REVENUES - RECEIVABLES FROM REVENUES FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	$ 1,887	$ 1,821
Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	1,767	1,787
Accounts receivable – trade, net | Community Choice Aggregation
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	152	144
Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	22	12
Due from unconsolidated affiliates – current
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	0	4
Assets held for sale
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	77	0
Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	21	18
SDG&E
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	841	795
SDG&E | Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	809	774
SDG&E | Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	18	11
SDG&E | Due from unconsolidated affiliates – current
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	11	6
SDG&E | Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	3	4
SoCalGas
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	980	947
SoCalGas | Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	958	932
SoCalGas | Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	4	1
SoCalGas | Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	$ 18	$ 14