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GENERAL INFORMATION AND OTHER FINANCIAL DATA - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | [1] | $ 28,675 |
OCI before reclassifications |  | 50 | $ (43)
Amounts reclassified from AOCI |  | (4) | (4)
Total other comprehensive income, net of tax amount, attributable to parent |  | 46 | (47)
Ending balance |  | 29,135 |
Total accumulated other comprehensive income (loss) |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (150) | (135)
Ending balance |  | (104) | (182)
Foreign currency translation adjustments |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (36) | (59)
OCI before reclassifications |  | 3 | 10
Amounts reclassified from AOCI |  | 0 | 0
Total other comprehensive income, net of tax amount, attributable to parent |  | 3 | 10
Ending balance |  | (33) | (49)
Financial instruments |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | 3 | 10
OCI before reclassifications |  | 45 | (40)
Amounts reclassified from AOCI |  | (6) | (5)
Total other comprehensive income, net of tax amount, attributable to parent |  | 39 | (45)
Ending balance |  | 42 | (35)
Pension and PBOP |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (117) | (86)
OCI before reclassifications |  | 2 | (13)
Amounts reclassified from AOCI |  | 2 | 1
Total other comprehensive income, net of tax amount, attributable to parent |  | 4 | (12)
Ending balance |  | (113) | (98)
SDG&E |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | [1] | 9,902 |
Ending balance |  | 10,125 |
SDG&E | Total accumulated other comprehensive income (loss) |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (8) | (7)
Ending balance |  | (8) | (7)
SDG&E | Pension and PBOP |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (8) | (7)
Ending balance |  | (8) | (7)
SoCalGas |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | [1] | 7,410 |
Amounts reclassified from AOCI |  | 1 | 1
Total other comprehensive income, net of tax amount, attributable to parent |  | 1 | 1
Ending balance |  | 7,770 |
SoCalGas | Total accumulated other comprehensive income (loss) |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (23) | (24)
Ending balance |  | (22) | (23)
SoCalGas | Financial instruments |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (11) | (12)
Amounts reclassified from AOCI |  | 0 | 0
Total other comprehensive income, net of tax amount, attributable to parent |  | 0 | 0
Ending balance |  | (11) | (12)
SoCalGas | Pension and PBOP |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance |  | (12) | (12)
Amounts reclassified from AOCI |  | 1 | 1
Total other comprehensive income, net of tax amount, attributable to parent |  | 1 | 1
Ending balance |  | $ (11) | $ (11)
[1] | Derived from audited financial statements.

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