SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - NONCONTROLLING INTERESTS (Details) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Billions				1 Months Ended						3 Months Ended	12 Months Ended
	Jun. 01, 2022 USD ($)	Oct. 01, 2021 USD ($)	Mar. 30, 2020 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2021 MXN ($) $ / shares shares	Jul. 31, 2021 USD ($)	May 31, 2021 USD ($) shares	Dec. 31, 2020	Mar. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Feb. 21, 2023 shares	Dec. 21, 2021 USD ($)	Oct. 15, 2021 $ / shares	Aug. 31, 2021	Apr. 30, 2021
Noncontrolling Interest [Line Items]
Increase in the noncontrolling interest balance from the sale of noncontrolling interest											$ 1,419	$ 2,712	$ 28
Stock repurchased in the period											478	339	566
Income tax expense (benefit)											556	99	249
Equitization of long-term debt for deficit held by NCI													(22)
Decrease in equity held by NCI												(1)	236
Proceeds from sales of noncontrolling interests, net											$ 1,732	$ 3,206	$ 26
Shares issued in IEnova exchange offer | shares								12,306,777			0	12,306,777	0
IEnova
Noncontrolling Interest [Line Items]
Common stock exchange ratio								0.0323
Increase in shareholders' equity					$ 72
Common stock acquired (in shares) | shares					51,014,545	51,014,545		381,015,194
Common stock acquired					$ 202	$ 4.0
Share price (in dollars per share) | (per share)					$ 3.95	$ 78.97
Sempra Infrastructure | IEnova
Noncontrolling Interest [Line Items]
Stock repurchased in the period			$ 22							$ 9			$ 231
Stock repurchased during the period (in shares) | shares													77,122,780
IEnova | KKR
Noncontrolling Interest [Line Items]
Noncontrolling interest, percent of funding	20.00%
IEnova | Abu Dhabi Investment Authority
Noncontrolling Interest [Line Items]
Noncontrolling interest, percent of funding	10.00%
IEnova | SI Partners
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	99.90%
IEnova | Sempra LNG
Noncontrolling Interest [Line Items]
Ownership percentage sold									16.60%
IEnova | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership interest (as a percent)									66.60%			70.20%	66.60%
ICM Ventures Holdings B.V. | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners							17.50%
Ownership interest (as a percent)									53.70%	82.50%			53.70%
Payments to acquire minority interest							$ 7
Liberty Gas Storage | Sempra LNG
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners			24.60%
IEnova
Noncontrolling Interest [Line Items]
Ownership interest (as a percent)								96.40%			99.90%						96.40%	70.20%
Increase in shareholders' equity					$ 17			$ 1,400
Share price (in pesos per share) | $ / shares																$ 78.97
Decrease in equity held by NCI					188			1,400
Purchase of noncontrolling interest, transaction costs					$ 4			$ 12
Noncontrolling interest, remaining shares of noncontrolling interest | shares											1,212,981
IEnova | Subsequent Event
Noncontrolling Interest [Line Items]
Noncontrolling interest, remaining shares of noncontrolling interest | shares														890,170
IEnova | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership interest (as a percent)											99.90%
SI Partners
Noncontrolling Interest [Line Items]
Distribution requirement (as a percent)		85.00%
SI Partners | Abu Dhabi Investment Authority
Noncontrolling Interest [Line Items]
Sale of noncontrolling interest, purchase price															$ 1,700
Sale of noncontrolling interest (as a percent)															10.00%
SI Partners | KKR
Noncontrolling Interest [Line Items]
Sale of noncontrolling interest (as a percent)				20.00%
Income tax expense (benefit)				$ 72
SI Partners | Sempra Energy
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners															70.00%
SI Partners | KKR
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners															20.00%
SI Partners | Abu Dhabi Investment Authority
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners															10.00%
SI Partners | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners		20.00%									30.00%	20.00%
Sale of noncontrolling interest, purchase price		$ 3,400
Increase in the noncontrolling interest balance from the sale of noncontrolling interest	$ 709	1,300
Sale of noncontrolling interest, change in equity	710	1,400
Sale of noncontrolling interest, transaction costs	12	173
Sale of noncontrolling interest, deferred income tax liability	300	490
Sale of noncontrolling interest, transaction costs reimbursed	$ 10	$ 149
Ownership interest (as a percent)											70.00%
Liberty Gas Storage, LLC | Sempra LNG
Noncontrolling Interest [Line Items]
Payments to acquire minority interest			$ 7
Increase from equity of noncontrolling interest			$ 2
Liberty Gas Storage, LLC | Liberty Gas Storage | Sempra LNG
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners									100.00%				100.00%