 146.7	$ 137.7
Insured liabilities (undiscounted)	$ 2.3	$ 3.6
Discount rate	4.20%	1.10%
Other accounts and notes receivables	$ 0.0	$ 0.0
Investments and long-term receivables	2.3	3.4
Other current liabilities	(51.4)	(50.7)
Other noncurrent liabilities	(81.7)	(83.2)
Net insurance liabilities (discounted)	$ (130.8)	$ (130.5)