INCOME TAXES - INCOME TAX EXPENSE (BENEFIT) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Expense (Benefit)	$ 701	$ 219	$ 490
Income before income taxes	1,169	2,110	2,627
Equity earnings	620	603	633
Pretax income	$ 1,789	$ 2,713	$ 3,260
Effective income tax rate	39.00%	8.00%	15.00%
SDG&E
Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Expense (Benefit)	$ (128)	$ 153	$ (26)
Income before income taxes	435	1,044	910
Pretax income	$ 435	$ 1,044	$ 910
Effective income tax rate	(29.00%)	15.00%	(3.00%)
SoCalGas
Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Expense (Benefit)	$ (38)	$ 31	$ (5)
Income before income taxes	828	987	807
Pretax income	$ 828	$ 987	$ 807
Effective income tax rate	(5.00%)	3.00%	(1.00%)