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SEGMENT INFORMATION
 3 Months Ended
Mar. 31, 2022
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 electric 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. Sempra Infrastructure owns an 80% interest in SI Partners, which held a 100% ownership interest in Sempra LNG Holding, LP and a 99.9% ownership interest in IEnova at March 31, 2022.
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,
 20222021
REVENUES  
SDG&E$1,445 $1,337 
SoCalGas1,993 1,508 
Sempra Infrastructure424 449 
All other— 1 
Adjustments and eliminations2 — 
Intersegment revenues(1)
(44)(36)
Total$3,820 $3,259 
DEPRECIATION AND AMORTIZATION  
SDG&E$239 $213 
SoCalGas187 173 
Sempra Infrastructure65 54 
All other2 2 
Total$493 $442 
INTEREST INCOME  
SDG&E$— $1 
Sempra Infrastructure21 21 
All other4 — 
Intercompany eliminations— (3)
Total$25 $19 
INTEREST EXPENSE  
SDG&E$106 $102 
SoCalGas40 39 
Sempra Infrastructure27 41 
All other70 83 
Intercompany eliminations— (6)
Total$243 $259 
INCOME TAX EXPENSE (BENEFIT)   
SDG&E$64 $45 
SoCalGas84 94 
Sempra Infrastructure91 57 
All other95 (38)
Total$334 $158 
EQUITY EARNINGS  
Equity earnings, before income tax:  
Sempra Texas Utilities$2 $1 
Sempra Infrastructure 141 134 
143 135 
Equity earnings, net of income tax:  
Sempra Texas Utilities162 136 
Sempra Infrastructure21 47 
183 183 
Total$326 $318 
(1)    Revenues for reportable segments include intersegment revenues of $4, $26, and $14 for the three months ended March 31, 2022 and $2, $25, and $9 for the three months ended March 31, 2021 for SDG&E, SoCalGas, and Sempra Infrastructure, respectively.
SEGMENT INFORMATION (CONTINUED)
(Dollars in millions)
Three months ended March 31,
20222021
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES
SDG&E$234 $212 
SoCalGas334 407 
Sempra Texas Utilities162 135 
Sempra Infrastructure
95 202 
All other(213)(82)
Total$612 $874 
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT
SDG&E$552 $555 
SoCalGas468 459 
Sempra Infrastructure182 166 
All other2 1 
Total$1,204 $1,181 
March 31,
2022		December 31,
2021
ASSETS
SDG&E$24,835 $24,058 
SoCalGas21,205 20,324 
Sempra Texas Utilities13,218 13,047 
Sempra Infrastructure14,435 14,408 
All other2,430 1,399 
Intersegment receivables(1,201)(1,191)
Total$74,922 $72,045 
EQUITY METHOD AND OTHER INVESTMENTS
Sempra Texas Utilities$13,218 $13,047 
Sempra Infrastructure1,572 1,425 
Total$14,790 $14,472