RETIREMENT PLANS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Other Postretirement Benefits Plan
Defined Contribution Plan Disclosure [Line Items]
Contributions	$ 2.5	$ 5.1
Expected contributions	18.7		$ 15.5
Pension Plan
Defined Contribution Plan Disclosure [Line Items]
Contributions	$ 13.2	$ 7.3