REVENUES - RECEIVABLES FROM REVENUES FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	$ 1,420	$ 1,970
Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	1,371	1,951
Accounts receivable – trade, net | Community Choice Aggregation
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	135	148
Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	23	15
Due from unconsolidated affiliates – current
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	6	4
Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	20	0
SDG&E
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	718	889
SDG&E | Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	684	870
SDG&E | Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	19	13
SDG&E | Due from unconsolidated affiliates – current
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	8	6
SDG&E | Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	7	0
SoCalGas
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	600	987
SoCalGas | Accounts receivable – trade, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	583	985
SoCalGas | Accounts receivable – other, net
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	4	2
SoCalGas | Other long-term assets
Contract with Customer, Asset [Line Items]
Receivables from revenues from contracts with customers	$ 13	$ 0