COMMITMENTS AND CONTINGENCIES - LEASE INCOME STATEMENT INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 118	$ 99	$ 83
Amortization of ROU assets	65	60	48
Interest on lease liabilities	178	182	184
Total finance lease costs	243	242	232
Short-term lease costs	9	9	3
Variable lease costs	472	458	411
Total lease costs	842	808	729
Purchased-Power Agreements
Lessee, Lease, Description [Line Items]
Operating lease costs	37	21	10
Depreciation and Amortization Expense
Lessee, Lease, Description [Line Items]
Amortization of ROU assets	30	29	25
SDG&E
Lessee, Lease, Description [Line Items]
Operating lease costs	71	53	45
Amortization of ROU assets	42	40	33
Interest on lease liabilities	173	177	181
Total finance lease costs	215	217	214
Short-term lease costs	8	8	2
Variable lease costs	460	447	399
Total lease costs	754	725	660
SDG&E | Purchased-Power Agreements
Lessee, Lease, Description [Line Items]
Operating lease costs	37	21	10
SDG&E | Depreciation and Amortization Expense
Lessee, Lease, Description [Line Items]
Amortization of ROU assets	29	28	24
SoCalGas
Lessee, Lease, Description [Line Items]
Operating lease costs	12	13	18
Amortization of ROU assets	23	20	15
Interest on lease liabilities	6	5	2
Total finance lease costs	29	25	17
Short-term lease costs	0	0	0
Variable lease costs	10	10	11
Total lease costs	51	48	46
SoCalGas | Depreciation and Amortization Expense
Lessee, Lease, Description [Line Items]
Amortization of ROU assets	$ 1	$ 1	$ 1