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DEBT AND CREDIT FACILITIES - OTHER LONG-TERM DEBT (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2024 USD ($) | Sep. 30, 2024 USD ($) | May 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) business_day
Debt Instrument [Line Items] |  |  |  |  |
Various long-term obligations |  |  |  |  | $ 16,200
Not subject to make-whole provisions |  |  |  |  | 6,691
Subject to make-whole provisions |  |  |  |  | 26,203
Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Not subject to make-whole provisions |  |  |  |  | 6,687
Subject to make-whole provisions |  |  |  |  | 9,903
Variable percentage rate | 2.354% | 2.632% |  |  |
SoCalGas |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Various long-term obligations |  |  |  |  | 709
Not subject to make-whole provisions |  |  |  |  | 4
Subject to make-whole provisions |  |  |  |  | $ 7,350
Five Point Six Percent First Mortgage Bonds, Due April 1, 2054 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Number of days before interest rate period | business_day |  |  |  |  | 2
Debt instrument, interest rate, period (in years) |  |  |  |  | 5 years
Five Point Six Percent First Mortgage Bonds, Due April 1, 2054 | SoCalGas | Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from issuance of debt |  |  |  | $ 491 |
Underwriting discounts and debt issuance costs |  |  |  | 9 |
6.875% Junior Subordinated Notes, Due October 1, 2054 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amount |  |  | $ 500 |  |
Proceeds from issuance of debt |  |  | 489 |  |
Underwriting discounts and debt issuance costs |  |  | 11 |  |
Accrued interest |  |  | $ 7 |  |
6.40% Junior Subordinated Notes, Due October 1, 2054 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated percentage rate |  | 6.40% |  |  |
6.40% Junior Subordinated Notes, Due October 1, 2054 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amount |  | $ 1,250 |  |  |
Proceeds from issuance of debt |  | 1,235 |  |  |
Underwriting discounts and debt issuance costs |  | $ 15 |  |  |
Other Long-Term Debt, 6.625% Junior Subordinated Notes April 1, 2055 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amount | $ 400 |  |  |  |
Stated percentage rate | 6.625% |  |  |  | 6.625%
Proceeds from issuance of debt | $ 395 |  |  |  |
Underwriting discounts and debt issuance costs | 5 |  |  |  |
Other Long-Term Debt, 6.55% Junior Subordinated Notes April 1, 2055 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amount | $ 600 |  |  |  |
Stated percentage rate | 6.55% |  |  |  | 6.55%
Proceeds from issuance of debt | $ 593 |  |  |  |
Underwriting discounts and debt issuance costs | $ 7 |  |  |  |
Variable percentage rate | 2.138% |  |  |  |
Other Long-Term Debt, 6.875% Junior Subordinated Notes October 1, 2054 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amount |  |  |  | 600 |
Stated percentage rate |  |  |  |  | 6.875%
Proceeds from issuance of debt |  |  |  | 593 |
Underwriting discounts and debt issuance costs |  |  |  | $ 7 |
Other Long-Term Debt, 6.875% Junior Subordinated Notes October 1, 2054 | Other Sempra | Period one |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed (in percent) |  |  | 100.00% |  | 100.00%
Other Long-Term Debt, 6.875% Junior Subordinated Notes October 1, 2054 | Other Sempra | Period two |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed (in percent) |  |  | 102.00% | 102.00% |
6.875% Junior Subordinated Notes, Issued In March and May 2024 | Other Sempra |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable percentage rate |  |  | 2.789% |  |
Loan at variable rates (includes $1,090 and $200 at December 31, 2024 and 2023, respectively, (5.329% after floating-to-fixed rate swaps effective 2023) and $58 at December 31, 2023 (weighted-average rate of 7.37% at December 31, 2023)) March 20, 2030, collateralized by plant assets(1) | Sempra Infrastructure |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Fixed percentage interest rate |  |  |  |  | 5.329%

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