SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - SEMPRA SUPPORT AGREEMENT FOR CFIN (Details) $ in Millions	1 Months Ended	12 Months Ended
	Jul. 31, 2020 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2021	Mar. 30, 2021	Jul. 01, 2020 project_owner
Cameron LNG
Schedule of Equity Method Investments [Line Items]
Number of project owners | project_owner					4
Sempra Infrastructure | ESJ | IEnova
Schedule of Equity Method Investments [Line Items]
Acquired percentage interest			50.00%
Sempra Infrastructure | ESJ | ESJ | IEnova
Schedule of Equity Method Investments [Line Items]
Ownership percentage held by noncontrolling owners				50.00%
Cameron LNG
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		50.20%
Cameron LNG | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		50.20%
Cameron LNG | Sempra Infrastructure | TAG Pipelines Norte
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		50.00%
Cameron LNG | Corporate Joint Venture | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Proceeds from related parties	$ 1,500
Debt covenant, liability cap (as a percent)		130.00%
Debt covenant, liability cap amount		$ 979
IMG JV | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		40.00%
Transportation service contract term		35 years
TAG Pipelines Norte | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		50.00%
Los Ramones Norte | Sempra Infrastructure | TAG Pipelines Norte
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee		50.00%
Variable Interest Entity, Not Primary Beneficiary | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Current guarantor obligations		$ 23
Variable Interest Entity, Not Primary Beneficiary | Sempra Infrastructure | Other Current Assets
Schedule of Equity Method Investments [Line Items]
Current guarantor obligations		7
Variable Interest Entity, Not Primary Beneficiary | Sempra Infrastructure | Other long-term assets
Schedule of Equity Method Investments [Line Items]
Current guarantor obligations		$ 16
Variable Interest Entity, Not Primary Beneficiary | Cameron LNG | Corporate Joint Venture | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Proceeds from related parties	$ 753