EMPLOYEE BENEFIT PLANS (Percentage of Pension Plan Assets By Asset Category) (Details)	Dec. 31, 2016	Dec. 31, 2015
Pension Plan [Member]
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	100.00%	100.00%
Pension Plan [Member] | Equity Securities
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	49.00%	49.00%
Pension Plan [Member] | Fixed Income
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	41.00%	41.00%
Pension Plan [Member] | Real Estate
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	8.00%	8.00%
Pension Plan [Member] | Other
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	2.00%	2.00%
Other Postretirement Benefits [Member]
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	100.00%	100.00%
Other Postretirement Benefits [Member] | Equity Securities
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	60.00%	60.00%
Other Postretirement Benefits [Member] | Fixed Income
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	35.00%	35.00%
Other Postretirement Benefits [Member] | Real Estate
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	2.00%	2.00%
Other Postretirement Benefits [Member] | Other
Pension And Other Employee Benefit Plans [Line Items]
Pension plan assets allocation	3.00%	3.00%