DEBT AND CREDIT FACILITIES - Other Sempra (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2025	Apr. 08, 2026	Dec. 31, 2025
Line of Credit Facility [Line Items]
Issuances of debt (maturities greater than 90 days)		$ 3,345	$ 2,941
Total facility	$ 10,200	10,200
5.25% Note Due March 2036 | Unsecured Debt
Line of Credit Facility [Line Items]
Debt amount	$ 800	$ 800
Debt instrument, interest rate	5.25%	5.25%
Issuances of debt (maturities greater than 90 days)	$ 791
Unamortized debt issuance costs	9	$ 9
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | ECA LNG Phase 1
Line of Credit Facility [Line Items]
Total facility	$ 1,500	$ 1,500
Effective interest rate	2.29%	2.29%
Debt instrument, basis spread on variable rate, minimum	0.10%	0.10%
Debt outstanding	$ 1,300	$ 1,300			$ 1,300
Weighted average interest rate (as a percent)	6.09%	6.09%			6.06%
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | IEnova
Line of Credit Facility [Line Items]
Maximum exposure under guarantor obligations	$ 1,226	$ 1,226
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | TotalEnergies SE
Line of Credit Facility [Line Items]
Maximum exposure under guarantor obligations	305	305
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Port Arthur LNG
Line of Credit Facility [Line Items]
Debt outstanding	$ 3,800	$ 3,800			$ 3,200
Weighted average interest rate (as a percent)	5.60%	5.60%			5.47%
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Port Arthur LNG | Domestic Line of Credit
Line of Credit Facility [Line Items]
Total facility	$ 6,800	$ 6,800
Term of debt instrument (in years)		7 years
Borrowings repaid		$ 983
6.43% Senior Secured Notes Due June 2048 | Port Arthur LNG | Secured Debt | Subsequent Event
Line of Credit Facility [Line Items]
Debt amount				$ 2,000
Debt instrument, interest rate				6.43%