EMPLOYEE BENEFIT PLANS - ASSUMED HEALTH CARE COST TREND RATES (Details)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.34%	5.65%	3.04%
Expected return on plan assets	5.90%	5.51%	4.77%
Interest crediting rate	4.66%	3.99%	1.94%
Other Postretirement Benefits Plan \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Rate of compensation increase	2.70%	2.70%	2.70%
Other Postretirement Benefits Plan \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%
Other Postretirement Benefits Plan \| Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.50%	6.00%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
Other Postretirement Benefits Plan \| Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	4.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
Other Postretirement Benefits Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	5.65%	3.05%
Expected return on plan assets	5.88%	5.52%	4.80%
Interest crediting rate	4.66%	3.99%	1.94%
Other Postretirement Benefits Plan \| SDG&E \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Rate of compensation increase	3.50%	3.50%	3.50%
Other Postretirement Benefits Plan \| SDG&E \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%
Other Postretirement Benefits Plan \| SDG&E \| Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.50%	6.00%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
Other Postretirement Benefits Plan \| SDG&E \| Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	4.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
Other Postretirement Benefits Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.35%	5.65%	3.05%
Expected return on plan assets	5.86%	5.47%	4.71%
Interest crediting rate	4.66%	3.99%	1.94%
Other Postretirement Benefits Plan \| SoCalGas \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Rate of compensation increase	2.70%	2.70%	2.70%
Other Postretirement Benefits Plan \| SoCalGas \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%
Other Postretirement Benefits Plan \| SoCalGas \| Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.50%	6.00%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
Other Postretirement Benefits Plan \| SoCalGas \| Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	4.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.31%	5.63%	3.04%
Expected return on plan assets	6.56%	6.48%	6.27%
Interest crediting rate	4.66%	3.99%	1.94%
Pension Plan \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Rate of compensation increase	2.70%	2.70%	2.70%
Pension Plan \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%
Pension Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	5.60%	2.99%
Expected return on plan assets	6.25%	6.00%	5.50%
Interest crediting rate	4.66%	3.99%	1.94%
Pension Plan \| SDG&E \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Rate of compensation increase	3.50%	3.50%	3.50%
Pension Plan \| SDG&E \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%
Pension Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.25%	5.60%	3.04%
Expected return on plan assets	6.75%	6.75%	6.75%
Interest crediting rate	4.66%	3.99%	1.94%
Pension Plan \| SoCalGas \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Rate of compensation increase	2.70%	2.70%	2.70%
Pension Plan \| SoCalGas \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Rate of compensation increase	10.00%	10.00%	10.00%

Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Interest Crediting Rate

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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

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost 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 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
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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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

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

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- Definition

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

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