EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS - Awarded Shares of Restricted Stock Under Stock Incentive Plan (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Restricted Stock | Independent Directors Stock Incentive Plan | Director [Member]
STOCK-BASED COMPENSATION PLANS
Shares awarded (in shares)	9,588	10,989
Restricted Stock | Stock Incentive Plan
STOCK-BASED COMPENSATION PLANS
Shares awarded (in shares)	78,243	78,391
Restricted Stock | Stock Incentive Plan | Employees
STOCK-BASED COMPENSATION PLANS
Shares awarded (in shares)	51,638	50,178
Performance Shares | Stock Incentive Plan | Employees
STOCK-BASED COMPENSATION PLANS
Shares awarded (in shares)	17,017	17,224