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SEGMENT INFORMATION
 12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Segment Information SEGMENT INFORMATION
We have five 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, which owns Sharyland Utilities, a regulated electric transmission utility serving customers near the Texas-Mexico border. As we discuss in Note 5, we acquired our investment in Sharyland Holdings in May 2019.
▪Sempra Mexico develops, owns and operates, or holds interests in, natural gas, electric, LNG, LPG, ethane and liquid fuels infrastructure, and has marketing operations for the purchase of LNG and the purchase and sale of natural gas in Mexico.
▪Sempra LNG develops and builds natural gas liquefaction export facilities, holds an interest in a facility for the export of LNG, owns and operates natural gas pipelines, and buys, sells and transports natural gas through its marketing operations, all within the U.S. and Mexico. In February 2019, we completed the sale of our natural gas storage assets at Mississippi Hub and Bay Gas.
In April 2019, Sempra Renewables completed the sale of its remaining wind assets and investments. Upon completion of this sale, remaining nominal business activities at Sempra Renewables were subsumed into Parent and other and the Sempra Renewables segment ceased to exist. The tables below include amounts from Sempra Renewables up until cessation of the segment.
As we discuss in Note 5, the financial information related to our businesses that constituted the Sempra South American Utilities segment is presented as discontinued operations for all periods presented. The information in the tables below excludes amounts from discontinued operations unless otherwise noted. We completed the sales of our discontinued operations in the second quarter of 2020.
We evaluate each segment’s performance based on its contribution to Sempra Energy’s reported earnings and cash flows. The California Utilities operate in essentially separate service territories, under separate regulatory frameworks and rate structures set by the CPUC and the FERC. We describe the accounting policies of all of our segments in Note 1.
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 Consolidated Statements of Operations and Consolidated Balance Sheets. We provide information about our equity method investments by segment in Note 6. Amounts labeled as “All other” in the following tables consist primarily of activities of parent organizations and include certain nominal amounts from our South American businesses that did not qualify for treatment as discontinued operations.
SEGMENT INFORMATION
(Dollars in millions)
 Years ended December 31,
 202020192018
REVENUES     
SDG&E$5,313 $4,925 $4,568 
SoCalGas4,748 4,525 3,962 
Sempra Mexico1,256 1,375 1,376 
Sempra LNG 374 410 472 
Sempra Renewables— 10 124 
All other2 3 — 
Adjustments and eliminations(3)(3)(3)
Intersegment revenues(1)
(320)(416)(397)
Total$11,370 $10,829 $10,102 
INTEREST EXPENSE     
SDG&E(2)
$413  $411  $221 
SoCalGas158  141  115 
Sempra Mexico132  119  120 
Sempra LNG43  35  21 
Sempra Renewables—  3  19 
All other389  450  496 
Intercompany eliminations(54) (82) (106)
Total$1,081  $1,077  $886 
INTEREST INCOME     
SDG&E$2 $4 $4 
SoCalGas2  2  2 
Sempra Mexico60  78  65 
Sempra LNG 81  61  49 
Sempra Renewables—  11  12 
All other7  4  14 
Intercompany eliminations(56) (73) (61)
Total$96  $87  $85 
DEPRECIATION AND AMORTIZATION     
SDG&E$801 $760 $688 
SoCalGas654 602 556 
Sempra Mexico189 183 175 
Sempra LNG9 10 26 
Sempra Renewables— — 27 
All other13 14 19 
Total$1,666 $1,569 $1,491 
INCOME TAX EXPENSE (BENEFIT)     
SDG&E$190  $171  $173 
SoCalGas96  120  92 
Sempra Texas Utilities1 — — 
Sempra Mexico57  227  185 
Sempra LNG92  (5) (435)
Sempra Renewables—  4  71 
All other(187) (202) (135)
Total$249  $315  $(49)
SEGMENT INFORMATION (CONTINUED)
(Dollars in millions)
 Years ended December 31 or at December 31,
 202020192018
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES   
SDG&E$824 $767 $669 
SoCalGas504 641 400 
Sempra Texas Utilities579 528 371 
Sempra Mexico259 253 237 
Sempra LNG320 (6)(617)
Sempra Renewables— 59 328 
Discontinued operations1,840 328 156 
All other(562)(515)(620)
Total$3,764 $2,055 $924 
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT   
SDG&E$1,942 $1,522 $1,542 
SoCalGas1,843 1,439 1,538 
Sempra Mexico611 624 368 
Sempra LNG 268 112 31 
Sempra Renewables— 2 51 
All other12 9 14 
Total$4,676 $3,708 $3,544 
ASSETS   
SDG&E$22,311 $20,560 $19,225 
SoCalGas18,460 17,077 15,389 
Sempra Texas Utilities12,542 11,619 9,652 
Sempra Mexico10,752 9,938 9,165 
Sempra LNG2,205 3,901 4,060 
Sempra Renewables— — 2,549 
Discontinued operations— 3,958 3,718 
All other1,209 749 1,070 
Intersegment receivables(856)(2,137)(4,190)
Total$66,623 $65,665 $60,638 
GEOGRAPHIC INFORMATION
Long-lived assets(3):
United States$46,902 $43,719 $40,611 
Mexico6,929 6,355 5,800 
Total$53,831 $50,074 $46,411 
Revenues(4):
   
United States$10,205 $9,574 $8,840 
Mexico1,165 1,255 1,262 
Total$11,370 $10,829 $10,102 
(1)Revenues for reportable segments include intersegment revenues of $5 million, $88 million, $91 million and $136 million for 2020; $5 million, $69 million, $120 million and $222 million for 2019; and $4 million, $64 million, $114 million and $215 million for 2018 for SDG&E, SoCalGas, Sempra Mexico and Sempra LNG, respectively.
(2)In accordance with adoption of the lease standard on January 1, 2019, on a prospective basis, a significant portion of finance lease costs for PPAs that have historically been presented in Cost of Electric Fuel and Purchased Power are now presented in Interest Expense.
(3)Includes net PP&E and investments.
(4)Amounts are based on where the revenue originated, after intercompany eliminations.