EMPLOYEE BENEFIT PLANS - WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION (Details)	Dec. 31, 2023	Dec. 31, 2022
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.31%	5.63%
Interest crediting rate	4.66%	3.99%
Pension Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	5.60%
Interest crediting rate	4.66%	3.99%
Pension Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.25%	5.60%
Interest crediting rate	4.66%	3.99%
Pension Plan \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Pension Plan \| Minimum \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Pension Plan \| Minimum \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Pension Plan \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Pension Plan \| Maximum \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Pension Plan \| Maximum \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.34%	5.65%
Interest crediting rate	4.66%	3.99%
Other Postretirement Benefits Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	5.65%
Interest crediting rate	4.66%	3.99%
Other Postretirement Benefits Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.35%	5.65%
Interest crediting rate	4.66%	3.99%
Other Postretirement Benefits Plan \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Other Postretirement Benefits Plan \| Minimum \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Other Postretirement Benefits Plan \| Minimum \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Other Postretirement Benefits Plan \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan \| Maximum \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan \| Maximum \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%

Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Interest Crediting Rate

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

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

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- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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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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