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EMPLOYEE BENEFIT PLANS - OBLIGATIONS OF FUNDED AND UNFUNDED PENSION AND PBOP PLANS (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Pension Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Accumulated benefit obligation | $ 2,900 | $ 2,865
Pension Plan | SDG&E |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Accumulated benefit obligation | 781 | 769
Pension Plan | SoCalGas |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Accumulated benefit obligation | 1,824 | 1,799
Funded Plan | Pension Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 2,752 | 2,925
Accumulated benefit obligation | 2,542 | 2,712
Fair value of plan assets | 2,724 | 2,664
Funded Plan | Pension Plan | SDG&E |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 793 | 781
Accumulated benefit obligation | 755 | 746
Fair value of plan assets | 787 | 726
Funded Plan | Pension Plan | SoCalGas |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 1,959 | 1,944
Accumulated benefit obligation | 1,787 | 1,771
Fair value of plan assets | 1,937 | 1,744
Unfunded Plan | Pension Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 183 | 182
Accumulated benefit obligation | 159 | 153
Unfunded Plan | Pension Plan | SDG&E |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 29 | 26
Accumulated benefit obligation | 26 | 23
Unfunded Plan | Pension Plan | SoCalGas |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 40 | 33
Accumulated benefit obligation | 37 | 28
Unfunded Plan | Other Postretirement Benefits Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Accumulated benefit obligation | $ 9 | $ 9

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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