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SEGMENT INFORMATION
 3 Months Ended
Mar. 31, 2023
Segment Reporting [Abstract]  
SEGMENT INFORMATION SEGMENT INFORMATION
We have four separately managed reportable segments, as follows:
▪SDG&E provides electric service to San Diego and southern Orange counties and natural gas service to San Diego County.
▪SoCalGas is a natural gas distribution utility, serving customers throughout most of Southern California and part of central California.
▪Sempra Texas Utilities holds our investment in Oncor Holdings, which owns an 80.25% interest in Oncor, a regulated electricity transmission and distribution utility serving customers in the north-central, eastern, western and panhandle regions of Texas; and our indirect, 50% interest in Sharyland Holdings L.P., which owns Sharyland Utilities, L.L.C., a regulated electric transmission utility serving customers near the Texas-Mexico border.
▪Sempra Infrastructure includes the operating companies of our subsidiary, SI Partners, as well as a holding company and certain services companies. Sempra Infrastructure develops, builds, operates and invests in energy infrastructure to help enable the energy transition in North American markets and globally.
We evaluate each segment’s performance based on its contribution to Sempra’s reported earnings and cash flows. SDG&E and SoCalGas operate in essentially separate service territories, under separate regulatory frameworks and rate structures set by the CPUC and, in the case of SDG&E, the FERC.
The cost of common services shared by the business segments is assigned directly or allocated based on various cost factors, depending on the nature of the service provided. Interest income and expense is recorded on intercompany loans. The loan balances and related interest are eliminated in consolidation.
The following tables show selected information by segment from our Condensed Consolidated Statements of Operations and Condensed Consolidated Balance Sheets. Amounts labeled as “All other” in the following tables consist primarily of activities of parent organizations.
SEGMENT INFORMATION  
(Dollars in millions)  
 Three months ended March 31,
 20232022
REVENUES  
SDG&E$1,653 $1,445 
SoCalGas3,794 1,993 
Sempra Infrastructure1,196 424 
Adjustments and eliminations1 2 
Intersegment revenues(1)
(84)(44)
Total$6,560 $3,820 
DEPRECIATION AND AMORTIZATION  
SDG&E$262 $239 
SoCalGas206 187 
Sempra Infrastructure69 65 
All other2 2 
Total$539 $493 
INTEREST INCOME  
SDG&E$1 $— 
SoCalGas4 — 
Sempra Infrastructure15 21 
All other4 4 
Total$24 $25 
INTEREST EXPENSE  
SDG&E$118 $106 
SoCalGas69 40 
Sempra Infrastructure95 27 
All other84 70 
Total$366 $243 
INCOME TAX EXPENSE (BENEFIT)  
SDG&E$7 $64 
SoCalGas94 84 
Sempra Infrastructure330 91 
All other(55)95 
Total$376 $334 
EQUITY EARNINGS  
Equity earnings, before income tax:  
Sempra Texas Utilities$1 $2 
Sempra Infrastructure 131 141 
132 143 
Equity earnings, net of income tax:  
Sempra Texas Utilities83 162 
Sempra Infrastructure4 21 
87 183 
Total$219 $326 
(1)    Revenues for reportable segments include intersegment revenues of $4, $34, and $46 for the three months ended March 31, 2023 and $4, $26, and $14 for the three months ended March 31, 2022 for SDG&E, SoCalGas, and Sempra Infrastructure, respectively.
SEGMENT INFORMATION (CONTINUED)
(Dollars in millions)
Three months ended March 31,
20232022
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES
SDG&E$258 $234 
SoCalGas360 334 
Sempra Texas Utilities83 162 
Sempra Infrastructure
315 95 
All other(47)(213)
Total$969 $612 
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT
SDG&E$624 $552 
SoCalGas458 468 
Sempra Infrastructure744 182 
All other4 2 
Total$1,830 $1,204 
March 31,
2023		December 31,
2022
ASSETS
SDG&E$27,188 $26,422 
SoCalGas22,776 22,346 
Sempra Texas Utilities13,852 13,781 
Sempra Infrastructure16,547 15,760 
All other1,282 1,376 
Intersegment receivables(1,096)(1,111)
Total$80,549 $78,574 
EQUITY METHOD INVESTMENTS
Sempra Texas Utilities$13,843 $13,772 
Sempra Infrastructure1,893 1,905 
Total$15,736 $15,677