GENERAL INFORMATION AND OTHER FINANCIAL DATA - INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Expense And Effective Income Tax Rates Disclosure [Line Items]
Income tax expense (benefit)	$ (130)	$ 175	$ 42	$ 551
Income before income taxes and equity earnings	308	523	1,013	1,852
Equity earnings, before income tax:	160	153	294	285
Pretax income	$ 468	$ 676	$ 1,307	$ 2,137
Effective income tax rate (as a percent)	(28.00%)	26.00%	3.00%	26.00%
SDG&E
Income Tax Expense And Effective Income Tax Rates Disclosure [Line Items]
Income tax expense (benefit)	$ 34	$ 4	$ 74	$ 11
Income before income taxes and equity earnings	$ 220	$ 188	$ 483	$ 453
Effective income tax rate (as a percent)	15.00%	2.00%	15.00%	2.00%
SoCalGas
Income Tax Expense And Effective Income Tax Rates Disclosure [Line Items]
Income tax expense (benefit)	$ 10	$ (21)	$ 53	$ 73
Income before income taxes and equity earnings	$ 141	$ 135	$ 543	$ 589
Effective income tax rate (as a percent)	7.00%	(16.00%)	10.00%	12.00%