SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - RBS SEMPRA COMMODITIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Equity earnings	$ 633	$ 666	$ 614
RBS Sempra Commodities
Schedule of Equity Method Investments [Line Items]
Equity earnings	$ 40		$ 50	$ (100)