ENVIRONMENTAL (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Environmental Remediation Obligations [Abstract]
Reserves for future environmental expenditures - total	$ 151.8	$ 148.9	$ 151.8	$ 148.9	$ 146.6
Reserves for future environmental expenditures - noncurrent	126.8	123.9	126.8	123.9	$ 121.6
Environmental Remediation Expense	$ 13.0	$ 5.0	$ 16.2	$ 10.6