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FAIR VALUE MEASUREMENTS - RECURRING FAIR VALUE MEASURES (Details) - Recurring - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | $ 904 | $ 879
Short-term investments held in Rabbi Trust | 47 | 67
Support Agreement, net of related guarantee fees | 23 | 23
Total | 1,305 | 1,168
Total | 46 | 226
Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 28 | 21
Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 325 | 312
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 59 | 51
Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 270 | 275
Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 222 | 220
Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 551 | 546
Interest rate instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 223 | 87
Commodity contracts not subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 5 | 5
Effect of netting and allocation of collateral | 87 | 74
Derivative liabilities | 9 | 6
Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 10 | 11
Effect of netting and allocation of collateral | 6 | 22
Derivative liabilities | 54 | 230
Effect of netting and allocation of collateral | (26) | (19)
Foreign exchange instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative liabilities | 9 | 9
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 388 | 361
Short-term investments held in Rabbi Trust | 47 | 67
Support Agreement, net of related guarantee fees | 0 | 0
Total | 523 | 518
Total | 0 | 1
Level 1 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 24 | 19
Level 1 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 322 | 308
Level 1 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 42 | 34
Level 1 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 1 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 1 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 42 | 34
Level 1 | Interest rate instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Level 1 | Commodity contracts not subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 87 | 74
Derivative liabilities | 0 | 0
Level 1 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 1 | 16
Derivative liabilities | 26 | 20
Effect of netting and allocation of collateral | (26) | (19)
Level 1 | Foreign exchange instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative liabilities | 0 | 0
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 516 | 518
Short-term investments held in Rabbi Trust | 0 | 0
Support Agreement, net of related guarantee fees | 0 | 0
Total | 745 | 611
Total | 46 | 225
Level 2 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 4 | 2
Level 2 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 3 | 4
Level 2 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 17 | 17
Level 2 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 270 | 275
Level 2 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 222 | 220
Level 2 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 509 | 512
Level 2 | Interest rate instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 223 | 87
Level 2 | Commodity contracts not subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 5 | 5
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | 9 | 6
Level 2 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 1 | 1
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | 28 | 210
Effect of netting and allocation of collateral | 0 | 0
Level 2 | Foreign exchange instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative liabilities | 9 | 9
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Short-term investments held in Rabbi Trust | 0 | 0
Support Agreement, net of related guarantee fees | 23 | 23
Total | 37 | 39
Total | 0 | 0
Level 3 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Level 3 | Interest rate instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Level 3 | Commodity contracts not subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | 0 | 0
Level 3 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 9 | 10
Effect of netting and allocation of collateral | 5 | 6
Derivative liabilities | 0 | 0
Effect of netting and allocation of collateral | 0 | 0
Level 3 | Foreign exchange instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative liabilities | 0 | 0
SDG&E |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 904 | 879
Total | 918 | 910
Total | 4 | 1
SDG&E | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 28 | 21
SDG&E | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 325 | 312
SDG&E | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 59 | 51
SDG&E | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 270 | 275
SDG&E | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 222 | 220
SDG&E | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 551 | 546
SDG&E | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 9 | 10
Effect of netting and allocation of collateral | 5 | 21
Derivative liabilities | 30 | 20
Effect of netting and allocation of collateral | (26) | (19)
SDG&E | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 388 | 361
Total | 388 | 376
Total | 0 | 1
SDG&E | Level 1 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 24 | 19
SDG&E | Level 1 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 322 | 308
SDG&E | Level 1 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 42 | 34
SDG&E | Level 1 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 1 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 1 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 42 | 34
SDG&E | Level 1 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 0 | 15
Derivative liabilities | 26 | 20
Effect of netting and allocation of collateral | (26) | (19)
SDG&E | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 516 | 518
Total | 516 | 518
Total | 4 | 0
SDG&E | Level 2 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 4 | 2
SDG&E | Level 2 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 3 | 4
SDG&E | Level 2 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 17 | 17
SDG&E | Level 2 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 270 | 275
SDG&E | Level 2 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 222 | 220
SDG&E | Level 2 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 509 | 512
SDG&E | Level 2 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | 4 | 0
Effect of netting and allocation of collateral | 0 | 0
SDG&E | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
Total | 14 | 16
Total | 0 | 0
SDG&E | Level 3 | Short-term investments, primarily cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Municipal bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Other securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Total debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total nuclear decommissioning trusts | 0 | 0
SDG&E | Level 3 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 9 | 10
Effect of netting and allocation of collateral | 5 | 6
Derivative liabilities | 0 | 0
Effect of netting and allocation of collateral | 0 | 0
SoCalGas |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 2 | 2
Total | 24 | 210
SoCalGas | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 1 | 1
Effect of netting and allocation of collateral | 1 | 1
Derivative liabilities | 24 | 210
SoCalGas | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 1 | 1
Total | 0 | 0
SoCalGas | Level 1 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 1 | 1
Derivative liabilities | 0 | 0
SoCalGas | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 1 | 1
Total | 24 | 210
SoCalGas | Level 2 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 1 | 1
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | 24 | 210
SoCalGas | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 0 | 0
Total | 0 | 0
SoCalGas | Level 3 | Commodity contracts subject to rate recovery |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Effect of netting and allocation of collateral | 0 | 0
Derivative liabilities | $ 0 | $ 0

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- Definition The fair value of investments held in a trust fund to pay for the costs of decontaminating and decommissioning facilities, whether such amount is presented as a separate caption or as a parenthetical disclosure on the balance sheet. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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