EMPLOYEE BENEFIT PLANS - NARRATIVE (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Dedicated assets in support of certain benefit plans		$ 605,000	$ 585,000
Partial termination, percentage reduction in active participants		20.00%
Health Reimbursement Account	$ 100
Market value of employer stock held by plan		$ 1,000,000	$ 1,200,000
62 Years Or Older | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	5 years
62 Years Or Older | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	5 years
Age 55 To 61 | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	10 years
Age 55 To 61 | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	10 years
Ages 65 Or Older | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	5 years
Ages 55 To 64 | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Years of service required for Health Reimbursement Account	15 years
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Special termination benefit		$ 40,000
Expected return on plan assets		5.90%	5.90%	5.51%
Special termination benefits		$ 40,000	$ 0
Other Postretirement Benefits Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Special termination benefit		$ 23,000
Expected return on plan assets		5.87%	5.86%	5.47%
Special termination benefits		$ 23,000	$ 0
Other Postretirement Benefits Plan | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Special termination benefit		$ 17,000
Expected return on plan assets		5.86%	5.88%	5.52%
Special termination benefits		$ 17,000	$ 0
Other Postretirement Benefits Plan | Sempra Texas Utilities | Oncor Electric Delivery Company LLC
Defined Benefit Plan Disclosure [Line Items]
AOCI representing actual loss related to pension plans		$ 34,000	$ 34,000
Minimum | Return Seeking Assets
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		4.00%
Minimum | Risk Mitigating Assets
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		3.00%
Maximum | Return Seeking Assets
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		12.00%
Maximum | Risk Mitigating Assets
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		6.00%