EMPLOYEE BENEFITS - Schedule of Actuarial Assumptions (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Compensation/Progression Rate		4.00%
Pension Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.04%	4.22%
Compensation/Progression Rate	3.50%	3.50%
Pension Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.35%	4.45%
Compensation/Progression Rate	4.00%	4.00%
Other Postretirement Benefits Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.26%	4.38%
Other Postretirement Benefits Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.28%	4.41%
Pre-65 Plan | Other Postretirement Benefits Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Health care trend rate	3.50%
Pre-65 Plan | Other Postretirement Benefits Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Health care trend rate	6.50%
Post-65 Plan | Other Postretirement Benefits Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Health care trend rate	3.50%
Post-65 Plan | Other Postretirement Benefits Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Health care trend rate	5.00%