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SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Tables)
12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Cash, Cash Equivalents and Restricted Cash
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported on Sempra’s Consolidated Balance Sheets to the sum of such amounts reported on Sempra’s Consolidated Statements of Cash Flows.
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH
(Dollars in millions)
December 31,
 20222021
Cash and cash equivalents$370 $559 
Restricted cash, current40 19 
Restricted cash, noncurrent52 
Total cash, cash equivalents and restricted cash on the Consolidated Statements of Cash Flows$462 $581 
Schedule of Accounts Receivable, Allowance for Credit Loss
We provide below the changes in allowances for credit losses for trade receivables and other receivables. SDG&E and SoCalGas record changes in the allowances for credit losses related to Accounts Receivable – Trade in regulatory accounts.
CHANGES IN ALLOWANCES FOR CREDIT LOSSES
(Dollars in millions)
 202220212020
Sempra:   
Allowances for credit losses at January 1$136 $138 $29 
Incremental allowance upon adoption of ASU 2016-13— — 
Provisions for expected credit losses123 45 124 
Write-offs(78)(47)(16)
Allowances for credit losses at December 31$181 $136 $138 
SDG&E:   
Allowances for credit losses at January 1$66 $69 $14 
Provisions for expected credit losses54 23 65 
Write-offs(42)(26)(10)
Allowances for credit losses at December 31$78 $66 $69 
SoCalGas:   
Allowances for credit losses at January 1$69 $68 $15 
Provisions for expected credit losses65 22 59 
Write-offs(36)(21)(6)
Allowances for credit losses at December 31$98 $69 $68 

Allowances for credit losses related to trade receivables and other receivables are included in the Consolidated Balance Sheets as follows:
ALLOWANCES FOR CREDIT LOSSES
(Dollars in millions)
 December 31,
 20222021
Sempra:  
Accounts receivable trade, net
$140 $94 
Accounts receivable other, net
40 39 
Other long-term assets
Total allowances for credit losses$181 $136 
SDG&E:  
Accounts receivable trade, net
$52 $42 
Accounts receivable other, net
25 22 
Other long-term assets
Total allowances for credit losses$78 $66 
SoCalGas:  
Accounts receivable trade, net
$83 $51 
Accounts receivable other, net
15 17 
Other long-term assets— 
Total allowances for credit losses$98 $69 
Schedule of Inventory
The components of inventories are as follows:
INVENTORY BALANCES AT DECEMBER 31
(Dollars in millions)
SempraSDG&ESoCalGas
202220212022202120222021
Natural gas$106 $164 $$— $74 $114 
LNG62 27 — — — — 
Materials and supplies235 198 133 123 85 58 
Total$403 $389 $134 $123 $159 $172 
Wildfire Fund
The following table summarizes the location of balances related to the Wildfire Fund on Sempra’s and SDG&E’s Consolidated Balance Sheets and Consolidated Statements of Operations.
WILDFIRE FUND
(Dollars in millions)
December 31,
Location20222021
Wildfire Fund asset:
Current
Prepaid Expenses
$29 $29 
Noncurrent
Wildfire Fund
303 331 
Wildfire Fund obligation:
Current
Other Current Liabilities
$13 $13 
NoncurrentDeferred Credits and Other53 64 
Years ended December 31,
202220212020
Amortization of Wildfire Fund assetOperation and Maintenance$29 $29 $29 
Impairment of Wildfire Fund assetOperation and Maintenance— — 
Accretion of Wildfire Fund obligationOperation and Maintenance
.
A CPUC cost of capital proceeding determines a utility’s authorized capital structure and authorized return on rate base. The CCM applies in the interim years between required cost of capital applications and considers changes in the cost of capital based on changes in interest rates based on the applicable utility bond index published by Moody’s (the CCM benchmark rate) for each 12-month period ending September 30 (the measurement period). The index applicable to SDG&E and SoCalGas is based on each utility’s credit rating. The CCM benchmark rate is the basis of comparison to determine if the CCM is triggered in each measurement period, which occurs if the change in the applicable Moody’s utility bond index relative to the CCM benchmark rate is larger than plus or minus 1.000% at the end of the measurement period. The CCM, if triggered, would automatically update the authorized cost of debt based on actual costs and update the authorized ROE upward or downward by one-half of the difference between the CCM benchmark rate and the applicable Moody’s utility bond index. Alternatively, each of SDG&E and SoCalGas are permitted to file a cost of capital application in an interim year in which an extraordinary or catastrophic event materially impacts its cost of capital and affects utilities differently than the market as a whole to have its cost of capital determined in lieu of the CCM.
In December 2019, the CPUC approved the following cost of capital for SDG&E and SoCalGas that became effective on January 1, 2020 and remained in effect through December 31, 2022, subject to the CCM.
CPUC AUTHORIZED COST OF CAPITAL FOR 2020 – 2022
SDG&ESoCalGas
Authorized weightingReturn on
rate base
Weighted
return on
rate base
Authorized weightingReturn on
rate base
Weighted
return on
rate base
45.25 %4.59 %2.08 %Long-Term Debt45.60 %4.23 %1.93 %
2.75 6.22 0.17 Preferred Equity2.40 6.00 0.14 
52.00 10.20 5.30 Common Equity52.00 10.05 5.23 
100.00 %7.55 %100.00 %7.30 %
CPUC AUTHORIZED COST OF CAPITAL FOR 2023 – 2025
SDG&ESoCalGas
Authorized weightingReturn on
rate base
Weighted
return on
rate base(1)
Authorized weightingReturn on
rate base
Weighted
return on
rate base
45.25 %4.05 %1.83 %Long-Term Debt45.60 %4.07 %1.86 %
2.75 6.22 0.17 Preferred Equity2.40 6.00 0.14 
52.00 9.95 5.17 Common Equity52.00 9.80 5.10 
100.00 %7.18 %100.00 %7.10 %
(1)    Total weighted return on rate base does not sum due to rounding differences.
Schedule of Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT BY MAJOR FUNCTIONAL CATEGORY
(Dollars in millions)
 December 31,Depreciation rates for years ended
December 31,
 20222021202220212020
SDG&E:     
Natural gas operations$3,707 $3,200 2.57 %2.55 %2.51 %
Electric distribution10,271 9,471 3.94 3.93 3.90 
Electric transmission(1)
8,061 7,577 3.03 3.02 3.10 
Electric generation2,461 2,446 5.11 4.74 4.56 
Other electric2,211 2,100 7.03 7.23 6.92 
Construction work in progress(1)
1,863 1,662 
N/A
N/A
N/A
Total SDG&E28,574 26,456   
SoCalGas:     
Natural gas operations23,646 21,894 3.57 3.65 3.63 
Other non-utility50 50 1.54 2.23 3.80 
Construction work in progress1,362 1,160 
N/A
N/A
N/A
Total SoCalGas25,058 23,104    
Sempra Infrastructure and parent(2):
  Estimated useful livesWeighted-average useful life
Land and land rights476 291 
16 to 44 years(3)
37
Machinery and equipment:    
Pipelines and storage3,813 3,698 
41 to 49 years
42
Generating plants1,803 1,659 
11 to 28 years
26
LNG terminals1,138 1,138 
43 years
43
Refined products terminals643 420 
38 years
38
Other344 370 
1 to 22 years
3
Construction work in progress1,757 1,494 N/AN/A
Other287 310 
4 to 34 years
16
 10,261 9,380   
Total Sempra$63,893 $58,940   
(1)    At December 31, 2022, includes $554 in electric transmission assets and $7 in construction work in progress related to SDG&E’s 86% interest in the Southwest Powerlink transmission line, jointly owned by SDG&E with other utilities. SDG&E, and each of the other owners, holds its undivided interest as a tenant in common in the property. Each owner is responsible for its share of the project and participates in decisions concerning operations and capital expenditures. SDG&E’s share of operating expenses is included in Sempra’s and SDG&E’s Consolidated Statements of Operations.
(2)    Includes $246 and $211 at December 31, 2022 and 2021, respectively, of utility plant, primarily pipelines and other distribution assets at Ecogas.
(3)    Estimated useful lives are for land rights.
DEPRECIATION EXPENSE
(Dollars in millions)
 Years ended December 31,
 202220212020
Sempra$1,995 $1,833 $1,646 
SDG&E977 884 797 
SoCalGas755 711 649 
ACCUMULATED DEPRECIATION AND AMORTIZATION
(Dollars in millions)
 December 31,
 20222021
SDG&E:  
Accumulated depreciation:  
Natural gas operations$979 $919 
Electric transmission, distribution and generation(1)
5,789 5,489 
Total SDG&E6,768 6,408 
SoCalGas:  
Accumulated depreciation:
Natural gas operations7,291 6,845 
Other non-utility17 16 
Total SoCalGas7,308 6,861 
Sempra Infrastructure and parent:  
Accumulated depreciation other(2)
2,035 1,777 
Total Sempra $16,111 $15,046 
(1)    Includes $307 at December 31, 2022 related to SDG&E’s 86% interest in the Southwest Powerlink transmission line, jointly owned by SDG&E and other utilities.
(2)    Includes $65 and $55 at December 31, 2022 and 2021, respectively, of accumulated depreciation for utility plant at Ecogas.
Schedule Of Capitalized Financing Costs
The table below summarizes capitalized financing costs, comprised of AFUDC and capitalized interest.
CAPITALIZED FINANCING COSTS
(Dollars in millions)
 Years ended December 31,
 202220212020
Sempra$255 $217 $202 
SDG&E116 106 104 
SoCalGas73 64 55 
Schedule Of Other Intangible Assets
Other Intangible Assets included on Sempra’s Consolidated Balance Sheets are as follows:
OTHER INTANGIBLE ASSETS
(Dollars in millions)
 Amortization period
(years)
December 31,
 20222021
Renewable energy transmission and consumption permits
15 to 19
$169 $169 
O&M agreement
23
66 66 
ESJ PPA
14
190 190 
Other
10 to indefinite
15 15 
  440 440 
Less accumulated amortization:   
Renewable energy transmission and consumption permits(50)(40)
O&M agreement(15)(12)
ESJ PPA(23)(10)
Other (8)(8)
  (96)(70)
  $344 $370 
Schedule Of Asset Retirement Obligations
The changes in AROs are as follows:
CHANGES IN ASSET RETIREMENT OBLIGATIONS
(Dollars in millions)
 SempraSDG&ESoCalGas
 202220212020202220212020202220212020
Balance as of January 1(1)
$3,538 $3,289 $3,083 $890 $876 $866 $2,582 $2,368 $2,177 
Accretion expense141 133 127 37 38 39 101 92 86 
Liabilities incurred and acquired21 20 — — — — 
Payments(57)(63)(63)(54)(60)(60)(3)(3)(2)
Revisions(2)
69 159 140 34 31 63 125 107 
Balance at December 31(1)
$3,712 $3,538 $3,289 $887 $890 $876 $2,743 $2,582 $2,368 
(1)    Current portion of the ARO for Sempra is included in Other Current Liabilities on the Consolidated Balance Sheets.
(2)    SDG&E’s change in ARO in 2022 and 2021 includes $1 and $22, respectively, due to a revised estimate that is offset in noncurrent Regulatory Liabilities and Regulatory Assets, respectively, on the Consolidated Balance Sheets.
Schedule Of Changes In Accumulated Other Comprehensive Income By Component The following tables present the changes in AOCI by component and amounts reclassified out of AOCI to net income, excluding amounts attributable to NCI.
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT(1)
(Dollars in millions)
 Foreign
currency
translation
adjustments
Financial
instruments
Pension
and PBOP
Total
AOCI
Sempra(2):
Balance as of December 31, 2019$(607)$(215)$(117)$(939)
OCI before reclassifications(3)(4)
(102)(163)(26)(291)
Amounts reclassified from AOCI(3)
645 47 38 730 
Net OCI(4)
543 (116)12 439 
Balance as of December 31, 2020(64)(331)(105)(500)
OCI before reclassifications(4)
(34)62 36 
Amounts reclassified from AOCI(5)
19 113 14 146 
Net OCI(4)(5)
(15)175 22 182 
Balance as of December 31, 2021(79)(156)(83)(318)
OCI before reclassifications10 147 (11)146 
Amounts reclassified from AOCI(6)
10 19 37 
Net OCI(6)
20 166 (3)183 
Balance as of December 31, 2022$(59)$10 $(86)$(135)
SDG&E:
Balance as of December 31, 2019$(16)$(16)
OCI before reclassifications(3)
(4)(4)
Amounts reclassified from AOCI(3)
10 10 
Net OCI
Balance as of December 31, 2020(10)(10)
OCI before reclassifications(1)(1)
Amounts reclassified from AOCI
Net OCI— — 
Balance as of December 31, 2021(10)(10)
OCI before reclassifications
Amounts reclassified from AOCI
Net OCI
Balance as of December 31, 2022$(7)$(7)
SoCalGas:
Balance as of December 31, 2019$(13)$(10)$(23)
OCI before reclassifications(3)
— (10)(10)
Amounts reclassified from AOCI(3)
— 
Net OCI— (8)(8)
Balance as of December 31, 2020(13)(18)(31)
OCI before reclassifications— (2)(2)
Amounts reclassified from AOCI— 
Net OCI— — — 
Balance as of December 31, 2021(13)(18)(31)
OCI before reclassifications— 
Amounts reclassified from AOCI
Net OCI
Balance as of December 31, 2022$(12)$(12)$(24)
(1)    All amounts are net of income tax, if subject to tax, and after NCI.
(2)    Includes discontinued operations in 2020.
(3)    Pension and PBOP and Total AOCI include $6 in transfers of liabilities from SDG&E to SoCalGas and $3 in transfers of liabilities from SDG&E to Sempra in 2020.
(4)    Total AOCI includes $(28) of foreign currency translation adjustments and $(16) of financial instruments associated with the IEnova exchange and cash tender offers in 2021. Total AOCI includes $(4) of foreign currency translation adjustments and $(3) of financial instruments associated with IEnova’s repurchases of NCI in 2020. We discuss these transactions below in “Other Noncontrolling Interests – Sempra Infrastructure.” These transactions do not impact the Consolidated Statements of Comprehensive Income (Loss).
(5)    Total AOCI includes $19 of foreign currency translation adjustments and $47 of financial instruments associated with the sale of NCI to KKR in 2021. We discuss this transaction below in “Other Noncontrolling Interests – Sempra Infrastructure.” This transaction does not impact the Consolidated Statement of Comprehensive Income (Loss).
(6)    Total AOCI includes $9 of foreign currency translation adjustments associated with the sale of NCI to ADIA in 2022. We discuss this transaction below in “Other Noncontrolling Interests – Sempra Infrastructure.” This transaction does not impact the Consolidated Statement of Comprehensive Income (Loss).
Schedule Of Reclassifications Out Of Accumulated Other Comprehensive Income
RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
(Dollars in millions)
Details about accumulated
other comprehensive income (loss) components
Amounts reclassified from accumulated
other comprehensive income (loss)
Affected line item on
Consolidated Statements of Operations
 Years ended December 31, 
 202220212020 
Sempra:    
Foreign currency translation adjustments$$— $— Operation and Maintenance
Foreign currency translation adjustments— — 645 
Income from Discontinued Operations,
Net of Income Tax
Total, net of income tax$$— $645 
Financial instruments:    
Interest rate instruments$$11 $10 Interest Expense
Interest rate instruments29 73 46 
Equity Earnings(1)
Foreign exchange instruments(1)(1)Revenues: Energy-Related Businesses
— — Other Income (Expense), Net
Interest rate and foreign exchange instruments(2)Interest Expense
(12)11 Other Income (Expense), Net
Total, before income tax16 92 67  
(6)(24)(19)Income Tax Expense
Total, net of income tax10 68 48  
(2)(1)Earnings Attributable to Noncontrolling Interests
Total, net of income tax and after NCI$19 $66 $47  
Pension and PBOP(2):
   
Amortization of actuarial loss$$$Other Income (Expense), Net
Amortization of actuarial loss— — 
Income from Discontinued Operations,
Net of Income Tax
Amortization of prior service costOther Income (Expense), Net
Settlement charges— 22 Other Income (Expense), Net
Total, before income tax11 19 40 
— — (2)
Income from Discontinued Operations,
Net of Income Tax
 (3)(5)(9)Income Tax Expense
Total, net of income tax$$14 $29  
Total reclassifications for the period, net of income
tax and after NCI
$28 $80 $721  
SDG&E:    
Pension and PBOP(2):
    
Amortization of actuarial loss$$— $Other Income, Net
Amortization of prior service cost— Other Income, Net
Total, before income tax
 — — (1)Income Tax Expense
Total reclassifications for the period, net of income
tax
$$$ 
SoCalGas:    
Financial instruments:    
Interest rate instruments$$— $— Interest Expense
Pension and PBOP(2):
    
Amortization of actuarial loss$$$Other Expense, Net
Amortization of prior service costOther Expense, Net
Total, before income tax322 
(1)— — Income Tax Expense
Total, net of income tax$$$
Total reclassifications for the period, net of income
tax
$$$ 
(1)    Equity earnings at our foreign equity method investees are recognized after tax.
(2)    Amounts are included in the computation of net periodic benefit cost (see “Net Periodic Benefit Cost” in Note 9).
Schedule Of Noncontrolling Interests
The following table provides information about NCI held by others in subsidiaries or entities consolidated by us and recorded in Other Noncontrolling Interests in Total Equity on Sempra’s Consolidated Balance Sheets.
OTHER NONCONTROLLING INTERESTS
(Dollars in millions)
 Percent ownership held by
noncontrolling interests
 Equity held by
noncontrolling interests
 December 31,December 31,
 2022202120222021
Sempra Infrastructure:    
SI Partners30.0 %20.0 %$2,060 $1,384 
SI Partners subsidiaries(1)
0.1 - 16.6
0.1 - 16.6
61 34 
Total Sempra   $2,121 $1,418 
(1)    SI Partners has subsidiaries with NCI held by others. Percentage range reflects the highest and lowest ownership percentages among these subsidiaries.
Schedule of Related Party Transactions
TRANSACTIONS WITH AFFILIATES
We summarize amounts due from and to unconsolidated affiliates at Sempra, SDG&E and SoCalGas in the following table.
AMOUNTS DUE FROM (TO) UNCONSOLIDATED AFFILIATES
(Dollars in millions)
 December 31,
 20222021
Sempra:  
Tax sharing arrangement with Oncor Holdings$41 $18 
Various affiliates13 
Total due from unconsolidated affiliates – current$54 $23 
Sempra Infrastructure – IMG – Note due March 15, 2022, net of allowance for credit losses of $1 at December 31, 2021(1)
$— $637 
Total due from unconsolidated affiliates – noncurrent$— $637 
Sempra Infrastructure(2):
TAG Pipelines Norte, S. de R.L. de C.V.:
5.5% Note due January 9, 2024
$(40)$(69)
5.5% Note due January 14, 2025
(23)(21)
5.5% Note due July 16, 2025
(21)(20)
5.5% Note due January 14, 2026
(19)— 
5.5% Note due July 14, 2026
(11)— 
TAG – 5.74% Note due December 17, 2029
(187)(177)
Total due to unconsolidated affiliates – noncurrent$(301)$(287)
SDG&E:  
Sempra$(49)$(40)
SoCalGas(72)(48)
Various affiliates(14)(9)
Total due to unconsolidated affiliates – current$(135)$(97)
Income taxes due from Sempra(3)
$10 $19 
SoCalGas:  
SDG&E$72 $48 
Various affiliates
Total due from unconsolidated affiliates – current$77 $49 
Sempra$(36)$(36)
Total due to unconsolidated affiliates – current$(36)$(36)
Income taxes due (to) from Sempra(3)
$(16)$
(1)    At December 31, 2021, represents a Mexican peso-denominated revolving line of credit for up to 14.2 billion Mexican pesos or approximately $691 U.S. dollar-equivalent at a variable interest rate based on the 91-day Interbank Equilibrium Interest Rate plus 220 bps (8.06% at December 31, 2021). At December 31, 2021, $2 of accrued interest receivable is included in Due from Unconsolidated Affiliates Current. In March 2022, Sempra Infrastructure amended and restated the revolving line of credit to a U.S. dollar-denominated note in the amount of $625 at a variable interest rate based on the adjusted 1-month SOFR plus 180 bps and extended the maturity date to March 15, 2023. In July 2022, this note receivable was paid in full.
(2)    U.S. dollar-denominated loans at fixed interest rates. Amounts include principal balances plus accumulated interest outstanding.
(3)    SDG&E and SoCalGas are included in the consolidated income tax return of Sempra, and their respective income tax expense is computed as an amount equal to that which would result from each company having always filed a separate return. Amounts include current and noncurrent income taxes due to/from Sempra.
The following table summarizes income statement information from unconsolidated affiliates.
INCOME STATEMENT IMPACT FROM UNCONSOLIDATED AFFILIATES
(Dollars in millions)
 Years ended December 31,
 202220212020
Sempra:
Revenues$41 $31 $37 
Cost of sales— 11 45 
Interest income16 50 56 
Interest expense15 15 14 
SDG&E:
Revenues$16 $11 $
Cost of sales92 103 79 
SoCalGas:
Revenues$100 $98 $88 
Cost of sales(1)
(9)— 
(1)    Includes net commodity costs from natural gas transactions with unconsolidated affiliates.
Schedule Of Other Income (Expense) Other Income (Expense), Net on the Consolidated Statements of Operations consists of the following:
OTHER INCOME (EXPENSE), NET
(Dollars in millions)
 Years ended December 31,
 202220212020
Sempra:   
Allowance for equity funds used during construction$143 $133 $128 
Investment (losses) gains, net(1)
(42)50 41 
Gains (losses) on interest rate and foreign exchange instruments, net11 (28)(67)
Foreign currency transaction losses, net(2)
(24)(18)(25)
Non-service component of net periodic benefit cost(59)(67)(102)
Interest on regulatory balancing accounts, net26 14 
Sundry, net(31)(18)(37)
Total$24 $58 $(48)
SDG&E:   
Allowance for equity funds used during construction$88 $81 $79 
Non-service component of net periodic benefit cost(11)(13)(20)
Interest on regulatory balancing accounts, net18 
Sundry, net(3)(10)(16)
Total$92 $64 $52 
SoCalGas:   
Allowance for equity funds used during construction$55 $48 $41 
Non-service component of net periodic benefit cost(42)(40)(54)
Interest on regulatory balancing accounts, net— 
Sundry, net(29)(22)(20)
Total$(8)$(14)$(28)
(1)    Represents net investment (losses) gains on dedicated assets in support of our executive retirement and deferred compensation plans. These amounts are offset by corresponding changes in compensation expense related to the plans, recorded in O&M on the Consolidated Statements of Operations.
(2)    Includes losses of $11, $23 and $42 in 2022, 2021 and 2020, respectively, from translation to U.S. dollars of a Mexican peso-denominated loan to IMG, which are offset by corresponding amounts included in Equity Earnings on the Consolidated Statements of Operations.