v3.8.0.1

DERIVATIVE FINANCIAL INSTRUMENTS - DERIVATIVE NOTIONALS (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Cross currency swaps [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional amount of derivative | $ 306 | $ 408
Cross currency swaps [Member] | Minimum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2018 | Dec. 31, 2018
Cross currency swaps [Member] | Maximum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2023 | Dec. 31, 2023
Other foreign currency derivatives [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional amount of derivative | $ 975 | $ 345
Other foreign currency derivatives [Member] | Minimum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2018 | Dec. 31, 2018
Other foreign currency derivatives [Member] | Maximum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2019 | Dec. 31, 2019
Cash Flow Hedging [Member] | Interest rate instruments [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional amount of derivative | $ 845 | $ 861
Cash Flow Hedging [Member] | Interest rate instruments [Member] | Minimum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2018 | Dec. 31, 2018
Cash Flow Hedging [Member] | Interest rate instruments [Member] | Maximum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2032 | Dec. 31, 2032
San Diego Gas and Electric Company [Member] | Cash Flow Hedging [Member] | Interest rate instruments [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional amount of derivative | $ 292 | $ 295
San Diego Gas and Electric Company [Member] | Cash Flow Hedging [Member] | Interest rate instruments [Member] | Minimum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2018 | Dec. 31, 2018
San Diego Gas and Electric Company [Member] | Cash Flow Hedging [Member] | Interest rate instruments [Member] | Maximum [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Maturity date | Dec. 31, 2019 | Dec. 31, 2019

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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959 + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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