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EMPLOYEE BENEFIT PLANS Table 10 - Assumptions - Health Care Cost Trend Rates (Details) - Other Postretirement Benefit Plans [Member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.84%	6.84%
Rate to which the cost trend rate was assumed to decrease (the ultimate trend rate)	5.00%	5.00%
Year that the rate reaches the ultimate trend rate	2028	2028
Effect of one percentage point increase, description	The cap on the increase in employer’s cost is 2.5% per year. The assumed increase in total health care cost exceeds the 2.5% indexed cap, so increasing or decreasing the health care cost trend rate by 1% does not materially change our obligation or expense for the postretirement health care plan.

X

- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

+ References

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-Publisher FASB
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-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Year ultimate health care cost trend rate is expected to be reached, in CCYY format.

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