PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Pension
Pension and Other Postretirement Benefit Plans [Line Items]
Employer contributions	$ 19,100,000	$ 25,000,000
Expected future employer contributions	0
Other Postretirement
Pension and Other Postretirement Benefit Plans [Line Items]
Employer contributions	0	$ 0
Expected future employer contributions	$ 0