COMMITMENTS, CONTINGENCIES AND GUARANTEES - CONTRACTUAL COMMITMENTS & ENVIRONMENTAL ISSUES (Details) - Sempra Infrastructure $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Natural Gas Contracts
Loss Contingencies [Line Items]
Transportation agreement, term	20 years
Yearly unrecorded unconditional purchase obligation	$ 180
Liquefied Natural Gas Contracts
Loss Contingencies [Line Items]
Decrease in in unrecorded unconditional purchase obligation, remainder of fiscal year	321
Decrease in unrecorded unconditional purchase obligation, year one	74
Decrease in unrecorded unconditional purchase obligation, year two	53
Decrease in unrecorded unconditional purchase obligation, year three	64
Decrease in unrecorded unconditional purchase obligation, year four	$ 38