EMPLOYEE BENEFIT PLANS (Schedule of Estimated Benefits Expected to Be Paid) (Details) $ in Millions	Dec. 31, 2023 USD ($)
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2024	$ 957
2025	1,040
2026	1,066
2027	1,089
2028	1,111
Thereafter in the succeeding five years	5,802
PBOP Plans
Defined Benefit Plan Disclosure [Line Items]
2024	93
2025	93
2026	96
2027	87
2028	89
Thereafter in the succeeding five years	471
Federal Subsidy
Defined Benefit Plan Disclosure [Line Items]
2024	(4)
2025	(1)
2026	(1)
2027	(1)
2028	(1)
Thereafter in the succeeding five years	$ (4)

Defined Benefit Plan, Expected Future Benefit, Five Fiscal Years Thereafter

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Defined Benefit Plan, Expected Future Receipt, Year Five

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Defined Benefit Plan, Expected Future Receipt, Year Four

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Defined Benefit Plan, Expected Future Receipt, Year One

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Defined Benefit Plan, Expected Future Receipt, Year Three

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Defined Benefit Plan, Expected Future Receipt, Year Two

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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