REGULATORY MATTERS - CPUC GRC (Details) - USD ($) $ in Millions	1 Months Ended				3 Months Ended	12 Months Ended
	Jan. 31, 2026	Apr. 30, 2025	Dec. 31, 2024	Oct. 31, 2023	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					$ 651	$ 651	$ 0	$ 0
Regulatory disallowances, after tax					464
Regulatory Disallowances Period, 2019 Through 2024
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					605
Regulatory disallowances, after tax					432
Regulatory Disallowances Period, First Nine Months 2025
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					41
Regulatory disallowances, after tax					28
Regulatory Disallowances Period, Fourth Quarter 2025
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					5
Regulatory disallowances, after tax					4
SDG&E
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					651	651	0	$ 0
Regulatory disallowances, after tax					464
SDG&E | Regulatory Disallowances Period, 2019 Through 2024
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					605
Regulatory disallowances, after tax					432
SDG&E | Regulatory Disallowances Period, First Nine Months 2025
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					41
Regulatory disallowances, after tax					28
SDG&E | Regulatory Disallowances Period, Fourth Quarter 2025
Public Utilities, General Disclosures [Line Items]
Regulatory disallowances					5
Regulatory disallowances, after tax					$ 4
2024 General Rate Case | General Rate Case
Public Utilities, General Disclosures [Line Items]
Requested interim recovery rate		50.00%
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission
Public Utilities, General Disclosures [Line Items]
Approved revenue requirement			$ 2,699
Approved revenue increase from prior request			$ 189
Approved revenue increase from prior request (percent)			7.50%
Net income tax benefits			$ 68
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Subsequent Event
Public Utilities, General Disclosures [Line Items]
Approved revenue requirement	$ 707
Approved revenue requirement, decrease from requested amount	441
Requested revenue requirements	1,148
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Revenue Requirement, Period One
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 147
Approved rate increase			5.45%
Requested recovery amount						55
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Revenue Recognition, Period Two
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 119
Approved rate increase			4.17%
Requested recovery amount						87
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Revenue Recognition, Period Three
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 122
Approved rate increase			4.11%
Requested recovery amount						79
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Natural Gas Operations
Public Utilities, General Disclosures [Line Items]
Approved revenue requirement			$ 506
2024 General Rate Case | General Rate Case | SDG&E | California Public Utilities Commission | Electrical Operations
Public Utilities, General Disclosures [Line Items]
Approved revenue requirement			2,193
2024 General Rate Case | General Rate Case | SoCalGas | California Public Utilities Commission
Public Utilities, General Disclosures [Line Items]
Approved revenue requirement			3,806
Approved revenue increase from prior request			$ 324
Approved revenue increase from prior request (percent)			9.30%
Net income tax benefits			$ 202
2024 General Rate Case | General Rate Case | SoCalGas | California Public Utilities Commission | Revenue Requirement, Period One
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 190
Approved rate increase			5.00%
Requested recovery amount						86
2024 General Rate Case | General Rate Case | SoCalGas | California Public Utilities Commission | Revenue Recognition, Period Two
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 116
Approved rate increase			2.91%
Requested recovery amount						122
2024 General Rate Case | General Rate Case | SoCalGas | California Public Utilities Commission | Revenue Recognition, Period Three
Public Utilities, General Disclosures [Line Items]
Approved recovery amount			$ 120
Approved rate increase			2.92%
Requested recovery amount						109
2024 GRC - 2024 Requirement | General Rate Case | SDG&E
Public Utilities, General Disclosures [Line Items]
General rate case, requested review and recovery of wildfire mitigation plan costs		$ 417		$ 1,472
Recovery of wildlife mitigation plan costs						$ 96	$ 194
General rate case, expected recovery of wildlife mitigation plan costs		240
2024 GRC - 2024 Requirement | General Rate Case | SDG&E | Subsequent Event
Public Utilities, General Disclosures [Line Items]
General rate case, approved recovery of wildfire mitigation plan costs	1,023
General rate case, expected recovery of wildlife mitigation plan costs	417
2024 GRC - 2024 Requirement | General Rate Case | SDG&E | Other Cost And Expense, Operating | Subsequent Event
Public Utilities, General Disclosures [Line Items]
Approved recovery amount	78
2024 GRC - 2024 Requirement | General Rate Case | SDG&E | Cost Of Product And Service Sold | Subsequent Event
Public Utilities, General Disclosures [Line Items]
Approved recovery amount	$ 945
2024 GRC - 2024 Requirement | General Rate Case | SoCalGas
Public Utilities, General Disclosures [Line Items]
General rate case, expected recovery of wildlife mitigation plan costs		$ 499