EMPLOYEE BENEFIT PLANS - EXPECTED BENEFIT PAYMENTS (Details) $ in Millions	Dec. 31, 2025 USD ($)
SI Partners \| Disposal Group Held-for-sale
Defined Benefit Plan Disclosure [Line Items]
2026	$ 2
2027	2
2028	2
2029	2
2030	3
2031-2035	20
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2026	253
2027	273
2028	246
2029	238
2030	238
2031-2035	1,280
Pension Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
2026	66
2027	65
2028	65
2029	65
2030	65
2031-2035	347
Pension Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
2026	149
2027	148
2028	147
2029	146
2030	147
2031-2035	799
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
2026	55
2027	56
2028	52
2029	52
2030	52
2031-2035	263
Other Postretirement Benefits Plan \| SDG&E
Defined Benefit Plan Disclosure [Line Items]
2026	13
2027	12
2028	12
2029	12
2030	11
2031-2035	56
Other Postretirement Benefits Plan \| SoCalGas
Defined Benefit Plan Disclosure [Line Items]
2026	39
2027	38
2028	38
2029	38
2030	39
2031-2035	$ 196

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.

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