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SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | $ 27,115 |  |
Total other comprehensive income, net of tax amount, attributable to parent | 31 | $ 174 | $ 160
AOCI, ending balance | 28,675 | 27,115 |
AOCI associated with noncontrolling interests | (28) | 54 | 11
SDG&E |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | 9,067 |  |
Total other comprehensive income, net of tax amount, attributable to parent | (1) | 3 |
AOCI, ending balance | 9,902 | 9,067 |
SoCalGas |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | 6,698 |  |
Total other comprehensive income, net of tax amount, attributable to parent | 1 | 7 |
AOCI, ending balance | 7,410 | 6,698 |
Foreign currency translation adjustments |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (59) | (79) | (64)
OCI before reclassifications | 23 | 10 | (34)
Amounts reclassified from AOCI | 0 | 10 | 19
Total other comprehensive income, net of tax amount, attributable to parent | 23 | 20 | (15)
AOCI, ending balance | (36) | (59) | (79)
AOCI associated with noncontrolling interests |  | 9 |
Foreign currency translation adjustments | KKR |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Amounts reclassified from AOCI |  |  | 19
Foreign currency translation adjustments | IEnova |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI associated with noncontrolling interests |  |  | (28)
Financial instruments |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | 10 | (156) | (331)
OCI before reclassifications | 59 | 147 | 62
Amounts reclassified from AOCI | (66) | 19 | 113
Total other comprehensive income, net of tax amount, attributable to parent | (7) | 166 | 175
AOCI, ending balance | 3 | 10 | (156)
AOCI associated with noncontrolling interests | (46) |  |
Financial instruments | KKR |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Amounts reclassified from AOCI |  |  | 47
Financial instruments | IEnova |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI associated with noncontrolling interests |  |  | (16)
Financial instruments | SoCalGas |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (12) | (13) | (13)
OCI before reclassifications | 0 | 0 | 0
Amounts reclassified from AOCI | 1 | 1 | 0
Total other comprehensive income, net of tax amount, attributable to parent | 1 | 1 | 0
AOCI, ending balance | (11) | (12) | (13)
Pension and PBOP |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (86) | (83) | (105)
OCI before reclassifications | (35) | (11) | 8
Amounts reclassified from AOCI | 4 | 8 | 14
Total other comprehensive income, net of tax amount, attributable to parent | (31) | (3) | 22
AOCI, ending balance | (117) | (86) | (83)
Pension and PBOP | SDG&E |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (7) | (10) | (10)
OCI before reclassifications | (2) | 2 | (1)
Amounts reclassified from AOCI | 1 | 1 | 1
Total other comprehensive income, net of tax amount, attributable to parent | (1) | 3 | 0
AOCI, ending balance | (8) | (7) | (10)
Pension and PBOP | SoCalGas |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (12) | (18) | (18)
OCI before reclassifications | (1) | 4 | (2)
Amounts reclassified from AOCI | 1 | 2 | 2
Total other comprehensive income, net of tax amount, attributable to parent | 0 | 6 | 0
AOCI, ending balance | (12) | (12) | (18)
Accumulated other comprehensive income (loss) |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (135) | (318) | (500)
OCI before reclassifications | 47 | 146 | 36
Amounts reclassified from AOCI | (62) | 37 | 146
Total other comprehensive income, net of tax amount, attributable to parent | (15) | 183 | 182
AOCI, ending balance | (150) | (135) | (318)
Accumulated other comprehensive income (loss) | SDG&E |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (7) | (10) | (10)
OCI before reclassifications | (2) | 2 | (1)
Amounts reclassified from AOCI | 1 | 1 | 1
Total other comprehensive income, net of tax amount, attributable to parent | (1) | 3 | 0
AOCI, ending balance | (8) | (7) | (10)
Accumulated other comprehensive income (loss) | SoCalGas |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
AOCI, beginning balance | (24) | (31) | (31)
OCI before reclassifications | (1) | 4 | (2)
Amounts reclassified from AOCI | 2 | 3 | 2
Total other comprehensive income, net of tax amount, attributable to parent | 1 | 7 | 0
AOCI, ending balance | $ (23) | $ (24) | $ (31)

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