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DERIVATIVE FINANCIAL INSTRUMENTS - DERIVATIVE COMMODITY VOLUMES (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 MWh MMBTU | Dec. 31, 2022 MMBTU MWh
Natural gas | Long |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MMBTU | 441 | 254
Electricity |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MWh | 0 | 1
Congestion revenue rights |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MWh | 40 | 42
SDG&E | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MMBTU | 16 | 15
SDG&E | Congestion revenue rights |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MWh | 40 | 42
SoCalGas | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount | MMBTU | 347 | 224

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
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