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COMMITMENTS AND CONTINGENCIES - LEASES CASH FLOW INFORMATION (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Lessee, Lease, Description [Line Items] |  |  |
Cash paid for operating leases | $ 112 | $ 85 | $ 88
Cash paid for finance leases | 163 | 167 | 169
Cash paid for finance leases | 66 | 60 | 48
Increase in operating lease obligations for ROU assets | 520 | 143 | 142
Increase in finance lease obligations capitalized to PP&E | 41 | 57 | 57
SDG&E |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Cash paid for operating leases | 70 | 46 | 45
Cash paid for finance leases | 158 | 162 | 166
Cash paid for finance leases | 42 | 40 | 33
Increase in operating lease obligations for ROU assets | 474 | 134 | 134
Increase in finance lease obligations capitalized to PP&E | 14 | 17 | 16
SoCalGas |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Cash paid for operating leases | 12 | 13 | 18
Cash paid for finance leases | 6 | 5 | 2
Cash paid for finance leases | 24 | 20 | 15
Increase in operating lease obligations for ROU assets | 0 | 0 | 1
Increase in finance lease obligations capitalized to PP&E | $ 27 | $ 40 | $ 41

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