PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - SCHEDULE OF WEIGHTED AVERAGE ASSUMPTIONS USED IN COMPUTING BENEFIT OBLIGATIONS (Details)	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Interest crediting rate	4.70%	4.70%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.10%	4.10%
Rate of increase in compensation levels	3.60%	3.60%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.20%	4.20%