EMPLOYEE BENEFIT PLANS Table 9 - Assumptions - Net Periodic Benefit Cost (Income) (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Pension Plan [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 4.40% | 3.72% | 4.33% |
| Expected long-term rate of return on plan assets | 6.50% | 6.50% | 6.00% |
| Rate of compensation increase | 3.51% | 3.51% | 3.51% |
| Other Postretirement Benefit Plans [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 4.53% | 3.82% | 4.49% |