SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - SEMPRA INFRASTRUCTURE (Details) $ in Millions	12 Months Ended
Dec. 31, 2025 USD ($) partner	Dec. 31, 2024 USD ($)
Disposal Group Held-for-sale \| SI Partners
Schedule of Equity Method Investments [Line Items]
Equity method investments held for sale	$ 2,566
Sempra Infrastructure \| Cameron LNG
Schedule of Equity Method Investments [Line Items]
Number of joint venture partners \| partner	3
Ownership percentage in equity method investee	50.20%
Sempra Infrastructure \| IMG JV
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	40.00%
Transportation service contract term	35 years
Sempra Infrastructure \| IMG JV \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	40.00%	40.00%
Sempra Infrastructure \| IMG JV \| Disposal Group Held-for-sale \| SI Partners \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Equity method investments held for sale	$ 766
Sempra Infrastructure \| TAG Pipelines Norte
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%
Sempra Infrastructure \| TAG Pipelines Norte \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%	50.00%
Sempra Infrastructure \| TAG Pipelines Norte \| Disposal Group Held-for-sale \| SI Partners \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Equity method investments held for sale	$ 558
Sempra Infrastructure \| Los Ramones Norte \| TAG Pipelines Norte
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%
Sempra Infrastructure \| Cameron LNG JV \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.20%	50.20%
Guaranty liability	$ 17	$ 18
Sempra Infrastructure \| Cameron LNG JV \| Disposal Group Held-for-sale \| SI Partners
Schedule of Equity Method Investments [Line Items]
Equity method investments held for sale	1,242
Sempra Infrastructure \| Cameron LNG JV \| Disposal Group Held-for-sale \| SI Partners \| Operating Segments
Schedule of Equity Method Investments [Line Items]
Equity method investments held for sale	$ 1,242

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