EMPLOYEE BENEFIT PLANS - Net Periodic Benefit Cost: Weighted Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Pension Benefits
Employee benefit plans
Discount rate - employee pension plan	5.25%	5.27%
Long-term rate of return on plan assets	7.56%	7.50%
Rate of compensation increases	4.25%	4.28%
Cost of living adjustment	2.23%	2.25%
Pension Benefits | SERP
Employee benefit plans
Discount rate - employee pension plan	5.19%	5.24%
Rate of compensation increases	5.00%	5.00%
Pension Benefits | Other Benefits
Employee benefit plans
Discount rate - employee pension plan	0.00%	0.00%
Other Benefits
Employee benefit plans
Discount rate - employee pension plan	0.00%	0.00%
Long-term rate of return on plan assets	7.41%	7.36%
Rate of compensation increases	0.00%	0.00%
Cost of living adjustment	0.00%	0.00%
Other Benefits | SERP
Employee benefit plans
Discount rate - employee pension plan	0.00%	0.00%
Rate of compensation increases	0.00%	0.00%
Other Benefits | Other Benefits
Employee benefit plans
Discount rate - employee pension plan	5.25%	5.27%