COMMITMENTS AND CONTINGENCIES - LEASES THAT HAVE NOT YET COMMENCED (Details) - SDG&E $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) agreement
Lessee, Lease, Description [Line Items]
Lease not yet commenced, year one	$ 30
Lease not yet commenced, year two	59
Lease not yet commenced, year three	80
Lease not yet commenced, year four	82
Lease not yet commenced, year five	81
Lease not yet commenced, due thereafter	$ 828
Purchased-Power Agreements
Lessee, Lease, Description [Line Items]
Lessee, number of purchased-power contracts | agreement	6