FAIR VALUE MEASUREMENTS (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) item	Jun. 30, 2022 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of Rabbi Trusts established | item	2
Net gains (losses) of the Rabbi Trust investments	$ 2.0	$ (6.1)
Unrealized net gains (losses) of the Rabbi Trusts' investments	$ 2.1	$ (6.3)