INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARY OF INVESTMENTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Equity method investment	$ 13,665	$ 12,947
Other investments	2,012	1,525
Goodwill	1,602	1,602
Earnings (losses) recorded before income tax	666	614	$ 294
Earnings recorded net of income tax	832	729	721
Total equity earnings	1,498	1,343	1,015
Distributions from investments	886	1,360	1,462
Undistributed earnings from equity method investments	2,000	1,500
Undistributed earnings, equity method investments, less than 50 percent owned	$ 386
Sharyland Holdings, LP
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%
R B S Sempra Commodities
Schedule of Equity Method Investments [Line Items]
Total equity earnings		50	(100)
Other Equity Method Investments And Other Investments [Member]
Schedule of Equity Method Investments [Line Items]
Other investments	$ 2,012	1,525
Sempra Texas Utilities
Schedule of Equity Method Investments [Line Items]
Distributions from investments	$ 345	$ 688	286
Sempra Texas Utilities | Oncor Holdings
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	100.00%	100.00%
Equity method investment	$ 13,665	$ 12,947
Difference between carrying amount of equity method investment and underlying equity	2,856	2,844
Goodwill	2,868	2,868
Equity method investment, difference between carrying amount and underlying equity, aoci	69	69
Difference between carrying amount and underlying equity, tax sharing liability	81	93
Earnings recorded net of income tax	$ 735	$ 617	577
Sempra Texas Utilities | Sharyland Holdings, LP
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%	50.00%
Equity method investment	$ 107	$ 100
Difference between carrying amount of equity method investment and underlying equity	41
Earnings (losses) recorded before income tax	7	5	3
Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Distributions from investments	$ 541	$ 672	1,176
Sempra Infrastructure | Cameron LNG JV
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.20%	50.20%
Other investments	$ 886	$ 514
Difference between carrying amount of equity method investment and underlying equity	270	276
Earnings (losses) recorded before income tax	659	559	391
Basis difference in equity earnings related to AOCI	12	3
Sempra Infrastructure | ESJ JV
Schedule of Equity Method Investments [Line Items]
Earnings recorded net of income tax	$ 0	$ 2	5
Sempra Infrastructure | IMG JV
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	40.00%	40.00%
Other investments	$ 591	$ 523
Difference between carrying amount of equity method investment and underlying equity	5
Earnings recorded net of income tax	$ 68	$ 83	103
Sempra Infrastructure | TAG JV
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	50.00%	50.00%
Other investments	$ 428	$ 388
Difference between carrying amount of equity method investment and underlying equity	130
Earnings recorded net of income tax	29	27	36
Parent and other | R B S Sempra Commodities
Schedule of Equity Method Investments [Line Items]
Earnings (losses) recorded before income tax	$ 0	$ 50	$ (100)