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GENERAL INFORMATION AND OTHER FINANCIAL DATA - RECLASSIFICATION FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Operation and Maintenance | $ 1,383 | $ 1,206 | $ 3,958 | $ 3,454
Interest expense | (312) | (282) | (995) | (796)
Energy-related businesses | 596 | 673 | 2,338 | 1,710
Other Income (Expense), Net | 3 | (40) | 75 | (3)
Income before income taxes and equity earnings | 323 | 165 | 2,175 | 1,194
Income tax benefit (expense) | 52 | (21) | (499) | (435)
Net income | 854 | 561 | 2,762 | 1,877
Earnings Attributable to Noncontrolling Interests | (122) | (65) | (435) | (187)
Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest expense | (70) | (50) | (210) | (135)
Other Income (Expense), Net | (2) | (43) | (9) | (5)
Income before income taxes and equity earnings | 11 | (110) | 600 | 415
Income tax benefit (expense) | 5 | 28 | (68) | (75)
Net income | 16 | (82) | 532 | 340
San Diego Gas and Electric Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest expense | (126) | (113) | (367) | (333)
Other Income (Expense), Net | 25 | 12 | 75 | 68
Income before income taxes and equity earnings | 259 | 306 | 712 | 822
Income tax benefit (expense) | 15 | (35) | 4 | (141)
Net income | 274 | 271 | 716 | 681
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Earnings attributable to common shares | (4) | 7 | (11) | 27
Reclassification out of Accumulated Other Comprehensive Income | Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Earnings attributable to common shares | 0 | 1 | 2 | 3
Reclassification out of Accumulated Other Comprehensive Income | San Diego Gas and Electric Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Earnings attributable to common shares | 0 | 1 | 0 | 1
Reclassification out of Accumulated Other Comprehensive Income | Foreign currency translation adjustments |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Operation and Maintenance |  |  | 0 | 1
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Income before income taxes and equity earnings | (13) | 6 | (37) | 23
Income tax benefit (expense) | 2 | (2) | 5 | (7)
Net income | (11) | 4 | (32) | 16
Earnings attributable to common shares | (5) | 5 | (14) | 20
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Net income |  |  | 1 | 2
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest rate instruments |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest expense | 1 | 2 | 1 | 1
Equity earnings | (12) | 1 | (33) | 28
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest rate instruments | Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest expense |  |  | 1 | 1
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Foreign exchange instruments |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Equity earnings | (1) | 0 | 1 | (1)
Energy-related businesses |  |  | 0 | (2)
Other Income (Expense), Net | (1) | 0 | 1 | 1
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest rate and foreign exchange instruments |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest expense |  |  | (1) | (1)
Other Income (Expense), Net | 0 | 3 | (6) | (3)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Earnings Attributable to Noncontrolling Interests | 6 | 1 | 18 | 4
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other Income (Expense), Net | 1 | 2 | 2 | 6
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss | Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amortization of prior service cost |  |  | 0 | 1
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss | San Diego Gas and Electric Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amortization of prior service cost | 0 | 1 | 0 | 1
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service cost |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other Income (Expense), Net | 1 | 1 | 2 | 3
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service cost | Southern California Gas Company |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amortization of prior service cost | 0 | 1 | 1 | 1
Reclassification out of Accumulated Other Comprehensive Income | Pension and PBOP |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Income before income taxes and equity earnings | 2 | 3 | 4 | 9
Income tax benefit (expense) | (1) | (1) | (1) | (3)
Net income | $ 1 | $ 2 | $ 3 | $ 6

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