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DEBT AND CREDIT FACILITIES - UNCOMMITTED LETTERS OF CREDIT (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Line of Credit Facility [Line Items] |
Uncommitted letters of credit outstanding | $ 512
Letters of credit outstanding |
Line of Credit Facility [Line Items] |
Uncommitted letters of credit outstanding | 512
Letters of credit outstanding | SDG&E |
Line of Credit Facility [Line Items] |
Uncommitted letters of credit outstanding | 25
Letters of credit outstanding | SoCalGas |
Line of Credit Facility [Line Items] |
Uncommitted letters of credit outstanding | 20
Letters of credit outstanding | Other Sempra |
Line of Credit Facility [Line Items] |
Uncommitted letters of credit outstanding | $ 467

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=sre_SanDiegoGasAndElectricCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=sre_SouthernCaliforniaGasCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=sre_OtherSempraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |