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REGULATORY MATTERS (Tables)
 12 Months Ended
Dec. 31, 2024
Regulated Operations [Abstract]  
Schedule of Regulatory Assets
We show the details of regulatory assets and liabilities in the following table and discuss them below. With the exception of regulatory balancing accounts, we generally do not earn a return on our regulatory assets until a related cash expenditure has been made. Upon the occurrence of a cash expenditure associated with a regulatory asset, the related amounts are recoverable through a regulatory account mechanism for which we earn a return authorized by applicable regulators, which generally approximates the three-month commercial paper rate. The periods during which we recognize a regulatory asset while we do not earn a return vary by regulatory asset.
REGULATORY ASSETS (LIABILITIES) AT DECEMBER 31
(Dollars in millions)
SempraSDG&ESoCalGas
 202420232024202320242023
Fixed-price contracts and other derivatives$53 $215 $11 $14 $42 $201 
Deferred income taxes recoverable in rates1,689 1,142 802 626 817 430 
Pension and PBOP plan obligations(458)(212)(2)48 (456)(260)
Employee benefit costs19 24 3 3 16 21 
Removal obligations(3,295)(3,082)(2,676)(2,468)(619)(614)
Environmental costs149 139 115 105 34 34 
Sunrise Powerlink fire mitigation124 124 124 124 — — 
Regulatory balancing accounts(1)(2):
Commodity – electric(313)(233)(313)(233)— — 
Commodity – gas, including transportation(47)(259)86 52 (133)(311)
Safety and reliability820 959 227 207 593 752 
Public purpose programs(439)(273)(219)(144)(220)(129)
2024 GRC retroactive impacts631 — 277 — 354 — 
Wildfire mitigation plan808 685 808 685 — — 
Liability insurance premium(24)113 (15)90 (9)23 
Other balancing accounts158 373 (51)(152)209 525 
Other regulatory assets (liabilities), net(2)
164 (10)87 49 79 (58)
Total$39 $(295)$(736)$(994)$707 $614 
(1)    At December 31, 2024 and 2023, the noncurrent portion of regulatory balancing accounts – net undercollected for Sempra was $1,731 and $1,913, respectively, for SDG&E was $873 and $950, respectively, and for SoCalGas was $858 and $963, respectively.
(2)    Includes regulatory assets earning a return authorized by applicable regulators, which generally approximates the three-month commercial paper rate.
Schedule of Regulatory Liabilities
We show the details of regulatory assets and liabilities in the following table and discuss them below. With the exception of regulatory balancing accounts, we generally do not earn a return on our regulatory assets until a related cash expenditure has been made. Upon the occurrence of a cash expenditure associated with a regulatory asset, the related amounts are recoverable through a regulatory account mechanism for which we earn a return authorized by applicable regulators, which generally approximates the three-month commercial paper rate. The periods during which we recognize a regulatory asset while we do not earn a return vary by regulatory asset.
REGULATORY ASSETS (LIABILITIES) AT DECEMBER 31
(Dollars in millions)
SempraSDG&ESoCalGas
 202420232024202320242023
Fixed-price contracts and other derivatives$53 $215 $11 $14 $42 $201 
Deferred income taxes recoverable in rates1,689 1,142 802 626 817 430 
Pension and PBOP plan obligations(458)(212)(2)48 (456)(260)
Employee benefit costs19 24 3 3 16 21 
Removal obligations(3,295)(3,082)(2,676)(2,468)(619)(614)
Environmental costs149 139 115 105 34 34 
Sunrise Powerlink fire mitigation124 124 124 124 — — 
Regulatory balancing accounts(1)(2):
Commodity – electric(313)(233)(313)(233)— — 
Commodity – gas, including transportation(47)(259)86 52 (133)(311)
Safety and reliability820 959 227 207 593 752 
Public purpose programs(439)(273)(219)(144)(220)(129)
2024 GRC retroactive impacts631 — 277 — 354 — 
Wildfire mitigation plan808 685 808 685 — — 
Liability insurance premium(24)113 (15)90 (9)23 
Other balancing accounts158 373 (51)(152)209 525 
Other regulatory assets (liabilities), net(2)
164 (10)87 49 79 (58)
Total$39 $(295)$(736)$(994)$707 $614 
(1)    At December 31, 2024 and 2023, the noncurrent portion of regulatory balancing accounts – net undercollected for Sempra was $1,731 and $1,913, respectively, for SDG&E was $873 and $950, respectively, and for SoCalGas was $858 and $963, respectively.
(2)    Includes regulatory assets earning a return authorized by applicable regulators, which generally approximates the three-month commercial paper rate.
Schedule of Regulated Operations
The following table summarizes the location of balances related to the Wildfire Fund on Sempra’s and SDG&E’s Consolidated Balance Sheets.
WILDFIRE FUND
(Dollars in millions)
December 31,
Location20242023
Wildfire Fund asset:
Current
Prepaid Expenses
$14 $28 
Noncurrent
Wildfire Fund
262 269 
Wildfire Fund obligation:
Current
Other Current Liabilities
13 13 
NoncurrentDeferred Credits and Other31 42 
The following table summarizes the cost of capital for SDG&E and SoCalGas. The authorized weighting remained unchanged for each of the years presented.
AUTHORIZED COST OF CAPITAL
Authorized weighting20222023202420252022
2023(1)
20242025
Return on rate baseWeighted return on rate base
SDG&E:
Long-Term Debt45.25 %4.59 %4.05 %4.34 %4.34 %2.08 %1.83 %1.96 %1.96 %
Preferred Equity2.75 6.22 6.22 6.22 6.22 0.17 0.17 0.17 0.17 
Common Equity52.00 10.20 9.95 10.65 10.23 5.30 5.17 5.54 5.32 
100.00 %7.55 %7.18 %7.67 %7.45 %
SoCalGas:
Long-Term Debt45.60 %4.23 %4.07 %4.54 %4.63 %1.93 %1.86 %2.07 %2.11 %
Preferred Equity2.40 6.00 6.00 6.00 6.00 0.14 0.14 0.14 0.14 
Common Equity52.00 10.05 9.80 10.50 10.08 5.23 5.10 5.46 5.24 
100.00 %7.30 %7.10 %7.67 %7.49 %
(1)    Total weighted return on rate base for SDG&E does not sum due to rounding differences.