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GENERAL INFORMATION AND OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Capitalized Financing Costs Disclosure [Line Items] |  |  |  |
Capitalized financing costs | $ 195 | $ 155 | $ 369 | $ 300
SDG&E |  |  |  |
Capitalized Financing Costs Disclosure [Line Items] |  |  |  |
Capitalized financing costs | 32 | 27 | 57 | 53
SoCalGas |  |  |  |
Capitalized Financing Costs Disclosure [Line Items] |  |  |  |
Capitalized financing costs | $ 25 | $ 26 | $ 50 | $ 50

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- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479123/980-835-45-1 + Details
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