DEBT AND CREDIT FACILITIES - ECA LNG PHASE 1 (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) bank	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 9,900
Gross long-term debt	16,590	$ 12,207
Sempra Infrastructure
Debt Instrument [Line Items]
Gross long-term debt	$ 4,682	3,649
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
Maximum borrowing capacity	$ 1,300
Gross long-term debt	$ 1,100	$ 832
Weighted average rate	7.29%	8.31%