Target allocation percentages, or range of percentages, considering the major categories of plan assets as of the latest statement of financial position presented (on a weighted-average basis for employers with more than one plan) that are pertinent to an understanding of the plan investment policies and strategies.

No definition available.

+ Details

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2919-114920

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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.

+ References

No definition available.

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- Definition

Percentage of plan assets to benefit obligation of defined benefit plan.

+ References

No definition available.

+ Details

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PENSION AND OTHER POSTRETIREMENT PLANS (Schedule of Allocation of Plan Assets) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Equity Securities
Defined Benefit Plan Disclosure
Target Allocation	60.00%
Weighted Average Expected Long-Term Rate of Return	8.85%
Debt Securities
Defined Benefit Plan Disclosure
Target Allocation	40.00%
Weighted Average Expected Long-Term Rate of Return	3.00%
Pension Benefits
Defined Benefit Plan Disclosure
Percentage of Plan Assets	100.00%	100.00%
Weighted Average Expected Long-Term Rate of Return	6.50%	6.50%	6.50%
Pension Benefits \| Equity Securities
Defined Benefit Plan Disclosure
Percentage of Plan Assets	65.00%	61.00%
Weighted Average Expected Long-Term Rate of Return	8.85%
Pension Benefits \| Equity Securities \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	55.00%
Pension Benefits \| Equity Securities \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	65.00%
Pension Benefits \| Debt Securities
Defined Benefit Plan Disclosure
Percentage of Plan Assets	31.00%	36.00%
Weighted Average Expected Long-Term Rate of Return	3.00%
Pension Benefits \| Debt Securities \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	35.00%
Pension Benefits \| Debt Securities \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	45.00%
Pension Benefits \| Other Debt Obligations [Member]
Defined Benefit Plan Disclosure
Percentage of Plan Assets	4.00%	3.00%
Weighted Average Expected Long-Term Rate of Return	0.10%
Pension Benefits \| Other Debt Obligations [Member] \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	5.00%
Pension Benefits \| Other Debt Obligations [Member] \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	10.00%
SERP Benefits
Defined Benefit Plan Disclosure
Percentage of Plan Assets	100.00%	100.00%
Weighted Average Expected Long-Term Rate of Return	6.50%	6.50%	6.50%
SERP Benefits \| Equity Securities
Defined Benefit Plan Disclosure
Percentage of Plan Assets	64.00%	65.00%
Weighted Average Expected Long-Term Rate of Return	8.85%
SERP Benefits \| Equity Securities \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	55.00%
SERP Benefits \| Equity Securities \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	65.00%
SERP Benefits \| Debt Securities
Defined Benefit Plan Disclosure
Percentage of Plan Assets	34.00%	34.00%
Weighted Average Expected Long-Term Rate of Return	3.00%
SERP Benefits \| Debt Securities \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	35.00%
SERP Benefits \| Debt Securities \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	45.00%
SERP Benefits \| Other Debt Obligations [Member]
Defined Benefit Plan Disclosure
Percentage of Plan Assets	2.00%	1.00%
Weighted Average Expected Long-Term Rate of Return	0.10%
SERP Benefits \| Other Debt Obligations [Member] \| Minimum
Defined Benefit Plan Disclosure
Target Allocation	5.00%
SERP Benefits \| Other Debt Obligations [Member] \| Maximum
Defined Benefit Plan Disclosure
Target Allocation	10.00%