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DERIVATIVE FINANCIAL INSTRUMENTS - DERIVATIVE IMPACT ON INCOME (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Derivative [Line Items] |  |  |  |
Pretax gain (loss) reclassified from AOCI into earnings | $ 315 | $ 66 | $ 321 | $ 227
Pretax gain (loss) on derivatives recognized in earnings | 1 | (3) | 5 | 2
Derivatives designated as hedging instruments: | Cash Flow Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 367 | 75 | 401 | 262
Pretax gain (loss) reclassified from AOCI into earnings | 13 | (6) | 37 | (23)
Derivatives designated as hedging instruments: | Interest Expense | Cash Flow Hedging | Interest rate instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 320 | 4 | 337 | 39
Pretax gain (loss) reclassified from AOCI into earnings | (1) | (2) | (1) | (1)
Derivatives designated as hedging instruments: | Interest Expense | Cash Flow Hedging | Interest rate instruments | Southern California Gas Company |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI |  |  | 0 | 0
Pretax gain (loss) reclassified from AOCI into earnings |  |  | (1) | (1)
Derivatives designated as hedging instruments: | Interest Expense | Cash Flow Hedging | Interest rate and foreign exchange instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI |  |  | 7 | 13
Pretax gain (loss) reclassified from AOCI into earnings |  |  | 1 | 1
Derivatives designated as hedging instruments: | Equity Earnings | Cash Flow Hedging | Interest rate instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 32 | 68 | 56 | 212
Pretax gain (loss) reclassified from AOCI into earnings | 12 | (1) | 33 | (28)
Derivatives designated as hedging instruments: | Equity Earnings | Cash Flow Hedging | Foreign exchange instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 7 | 1 | 1 | (1)
Pretax gain (loss) reclassified from AOCI into earnings | 1 | 0 | (1) | 1
Derivatives designated as hedging instruments: | Revenues: Energy- Related Businesses | Cash Flow Hedging | Foreign exchange instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 8 | 2 | 0 | (1)
Pretax gain (loss) reclassified from AOCI into earnings | 0 | 0 | 0 | 2
Derivatives designated as hedging instruments: | Other Income (Expense), Net | Cash Flow Hedging | Foreign exchange instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) reclassified from AOCI into earnings | 1 | 0 | (1) | (1)
Derivatives designated as hedging instruments: | Other Income (Expense), Net | Cash Flow Hedging | Interest rate and foreign exchange instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) recognized in OCI | 0 | 0 |  |
Pretax gain (loss) reclassified from AOCI into earnings | 0 | (3) | 6 | 3
Derivatives not designated as hedging instruments: |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | (19) | (222) | 571 | (460)
Derivatives not designated as hedging instruments: | Commodity contracts not subject to rate recovery |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 83 | (227) | 785 | (455)
Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery | Southern California Gas Company |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | (125) | (11) | (172) | (15)
Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery | San Diego Gas and Electric Company |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 23 | 16 | 5 | 10
Derivatives not designated as hedging instruments: | Contingent Interest Rate Derivative |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 0 | 0 | (47) | 0
Derivatives not designated as hedging instruments: | Cost of Electric Fuel and Purchased Power | Commodity contracts subject to rate recovery |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 23 | 16 | 5 | 10
Derivatives not designated as hedging instruments: | Cost of Natural Gas | Commodity contracts subject to rate recovery |  |  |  |
Derivative [Line Items] |  |  |  |
Pretax gain (loss) on derivatives recognized in earnings | $ (125) | $ (11) | $ (172) | $ (15)

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