COMMITMENTS, CONTINGENCIES AND GUARANTEES - SEMPRA - GUARANTEES (Details) $ in Millions	1 Months Ended			9 Months Ended
	Feb. 28, 2025	Jun. 30, 2021 USD ($)	Jul. 31, 2020 USD ($) projectOwner	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)
Loss Contingencies [Line Items]
Distributions from investments				$ 828	$ 654
Cameron LNG JV
Loss Contingencies [Line Items]
Number of project owners | projectOwner			4
SI Partners
Loss Contingencies [Line Items]
Guarantees, carrying value				300
Maximum exposure under guarantor obligations				$ 72
Sempra Infrastructure | Cameron LNG JV
Loss Contingencies [Line Items]
Ownership percentage in consolidated entity (in percentage)				50.20%
Sempra Infrastructure | Variable Interest Entity, Not Primary Beneficiary
Loss Contingencies [Line Items]
Guarantees, carrying value				$ 39
Maximum exposure under guarantor obligations				979
Sempra Infrastructure | Other current assets | Variable Interest Entity, Not Primary Beneficiary
Loss Contingencies [Line Items]
Guarantees, carrying value				8
Sempra Infrastructure | Other long-term assets | Variable Interest Entity, Not Primary Beneficiary
Loss Contingencies [Line Items]
Guarantees, carrying value				31
Related Party | Third-Pary
Loss Contingencies [Line Items]
Credit support agreement, term	15 months
Cameron LNG JV | Sempra Infrastructure
Loss Contingencies [Line Items]
Distributions from investments				$ 369	$ 353
Cameron LNG JV | Corporate Joint Venture | Sempra Infrastructure
Loss Contingencies [Line Items]
Proceeds from related party debt			$ 1,500
Number of project owners sending direct proceeds | projectOwner			2
Number of project owners sending proceeds from external lenders | projectOwner			2
Liability cap (as a percent)				130.00%
Cameron LNG JV | Corporate Joint Venture | Sempra Infrastructure | Variable Interest Entity, Not Primary Beneficiary
Loss Contingencies [Line Items]
Proceeds from related party debt			$ 753
Cameron LNG JV | Promissory Note for SDSRA Distribution | Corporate Joint Venture | Sempra Infrastructure
Loss Contingencies [Line Items]
Distributions from investments		$ 165
Maximum exposure under guarantor obligations		165
Cameron LNG JV | Promissory Note for SDSRA Distribution | Corporate Joint Venture | Sempra Infrastructure | Deferred Credits and Other
Loss Contingencies [Line Items]
Guarantees, carrying value		$ 22		$ 17