EMPLOYEE BENEFIT PLANS (Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rate of Compensation Increase	3.00%	3.00%	3.00%
Expected Return on Plan Assets	7.00%	7.00%	7.00%
Pension Plan [Member] | Service cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	4.80%	4.20%	5.10%
Pension Plan [Member] | Interest Cost Member [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.90%	4.20%	5.10%
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected Return on Plan Assets	7.00%	7.00%	7.00%
Other Postretirement Benefits [Member] | Service cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	4.60%	3.90%	4.70%
Other Postretirement Benefits [Member] | Interest Cost Member [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.40%	3.90%	4.70%