DEBT AND CREDIT FACILITIES - ECA LNG PHASE 1 (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) bank	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Total facility	$ 9,900
Gross long-term debt	12,207	$ 10,654
Sempra Infrastructure
Debt Instrument [Line Items]
Gross long-term debt	$ 3,649	3,346
IEnova | ECA LNG JV
Debt Instrument [Line Items]
Ownership percentage in consolidated entity	83.40%
Subsidiary of TOTAL SE | ECA LNG JV
Debt Instrument [Line Items]
Ownership percentage in consolidated entity	16.60%
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | Sempra Infrastructure
Debt Instrument [Line Items]
Term of contract (in years)	5 years
Number of banks in syndicate | bank	7
Total facility	$ 1,300
Gross long-term debt	$ 832	$ 575
Weighted average rate	8.31%	7.54%