INCENTIVE PLANS (Aggregate Value of Performance Shares) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of distributed awards	$ 24.8	$ 33.4	$ 19.6
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of distributed awards	$ 11.1	$ 15.7	$ 9.0