COMMITMENTS AND CONTINGENCIES - LEASES CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Cash paid for operating leases	$ 112	$ 85	$ 88
Cash paid for finance leases	163	167	169
Cash paid for finance leases	66	60	48
Increase in operating lease obligations for ROU assets	520	143	142
Increase in finance lease obligations capitalized to PP&E	41	57	57
SDG&E
Lessee, Lease, Description [Line Items]
Cash paid for operating leases	70	46	45
Cash paid for finance leases	158	162	166
Cash paid for finance leases	42	40	33
Increase in operating lease obligations for ROU assets	474	134	134
Increase in finance lease obligations capitalized to PP&E	14	17	16
SoCalGas
Lessee, Lease, Description [Line Items]
Cash paid for operating leases	12	13	18
Cash paid for finance leases	6	5	2
Cash paid for finance leases	24	20	15
Increase in operating lease obligations for ROU assets	0	0	1
Increase in finance lease obligations capitalized to PP&E	$ 27	$ 40	$ 41