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EMPLOYEE BENEFIT PLANS PART 5 (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets $ 5 [1] $ 4 [2]
Transfers Payable, Excluded From Fair Value of Defined Benefit Plan Assets 37 [1]  
Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 11 9
Transfers Receivable, Excluded From Fair Value of Defined Benefit Plan Assets 37  
Other Postretirement Benefits
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 4 3
Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 1  
Transfers Payable, Excluded From Fair Value of Defined Benefit Plan Assets 6  
Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 3 3
Transfers Receivable, Excluded From Fair Value of Defined Benefit Plan Assets 6  
Equity Securities, Broad Market Fund [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 220 316
Equity Securities, Broad Market Fund [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Broad Market Fund [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 220 316
Equity Securities, Broad Market Fund [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Foreign Preferred [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 2
Equity Securities, Foreign Preferred [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 4
Equity Securities, Foreign Preferred [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
Equity Securities, Foreign Preferred [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents   1
Equity Securities, Foreign Preferred [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 2
Equity Securities, Foreign Preferred [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 4
Equity Securities, Foreign Preferred [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
Equity Securities, Foreign Preferred [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents   1
Equity Securities, Foreign Preferred [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Foreign Preferred [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Foreign Preferred [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
Equity Securities, Foreign Preferred [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents   0
Equity Securities, Foreign Preferred [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Foreign Preferred [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Foreign Preferred [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
Equity Securities, Foreign Preferred [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents   0
Equity Securities, Registered Investment Company [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 44 6
Equity Securities, Registered Investment Company [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 89 12
Equity Securities, Registered Investment Company [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 11 2
Equity Securities, Registered Investment Company [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 43 32
Equity Securities, Registered Investment Company [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 43 11
Equity Securities, Registered Investment Company [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 4
Equity Securities, Registered Investment Company [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 44 6
Equity Securities, Registered Investment Company [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 89 12
Equity Securities, Registered Investment Company [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 11 2
Equity Securities, Registered Investment Company [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 43 32
Equity Securities, Registered Investment Company [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 43 11
Equity Securities, Registered Investment Company [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 3
Equity Securities, Registered Investment Company [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 1
Equity Securities, Registered Investment Company [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities, Registered Investment Company [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Treasury Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2  
US Treasury Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4  
US Treasury Securities [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
US Treasury Securities [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
US Treasury Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2  
US Treasury Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4  
US Treasury Securities [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
US Treasury Securities [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
US Treasury Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Treasury Securities [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
US Government Agencies Debt Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 11 12
US Government Agencies Debt Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 21 24
US Government Agencies Debt Securities [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 3
US Government Agencies Debt Securities [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [3] 3 [3]
US Government Agencies Debt Securities [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 5
US Government Agencies Debt Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [3] 0 [3]
US Government Agencies Debt Securities [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 11 12
US Government Agencies Debt Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 21 24
US Government Agencies Debt Securities [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 3
US Government Agencies Debt Securities [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [3] 3 [3]
US Government Agencies Debt Securities [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 5
US Government Agencies Debt Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
US Government Agencies Debt Securities [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [3] 0 [3]
US Government Agencies Debt Securities [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Fixed Income, Registered Investment Company [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 12 12
Fixed Income, Registered Investment Company [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 1
Fixed Income, Registered Investment Company [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
Fixed Income, Registered Investment Company [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Fixed Income, Registered Investment Company [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Fixed Income, Registered Investment Company [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
Fixed Income, Registered Investment Company [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 12 12
Fixed Income, Registered Investment Company [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 1
Fixed Income, Registered Investment Company [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1  
Fixed Income, Registered Investment Company [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Fixed Income, Registered Investment Company [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Fixed Income, Registered Investment Company [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0  
Domestic Partnership Debt Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 [4]  
Domestic Partnership Debt Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [4]  
Domestic Partnership Debt Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4]  
Domestic Partnership Debt Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4]  
Domestic Partnership Debt Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 [4]  
Domestic Partnership Debt Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [4]  
Domestic Partnership Debt Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4]  
Domestic Partnership Debt Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4]  
Foreign Government Debt Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 22
Foreign Government Debt Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 51 44
Foreign Government Debt Securities [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 7 5
Foreign Government Debt Securities [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 2
Foreign Government Debt Securities [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 10 8
Foreign Government Debt Securities [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 1
Foreign Government Debt Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 22
Foreign Government Debt Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 51 44
Foreign Government Debt Securities [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 7 5
Foreign Government Debt Securities [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 2
Foreign Government Debt Securities [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 10 8
Foreign Government Debt Securities [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 1
Foreign Government Debt Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Government Debt Securities [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Domestic Corporate Debt Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 152 [4] 147 [4]
Domestic Corporate Debt Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 306 [4] 297 [4]
Domestic Corporate Debt Securities [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 38 [4] 37 [4]
Domestic Corporate Debt Securities [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 18 [4] 15 [4]
Domestic Corporate Debt Securities [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 60 [4] 57 [4]
Domestic Corporate Debt Securities [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [4] 2 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 152 [4] 147 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 306 [4] 297 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 38 [4] 37 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 18 [4] 15 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 60 [4] 57 [4]
Domestic Corporate Debt Securities [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [4] 2 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Domestic Corporate Debt Securities [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [4] 0 [4]
Foreign Corporate Debt Securities [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 55 52
Foreign Corporate Debt Securities [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 110 105
Foreign Corporate Debt Securities [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 13 13
Foreign Corporate Debt Securities [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 5
Foreign Corporate Debt Securities [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 22 20
Foreign Corporate Debt Securities [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 1
Foreign Corporate Debt Securities [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 55 52
Foreign Corporate Debt Securities [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 110 105
Foreign Corporate Debt Securities [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 13 13
Foreign Corporate Debt Securities [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 5
Foreign Corporate Debt Securities [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 22 20
Foreign Corporate Debt Securities [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 1
Foreign Corporate Debt Securities [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Foreign Corporate Debt Securities [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Debt Securities, Common Collective Trusts [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 [5] 8 [5]
Debt Securities, Common Collective Trusts [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 50 [5] 15 [5]
Debt Securities, Common Collective Trusts [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 5 [5] 2 [5]
Debt Securities, Common Collective Trusts [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [6] 1 [6]
Debt Securities, Common Collective Trusts [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 262 [6] 107 [6]
Debt Securities, Common Collective Trusts [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [6] 0 [6]
Debt Securities, Common Collective Trusts [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [6] 0 [6]
Debt Securities, Common Collective Trusts [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 [5] 8 [5]
Debt Securities, Common Collective Trusts [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 50 [5] 15 [5]
Debt Securities, Common Collective Trusts [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 5 [5] 2 [5]
Debt Securities, Common Collective Trusts [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [6] 1 [6]
Debt Securities, Common Collective Trusts [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 262 [6] 107 [6]
Debt Securities, Common Collective Trusts [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [5] 0 [5]
Debt Securities, Common Collective Trusts [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [6] 0 [6]
Debt Securities, Common Collective Trusts [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [6] 0 [6]
Private Equity Funds [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 [7] 6 [7]
Private Equity Funds [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 13 [7] 13 [7]
Private Equity Funds [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [7] 2 [7]
Private Equity Funds [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 [7] 1 [7]
Private Equity Funds [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [7] 2 [7]
Private Equity Funds [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [7] 0 [7]
Private Equity Funds [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 [7] 6 [7]
Private Equity Funds [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 13 [7] 13 [7]
Private Equity Funds [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [7] 2 [7]
Private Equity Funds [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 [7] 1 [7]
Private Equity Funds [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [7] 2 [7]
Total Investment Plan Assets [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 851 [1] 777 [2]
Total Investment Plan Assets [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1,710 [8] 1,572 [9]
Total Investment Plan Assets [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 151 [10] 126
Total Investment Plan Assets [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 839 [11] 729 [12]
Total Investment Plan Assets [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 576 [1] 530 [2]
Total Investment Plan Assets [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1,157 [8] 1,074 [9]
Total Investment Plan Assets [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 105 [10] 87
Total Investment Plan Assets [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 256 [11] 213 [12]
Total Investment Plan Assets [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 269 [1] 241 [2]
Total Investment Plan Assets [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 540 [8] 485 [9]
Total Investment Plan Assets [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 45 [10] 38
Total Investment Plan Assets [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 581 [11] 514 [12]
Total Investment Plan Assets [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 [1] 6 [2]
Total Investment Plan Assets [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 13 [8] 13 [9]
Total Investment Plan Assets [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1 [10] 1
Total Investment Plan Assets [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [11] 2 [12]
Total Other Sempra Energy Investment Plan Assets [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 211 [13] 195 [13]
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 1 1
Total Other Sempra Energy Investment Plan Assets [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 18 15
Total Other Sempra Energy Investment Plan Assets [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 143 [13] 133 [13]
Total Other Sempra Energy Investment Plan Assets [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 12 10
Total Other Sempra Energy Investment Plan Assets [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 66 [13] 60 [13]
Total Other Sempra Energy Investment Plan Assets [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 6 5
Total Other Sempra Energy Investment Plan Assets [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2 [13] 2 [13]
Total Other Sempra Energy Investment Plan Assets [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Total SE Consolidated [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 2,772 [14] 2,544 [14]
Cash And Cash Equivalents, Excluded From Fair Value of Defined Benefit Plan Assets 17 14
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Sempra Energy Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1,008 [15] 870 [12]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 1 | Total SE Consolidated [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 1,876 [14] 1,737 [14]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 1 | Sempra Energy Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 373 [15] 310 [12]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 2 | Total SE Consolidated [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 875 [14] 786 [14]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 2 | Sempra Energy Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 632 [15] 557 [12]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 3 | Total SE Consolidated [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 21 [14] 21 [14]
Total Sempra Energy Consolidated Investment Plan Assets [Member] | Level 3 | Sempra Energy Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 3 [15] 3 [12]
Equity Securities Domestic [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 317 [16] 307 [16]
Equity Securities Domestic [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 637 [16] 622 [16]
Equity Securities Domestic [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 79 [16] 77 [16]
Equity Securities Domestic [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 37 [16] 32 [16]
Equity Securities Domestic [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 128 [16] 118 [16]
Equity Securities Domestic [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 [16] 5 [16]
Equity Securities Domestic [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 317 [16] 307 [16]
Equity Securities Domestic [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 637 [16] 622 [16]
Equity Securities Domestic [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 79 [16] 77 [16]
Equity Securities Domestic [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 37 [16] 32 [16]
Equity Securities Domestic [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 128 [16] 118 [16]
Equity Securities Domestic [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 [16] 5 [16]
Equity Securities Domestic [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Domestic [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 [16] 0 [16]
Equity Securities Foreign [Member] | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 211 215
Equity Securities Foreign [Member] | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 423 436
Equity Securities Foreign [Member] | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 52 54
Equity Securities Foreign [Member] | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 23
Equity Securities Foreign [Member] | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 83 84
Equity Securities Foreign [Member] | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 1
Equity Securities Foreign [Member] | Level 1 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 211 215
Equity Securities Foreign [Member] | Level 1 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 423 436
Equity Securities Foreign [Member] | Level 1 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 52 54
Equity Securities Foreign [Member] | Level 1 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 25 23
Equity Securities Foreign [Member] | Level 1 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 83 84
Equity Securities Foreign [Member] | Level 1 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 4 1
Equity Securities Foreign [Member] | Level 2 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 2 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 2 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 2 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 2 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 2 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | Pension Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | Pension Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | Total Other SE [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | Other Postretirement Benefits | San Diego Gas and Electric Company and Subsidiary [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | Other Postretirement Benefits | Southern California Gas Company [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents 0 0
Equity Securities Foreign [Member] | Level 3 | All Other Postretirement Benefit Plans [Member]
   
Defined Benefit Plan, Fair Value Of Plan Assets [Line Items]    
Defined Benefit Plan, Fair Value Of Plan Assets, Excluding Cash And Cash Equivalents $ 0 $ 0
[1] Excludes cash and cash equivalents of $5 million and transfers payable to other plans of $37 million.
[2] Excludes cash and cash equivalents of $4 million.
[3] Bonds of California municipalities held in SDG&E PBOP plan trusts.
[4] Bonds of U.S. issuers from diverse industries, primarily investment-grade.
[5] Investments in common/collective trusts held in Sempra Energy’s Pension Master Trust.
[6] Investments in common/collective trusts held in PBOP plan VEBA trusts.
[7] Investments in venture capital and real estate funds.
[8] Excludes cash and cash equivalents of $11 million and transfers receivable from other plans of $37 million.
[9] Excludes cash and cash equivalents of $9 million.
[10] Excludes cash and cash equivalents of $1 million, all of which is held in SDG&E PBOP plan trusts, and transfers payable to other plans of $6 million.
[11] Excludes cash and cash equivalents of $3 million, all of which is held in SoCalGas PBOP plan trusts, and transfers receivable from other plans of $6 million.
[12] Excludes cash and cash equivalents of $3 million, all of which is held in SoCalGas PBOP plan trusts.
[13] Excludes cash and cash equivalents of $1 million at each of December 31, 2013 and 2012.
[14] Excludes cash and cash equivalents of $17 million and $14 million at December 31, 2013 and 2012, respectively.
[15] Excludes cash and cash equivalents of $4 million, $3 million and $1 million of which is held in SoCalGas and SDG&E PBOP plan trusts, respectively.
[16] Investments in common stock of domestic corporations.