v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | $ 26 | $ 6
Due from unconsolidated affiliates - noncurrent | 201 | 186
Due to unconsolidated affiliates - current | $ (11) | (14)
Joint venture with PEMEX [Member] |  |
Related Party Transaction [Line Items] |  |
Related party transaction rate | 5.27% |
ESJ joint venture [Member] |  |
Related Party Transaction [Line Items] |  |
Related party transaction rate | 7.15% |
Sempra LNG and Midstream [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | $ 0 | 3
LIBOR [Member] | Joint venture with PEMEX [Member] |  |
Related Party Transaction [Line Items] |  |
Variable percentage rate | 450.00% |
LIBOR [Member] | ESJ joint venture [Member] |  |
Related Party Transaction [Line Items] |  |
Variable percentage rate | 637.50% |
Sempra South American Utilities [Member] | Eletrans [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | $ 96 | 72
Sempra South American Utilities [Member] | Other related parties [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 1 | 0
Sempra Mexico [Member] | PEMEX Three year loan A [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 2 | 3
Sempra Mexico [Member] | PEMEX Four year loan A [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 44 | 42
Sempra Mexico [Member] | PEMEX Four year loan B [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 35 | 34
Sempra Mexico [Member] | PEMEX Four year loan C [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 9 | 8
Sempra Mexico [Member] | ESJ joint venture [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - noncurrent | 14 | 24
Parent Company [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 73 | 62
Due from unconsolidated affiliates - noncurrent | 0 | 457
Due to unconsolidated affiliates - current | (359) | (332)
San Diego Gas and Electric Company [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 4 | 1
Due to unconsolidated affiliates - current | (15) | (55)
San Diego Gas and Electric Company [Member] | Due to/from Sempra Energy [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 3 | 0
Due to unconsolidated affiliates - current | 0 | (34)
Income taxes due from (to) Sempra Energy | 159 | 28
San Diego Gas and Electric Company [Member] | Due to/from Various Affiliates |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 1 | 1
Due to unconsolidated affiliates - current | (7) | (8)
San Diego Gas and Electric Company [Member] | Due to/from SoCalGas |  |
Related Party Transaction [Line Items] |  |
Due to unconsolidated affiliates - current | (8) | (13)
Southern California Gas Company [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 8 | 48
Due to unconsolidated affiliates - current | (28) | 0
Southern California Gas Company [Member] | Due to/from Sempra Energy [Member] |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | 0 | 35
Due to unconsolidated affiliates - current | (28) | 0
Income taxes due from (to) Sempra Energy | $ 5 | $ 1
Related party transaction rate | 0.68% | 0.11%
Loan to unconsolidated affiliate, principal | $ 31 | $ 50
Southern California Gas Company [Member] | Due to/from SDG&E |  |
Related Party Transaction [Line Items] |  |
Due from unconsolidated affiliates - current | $ 8 | $ 13

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