INCOME TAXES - DEFERRED INCOME TAXES (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred income tax liabilities:
Differences in financial and tax bases of utility plant and other assets	$ 6,875	$ 5,533
U.S. state and non-U.S. withholding tax on repatriation of foreign earnings	55	53
Regulatory balancing accounts	727	632
Right-of-use assets – operating leases	211	177
Property taxes	68	60
Postretirement benefits	47	31
Other deferred income tax liabilities	68	55
Total deferred income tax liabilities	8,051	6,541
Deferred income tax assets:
Tax credits	1,468	1,210
Net operating losses	982	579
Compensation-related items	157	144
Operating lease liabilities	179	164
Other deferred income tax assets	96	40
Bad debt allowance	144	48
Accrued expenses not yet deductible	89	92
Deferred income tax assets before valuation allowances	3,115	2,277
Less: valuation allowances	189	192
Total deferred income tax assets	2,926	2,085
Net deferred income tax liability	5,125	4,456
Deferred income taxes assets, noncurrent	129	135
Deferred income tax liabilities, noncurrent	5,254	4,591
SDG&E
Deferred income tax liabilities:
Differences in financial and tax bases of utility plant and other assets	2,641	2,157
Regulatory balancing accounts	418	397
Right-of-use assets – operating leases	103	79
Property taxes	43	38
Postretirement benefits	0	0
Other deferred income tax liabilities	0	0
Total deferred income tax liabilities	3,205	2,671
Deferred income tax assets:
Tax credits	7	5
Net operating losses	146	0
Compensation-related items	9	9
Operating lease liabilities	103	79
Other deferred income tax assets	19	9
Bad debt allowance	37	19
Accrued expenses not yet deductible	11	10
Total deferred income tax assets	332	131
Net deferred income tax liability	2,873	2,540
Deferred income tax liabilities, noncurrent	2,873	2,540
SoCalGas
Deferred income tax liabilities:
Differences in financial and tax bases of utility plant and other assets	2,272	1,568
Regulatory balancing accounts	309	236
Right-of-use assets – operating leases	8	12
Property taxes	25	21
Postretirement benefits	71	45
Other deferred income tax liabilities	4	0
Total deferred income tax liabilities	2,689	1,882
Deferred income tax assets:
Tax credits	7	2
Net operating losses	890	441
Compensation-related items	31	27
Operating lease liabilities	8	12
Other deferred income tax assets	25	12
Bad debt allowance	86	23
Accrued expenses not yet deductible	56	59
Total deferred income tax assets	1,103	576
Net deferred income tax liability	1,586	1,306
Deferred income tax liabilities, noncurrent	$ 1,586	$ 1,306