INCOME TAXES - DEFERRED INCOME TAXES (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred income tax assets:
Less: valuation allowances	$ 192	$ 183
Deferred income taxes assets, noncurrent	135	151
Deferred income tax liabilities, noncurrent	4,591	3,477
Sempra
Deferred income tax liabilities:
Differences in financial and tax bases of fixed assets, investments and other assets	5,533	5,230
U.S. state and non-U.S. withholding tax on repatriation of foreign earnings	53	47
Regulatory balancing accounts	632	538
Right-of-use assets – operating leases	177	160
Property taxes	60	52
Postretirement benefits	31	0
Other deferred income tax liabilities	55	50
Total deferred income tax liabilities	6,541	6,077
Deferred income tax assets:
Tax credits	1,210	1,135
Postretirement benefits	0	30
Compensation-related items	144	164
Operating lease liabilities	164	140
Bad debt allowance	48	33
State income taxes	0	21
Accrued expenses not yet deductible	92	575
Net operating losses	579	706
Other deferred income tax assets	40	130
Deferred income tax assets before valuation allowances	2,277	2,934
Less: valuation allowances	192	183
Total deferred income tax assets	2,085	2,751
Net deferred income tax liability	4,456	3,326
Deferred income taxes assets, noncurrent	135	151
Deferred income tax liabilities, noncurrent	4,591	3,477
San Diego Gas and Electric Company
Deferred income tax liabilities:
Differences in financial and tax bases of fixed assets, investments and other assets	2,157	1,970
Regulatory balancing accounts	397	323
Right-of-use assets – operating leases	79	52
Property taxes	38	35
Postretirement benefits	0	0
Other deferred income tax liabilities	0	1
Total deferred income tax liabilities	2,671	2,381
Deferred income tax assets:
Tax credits	5	5
Postretirement benefits	0	0
Compensation-related items	9	12
Operating lease liabilities	79	52
Bad debt allowance	19	16
State income taxes	5	4
Accrued expenses not yet deductible	10	16
Net operating losses	0	0
Other deferred income tax assets	4	1
Total deferred income tax assets	131	106
Net deferred income tax liability	2,540	2,275
Deferred income tax liabilities, noncurrent	2,540	2,275
SoCalGas
Deferred income tax liabilities:
Differences in financial and tax bases of fixed assets, investments and other assets	1,568	1,444
Regulatory balancing accounts	236	215
Right-of-use assets – operating leases	12	16
Property taxes	21	17
Postretirement benefits	45	0
Other deferred income tax liabilities	0	1
Total deferred income tax liabilities	1,882	1,693
Deferred income tax assets:
Tax credits	2	3
Postretirement benefits	0	18
Compensation-related items	27	33
Operating lease liabilities	12	16
Bad debt allowance	23	15
State income taxes	0	12
Accrued expenses not yet deductible	59	539
Net operating losses	441	0
Other deferred income tax assets	12	18
Total deferred income tax assets	576	654
Net deferred income tax liability	1,306	1,039
Deferred income tax liabilities, noncurrent	$ 1,306	$ 1,039