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DEBT AND CREDIT FACILITIES - SUMMARY OF LINES OF CREDIT (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2019 USD ($) lender | Dec. 31, 2018 USD ($) lender
Sempra Energy [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | $ 1,250,000,000
Available unused credit |  | 1,250,000,000
Committed lines of credit, capacity for issuance of letters of credit |  | $ 400,000,000
Committed lines of credit, maximum ratio of indebtedness to total capitalization |  | 65.00%
Sempra Energy [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | $ 0
Sempra Global [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 3,185,000,000
Available unused credit |  | 2,516,000,000
Sempra Global [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | (669,000,000)
San Diego Gas and Electric Company [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 750,000,000
Adjustment for combined limit |  | (6,000,000)
Available unused credit |  | $ 453,000,000
Committed lines of credit, maximum ratio of indebtedness to total capitalization |  | 65.00%
San Diego Gas and Electric Company [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | $ (291,000,000)
Southern California Gas Company [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 750,000,000
Adjustment for combined limit |  | (41,000,000)
Available unused credit |  | $ 453,000,000
Committed lines of credit, maximum ratio of indebtedness to total capitalization |  | 65.00%
Southern California Gas Company [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | $ (256,000,000)
California Utilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 1,000,000,000
Adjustment for combined limit |  | 47,000,000
Available unused credit |  | 453,000,000
Reduction in borrowing limit |  | (500,000,000)
Available unused credit limit reduction |  | (453,000,000)
Committed lines of credit, capacity for issuance of letters of credit |  | 250,000,000
California Utilities [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | (547,000,000)
Reduction in borrowing limit |  | 0
Sempra U.S. Businesses [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 5,435,000,000
Available unused credit |  | $ 4,219,000,000
Committed lines of credit, term |  | 5 years
Committed lines of credit, number of lenders | lender |  | 21
Lender maximum share of debt percent |  | 7.00%
Sempra U.S. Businesses [Member] | Commercial paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit outstanding |  | $ (1,216,000,000)
Sempra South American Utilities [Member] | Peru [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 534,000,000
Line of credit outstanding |  | (182,000,000)
Available unused credit |  | $ 352,000,000
Committed lines of credit, maximum debt to equity ratio |  | 170.00%
Committed lines of credit, bank guarantee |  | $ 18,000,000
Sempra South American Utilities [Member] | Chile [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 115,000,000
Line of credit outstanding |  | 0
Available unused credit |  | 115,000,000
Sempra Mexico [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | 1,170,000,000
Line of credit outstanding |  | (808,000,000)
Available unused credit |  | $ 362,000,000
Committed lines of credit, term |  | 5 years
Committed lines of credit, number of lenders | lender |  | 8
South American Utilities and Mexico Combined [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility |  | $ 1,819,000,000
Line of credit outstanding |  | (990,000,000)
Available unused credit |  | $ 829,000,000
Subsequent Event [Member] | Sempra Mexico [Member] |  |
Line of Credit Facility [Line Items] |  |
Total facility | $ 1,500,000,000 |
Committed lines of credit, number of lenders | lender | 10 |

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- Definition An agreement (contract) that requires the guarantor to make payments to the guaranteed party based on another entity's failure to pay specified obligations, such as debt, to a lender. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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