INCOME TAXES - RECONCILIATION TO EFFECTIVE TAX RATE (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Line Items]
Income tax expense (benefit)	$ 556	$ 99	$ 249
Income from continuing operations before income taxes and equity earnings	1,343	219	1,489
Income (loss) from equity method investments	666	614	294
Pretax income	$ 2,009	$ 833	$ 1,783
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
Foreign exchange and inflation effects	9.00%	1.00%	(3.00%)
Outside basis differences	6.00%	9.00%	0.00%
Depreciation	4.00%	8.00%	3.00%
Non-U.S. earnings taxed at lower statutory income tax rates	3.00%	5.00%	2.00%
State income taxes, net of federal income tax benefit	1.00%	(4.00%)	1.00%
Compensation-related items	0.00%	(1.00%)	(1.00%)
Impairment losses	0.00%	(1.00%)	1.00%
Noncontrolling interests	0.00%	(2.00%)	0.00%
Self-developed software expenditures	0.00%	(5.00%)	(3.00%)
Allowance for equity funds used during construction	(1.00%)	(3.00%)	(1.00%)
Tax credits	(1.00%)	0.00%	(1.00%)
Amortization of excess deferred income taxes	(2.00%)	(3.00%)	(1.00%)
Resolution of prior years’ income tax items	(2.00%)	0.00%	0.00%
Valuation allowances	(2.00%)	1.00%	(1.00%)
Remeasurement of deferred taxes	(3.00%)	(4.00%)	0.00%
Utility repairs expenditures	(5.00%)	(9.00%)	(4.00%)
Other, net	0.00%	(1.00%)	1.00%
Effective income tax rate	28.00%	12.00%	14.00%
San Diego Gas and Electric Company
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Line Items]
Income tax expense (benefit)	$ 182	$ 201	$ 190
Income from continuing operations before income taxes and equity earnings	1,097	1,020	1,014
Pretax income	$ 1,097	$ 1,020	$ 1,014
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
Depreciation	3.00%	3.00%	3.00%
State income taxes, net of federal income tax benefit	4.00%	5.00%	5.00%
Self-developed software expenditures	0.00%	(1.00%)	(4.00%)
Allowance for equity funds used during construction	(2.00%)	(2.00%)	(2.00%)
Amortization of excess deferred income taxes	(2.00%)	(2.00%)	(1.00%)
Resolution of prior years’ income tax items	(2.00%)	0.00%	0.00%
Utility repairs expenditures	(5.00%)	(4.00%)	(3.00%)
Effective income tax rate	17.00%	20.00%	19.00%
SoCalGas
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Line Items]
Income tax expense (benefit)	$ 138	$ (310)	$ 96
Income from continuing operations before income taxes and equity earnings	738	(736)	601
Pretax income	$ 738	$ (736)	$ 601
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
Depreciation	5.00%	(5.00%)	5.00%
State income taxes, net of federal income tax benefit	2.00%	11.00%	2.00%
Self-developed software expenditures	0.00%	5.00%	(4.00%)
Allowance for equity funds used during construction	(2.00%)	1.00%	(1.00%)
Amortization of excess deferred income taxes	(2.00%)	2.00%	(1.00%)
Utility repairs expenditures	(6.00%)	5.00%	(7.00%)
Other, net	(1.00%)	2.00%	(1.00%)
Nondeductible expenditures	2.00%	0.00%	2.00%
Effective income tax rate	19.00%	42.00%	16.00%

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