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OTHER FINANCIAL DATA (Tables)
 3 Months Ended
Sep. 30, 2013
Other Financial Data (Tables) [Abstract]  
Net Periodic Benefit Cost Table
NET PERIODIC BENEFIT COST – SEMPRA ENERGY CONSOLIDATED
(Dollars in millions)
 Pension BenefitsOther Postretirement Benefits
 Three months ended September 30,Three months ended September 30,
 2013201220132012
Service cost$ 28$ 23$ 8$ 4
Interest cost  35  40  10  11
Expected return on assets  (39)  (38)  (15)  (13)
Amortization of:        
Prior service cost (credit)  1  ―  (1)  ―
Actuarial loss  11  12  ―  2
Settlement  1  1  ―  ―
Regulatory adjustment  (14)  9  3  3
Total net periodic benefit cost$ 23$ 47$ 5$ 7
 Nine months ended September 30,Nine months ended September 30,
 2013201220132012
Service cost$ 82$ 68$ 21$ 19
Interest cost  111  122  33  39
Expected return on assets  (121)  (116)  (44)  (40)
Amortization of:        
Prior service cost (credit)  3  2  (3)  (2)
Actuarial loss  41  35  5  9
Settlement  1  8  ―  ―
Regulatory adjustment  (65)  (9)  7  8
Total net periodic benefit cost$ 52$ 110$ 19$ 33

NET PERIODIC BENEFIT COST – SDG&E
(Dollars in millions)
 Pension BenefitsOther Postretirement Benefits
 Three months ended September 30,Three months ended September 30,
 2013201220132012
Service cost$ 8$ 7$ 2$ 1
Interest cost  9  11  2  2
Expected return on assets  (13)  (11)  (3)  (1)
Amortization of:        
Prior service cost   ―  ―  1  1
Actuarial loss  3  4  ―  ―
Settlement  1  (1)  ―  ―
Regulatory adjustment  3  7  1  1
Total net periodic benefit cost$ 11$ 17$ 3$ 4
 Nine months ended September 30,Nine months ended September 30,
 2013201220132012
Service cost$ 24$ 21$ 6$ 5
Interest cost  30  34  6  6
Expected return on assets  (39)  (35)  (7)  (5)
Amortization of:        
Prior service cost   1  1  3  3
Actuarial loss  10  11  ―  ―
Settlement  1  1  ―  ―
Regulatory adjustment  (3)  7  1  2
Total net periodic benefit cost$ 24$ 40$ 9$ 11

NET PERIODIC BENEFIT COST – SOCALGAS
(Dollars in millions)
 Pension BenefitsOther Postretirement Benefits
 Three months ended September 30,Three months ended September 30,
 2013201220132012
Service cost$ 17$ 13$ 5$ 2
Interest cost  22  24  8  9
Expected return on assets  (24)  (23)  (12)  (10)
Amortization of:        
Prior service credit  ―  ―  (2)  (1)
Actuarial loss  6  6  ―  1
Regulatory adjustment  (17)  2  2  2
Total net periodic benefit cost$ 4$ 22$ 1$ 3
 Nine months ended September 30,Nine months ended September 30,
 2013201220132012
Service cost$ 50$ 40$ 13$ 12
Interest cost  68  74  26  31
Expected return on assets  (73)  (72)  (36)  (33)
Amortization of:        
Prior service cost (credit)  1  1  (6)  (5)
Actuarial loss  23  17  4  8
Settlement  ―  1  ―  ―
Regulatory adjustment  (62)  (16)  6  6
Total net periodic benefit cost$ 7$ 45$ 7$ 19
Contributions to Benefit Plans Table
 Sempra Energy  
(Dollars in millions)ConsolidatedSDG&ESoCalGas
Contributions through September 30, 2013:      
Pension plans$ 48$ 26$ 8
Other postretirement benefit plans  19  9  7
Total expected contributions in 2013:      
Pension plans$ 132$ 53$ 59
Other postretirement benefit plans  23  12  7
Earnings Per Share Computations Table
EARNINGS PER SHARE COMPUTATIONS
(Dollars in millions, except per share amounts; shares in thousands)
  Three months ended September 30, Nine months ended September 30,
  20132012 20132012
Numerator:         
Earnings/Income attributable to common shares$ 296$ 268 $ 719$ 566
           
Denominator:         
Weighted-average common shares          
 outstanding for basic EPS  244,140  241,689   243,682  241,133
Dilutive effect of stock options, restricted          
 stock awards and restricted stock units  5,119  4,113   5,041  3,880
Weighted-average common shares          
 outstanding for diluted EPS  249,259  245,802   248,723  245,013
           
Earnings per share:         
Basic$1.21$1.11 $ 2.95$ 2.35
Diluted$1.19$1.09 $ 2.89$ 2.31
Total Shareholder Return Ranking Table
Four-Year Cumulative Total Shareholder Return Ranking versus S&P 500 Utilities Index(1)Number of Sempra Energy Common Shares Received for Each Performance-Based Restricted Stock Unit(2)
75th Percentile or Above1.5
50th Percentile 1
35th Percentile or Below―
(1)If Sempra Energy ranks at or above the 50th percentile compared to the S&P 500 Index, participants will receive a minimum of 1.0 share for each RSU.
(2)Participants also receive additional shares for dividend equivalents on shares subject to RSUs, which are reinvested to purchase additional units that become subject to the same vesting conditions as the RSUs to which the dividends relate.
Capitalized Financing Costs Table
CAPITALIZED FINANCING COSTS    
(Dollars in millions)    
 Three months ended September 30,Nine months ended September 30,
 2013201220132012
Sempra Energy Consolidated:        
AFUDC related to debt$ 6$ 5$ 17$ 32
AFUDC related to equity  14  13  44  80
Other capitalized financing costs  9  13  22  40
Total Sempra Energy Consolidated$ 29$ 31$ 83$ 152
SDG&E:        
AFUDC related to debt$ 4$ 3$ 12$ 26
AFUDC related to equity  10  6  30  61
Total SDG&E$ 14$ 9$ 42$ 87
SoCalGas:        
AFUDC related to debt$ 2$ 2$ 5$ 6
AFUDC related to equity  4  7  14  19
Total SoCalGas$ 6$ 9$ 19$ 25
Changes in Components of Accumulated Comprehensive Income Table
CHANGES IN COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (1)
(Dollars in millions)
  Three months ended September 30, 2013
  Foreign     Total
  CurrencyUnamortizedUnamortized Accumulated Other
  TranslationNetPrior ServiceFinancialComprehensive
  AdjustmentsActuarial LossCreditInstrumentsIncome (Loss)
Sempra Energy Consolidated:          
Balance as of June 30, 2013$ (96)$ (98)$ 1$ (26)$ (219)
Other comprehensive income (loss) before           
reclassifications  5  ―  ―  (6)  (1)
Amounts reclassified from accumulated other          
comprehensive income  ―  3  ―  2  5
Net other comprehensive income (loss)  5  3  ―  (4)  4
Balance as of September 30, 2013$ (91)$ (95)$ 1$ (30)$ (215)
SDG&E:          
Balance as of June 30, 2013$ ―$ (11)$ 1$ ―$ (10)
Amounts reclassified from accumulated other          
comprehensive income  ―  1  ―  ―  1
Net other comprehensive income  ―  1  ―  ―  1
Balance as of September 30, 2013$ ―$ (10)$ 1$ ―$ (9)
(1)All amounts are net of income tax, if subject to tax, and exclude noncontrolling interests.

CHANGES IN COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (1)
(Dollars in millions)
  Nine months ended September 30, 2013
  Foreign     Total
  CurrencyUnamortizedUnamortized Accumulated Other
  TranslationNetPrior ServiceFinancialComprehensive
  AdjustmentsActuarial LossCreditInstrumentsIncome (Loss)
Sempra Energy Consolidated:          
Balance as of December 31, 2012$ (240)$ (102)$ 1$ (35)$ (376)
Other comprehensive income (loss) before           
reclassifications  (121)  ―  ―  1  (120)
Amounts reclassified from accumulated other          
comprehensive income  270(2) 7  ―  4  281
Net other comprehensive income  149  7  ―  5  161
Balance as of September 30, 2013$ (91)$ (95)$ 1$ (30)$ (215)
SDG&E:          
Balance as of December 31, 2012$ ―$ (12)$ 1$ ―$ (11)
Amounts reclassified from accumulated other          
comprehensive income  ―  2  ―  ―  2
Net other comprehensive income  ―  2  ―  ―  2
Balance as of September 30, 2013$ ―$ (10)$ 1$ ―$ (9)
SoCalGas:          
Balance as of December 31, 2012$ ―$ (4)$ 1$ (15)$ (18)
Amounts reclassified from accumulated other          
comprehensive income  ―  ―  ―  1  1
Net other comprehensive income  ―  ―  ―  1  1
Balance as of September 30, 2013$ ―$ (4)$ 1$ (14)$ (17)
(1)All amounts are net of income tax, if subject to tax, and exclude noncontrolling interests.
(2)Represents cumulative foreign currency translation adjustment related to the impairment of our Argentine investments in 2006, which is substantially offset by an accrued liability established at that time. We provide additional information about these investments in Note 4.
Reclassifications out of AOCI Table
RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
(Dollars in millions)
Three months ended September 30, 2013
 Amount reclassified 
Details about accumulatedfrom accumulated otherAffected line item
other comprehensive income (loss) componentscomprehensive income (loss)on Condensed Consolidated Statement of Operations
Sempra Energy Consolidated:        
Financial instruments:        
Interest rate instruments $ 3 Interest Expense
Interest rate instruments   3 Equity Losses, Before Income Tax
Total before income tax  6  
      (2) Income Tax
Net of income tax  4  
      (2) Earnings Attributable to Noncontrolling Interests
    $ 2     
           
Amortization of defined benefit pension         
and postretirement benefits items:        
 Actuarial gain $ 5 (1)
      (2) Income Tax
Net of income tax$ 3  
SDG&E:        
Financial instruments:        
Interest rate instruments $ 2 Interest Expense
      (2) Earnings Attributable to Noncontrolling Interest
 $ ―     
           
Amortization of defined benefit pension         
and postretirement benefits items:        
 Actuarial gain $ 2 (1)
      (1) Income Tax
Net of income tax$ 1  
(1)Amounts are included in the computation of net periodic benefit cost (see "Pension and Other Postretirement Benefits" above).

RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
(Dollars in millions)
Nine months ended September 30, 2013
 Amount reclassified 
Details about accumulatedfrom accumulated otherAffected line item
other comprehensive income (loss) componentscomprehensive income (loss)on Condensed Consolidated Statement of Operations
Sempra Energy Consolidated:        
Foreign currency translation $270 Equity Earnings, Net of Income Tax(1)
           
Financial instruments:        
Interest rate instruments $ 9 Interest Expense
Interest rate instruments   7 Equity Losses, Before Income Tax
Commodity contracts not subject to    Cost of Natural Gas, Electric Fuel and Purchased
 rate recovery   (5)  Power
Total before income tax  11  
      (1) Income Tax
Net of income tax  10  
      (6) Earnings Attributable to Noncontrolling Interests
    $ 4     
           
Amortization of defined benefit pension         
and postretirement benefits items:        
 Actuarial gain $ 12 (2)
      (5) Income Tax
Net of income tax$ 7  
SDG&E:        
Financial instruments:        
Interest rate instruments $ 6 Interest Expense
      (6) Earnings Attributable to Noncontrolling Interest
    $ ―     
           
Amortization of defined benefit pension         
and postretirement benefits items:        
 Actuarial gain $ 3 (2)
      (1) Income Tax
Net of income tax$ 2  
SoCalGas:        
Financial instruments:        
Interest rate instruments $ 1 Interest Expense
      ― Income Tax
Net of income tax$ 1     
(1)Represents cumulative foreign currency translation adjustment related to the impairment of our Argentine investments in 2006, which is substantially offset by an accrued liability established at that time. We provide additional information about these investments in Note 4.
(2)Amounts are included in the computation of net periodic benefit cost (see "Pension and Other Postretirement Benefits" above).
Income Tax Expense (Benefit) Associated with Other Comprehensive Income Table
INCOME TAX EXPENSE (BENEFIT) ASSOCIATED WITH OTHER COMPREHENSIVE INCOME
(Dollars in millions)
   Three months ended September 30,
   2013 2012
   Share-Non-  Share-Non- 
   holders'controllingTotal holders'controllingTotal
   Equity(1)InterestsEquity Equity(1)InterestsEquity
Sempra Energy Consolidated:             
 Other comprehensive income before              
  reclassifications:             
   Financial instruments$ (2)$ ―$ (2) $ (3)$ ―$ (3)
                
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Pension and other postretirement benefits$ 2$ ―$ 2 $ (7)$ ―$ (7)
   Financial instruments  2  ―  2   2  ―  2
SDG&E:             
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Pension and other postretirement benefits$ 1$ ―$ 1 $ ―$ ―$ ―
SoCalGas:             
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Financial instruments$ ―$ ―$ ― $ 1$ ―$ 1
   Nine months ended September 30,
   2013 2012
   Share-Non-  Share-Non- 
   holders'controllingTotal holders'controllingTotal
   Equity(1)InterestsEquity Equity(1)InterestsEquity
Sempra Energy Consolidated:             
 Other comprehensive income before              
  reclassifications:             
   Financial instruments$ 3$ ―$ 3 $ (8)$ ―$ (8)
                
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Pension and other postretirement benefits$ 5$ ―$ 5 $ (4)$ ―$ (4)
   Financial instruments  1  ―  1   3  ―  3
SDG&E:             
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Pension and other postretirement benefits$ 1$ ―$ 1 $ ―$ ―$ ―
SoCalGas:             
 Amounts reclassified from accumulated other              
  comprehensive income:             
   Financial instruments$ ―$ ―$ ― $ 1$ ―$ 1
(1)Shareholders' equity of Sempra Energy Consolidated, SDG&E or SoCalGas as indicated in left margin.
Shareholders' Equity and Noncontrolling Interests Table
SHAREHOLDERS’ EQUITY AND NONCONTROLLING INTERESTS
(Dollars in millions)
   Sempra     
   Energy Non-  
   Shareholders’ controlling Total
   Equity Interests Equity
Balance at December 31, 2012$ 10,282$ 401$ 10,683
Comprehensive income  888  33  921
Preferred dividends of subsidiaries  (5)  ―  (5)
Share-based compensation expense  30  ―  30
Common stock dividends declared  (460)  ―  (460)
Issuance of common stock  57  ―  57
Repurchase of common stock  (45)  ―  (45)
Tax benefit related to share-based compensation  30  ―  30
Sale of noncontrolling interests, net of offering costs  135  439  574
Distributions to noncontrolling interests  ―  (28)  (28)
Call premium on preferred stock of subsidiary  (3)  ―  (3)
Balance at September 30, 2013$ 10,909$ 845$ 11,754
Balance at December 31, 2011$ 9,775$ 403$ 10,178
Comprehensive income  671  42  713
Preferred dividends of subsidiaries  (5)  ―  (5)
Share-based compensation expense  33  ―  33
Common stock dividends declared  (435)  ―  (435)
Issuance of common stock  50  ―  50
Repurchase of common stock  (16)  ―  (16)
Common stock released from ESOP(1)  9  ―  9
Equity contributed by noncontrolling interest  ―  5  5
Distributions to noncontrolling interests  ―  (36)  (36)
Balance at September 30, 2012$ 10,082$ 414$ 10,496
(1)Employee Stock Ownership Plan

SHAREHOLDER’S EQUITY AND NONCONTROLLING INTEREST
(Dollars in millions)
  SDG&E Non-  
  Shareholder’s controlling Total
  Equity Interest Equity
Balance at December 31, 2012$ 4,222$ 76$ 4,298
Comprehensive income  294  15  309
Preferred stock dividends declared  (4)  ―  (4)
Distributions to noncontrolling interest  ―  (12)  (12)
Call premium on preferred stock  (3)  ―  (3)
Balance at September 30, 2013$ 4,509$ 79$ 4,588
Balance at December 31, 2011$ 3,739$ 102$ 3,841
Comprehensive income  378  10  388
Preferred stock dividends declared  (4)  ―  (4)
Distributions to noncontrolling interest  ―  (22)  (22)
Balance at September 30, 2012$ 4,113$ 90$ 4,203
Amounts Due To and From Affiliates at SDG&E and SoCalGas Table
AMOUNTS DUE TO AND FROM AFFILIATES AT SDG&E AND SOCALGAS
(Dollars in millions)
  September 30, December 31,
 2013 2012
SDG&E     
Current:     
Due from SoCalGas$ ― $ 37
Due from various affiliates  1   2
 $ 1 $ 39
       
Due to Sempra Energy$ 11 $ 19
Due to SoCalGas  2   ―
 $ 13 $ 19
       
Income taxes due (to) from Sempra Energy(1)$ (2) $ 12
      
SoCalGas     
Current:     
Due from Sempra Energy$ 12 $ 24
Due from SDG&E  2   ―
  $ 14 $ 24
      
Due to SDG&E$ ― $ 37
Due to affiliate  20   ―
 $ 20 $ 37
       
Income taxes due from Sempra Energy(1)$ 130 $ 99
(1)SDG&E and SoCalGas are included in the consolidated income tax return of Sempra Energy and are allocated income tax expense from Sempra Energy in an amount equal to that which would result from the companies’ having always filed a separate return.
Revenues From Unconsolidated Affiliates at SDG&E and SoCalGas Table
REVENUES FROM UNCONSOLIDATED AFFILIATES AT SDG&E AND SOCALGAS    
(Dollars in millions)    
      
 Three months ended September 30, Nine months ended September 30,
 20132012 2013 2012
SDG&E$ 3$ 2$ 8$ 6
SoCalGas  17  17  48  48
Other Income and Expense Table
OTHER INCOME, NET    
(Dollars in millions)    
  Three months ended September 30,Nine months ended September 30,
  20132012 2013 2012
Sempra Energy Consolidated:        
Allowance for equity funds used during construction$ 14$ 13$ 44$ 80
Investment (losses) gains(1)  (6)  17  16  27
Gains on interest rate and foreign exchange instruments, net  4  1  17  11
Regulatory interest, net(2)  1  ―  3  1
Sundry, net  3  13  (1)  18
Total$ 16$ 44$ 79$ 137
SDG&E:        
Allowance for equity funds used during construction$ 10$ 6$ 30$ 61
Regulatory interest, net(2)  1  ―  3  1
Sundry, net  (1)  (1)  (3)  (3)
Total$ 10$ 5$ 30$ 59
SoCalGas:        
Allowance for equity funds used during construction$ 4$ 7$ 14$ 19
Sundry, net  (2)  (1)  (5)  (5)
Total $ 2$ 6$ 9$ 14
(1)Represents investment (losses) gains on dedicated assets in support of our executive retirement and deferred compensation plans. These amounts are partially offset by corresponding changes in compensation expense related to the plans. 
(2)Interest on regulatory balancing accounts.        
Income Tax Expense and Effective Income Tax Rates Table
INCOME TAX EXPENSE AND EFFECTIVE INCOME TAX RATES
(Dollars in millions)
   Three months ended September 30,
  2013 2012
     Effective     Effective 
   Income Tax  Income  Income Tax   Income 
   Expense Tax Rate  Expense Tax Rate 
Sempra Energy Consolidated$ 117  27%$ 49  15%
SDG&E  84  38   38  17 
SoCalGas  38  27   37  34 
   Nine months ended September 30,
  2013 2012
     Effective     Effective 
   Income Tax  Income  Income Tax   Income 
   Expense Tax Rate  Expense Tax Rate 
Sempra Energy Consolidated$ 327  30%$ 48  8%
SDG&E  147  33   151  27 
SoCalGas  107  29   105  35 
Variable Interest Entity Table
AMOUNTS ASSOCIATED WITH OTAY MESA VIE
(Dollars in millions)
 Three months ended September 30,Nine months ended September 30,
 2013201220132012
         
Operating revenues         
Electric$ (4)$ ―$ ―$ ―
Natural gas   ―  ―  ―  ―
Total operating revenues  (4)  ―  ―  ―
Operating expenses        
Cost of electric fuel and purchased power  (27)  (26)  (65)  (66)
Operation and maintenance  7  4  33  15
Depreciation and amortization  7  7  20  19
Total operating expenses  (13)  (15)  (12)  (32)
Operating income  9  15  12  32
Other loss, net  ―  ―  ―  (1)
Interest expense  (4)  (3)  (11)  (8)
Income before income taxes/Net income  5  12  1  23
Earnings attributable to noncontrolling interest  (5)  (12)  (1)  (23)
Earnings$ ―$ ―$ ―$ ―
Ownership Interests Held By Others Table
OTHER NONCONTROLLING INTERESTS
(Dollars in millions)  
  Percent Ownership Held by Others  September 30, 2013 December 31, 2012
SDG&E:      
Otay Mesa VIE100%$ 79$ 76
Sempra South American Utilities:      
Chilquinta Energía subsidiaries(1)24.4 – 43.4   27  29
Luz del Sur20.2   222  236
Tecsur9.8   3  4
Sempra Mexico:      
IEnova, S.A.B. de C.V.18.9   457  ―
Sempra Natural Gas:      
Bay Gas Storage, Ltd.9.1   21  20
Liberty Gas Storage, LLC25.0   15  15
Southern Gas Transmission Company49.0   1  1
Total Sempra Energy  $ 825$ 381
(1)Chilquinta Energía has four subsidiaries with noncontrolling interests held by others. Percentage range reflects the highest and lowest ownership percentages amongst these subsidiaries.
Inventory Table
INVENTORY BALANCES
(Dollars in millions)
  Natural GasLiquefied Natural GasMaterials and SuppliesTotal
  September 30, 2013December 31, 2012September 30, 2013December 31, 2012September 30, 2013December 31, 2012September 30, 2013December 31, 2012
SDG&E$ 5$ 3$ ―$ ―$ 73$ 79$ 78$ 82
SoCalGas  150  128  ―  ―  27  23  177  151
Sempra South American                
Utilities  ―  ―  ―  ―  43  34  43  34
Sempra Mexico  ―  ―  3  8  16  8  19  16
Sempra Renewables  ―  ―  ―  ―  2  3  2  3
Sempra Natural Gas  133  109  5  8  6  5  144  122
Sempra Energy                
Consolidated$ 288$ 240$ 8$ 16$ 167$ 152$ 463$ 408
  
Asset Retirement Obligations Table
CHANGES IN ASSET RETIREMENT OBLIGATIONS
(Dollars in millions)
  Sempra Energy      
  Consolidated SDG&E SoCalGas
  20132012 20132012 20132012
Balance at January 1(1)$ 2,056$ 1,925 $ 741$ 698 $ 1,253$ 1,175
Accretion expense  74  69   35  31   37  36
Liabilities incurred  4  15   ―  ―   ―  ―
Payments  (1)  (1)   ―  ―   ―  ―
Revisions, GRC-related(2)  (135)  (8)   (30)  ―   (105)  ―
Revisions, other(3)  181  ―   207  ―   ―  ―
Balance at September 30(1)$ 2,179$ 2,000 $ 953$ 729 $ 1,185$ 1,211
(1)The current portions of the obligations are included in Other Current Liabilities on the Condensed Consolidated Balance Sheets.
(2)The decreases in asset retirement obligations in 2013 at SDG&E and SoCalGas are due to revised estimates related to the 2012 General Rate Case (GRC) that received final approval in May 2013. At SDG&E, these revisions included increases in asset service lives ranging from 2 percent to 7 percent, and lower estimated cost of removal. At SoCalGas, the decrease includes increases in asset service lives ranging from 4 percent to 6 percent, partially offset by a higher estimated cost of removal.
(3)The increase in asset retirement obligations in 2013 at SDG&E is due to revised estimates recorded in the third quarter of 2013 related to the early decommissioning of SONGS Units 2 and 3 (see Note 9).