Gains and Losses on NDTs Investment, Policy [Policy Text Block] Receivables (payables), net Accounts Payable [Member] Schedule of Nuclear Decommissioning Trusts Investments Debt Securities, Available-for-Sale [Table Text Block] Expected return on assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Other Affiliates Other Affiliates [Member] Associated offsetting cash collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset 6.43% Senior Secured Notes Due June 2048 6.43% Senior Secured Notes Due June 2048 [Member] 6.43% Senior Secured Notes Due June 2048 Consolidating adjustments and Parent and other Corporate And Eliminations [Member] Corporate And Eliminations Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number 2024 GRC retroactive impacts Regulatory Balancing Accounts, 2024 General Rate Case Retroactive Impact [Member] Regulatory Balancing Accounts, 2024 General Rate Case Retroactive Impact Assets held for sale Cash And Cash Equivalent, Held-For-Sale Cash And Cash Equivalent, Held-For-Sale Tabular List, Table Tabular List [Table Text Block] Sempra Texas Intermediate Holding Company LLC Sempra Texas Intermediate Holding Company LLC [Member] Sempra Texas Intermediate Holding Company LLC [Member] GENERAL INFORMATION AND OTHER FINANCIAL DATA Additional Financial Information Disclosure [Text Block] General Rate Case Plan [Axis] General Rate Case Plan [Axis] General Rate Case Plan [Axis] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Fair Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Total debt securities Debt Securities [Member] Maximum exposure under guarantor obligations Guarantor Obligations, Maximum Exposure, Undiscounted Measurement Basis [Axis] Measurement Basis [Axis] TotalEnergies SE TotalEnergies SE [Member] TotalEnergies SE Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] REGULATORY MATTERS SAN ONOFRE NUCLEAR GENERATING STATION Public Utilities Disclosure [Text Block] REVENUES Revenue from Contract with Customer [Text Block] Cost of sales Costs Of Sales, Net Commodity Costs Costs Of Sales, Net Commodity Costs Number of distribution zones Number Of Natural Gas Distribution Zones Number Of Natural Gas Distribution Zones Contract with Customer, Asset and Liability [Table] Contract with Customer, Asset and Liability [Table] Contract with Customer, Asset and Liability [Table] Corporate Joint Venture Corporate Joint Venture [Member] SI Partners and IEnova Committed Line Of Credit Due September 2026 SI Partners and IEnova Committed Line Of Credit Due September 2026 [Member] SI Partners and IEnova Committed Line Of Credit Due September 2026 Associated offsetting cash collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Continuing Operations Continuing Operations [Member] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Gross unrealized gains Securities Held in Nuclear Decommissioning Trusts, Accumulated Gross Unrealized Gain, before Tax Securities Held in Nuclear Decommissioning Trusts, Accumulated Gross Unrealized Gain, before Tax Port Arthur LNG II Port Arthur LNG II [Member] Port Arthur LNG II Materials and supplies Supplies [Member] Total assets held for sale Disposal Group, Including Discontinued Operation, Assets SI Partners and IEnova Committed Line Of Credit Due August 2028 SI Partners and IEnova Committed Line Of Credit Due August 2028 [Member] SI Partners and IEnova Committed Line Of Credit Due August 2028 Disposal group, derivative liability Disposal Group, Including Discontinued Operation, Derivative Liability Disposal Group, Including Discontinued Operation, Derivative Liability Adjustment to Compensation, Amount Adjustment to Compensation Amount Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Pension Pension Plan [Member] Decrease in short-term debt, net Decrease in short-term debt, net Proceeds from (Repayments of) Short-Term Debt, Maturing in Three Months or Less Principles of Consolidation Consolidation, Policy [Policy Text Block] Advances from unconsolidated affiliates Proceeds from Contributions from Affiliates Depreciation and amortization Depreciation and amortization Utilities Operating Expense, Depreciation and Amortization Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Employee Stock Option Share-Based Payment Arrangement, Option [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Cash consideration to be received at closing Disposal Group, Including Discontinued Operation, Cash Consideration Disposal Group, Including Discontinued Operation, Cash Consideration Total shareholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Maximum adjustment EBITDA allowed Debt Instrument, Covenant, Maximum Required Adjustment EBITDA Debt Instrument, Covenant, Maximum Required Adjustment EBITDA Common stock, shares authorized (in shares) Common Stock, Shares Authorized IOU expected aggregate reimbursements, LA wildfires Wildfire Fund, Participating Investor Owned Utilities, Expected Aggregate Reimbursements, LA Wildfires Wildfire Fund, Participating Investor Owned Utilities, Expected Aggregate Reimbursements, LA Wildfires Number of complaints Loss Contingency, Number Of Complaints Loss Contingency, Number Of Complaints Note Receivable, Stated Rate, Period Two Note Receivable, Stated Rate, Period Two [Member] Note Receivable, Stated Rate, Period Two Increase in unrecorded unconditional purchase obligation Increase (Decrease) in Unrecorded Unconditional Purchase Obligation Increase (Decrease) in Unrecorded Unconditional Purchase Obligation Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] LIABILITIES, CONTINGENTLY REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] SEMPRA - DIVESTITURES Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Number of purchase power contracts to be commenced in year one Lessee, Number Of Purchased-Power Contracts, To Be Commenced, Year One Lessee, Number Of Purchased-Power Contracts, To Be Commenced, Year One Maximum Maximum [Member] Property, plant and equipment: Property, Plant and Equipment, Net [Abstract] Net income, Non-controlling interest (after tax) NCI held by TTI Earnings attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Equity earnings Income (Loss) From Equity Method Investments [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Change in unrealized gains (losses) relating to instruments still held at March 31 Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) Debt Instrument [Line Items] Debt Instrument [Line Items] Energy-related businesses Natural Gas and Electricity, US Regulated [Member] Natural Gas and Electricity, US Regulated [Member] Authorized weighting Authorized Weighting [Member] Authorized Weighting Off-Balance-Sheet Credit Exposures Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Comprehensive income (loss), CRNCI (after tax) Comprehensive Income (Loss), Net Of Tax, Attributable To Contingently Redeemable Noncontrolling Interest Comprehensive Income (Loss), Net Of Tax, Attributable To Contingently Redeemable Noncontrolling Interest Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] KKR Pinnacle KKR Pinnacle [Member] KKR Pinnacle Total other comprehensive income (loss), NCI (after tax) Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Nonredeemable Noncontrolling Interest Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Nonredeemable Noncontrolling Interest Pretax income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Asset retirement obligations Disposal Group, Including Discontinued Operation, Asset Retirement Obligations Disposal Group, Including Discontinued Operation, Asset Retirement Obligations Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Legal Proceedings Legal Costs, Policy [Policy Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Segment revenues Operating Segments [Member] Purchased-Power Contracts Purchased-Power Contracts [Member] Purchased-Power Contracts [Member] Schedule Of Income Tax Expense And Effective Income Tax Rates [Table] Schedule Of Income Tax Expense And Effective Income Tax Rates [Table] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Distributions to Noncontrolling Interests Payments to Noncontrolling Interests Letters of credit outstanding Letter of Credit [Member] Jointly Owned Utility Plant Interests [Line Items] Jointly Owned Utility Plant Interests [Line Items] 2024 GRC - 2024 Requirement 2024 GRC - 2024 Requirement [Member] 2024 GRC - 2024 Requirement Number of forward sale agreements Number Of Forward Sale Agreements Number Of Forward Sale Agreements Document Fiscal Period Focus Document Fiscal Period Focus Foreign currency translation adjustments, pretax amount, attributable to parent Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent Short-term investments held in Rabbi Trust Short Term Investments Held In Trusts, Fair Value Disclosure Short Term Investments Held In Trusts, Fair Value Disclosure Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Weighted requested return on rate base (as a percent) Cost Of Capital Requested Return On Rate Base Cost Of Capital Requested Return On Rate Base Award Timing Method Award Timing Method [Text Block] Litigation Case [Domain] Litigation Case [Domain] Award Type [Axis] Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Foreign currency translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Financial instruments, CRNCI (after tax) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), After Reclassification And Tax, Attributable To Contingently Redeemable Noncontrolling Interest Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), After Reclassification And Tax, Attributable To Contingently Redeemable Noncontrolling Interest Utility Plant [Domain] Utility Plant [Domain] Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol Capitalized financing costs Capitalized Interest Costs, Including Allowance for Funds Used During Construction Ecogas Ecogas [Member] Ecogas Capitalized Financing Costs Disclosure [Line Items] Schedule of Capitalization [Line Items] Deferred credits and other liabilities: Deferred Credits and Other Liabilities [Abstract] Revenue Requirement, Period [Axis] Revenue Requirement, Period [Axis] Revenue Requirement, Period Long-term debt Disposal Group, Including Discontinued Operation, Debt, Noncurrent Disposal Group, Including Discontinued Operation, Debt, Noncurrent Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Schedule Of Net Regulatory Assets (Liabilities) [Line Items] Schedule Of Net Regulatory Assets (Liabilities) [Line Items] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Ownership percentage in consolidated entity (in percentage) Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Credit Losses Credit Loss, Financial Instrument [Policy Text Block] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Return on rate base Return on Rate Base [Member] Return on Rate Base Requested review and recovery of wildfire mitigation plan General Rate Case, Requested Review And Recovery Of Wildfire Mitigation Plan Costs General Rate Case, Requested Review And Recovery Of Wildfire Mitigation Plan Partial termination, percentage reduction in active participants Defined Benefit Plans, Partial Termination, Reduction In Active Participants, Percent Defined Benefit Plans, Partial Termination, Reduction In Active Participants, Percent Regulatory Agency [Axis] Regulatory Agency [Axis] Entity Emerging Growth Company Entity Emerging Growth Company Post-closing distribution, true-up payment to be received Post-Closing Distribution, True-Up Payment To Be Received Post-Closing Distribution, True-Up Payment To Be Received Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Gains on foreign exchange instruments, net Pretax [(loss) gain] on derivatives recognized in earnings Derivative, Gain (Loss) on Derivative, Net Distributions to noncontrolling interests Payments of Distributions to Affiliates Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding 2024 General Rate Case 2024 General Rate Case [Member] 2024 General Rate Case Provisions for expected credit losses Accounts Receivable, Credit Loss Expense (Reversal) 5.25% Note Due March 2036 5.25% Note Due March 2036 [Member] 5.25% Note Due March 2036 Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Proceeds from related party debt Proceeds from Related Party Debt Fixed-price contracts and other derivatives Deferred Derivative Gain (Loss) [Member] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Guarantees, carrying value Guarantor Obligations, Current Carrying Value Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Total other comprehensive income (loss), CRNCI (after tax) Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Contingently Redeemable Noncontrolling Interest Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Contingently Redeemable Noncontrolling Interest Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Income tax expense Net income, income tax (expense) benefit Income tax expense (benefit) Income Tax Expense (Benefit) Variable percentage rate (in percent) Debt Instrument, Basis Spread on Variable Rate Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Purchases of nuclear decommissioning and other trust assets Purchases of nuclear decommissioning trust assets Payments to Acquire Investments to be Held in Decommissioning Trust Fund Document Information [Line Items] Document Information [Line Items] Operating Segments After Reconciling Items And Eliminations Operating Segments After Reconciling Items And Eliminations [Member] Operating Segments After Reconciling Items And Eliminations Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Derivatives designated as hedging instruments: Designated as Hedging Instrument [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Revenue Requirement, Period One Revenue Requirement, Period One [Member] Revenue Requirement, Period One Hedging Relationship [Axis] Hedging Relationship [Axis] Pretax gain (loss) reclassified from AOCI into earnings Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Service-based RSUs Restricted Stock Units (RSUs), Service-based [Member] Restricted Stock Units (RSUs), Service-based [Member] IEnova IEnova [Member] IEnova Discontinued Operations, Held-for-Sale Discontinued Operations, Held-for-Sale [Member] Decommissioning costs Decommissioning Liability, Noncurrent Subsidiary or Equity Method Investee, Sale of Stock [Table] Subsidiary or Equity Method Investee, Sale of Stock [Table] Discontinued Operations and Disposal Groups [Abstract] SDG&E San Diego Gas and Electric Company [Member] Credit adjustment spread Debt Instrument, Credit Adjustment Spread Debt Instrument, Credit Adjustment Spread Flow-Through Rate-Making Treatment Tax Regulatory Income Taxes, Policy [Policy Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Sempra California Sempra California [Member] Sempra California Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Financial instruments, income tax (expense) benefit, attributable to parent Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent Less accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Pension and PBOP plan obligations Pension and Other Postretirement Plans Costs [Member] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Preferred dividends Preferred Stock Dividends, Income Statement Impact Class of Treasury Stock [Table] Class of Treasury Stock [Table] Requested recovery amount Public Utilities, Requested Rate Increase (Decrease), Amount Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Other balancing accounts Regulatory Balancing Accounts, Other [Member] Regulatory Balancing Accounts, Other [Member] Comprehensive income, income tax (expense) benefit, attributable to parent Comprehensive Income (Loss), Tax, Attributable to Parent Comprehensive Income (Loss), Tax, Attributable to Parent Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Term of debt instrument (in years) Debt Instrument, Term Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Subsequent Event Subsequent Event [Member] Restricted cash, noncurrent Disposal Group, Including Discontinued Operation, Restricted Cash, Noncurrent Disposal Group, Including Discontinued Operation, Restricted Cash, Noncurrent Equity Method Investment, Nonconsolidated Investee or Group of Investees Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Thereafter Unrecorded Unconditional Purchase Obligation, To Be Paid, After Year Four Unrecorded Unconditional Purchase Obligation, To Be Paid, After Year Four Amortization of: Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization [Abstract] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Number of project owners sending direct proceeds Long Term Debt, Number Of Project Owners In Financing Arrangement, Direct Proceeds Long Term Debt, Number Of Project Owners In Financing Arrangement, Direct Proceeds Derivative liability, measurement inputs Derivative Liability, Measurement Input Contract with Customer, Asset [Table] Contract with Customer, Asset [Table] Contract with Customer, Asset [Table] Derivative liability, subject to master netting arrangement, before offset Derivative Liability, Subject to Master Netting Arrangement, before Offset Expected credit losses included in liabilities held for sale Disposal Group, Including Discontinued Operation, Off-Balance Sheet, Credit Loss, Liability Disposal Group, Including Discontinued Operation, Off-Balance Sheet, Credit Loss, Liability Capital Structure Category [Axis] Capital Structure Category [Axis] Equity Components [Axis] Equity Components [Axis] Accounts receivable – trade, net Accounts Receivable, Trade, Net [Member] Accounts Receivable, Trade, Net Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Accounts receivable – trade, net Trade Accounts Receivable [Member] Number of reportable segments Number of Reportable Segments Revenues: Energy- related businesses Sales [Member] Guaranteed funding amount (in percent) Noncontrolling Interest, Guaranteed Funding Commitment, Percentage Noncontrolling Interest, Guaranteed Funding Commitment, Percentage Regulatory liabilities Regulatory Liability, Noncurrent Entity Address, State or Province Entity Address, State or Province Payments on finance leases Payments on finance leases Finance Lease, Principal Payments Common stock dividends Dividends, Common Stock Comprehensive income, pretax amount, attributable to parent Comprehensive Income (Loss), Before Tax, Attributable to Parent Comprehensive Income (Loss), Before Tax, Attributable to Parent Funding commitment (in percent) Noncontrolling Interest, Funding Commitment, Percentage Noncontrolling Interest, Funding Commitment, Percentage Total current liabilities Liabilities, Current FERC requirement to maintain common equity ratio at or above, base (as a percent) FERC Requirement To Maintain Common Equity Ratio At Or Above, Base FERC Requirement To Maintain Common Equity Ratio At Or Above, Base Nuclear decommissioning trust authorized withdrawal amount Authorized Recovery Amount, Nuclear Decommissioning Trust Funding Authorized Recovery Amount, Nuclear Decommissioning Trust Funding. Inventory [Axis] Inventory [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-Term Purchase Commitment, Category of Item Purchased [Domain] Individual: Individual [Axis] Property, plant and equipment Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Approved return on equity (as a percent) Public Utilities, Approved Return on Equity, Percentage Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Interbank Equilibrium Interest Rate Interbank Equilibrium Interest Rate [Member] Interbank Equilibrium Interest Rate Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Increase in finance lease obligations capitalized to PP&E Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Common dividends paid Payments of Ordinary Dividends, Common Stock Receivable With Imputed Interest, Term Receivable With Imputed Interest, Term Receivable With Imputed Interest, Term Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Derivative liability, Additional cash collateral for commodity contracts not subject to rate recovery Derivative Liability, Additional Margin Posted For Commodity Contracts Not Subject to Rate Recovery Derivative Liability, Additional Margin Posted For Commodity Contracts Not Subject to Rate Recovery Due from unconsolidated affiliates – current Due From Related Parties, Current [Member] Due From Related Parties, Current [Member] Project [Domain] Project [Domain] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Natural gas Natural Gas, US Regulated [Member] Borrowings repaid Repayments of Long-Term Debt Ownership interest (as a percent) Subsidiary, Ownership Percentage, Noncontrolling Owner Entity Interactive Data Current Entity Interactive Data Current Due to/from Sempra Energy Majority Shareholder [Member] Assets held for sale Assets Held For Sale [Member] Assets Held For Sale Income tax benefit from divestiture, after noncontrolling interest Disposal Group, Including Discontinued Operation, Income Tax Expense (Benefit), Attributable To Parent Disposal Group, Including Discontinued Operation, Income Tax Expense (Benefit), Attributable To Parent Long-term debt held for sale Long-Term Debt Held For Sale, At Fair Value Long-Term Debt Held For Sale, At Fair Value Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Current portion of long-term debt and finance leases Long-Term Debt and Lease Obligation, Current Disposal group, notional amount, energy measure Disposal Group, Including Discontinued Operation, Derivative, Nonmonetary Notional Amount, Energy Measure Disposal Group, Including Discontinued Operation, Derivative, Nonmonetary Notional Amount, Energy Measure Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Short-term debt Disposal Group, Including Discontinued Operation, Short-Term Debt Disposal Group, Including Discontinued Operation, Short-Term Debt Debt instrument, basis spread on variable rate, minimum Debt Instrument, Basis Spread On Variable Rate, Minimum Debt Instrument, Basis Spread On Variable Rate, Minimum Commodity – electric Regulatory Balancing Accounts, Commodities, Electricity [Member] Regulatory Balancing Accounts, Commodities, Electricity [Member] Ownership [Domain] Ownership [Domain] Earnings attributable to noncontrolling interests Net income, NCI (after tax) Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Cost of natural gas Utilities Operating Expense, Gas and Petroleum Purchased Other long-term assets Other Assets, Noncurrent Interest payable Interest Payable, Current Entity Central Index Key Entity Central Index Key PEO Name PEO Name Revenues Revenues TO5 Settlement TO5 Settlement [Member] TO5 Settlement Energy-related businesses cost of sales Energy-Related Businesses Cost Of Sales [Member] Energy-Related Businesses Cost Of Sales Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Cost Securities Held In Nuclear Decommissioning Trusts, Amortized Costs Securities Held In Nuclear Decommissioning Trusts, Amortized Costs Potential monetary sanctions threshold (as a percent) Environmental Costs, Potential Monetary Sanctions, Threshold, Percentage Environmental Costs, Potential Monetary Sanctions, Threshold, Percentage Netting adjustment Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset Derivative Instruments on the Condensed Consolidated Balance Sheets Table Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Allocation of interests Increase (decrease) in allocation of interests Noncontrolling Interest, Increase (Decrease) From Allocation of Interests Noncontrolling Interest, Increase (Decrease) From Allocation of Interests Standby letters of credit held for sale Disposal Group, Including Discontinued Operation, Standby Letters Of Credit Disposal Group, Including Discontinued Operation, Standby Letters Of Credit Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Derivative, nonmonetary notional amount Derivative, Nonmonetary Notional Amount, Energy Measure Inventory, Current [Table] Inventory, Current [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Cost of natural gas Cost of Natural Gas [Member] Consideration to be received Disposal Group, Including Discontinued Operation, Consideration Reclassification to assets held for sale Accounts Receivable, Allowance For Credit Loss, Reclassification To Held For Sale Accounts Receivable, Allowance For Credit Loss, Reclassification To Held For Sale Nonrelated Party Nonrelated Party [Member] Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Change in equity related to allocation of interests Increase In Equity Related To CRNCI Activities Increase In Equity Related To CRNCI Activities Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Reportable Segment Reportable Segment [Member] Reportable Segment Interest on regulatory balancing accounts, net Regulatory Interest, net Regulatory interest, net. Entity Address, Address Line One Entity Address, Address Line One Contingently redeemable noncontrolling interest Beginning balance Ending balance Temporary Equity, Including Noncontrolling Interest Equity method investment, held for sale Equity method investments Disposal Group, Including Discontinued Operation, Equity Method Investments Disposal Group, Including Discontinued Operation, Equity Method Investments Accumulated other comprehensive income (loss) Total AOCI AOCI Attributable to Parent [Member] Accounts receivable - trade and other, net Accounts Receivable, Allowance for Credit Loss, Current Shares withheld for tax purposes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Unamortized debt issuance costs reclassified from noncurrent assets to long-term debt Unamortized Debt Issuance Costs Reclassified Unamortized Debt Issuance Costs Reclassified Ownership [Axis] Ownership [Axis] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Prior service cost (credit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) SI Partners and IEnova SI Partners and IEnova [Member] SI Partners and IEnova Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Disposal Group Held-for-sale Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Schedule of Other Nonoperating Income (Expense) Schedule of Other Nonoperating Income (Expense) [Table Text Block] Foreign currency translation adjustments, income tax (expense) benefit, attributable to parent Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Dilutive effect of stock options and RSUs (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Equity awards, granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Total operating revenues Operating revenues Regulated Operating Revenue Cost of sales Costs and Expenses Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Deferred income taxes and investment tax credits Deferred Income Taxes and Tax Credits Long-term debt Long-Term Debt, Fair Value Schedule of Fair Value Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Dedicated assets in support of certain benefit plans Asset, Held-in-Trust, Noncurrent Counterparty Name [Domain] Counterparty Name [Domain] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Requested return on equity (as a percent) Public Utilities, Requested Return on Equity, Percentage Utilities Revenue Not from Contract with Customer, Other, Regulated Operations Revenue Not from Contract with Customer, Other, Regulated Operations SI Partners SI Partners [Member] SI Partners Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Approved debt capital structure (as a percent) Public Utilities, Approved Debt Capital Structure, Percentage Other current liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Current Temporary Equity Disclosure [Abstract] Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding Letters of Credit Outstanding, Amount Safety and reliability Regulatory Balancing Accounts, Safety and Reliability [Member] Regulatory Balancing Accounts, Safety and Reliability [Member] Asset retirement obligations Asset Retirement Obligation, Current Years of service required for Health Reimbursement Account Defined Benefit Plan, Health Reimbursement Account, Years Of Service Required Defined Benefit Plan, Health Reimbursement Account, Years Of Service Required Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Number of shares that remain to be settled (in shares) Sale of Stock, Number of Shares That Remain To Be Issued in Transaction Sale of Stock, Number of Shares That Remain To Be Issued in Transaction Sale of Stock [Axis] Sale of Stock [Axis] Notional amount of derivative Derivative Liability, Notional Amount Schedule of Regulatory Liabilities Schedule of Regulatory Liabilities [Table Text Block] Disposal Group, Including Discontinued Operation, Assets [Abstract] Disposal Group, Including Discontinued Operation, Assets [Abstract] Award Type [Domain] Award Type [Domain] General Rate Case Plan [Domain] General Rate Case Plan [Domain] [Domain] for General Rate Case Plan [Axis] Pretax gain (loss) recognized in OCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Net regulatory assets held for sale Disposal Group, Including Discontinued Operation, Net Regulatory Assets Disposal Group, Including Discontinued Operation, Net Regulatory Assets Liability insurance premium Regulatory Balancing Accounts, Liability Insurance Premium [Member] Regulatory Balancing Accounts, Liability Insurance Premium Equity Awards Adjustments Equity Awards Adjustments [Member] Other Other Noncash Income (Expense) Deferred credits and other Deferred Credits and Other Liabilities Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Other revenues Other Income Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Equity interests issued Subsidiary, Equity Interest Issued Subsidiary, Equity Interest Issued Long-term amounts due to unconsolidated affiliates held for sale Long-Term Amounts Due To Unconsolidated Affiliates Held For Sale, At Fair Value Long-Term Amounts Due To Unconsolidated Affiliates Held For Sale, At Fair Value Expected consideration, promissory notes receivable, stated rate Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Stated Rate Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Stated Rate Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Gross unrealized losses Securities Held in Nuclear Decommissioning Trusts, Accumulated Gross Unrealized Loss, before Tax Securities Held in Nuclear Decommissioning Trusts, Accumulated Gross Unrealized Loss, before Tax Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Foreign exchange instruments Foreign Exchange Contract [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair value Estimate of Fair Value Measurement [Member] Revenue from performance obligations satisfied during reporting period Contract with Customer, Liability, Revenue Recognized Retirement Plan Type [Domain] Retirement Plan Type [Domain] Accounts Receivable, Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Sempra Infrastructure Sempra Infrastructure [Member] Sempra Infrastructure Expected consideration, receivable instrument, stated rate Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Stated Rate Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Stated Rate Inventory [Domain] Inventory [Domain] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Long-term debt and finance leases Long-Term Debt and Lease Obligation Financial Instruments [Domain] Financial Instruments [Domain] Cash Flow Hedge Impact on the Condensed Consolidated Statements of Comprehensive Income Table Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Inventories Total Inventory, Net Minimum Minimum [Member] Pension and other postretirement benefits, NCI (after tax) Other Comprehensive (Income) Loss, Defined Benefit Plan, After Tax And Reclassification Adjustment, Attributable To Nonredeemable Noncontrolling Interest Other Comprehensive (Income) Loss, Defined Benefit Plan, After Tax And Reclassification Adjustment, Attributable To Nonredeemable Noncontrolling Interest Earnings attributable to common shares, diluted Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted Company Selected Measure Name Company Selected Measure Name Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies US Government Debt Securities [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] REVENUES Regulated and Unregulated Operating Revenue [Abstract] DEBT AND CREDIT FACILITIES Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dividends declared but not paid Dividends Payable Requested interim rate recovery Public Utilities, Requested Interim Recovery Rate, Percentage Public Utilities, Requested Interim Recovery Rate, Percentage COMMITMENTS, CONTINGENCIES AND GUARANTEES Commitments and Contingencies Disclosure [Text Block] Weighted-average common shares outstanding (in shares) Weighted-average common shares outstanding for diluted EPS (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted average interest rate on total short-term debt outstanding Short-Term Debt, Weighted Average Interest Rate, at Point in Time Segment Information Segment Reporting, Policy [Policy Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Note Receivable, Stated Rate, Period [Domain] Note Receivable, Stated Rate, Period [Domain] Note Receivable, Stated Rate, Period [Domain] Potential monetary sanctions threshold Environmental Costs, Potential Monetary Sanctions, Threshold Environmental Costs, Potential Monetary Sanctions, Threshold Derivative [Table] Derivative [Table] Liabilities held for sale Liabilities Held For Sale [Member] Liabilities Held For Sale Depreciation expense Depreciation, Lessor Asset under Operating Lease Entity Small Business Entity Small Business Sales commissions Payments of Stock Issuance Costs Earnings attributable to contingently redeemable noncontrolling interest Net income, CRNCI (after tax) Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Funding commitment paid Noncontrolling Interest, Funding Commitment, Paid Noncontrolling Interest, Funding Commitment, Paid Authorized weighting (as a percent) Cost Of Capital Authorized Weighting Cost Of Capital Authorized Weighting Ages 55 To 64 Ages 55 To 64 [Member] Ages 55 To 64 Operation and maintenance Operation and maintenance Other Cost and Expense, Operating Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Notes receivable, allowance for credit losses Notes Receivable, Noncurrent, Allowance For Credit Loss Notes Receivable, Noncurrent, Allowance For Credit Loss Underlying Securities Award Underlying Securities Amount Gross realized gains Debt Securities, Available-for-Sale, Realized Gain Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Proceeds from sales of nuclear decommissioning and other trust assets Proceeds from sales of nuclear decommissioning trust assets Proceeds from sales Proceeds from Decommissioning Trust Fund Assets Beginning balance Ending balance Accounts Receivable, Allowance for Credit Loss Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Derivative fair value Derivative, Net Liability Position, Aggregate Fair Value Increase (decrease) in unrecorded unconditional purchase obligation, year two Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Two Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Two SoCalGas Southern California Gas Company [Member] Regulatory balancing accounts - net undercollected, Noncurrent Regulatory Balancing Accounts, Undercollected, Noncurrent Regulatory Balancing Accounts, Undercollected, Noncurrent Total equity Beginning Balance Ending balance Equity Equity, Including Portion Attributable to Noncontrolling Interest Foreign currency translation adjustments, CRNCI (after tax) Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment, Net Of Tax, Portion Attributable To Contingently Redeemable Noncontrolling Interest Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment, Net Of Tax, Portion Attributable To Contingently Redeemable Noncontrolling Interest Construction Incident Construction Incident [Member] Construction Incident Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Accounts receivable – other, net Accounts and Other Receivables, Net, Current Product and Service [Axis] Product and Service [Axis] Dividends and interest payable Interest and Dividends Payable, Current Revenues from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Allocation of interests Temporary Equity, Allocation Of Interests Temporary Equity, Allocation Of Interests Sole risk project, interest remaining Sole Risk Project, Interest Remaining Sole Risk Project, Interest Remaining Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Variable lease payments Operating Lease, Variable Lease Income Electric fuel and purchased power Electricity, US Regulated [Member] Comprehensive income (loss), NCI (after tax) Comprehensive Income (Loss), Net Of Tax, Attributable to Nonredeemable Noncontrolling Interest Comprehensive Income (Loss), Net Of Tax, Attributable to Nonredeemable Noncontrolling Interest Due from unconsolidated affiliates Total due from unconsolidated affiliates – current Other Receivables, Net, Current Regulatory Asset [Domain] Regulatory Asset [Domain] IOU expected aggregate reimbursements, 2019 and 2021 wildfires Wildfire Fund, Participating Investor Owned Utilities, Expected Aggregate Reimbursements, 2019 And 2021 Wildfires Wildfire Fund, Participating Investor Owned Utilities, Expected Aggregate Reimbursements, 2019 And 2021 Wildfires Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Disposal Group Name [Axis] Disposal Group Name [Axis] Shares withheld for tax purposes Payment, Tax Withholding, Share-Based Payment Arrangement Derivative asset, Additional cash collateral for commodity contracts subject to rate recovery Derivative Asset, Additional Margin Posted For Commodity Contracts Subject to Rate Recovery Additional margin posted for commodity contracts subject to rate recovery. Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Earnings attributable to common shares Earnings attributable to common shares Earnings attributable to Sempra Net Income (Loss) Available to Common Stockholders, Basic Other Income [Table] Other Income [Table] Regulatory assets Regulatory Asset, Current Current liabilities: Liabilities, Current [Abstract] Total other comprehensive income (loss), net of tax amount, attributable to parent Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Development credit payable Disposal Group, Including Discontinued Operation, Development Credit Payable Disposal Group, Including Discontinued Operation, Development Credit Payable Fair Value Hedge Impact on the Condensed Consolidated Statements of Operations Table Derivative Instruments, Gain (Loss) [Table Text Block] Operating expenses Operating Expenses Level 1 Fair Value, Inputs, Level 1 [Member] Line of credit outstanding Long-Term Line of Credit Note Receivable, Stated Rate, Period One Note Receivable, Stated Rate, Period One [Member] Note Receivable, Stated Rate, Period One Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Earnings (in dollars per share) Earnings per share, diluted (in dollars per share) Earnings Per Share, Diluted Accounts receivable – trade, net Accounts Receivable, after Allowance for Credit Loss, Current Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] ECA LNG Phase 1 ECA LNG Phase 1 [Member] ECA LNG Phase 1 Port Arthur LNG I Sempra PALNG Holdings, LLC [Member] Sempra PALNG Holdings, LLC Number of shares sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Income tax benefit Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Increase in unconditional purchase obligation, after year four Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, After Four Years Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, After Four Years Current portion of long-term debt Disposal Group, Including Discontinued Operation, Debt, Current Disposal Group, Including Discontinued Operation, Debt, Current Note receivable, net Receivable with Imputed Interest, Net Amount Segment Reporting, Disclosure Of Entity's Reportable Segments [Abstract] Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] SEMPRA - INVESTMENTS IN UNCONSOLIDATED ENTITIES Equity Method Investments and Joint Ventures Disclosure [Text Block] Development credit payable, period Disposal Group, Including Discontinued Operation, Development Credit Payable, Period Disposal Group, Including Discontinued Operation, Development Credit Payable, Period Public Utilities, General Disclosures [Abstract] Public Utilities, General Disclosures [Abstract] Public Utilities General Disclosures [Table] Public Utilities General Disclosures [Table] Loan Agreement To Finance Natural Gas Liquefaction Export Facility Loan Agreement To Finance Natural Gas Liquefaction Export Facility [Member] Loan Agreement To Finance Natural Gas Liquefaction Export Facility Regulatory Liability [Domain] Regulatory Liability [Domain] Realized and unrealized gains (losses), net Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Number of defendants Loss Contingency, Number of Defendants Income tax payments, net of refunds Income Taxes Paid, Net Number of project owners Number Of Project Owners Number Of Project Owners Foreign currency translation adjustments, NCI (after tax) Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment, Net Of Tax, Portion Attributable To Nonredeemable Noncontrolling Interest Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment, Net Of Tax, Portion Attributable To Nonredeemable Noncontrolling Interest LNG Natural Gas Liquids (NGL) [Member] Wildfire fund continuation account, additional liquidity Wildfire Fund, Continuation Account, Additional Liquidity Wildfire Fund, Continuation Account, Additional Liquidity Due from unconsolidated affiliates Disposal Group, Including Discontinued Operation, Due From Unconsolidated Affiliates Disposal Group, Including Discontinued Operation, Due From Unconsolidated Affiliates Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Current Debt outstanding Long-Term Debt, Gross TAG TAG [Member] TAG Accrued compensation and benefits Employee-related Liabilities, Current Property, plant and equipment, net Property plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Deferred credits and other Disposal Group, Including Discontinued Operation, Deferred Credits And Other Liabilities Disposal Group, Including Discontinued Operation, Deferred Credits And Other Liabilities Distributions to NCI Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Settlement charges Accumulated Defined Benefit Plans Adjustment, Net Settlements Attributable to Parent [Member] Accumulated Defined Benefit Plans Adjustment, Net Settlements Attributable to Parent [Member] Operating Lease, Lease Income Operating Lease, Lease Income [Table Text Block] Intersegment eliminations Intersegment revenues and eliminations Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date Requested debt capital structure (as a percent) Public Utilities, Requested Debt Capital Structure, Percentage Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Expected net proceeds Sale of Stock, Consideration Expected To Be Received on Transaction Sale of Stock, Consideration Expected To Be Received on Transaction 2027 Unrecorded Unconditional Purchase Obligation, to be Paid, Year One Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Derivative liability, Additional cash collateral for commodity contracts subject to rate recovery Derivative Liability, Additional Margin Posted For Commodity Contracts Subject to Rate Recovery Derivative Liability, Additional Margin Posted For Commodity Contracts Subject to Rate Recovery Ticking fee receivable, percent Disposal Group, Including Discontinued Operation, Ticking Fee Receivable Disposal Group, Including Discontinued Operation, Ticking Fee Receivable Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] Derivative liability, before netting Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement Financial Instrument [Axis] Financial Instrument [Axis] Derivative liability, Net amounts presented on the balance sheet Derivative Liability, Subject to Master Netting Arrangement, after Offset Receivable with Imputed Interest [Table] Receivable with Imputed Interest [Table] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Deferred Credits and Other Deferred Credits and Other [Member] Deferred Credits and Other [Member] Asset retirement obligations Asset Retirement Obligations, Noncurrent Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Issuances of debt (maturities greater than 90 days) Proceeds from Issuance of Long-Term Debt Current Fiscal Year End Date Current Fiscal Year End Date Cameron LNG Holdings Cameron LNG Holdings [Member] Schedule of Contract Accounts Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Other noncontrolling interests Other Noncontrolling Interests Derivative liabilities, Total Derivative liabilities Derivative liability Derivative Liability Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Natural Gas Contracts Natural Gas Contracts [Member] Natural Gas Contracts Interest rate instruments Interest rate instruments Interest Rate Contract [Member] Net transfers (to) from CRNCI and NCI Stockholders' Equity, Transfers (To) From Noncontrolling Interest Stockholders' Equity, Transfers (To) From Noncontrolling Interest Distributions from investments Proceeds from distributions received Proceeds from Equity Method Investment, Distribution Antidilutive securities excluded from earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Public purpose programs Regulatory Balancing Accounts, Public Purpose Programs [Member] Regulatory Balancing Accounts, Public Purpose Programs [Member] Estimated payments Unrecorded Unconditional Purchase Obligation Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Greenhouse gas obligations Greenhouse Gas Obligations, Noncurrent Greenhouse Gas Obligations, Noncurrent Jointly Owned Utility Plant Interests [Table] Regulated Operation, Jointly Owned Utility Plant [Table] Net income, pretax amount, attributable to parent Income (Loss) Attributable to Parent, before Tax Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Measure: Measure [Axis] Pension and other postretirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Proposed Cost of Capital 2026-2028 Proposed Cost of Capital 2026-2028 [Member] Proposed Cost of Capital 2026-2028 2028 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two Payments received in advance Contract With Customer, Advance Payments Received Contract With Customer, Advance Payments Received Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Operating expenses Cost of Product and Service Sold Amortization of actuarial loss Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Interim Period Effective Tax Rate Income Taxes, Interim Period Effective Tax Rate Policy [Policy Text Block] Income Taxes, Interim Period Effective Tax Rate Policy Congestion revenue rights (in dollars per MWH) Congestion Revenue Rights Congestion Revenue Rights Reclassifications out of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Other regulatory assets, net Other Regulatory Assets (Liabilities) [Member] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Derivative asset, Net amounts presented on the balance sheet Derivative Asset, Subject to Master Netting Arrangement, after Offset Catastrophic Event Memorandum Account And COVID -19 Pandemic Protections Memorandum Account Catastrophic Event Memorandum Account And COVID -19 Pandemic Protections Memorandum Account [Member] Catastrophic Event Memorandum Account And COVID -19 Pandemic Protections Memorandum Account Wildfire mitigation plan Regulatory Balancing Accounts, Wildfire Mitigation Plan [Member] Regulatory Balancing Accounts, Wildfire Mitigation Plan Common stock Common Stock Including Additional Paid in Capital [Member] Public Utilities, General Disclosures [Line Items] Public Utilities, General Disclosures [Line Items] Entity Tax Identification Number Entity Tax Identification Number Number of project owners sending proceeds from external lenders Long Term Debt, Number Of Project Owners In Financing Arrangement, Proceeds From External Lenders Long Term Debt, Number Of Project Owners In Financing Arrangement, Proceeds From External Lenders Bad debt expense Bad debt expense Increase (Decrease) In Bad Debt Expense Increase (Decrease) In Bad Debt Expense Regulatory adjustments Increase (Decrease) in Other Regulatory Assets Accounts payable – trade Accounts Payable, Trade, Current Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Total deferred credits and other liabilities Liabilities, Other than Long-Term Debt, Noncurrent Energy-related businesses Revenue Not from Contract with Customer, Other, Unregulated Operations Revenue Not from Contract with Customer, Other, Unregulated Operations Support Agreement, net of related guarantee fees Guarantor Obligations, Asset, Fair Value Disclosure Guarantor Obligations, Asset, Fair Value Disclosure Interest expense Interest expense Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Total revenues from operating leases Operating Lease, Lease Income Financial instruments, pretax amount, attributable to parent Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent Realized and unrealized gains (losses), net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Loss Contingencies [Line Items] Loss Contingencies [Line Items] Parent and other Earnings attributable to common shares Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Security Exchange Name Security Exchange Name Jointly Owned Utility Plant [Domain] Jointly Owned Utility Plant [Domain] Natural gas Regulated Operating Revenue, Gas Vested RSUs included in basic WASO (in shares) Vested RSUs Included In Basic WASO Vested restricted stock units included in basic weighted average shares outstanding. Expected consideration, receivable instrument, capitalized amount Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Principal And Interest Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Principal And Interest Accrued capital expenditures for PP&E Capital Expenditures Incurred but Not yet Paid Total facility Line of Credit Facility, Maximum Borrowing Capacity Preferred dividends Dividends, Preferred Stock Prepaid expenses Prepaid Expense, Current Operating expenses: Operating Expenses [Abstract] Other current liabilities Total due to unconsolidated affiliates – current Other Liabilities, Current Realized and unrealized gains (losses), net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings SI Partners and ConocoPhillips SI Partners and ConocoPhillips [Member] SI Partners and ConocoPhillips Pension and other postretirement benefit plan obligations, net of plan assets Pension obligation, net of plan assets Liability, Defined Benefit Plan, Noncurrent CRNCI Increase (Decrease) in Temporary Equity [Roll Forward] Statement [Line Items] Statement [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Wildfire fund asset Wildfire Fund Asset Wildfire Fund Asset Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Inventories classified as assets held for sale Inventories Disposal Group, Including Discontinued Operation, Inventory, Current 5.75% Junior Subordinated Notes Due 2079 Sempra 5.75% Junior Subordinated Notes Due 2079 [Member] Sempra Energy 5.75% Junior Subordinated Notes Due 2079 [Member] Common stock Common Stock [Member] Income tax benefit from divestiture Disposal Group, Including Discontinued Operation, Income Tax Expense (Benefit) Disposal Group, Including Discontinued Operation, Income Tax Expense (Benefit) Increase in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Pension and other postretirement benefits, pretax amount, attributable to parent Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent Statistical Measurement [Domain] Statistical Measurement [Domain] Current assets: Fixed-price contracts and other derivatives Other current assets Other Current Assets [Member] General Rate Case [Line Items] General Rate Case [Line Items] Income Tax Expense And Effective Income Tax Rates Disclosure [Line Items] Income Tax Expense And Effective Income Tax Rates Disclosure [Line Items] Related Party Transaction [Axis] Related Party Transaction [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Derivative, terminated amount Derivative, Terminated Amount Derivative, Terminated Amount Port Arthur LNG Port Arthur LNG [Member] Port Arthur LNG Domestic Line of Credit Domestic Line of Credit [Member] Interest rate swaps Interest Rate Swap [Member] Other long-term assets Other Noncurrent Assets [Member] Equity earnings Equity earnings Income (Loss) from Equity Method Investments Basic EPS: Earnings Per Share, Basic [Abstract] Operating Activities [Axis] Operating Activities [Axis] Revenue Recognition, Period Two Revenue Recognition, Period Two [Member] Revenue Recognition, Period Two Disposal Groups, Including Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Earnings (in dollars per share) Earnings per share, basic (dollars per share) Earnings Per Share, Basic Bechtel Bechtel [Member] Bechtel Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Commercial paper outstanding Commercial Paper [Member] Liabilities, Fair Value Disclosure [Abstract] Liabilities, Fair Value Disclosure [Abstract] At The Market Program Offering At The Market Program Offering [Member] At The Market Program Offering Dividends declared per share of preferred stock (in dollars per share) Preferred Stock, Dividends Per Share, Declared Collateral Additional Collateral, Aggregate Fair Value Total other comprehensive [income (loss)] Other comprehensive income (loss) Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Short-term debt Short-Term Debt Funding commitment, aggregate amount Noncontrolling Interest, Funding Commitment Noncontrolling Interest, Funding Commitment Revenues to be recognized Revenue, Remaining Performance Obligation, Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Non-service components of net periodic benefit cost Defined Benefit Plan, Other Cost (Credit) Number of purchase power contracts to be commenced in year two Lessee, Number Of Purchased-Power Contracts, To Be Commenced, Year Two Lessee, Number Of Purchased-Power Contracts, To Be Commenced, Year Two Liability cap, amount Equity Method Investment, Debt Covenant, Liability Cap, Amount Equity Method Investment, Debt Covenant, Liability Cap, Amount Change in unrealized gains (losses) relating to instruments still held at March 31 Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Redeemable Noncontrolling Interest [Table] Redeemable Noncontrolling Interest [Table] Category of Item Purchased [Axis] Category of Item Purchased [Axis] Short-term investments, primarily cash equivalents Cash and Cash Equivalents [Member] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Investments made during period Payments to Acquire Equity Method Investments OCI before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Public Utilities, Regulatory Proceeding [Domain] Public Utilities, Regulatory Proceeding [Domain] Hedging Designation [Domain] Hedging Designation [Domain] Income taxes due from (to) Sempra Income Taxes Receivable (Payable) Income Taxes Receivable (Payable) Current assets: Assets, Current [Abstract] Total liabilities, contingently redeemable noncontrolling interest, and equity Liabilities and Equity Pension and PBOP Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Greenhouse gas allowances Greenhouse Gas Allowances, Noncurrent Greenhouse Gas Allowances, Noncurrent Net income Temporary Equity, Net Income Cash, cash equivalents and restricted cash, January 1 Cash, cash equivalents and restricted cash, March 31 Total cash, cash equivalents and restricted cash on the Condensed Consolidated Statements of Cash Flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation SI Partners and IEnova IEnova And SI Partners [Member] IEnova And SI Partners Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Schedule of Equity Method Investments [Table] Equity Method Investment [Table] CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT Capital expenditures for property, plant and equipment Segment, Expenditure, Addition to Long-Lived Assets Public Utility [Axis] Public Utility [Axis] Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project [Member] Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project Expenditures for investments Payments to Acquire Other Investments Preferred Equity Preferred Equity [Member] Preferred Equity Pay vs Performance Disclosure [Line Items] Measurement Input, Commodity Forward Price Measurement Input, Commodity Forward Price [Member] Note Receivable, Stated Rate, Period [Axis] Note Receivable, Stated Rate, Period [Axis] Note Receivable, Stated Rate, Period Foreign currency translation adjustments, net of tax amount, attributable to parent Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Blackstone Blackstone [Member] Blackstone Allocated transmission instruments Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Allocated Transmission Instruments Fair value measurement with unobservable inputs reconciliation recurring basis asset allocated transmission instruments. Restricted cash, current Disposal Group, Including Discontinued Operation, Restricted Cash, Current Disposal Group, Including Discontinued Operation, Restricted Cash, Current Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Equity earnings, before income tax Income (Loss) From Equity Method Investments, Before Tax Income (Loss) From Equity Method Investments, Before Tax Schedule of Variable Interest Entities [Table] Variable Interest Entity [Table] Unamortized discount and debt issuance costs Unamortized Discount and Debt Issuance Costs Unamortized Discount and Debt Issuance Costs Electric, Non-Nuclear Electric, Non-Nuclear [Member] Electric, Non-Nuclear Commodity contracts subject to rate recovery Commodity contracts subject to rate recovery Commodity Contracts Subject To Rate Recovery [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Financial instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent ECA LNG Phase 1, Port Arthur LNG and Port Arthur LNG II ECA LNG Phase 1, Port Arthur LNG and Port Arthur LNG II [Member] ECA LNG Phase 1, Port Arthur LNG and Port Arthur LNG II Measurement Input Type [Axis] Measurement Input Type [Axis] SI Partners and IEnova Committed Line Of Credit Due December 2028 SI Partners and IEnova Committed Line Of Credit Due December 2028 [Member] SI Partners and IEnova Committed Line Of Credit Due December 2028 Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name Commodity contracts not subject to rate recovery Commodity Contracts Not Subject To Rate Recovery [Member] Secured Debt Secured Debt [Member] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Total other comprehensive income (loss), pretax amount, attributable to parent Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Deferred income taxes Deferred Income Tax Liabilities, Net Unsecured Debt Unsecured Debt [Member] Netting adjustment Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset Legal Entity [Axis] Legal Entity [Axis] Total assets Assets ASSETS Assets Deferred income taxes recoverable in rates Deferred Income Tax Charge [Member] First Mortgage Bonds Due March 2056 First Mortgage Bonds Due March 2056 [Member] First Mortgage Bonds Due March 2056 Port Arthur LNG II Committed Line Of Credit Due September 2030 Port Arthur LNG II Committed Line Of Credit Due September 2030 [Member] Port Arthur LNG II Committed Line Of Credit Due September 2030 Regulatory Liability [Axis] Regulatory Liability [Axis] Removal obligations Asset Retirement Obligation Costs [Member] CASH FLOWS FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Total other assets Total Investments And Other Assets Total investments and other assets. Other segment items Segment Reporting, Other Segment Item, Amount Increase (decrease) in unrecorded unconditional purchase obligation, remainder of year Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Remainder of Fiscal Year Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Remainder of Fiscal Year Due to unconsolidated affiliates Disposal Group, Including Discontinued Operation, Due To Unconsolidated Affiliates Disposal Group, Including Discontinued Operation, Due To Unconsolidated Affiliates Assets, Fair Value Disclosure [Abstract] Assets, Fair Value Disclosure [Abstract] Variable Interest Entities [Line Items] Variable Interest Entity [Line Items] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Dividends declared per share of common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Other investments Other Investments Entity Common Shares Outstanding Entity Common Stock, Shares Outstanding Total expense recognized Defined Benefit Plan, Expense (Income) Defined Benefit Plan, Expense (Income) Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Level 2 Fair Value, Inputs, Level 2 [Member] Schedule of Regulatory Assets Schedule of Regulatory Assets [Table Text Block] Investment in Oncor Holdings Equity method investment Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] CPUC Authorized Cost of Capital and Rate Structure Public Utilities General Disclosures [Table Text Block] Related Party Related Party [Member] Underwriting commission, percent Sale of Stock, Underwriting Commission Based On Gross Sales Price, Percent Sale of Stock, Underwriting Commission Based On Gross Sales Price, Percent Number of lines of credit Number Of Lines of Credit Number Of Lines of Credit Sales-type Lease, Lease Income Sales-type Lease, Lease Income [Table Text Block] Change from net income attributable to Sempra and transfers (to) from CRNCI and NCI Net Income (Loss), Including Transfers To Non-Controlling Interest Net Income (Loss), Including Transfers To Non-Controlling Interest Document Information [Table] Document Information [Table] PEO PEO [Member] Sunrise Powerlink fire mitigation Sunrise Powerlink Fire Mitigation [Member] Number of employee deaths Loss Contingency, Number Of Employee Deaths Loss Contingency, Number Of Employee Deaths TO6 Filing TO6 Filing [Member] TO6 Filing Regulated Operations Public Utilities, Policy [Policy Text Block] Interest income Investment Income, Interest Income before income taxes and equity earnings Income before income taxes and equity earnings Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Total debt securities Debt [Member] Preferred stock of subsidiary Noncontrolling Interest, Amount Represented by Preferred Stock Total operating expenses Utilities Operating Expense Retained earnings Retained Earnings [Member] Derivative asset, Additional cash collateral for commodity contracts not subject to rate recovery Derivative Asset, Additional Margin Posted For Commodity Contracts Not Subject to Rate Recovery Additional margin posted for commodity contracts not subject to rate recovery. Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] 62 Years Or Older 62 Years Or Older [Member] 62 Years Or Older Cash, cash equivalents and restricted cash, January 1 Cash, cash equivalents and restricted cash, March 31 Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Derivative assets, Total Derivative Asset Sale of Stock [Domain] Sale of Stock [Domain] Interest expense Interest Expense [Member] Payments on debt (maturities greater than 90 days) and finance leases Repayment of Long-Term Debt, Long-Term Lease Obligation, and Capital Security Promissory Note for SDSRA Distribution Promissory Note for SDSRA Distribution [Member] Promissory Note for SDSRA Distribution Product and Service [Domain] Product and Service [Domain] Weighted return on rate base (as a percent) Cost Of Capital Authorized Return On Rate Base Cost Of Capital Authorized Return On Rate Base Dividends declared: Dividends [Abstract] Sempra shareholders' equity Parent [Member] Net income Net income Net income (loss) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities Liabilities, Fair Value Disclosure Notional amounts Derivative, Notional Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Community Choice Aggregation Community Choice Aggregation [Member] Community Choice Aggregation Oncor Electric Delivery Company LLC. Oncor Electric Delivery Company LLC. [Member] Oncor Electric Delivery Company LLC. [Member] Allowance for equity funds used during construction Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity Employee Age [Axis] Employee Age [Axis] Employee Age City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Employee benefit costs Employee Benefit Costs [Member] Mortgages Mortgages [Member] Schedule of Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Third-Pary Third-Party Financial Institution [Member] Third-Party Financial Institution CASH FLOWS FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Fair Value Hedging Fair Value Hedging [Member] Actuarial loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Cash Flow Hedging Cash Flow Hedging [Member] Natural gas Natural Gas [Member] Long-term debt held for sale, unamortized discount and debt issuance costs Long-Term Debt Held For Sale, Unamortized Discount And Debt Issuance Costs Long-Term Debt Held For Sale, Unamortized Discount And Debt Issuance Costs General Rate Case General Rate Case [Member] General Rate Case [Member] Investment gains, net Gain (Loss) on Investments Long-term note receivable Notes Receivable, Fair Value Disclosure Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest [Member] Net regulatory assets (liabilities) Net Regulatory Assets SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION Supplemental Cash Flow Information [Abstract] Beginning balance Ending balance Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Other Performance Measure, Amount Other Performance Measure, Amount Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies US Treasury and Government [Member] Inventory [Line Items] Inventory [Line Items] Debt issuance costs Payments of Debt Issuance Costs Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Contract with Customer, Asset and Liability [Line Items] Contract with Customer, Asset and Liability [Line Items] [Line Items] for Contract with Customer, Asset and Liability [Table] Related Party [Domain] Related and Nonrelated Parties [Domain] Other current liabilities Other Current Liabilities [Member] Natural gas Natural Gas Derivative [Member] Natural Gas Derivative [Member] Commodity – gas, including transportation Regulatory Balancing Accounts, Commodities, Gas and Transportation [Member] Regulatory Balancing Accounts, Commodities, Gas and Transportation [Member] Contract with Customer, Liability [Roll Forward] Contract with Customer, Liability [Roll Forward] Contract with Customer, Liability [Roll Forward] Derivative Instrument [Axis] Derivative Instrument [Axis] Revenue Requirement, Period [Domain] Revenue Requirement, Period [Domain] Revenue Requirement, Period [Domain] Net change in working capital components Increase (Decrease) in Other Current Assets and Liabilities, Net Other current assets Other Assets, Current Investments [Abstract] Investments [Abstract] Entity [Domain] Entity [Domain] EQUITY METHOD INVESTMENTS Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Revenues to be recognized, period of recognition Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Fixed-price contracts and other derivatives Unrealized Gain (Loss) on Derivatives and Commodity Contracts Interest payments, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Right-of-use assets – operating leases Operating Lease, Right-of-Use Asset Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Pension and other postretirement benefits, CRNCI (after tax) Other Comprehensive (Income) Loss, Defined Benefit Plan, After Tax And Reclassification Adjustment, Attributable To Contingently Redeemable Noncontrolling Interest Other Comprehensive (Income) Loss, Defined Benefit Plan, After Tax And Reclassification Adjustment, Attributable To Contingently Redeemable Noncontrolling Interest Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Carrying amount Reported Value Measurement [Member] Age 55 To 61 Age 55 To 61 [Member] Age 55 To 61 Stock options, RSAs and RSUs Stock options, RSAs and RSUs [Member] Stock options, RSAs and RSUs [Member] Liability for legal proceedings Estimated Litigation Liability Derivative Financial Instruments Derivatives, Policy [Policy Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] 2029 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivatives not designated as hedging instruments: Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Port Arthur LNG I Port Arthur LNG I [Member] Port Arthur LNG I Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Approved recovery amount Public Utilities, Approved Rate Increase (Decrease), Amount Schedule of Net Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Other securities Other Debt Obligations [Member] Financial instruments, net of tax amount, attributable to parent Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Weighted Average Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Other Sempra Other Sempra [Member] Other Sempra Restricted cash Restricted cash, current Restricted Cash and Cash Equivalent, Current Capital Structure Category [Domain] Capital Structure Category [Domain] Capital Structure Category [Domain] Deferred income taxes Deferred Income Tax Assets, Net Repurchases of common stock Stock Repurchased During Period, Value Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Expenditures for property, plant and equipment Payments to Acquire Productive Assets Depreciation and amortization Depreciation, Depletion and Amortization Earnings attributable to common shares, basic Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Redeemable Noncontrolling Interest [Line Items] Redeemable Noncontrolling Interest [Line Items] Limited partnership agreement, board of managers, number of appointees Limited Partnership Agreement, Board Of Managers, Number Of Appointees Limited Partnership Agreement, Board Of Managers, Number Of Appointees Settlement charges Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Schedule of Segment Reporting Information, by Segment [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Energy-related businesses Energy-related businesses Unregulated Operating Revenue Finance lease obligations Finance Lease, Liability Arrangement Duration Trading Arrangement Duration Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Expected consideration, promissory notes receivable, capitalized amount Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Capitalized Amount Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Capitalized Amount Segments [Axis] Segments [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Schedule Of Sale Of Stock Schedule Of Sale Of Stock [Table Text Block] Schedule Of Sale Of Stock Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other Payment for (Proceeds from) Other Investing Activity Schedule of Sales of Securities By Nuclear Decommissioning Trusts Securities Owned Not Readily Marketable [Table Text Block] Investments, Fair Value Disclosure [Abstract] Investments, Fair Value Disclosure [Abstract] Maximum off-balance-sheet arrangement Off-Balance-Sheet, Credit Loss, Liability ASSETS Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Other Income [Line Items] Other Income [Line Items] Other Income [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Deferred Compensation Arrangement with Individual, Share-Based Payments [Line Items] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Aggregate sales price Sale of Stock, Aggregate Sales Price Sale of Stock, Aggregate Sales Price Credit Facility [Domain] Credit Facility [Domain] Stockholders' Equity Attributable to Parent [Abstract] Equity, Attributable to Parent [Abstract] Right-of-use assets – operating leases Disposal Group, Including Discontinued Operation, Operating Lease, Right-Of-Use Assets Disposal Group, Including Discontinued Operation, Operating Lease, Right-Of-Use Assets Debt instrument, interest rate Debt Instrument, Interest Rate, Stated Percentage Required quarterly distributions, percentage of distributable cash flow Required Quarterly Distributions, Percentage Of Distributable Cash Flow Required Quarterly Distributions, Percentage Of Distributable Cash Flow Investment, Name [Axis] Investment, Name [Axis] Ownership percentage expected to be retained after sale Disposal Group, Including Discontinued Operation, Ownership Percentage Expected To Be Retained After Sale Disposal Group, Including Discontinued Operation, Ownership Percentage Expected To Be Retained After Sale Sempra Texas Utilities Sempra Texas Utilities [Member] Sempra Texas Utilities [Member] Property, plant and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent Derivative asset, subject to master netting arrangement, before offset Derivative Asset, Subject to Master Netting Arrangement, before Offset FERC FERC [Member] FERC Subsidiary of common parent Subsidiary of Common Parent [Member] Entity Registrant Name Entity Registrant Name Credit support agreement, term Credit Support Agreement, Term Credit Support Agreement, Term Number of employee injuries Loss Contingency, Number Of Employee Injuries Loss Contingency, Number Of Employee Injuries Cash flow hedge losses to be reclassified Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Municipal bonds Municipal Bonds [Member] Net periodic benefit cost (credit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Franchise fees and other taxes Taxes, Other Total liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities Weighted return on rate base Weighted Return on Rate Base [Member] Weighted Return on Rate Base Regulated Operations [Abstract] Regulated Operations [Abstract] Total assets Assets, Fair Value Disclosure Ratio of indebtedness to net capital (in percent) Ratio of Indebtedness to Net Capital Number of operating segments Number of Operating Segments Schedule of Capitalization [Table] Schedule of Capitalization [Table] General rate case, expected recovery of wildlife mitigation plan costs General Rate Case, Expected Recovery Of Wildlife Mitigation Plan Costs General Rate Case, Expected Recovery Of Wildlife Mitigation Plan Costs Interest cost Defined Benefit Plan, Interest Cost Related Party [Axis] Related and Nonrelated Parties [Axis] Deferred credits and other Other Noncurrent Liabilities [Member] Restatement Determination Date: Restatement Determination Date [Axis] Utilities regulatory revenues Utilities Regulatory Revenue Utilities Regulatory Revenue Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Contributions Noncontrolling Interest, Increase from Subsidiary Equity Issuance Other Proceeds from (Payment for) Other Financing Activity Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Environmental Issues [Line Items] Environmental Issues [Line Items] Amounts reclassified from AOCI Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Regulatory Asset [Axis] Regulatory Asset [Axis] Name Trading Arrangement, Individual Name Jointly Owned Utility Plant [Axis] Jointly Owned Utility Plant [Axis] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Schedule Of Transfers (To) From Noncontrolling Interest Schedule Of Transfers (To) From Noncontrolling Interest [Table Text Block] Schedule Of Transfers (To) From Noncontrolling Interest Equity earnings, net of tax Income (Loss) From Equity Method Investments Net Of Tax Equity earnings, net of income tax. Debt amount Debt Instrument, Face Amount Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Preferred stock Preferred Stock [Member] Shared Common Facilities Shared Common Facilities [Member] Shared Common Facilities Equity securities Equity Funds [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Regulatory assets Regulatory Asset, Noncurrent Deferred income taxes Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Primary committed lines of credit Line Of Credit Facility, Number Of Committed Lines Of Credit Line Of Credit Facility, Number Of Committed Lines Of Credit ADIA ADIA [Member] ADIA Interest income Sales-type Lease, Interest Income Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Other current assets Disposal Group, Including Discontinued Operation, Other Assets, Current Litigation Case [Axis] Litigation Case [Axis] Liability Class [Axis] Liability Class [Axis] Foreign Tax Jurisdiction Foreign Tax Jurisdiction [Member] Segments [Domain] Segments [Domain] Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Available unused credit Line of Credit Facility, Remaining Borrowing Capacity Nuclear decommissioning trusts Decommissioning Fund Investments Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Schedule Of Net Regulatory Assets (Liabilities) [Table] Schedule Of Net Regulatory Assets (Liabilities) [Table] Q1 2025 Forward Sale Agreement February 2025 Forward Sale Agreement [Member] February 2025 Forward Sale Agreement Sundry, net Other Sundry Expenses, Net Other Sundry Expenses, Net Line of credit, amount outstanding Line of Credit, Current Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] Common Equity Capital Structure, Common Equity [Member] Other assets: Assets, Noncurrent [Abstract] Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] Jointly Owned Nuclear Power Plant Jointly Owned Nuclear Power Plant [Member] Changes in other noncurrent assets and liabilities, net Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Derivative liability, subject to master netting arrangement, asset offset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Preferred stock Preferred Stock, Value, Issued Municipal bonds US States and Political Subdivisions Debt Securities [Member] Liability cap (as a percent) Equity Method Investment, Debt Covenant, Liability Cap, Percent Equity Method Investment, Debt Covenant, Liability Cap, Percent Liquefied Natural Gas Contracts Liquefied Natural Gas Contracts [Member] Utilities Utilities Service Line [Member] Utilities Service Line [Member] All Executive Categories All Executive Categories [Member] Common stock Common Stock, Value, Issued Increase in unconditional purchase obligation, year four Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Four Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Four Lease Agreement For Tugboat Services Lease Agreement For Tugboat Services [Member] Lease Agreement For Tugboat Services Operating Activities [Domain] Operating Activities [Domain] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Commitments and contingencies Commitments and Contingencies Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total other revenues Total other revenues Revenue Not from Contract with Customer, Other Port Arthur LNG I Committed Line Of Credit Due March 2030 Port Arthur LNG I Committed Line Of Credit Due March 2030 [Member] Port Arthur LNG I Committed Line Of Credit Due March 2030 California Public Utilities Commission California Public Utilities Commission [Member] California Public Utilities Commission Termination fee to be received if closing not completed Disposal Group, Including Discontinued Operation, Termination Fee To Be Received If Closing Not Completed Disposal Group, Including Discontinued Operation, Termination Fee To Be Received If Closing Not Completed NCI Noncontrolling Interest [Member] Equity ownership interest (as a percent) Equity Method Investment, Ownership Percentage NEW ACCOUNTING STANDARDS Accounting Standards Update and Change in Accounting Principle [Text Block] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Pension and other postretirement benefits, income tax (expense) benefit, attributable to parent Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent Project [Axis] Project [Axis] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Diluted EPS: Earnings Per Share, Diluted [Abstract] Dilutive effect of common shares sold forward (in shares) Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements Hypothetical capital structure, common equity percentage FERC Settlement, Hypothetical Common Equity Structure, Percentage FERC Settlement, Hypothetical Common Equity Structure, Percentage CONTINGENTLY REDEEMABLE NONCONTROLLING INTEREST Contingently Redeemable Noncontrolling Interest [Text Block] Contingently Redeemable Noncontrolling Interest Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] First Mortgage Bonds Due March 2036 First Mortgage Bonds Due March 2036 [Member] First Mortgage Bonds Due March 2036 Hedging Designation [Axis] Hedging Designation [Axis] Goodwill Disposal Group, Including Discontinued Operation, Goodwill Other long-term assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Cost of electric fuel and purchased power Utilities Operating Expense, Purchased Power Total pension and other postretirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Derivative Contract [Domain] Derivative Contract [Domain] Transaction fees Disposal Group, Including Discontinued Operation, Transaction Fees On Sale Disposal Group, Including Discontinued Operation, Transaction Fees On Sale Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Issuances of common stock, net Proceeds from Issuance of Common Stock Gross realized losses Debt Securities, Available-for-Sale, Realized Loss All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Receivables with Imputed Interest [Line Items] Receivables with Imputed Interest [Line Items] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Aggregate sales price remaining Sale of Stock, Aggregate Sales Price Remaining Sale of Stock, Aggregate Sales Price Remaining Greenhouse gas obligations Greenhouse Gas Obligations, Current Greenhouse Gas Obligations, Current Name Forgone Recovery, Individual Name Franchise fees and other taxes Utilities Operating Expense, Taxes 2030 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four Regulatory Agency [Domain] Regulatory Agency [Domain] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Weighted average interest rate (as a percent) Debt, Weighted Average Interest Rate Foreign currency derivatives Foreign exchange instruments Foreign Exchange [Member] Schedule of General Rate Case [Table] Schedule of General Rate Case [Table] Increase in shareholders' equity from allocation of interest Stockholders' Equity, Transfers (To) From Noncontrolling Interest, Allocation Of Interests Stockholders' Equity, Transfers (To) From Noncontrolling Interest, Allocation Of Interests Commodity Derivative Volumes Table Schedule of Derivative Instruments [Table Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Estimated fair value Securities Held in Nuclear Decommissioning Trust, Fair Value Securities Held in Nuclear Decommissioning Trust, Fair Value Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Pension and other postretirement benefits, net of tax amount, attributable to parent Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Foreign currency transaction (losses) gains, net Gain (Loss), Foreign Currency Transaction, before Tax Congestion revenue rights Congestion Revenue Rights Derivative [Member] Congestion Revenue Rights Derivative [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Uncommitted line of credit Foreign Unsecured Line of Credit [Member] Foreign Unsecured Line of Credit KKR Partners KKR Partners [Member] KKR Partners Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Number of lawsuits Loss Contingency, Number of Plaintiffs Increase (decrease) in unrecorded unconditional purchase obligation, year one Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year One Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year One Expected consideration, promissory notes receivable, face amount Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Face Amount Disposal Group, Including Discontinued Operation, Consideration, Promissory Notes Receivable, Face Amount Earnings Per Share [Abstract] Ownership interest (as a percent) Subsidiary, Ownership Percentage, Parent Change in unrealized gains (losses) relating to instruments still held at March 31 Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) Accounts receivable – other, net Accounts Receivable, Other, Net [Member] Accounts Receivable, Other, Net [Member] Co-sale rights threshold Partnership Agreement, Co-Sale Rights Threshold Partnership Agreement, Co-Sale Rights Threshold Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Accounts payable – other Accounts Payable, Other, Current Revenue Recognition, Period Three Revenue Recognition, Period Three [Member] Revenue Recognition, Period Three Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Award Timing Disclosures [Line Items] Schedule of Inventory, Current Schedule of Inventory, Current [Table Text Block] Service cost Defined Benefit Plan, Service Cost Health Reimbursement Account Defined Benefit Plan, Special and Contractual Termination Benefits, Health Reimbursement Account Defined Benefit Plan, Special and Contractual Termination Benefits, Health Reimbursement Account Repayments of advances from unconsolidated affiliate in lieu of distributions Noncash Payments Of Advances To Affiliates Noncash Payments Of Advances To Affiliates Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] OCI before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax CRNCI and NCI activities: Noncontrolling Interest Items [Abstract] SEMPRA – EQUITY AND EARNINGS PER COMMON SHARE Equity [Text Block] Schedule of Capitalization Schedule of Capitalization [Table Text Block] Performance-based RSUs Restricted Stock Units (RSUs), Performance-based [Member] Restricted Stock Units (RSUs), Performance-based [Member] Net income, after tax amounts, attributable to parent Total, net of income tax and after NCI Net income attributable to Sempra Net Income (Loss) Attributable to Parent Subsidiary or Equity Method Investee [Line Items] Subsidiary or Equity Method Investee [Line Items] Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Post-closing additional distribution, percentage to be received Post-Closing Additional Distribution, Percentage To Be Received Post-Closing Additional Distribution, Percentage To Be Received Fixed lease payments Operating Lease, Lease Income, Lease Payments Number of purchased-power contracts Lessee, Number Of Purchased-Power Contracts Lessee, Number Of Purchased-Power Contracts Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Electric Regulated Operating Revenue, Electric, Non-Nuclear Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Repurchases of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Wildfire fund Prepaid Insurance Fund Asset, Noncurrent Prepaid Insurance Fund Asset, Noncurrent Receivables from revenues from contracts with customers Contract with Customer, Asset, after Allowance for Credit Loss Common Stock Shares Issued Not Disclosed Common Stock Shares Issued Not Disclosed Common Stock Shares Issued Not Disclosed Operating income Income from operations Operating Income (Loss) Line of Credit Line of Credit [Member] Retained earnings Retained Earnings (Accumulated Deficit) Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Total nuclear decommissioning trusts Decommissioning Fund Investments, Fair Value Ownership percentage sold Disposal Group, Including Discontinued Operation, Ownership Percentage, Agreed To Sell Disposal Group, Including Discontinued Operation, Ownership Percentage, Agreed To Sell Contract with Customer, Asset [Line Items] Contract with Customer, Asset [Line Items] [Line Items] for Contract with Customer, Asset [Table] Gas Natural Gas, Gathering, Transportation, Marketing and Processing [Member] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Environmental Issues [Table] Environmental Issues [Table] Total revenues from sales-type leases Sales-type Lease, Revenue Class of Stock [Axis] Class of Stock [Axis] Financial instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] CCM benchmark rate, variable rate (as a percent) CCM Benchmark Rate, Variable Rate CCM Benchmark Rate, Variable Rate Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Retirement Plan Type [Axis] Retirement Plan Type [Axis] Tax Sharing Arrangement Tax Sharing Arrangement [Member] Tax Sharing Arrangement Condensed Financial Statements Condensed Financial Statements [Table Text Block] Other income, net Other income, net Other income, net Total Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Energy-related businesses Energy-Related Businesses [Member] Energy-Related Businesses [Member] Termination of interest rate swaps, net of transaction costs Proceeds from Derivative Instrument, Financing Activities Series C Preferred Stock Series C Preferred Stock [Member] Financial instruments, NCI (after tax) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), After Reclassification And Tax, Nonredeemable Noncontrolling Interest Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), After Reclassification And Tax, Nonredeemable Noncontrolling Interest Variable Rate [Domain] Variable Rate [Domain] Contract liabilities, opening balance Contract liabilities, closing balance Contract with Customer, Liability Employee Age [Domain] Employee Age [Domain] Employee Age [Domain] Increase (decrease) in unrecorded unconditional purchase obligation, year three Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Three Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Three Recurring Fair Value Measures Level 3 Rollforward Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Electric Electricity [Member] Amendment Flag Amendment Flag Sale of stock, price per share (usd per share) Sale of Stock, Price Per Share PBOP Other Postretirement Benefits Plan [Member] Total revenues Revenues Regulated and Unregulated Operating Revenue Term of interest rate cash flow hedge (in years) Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Oncor Holdings Oncor Holdings Oncor Electric Delivery Holdings Company LLC [Member] Oncor Electric Delivery Holdings Company LLC [Member] Recurring Fair Value Measures Fair Value, Assets Measured on Recurring Basis [Table Text Block] Weighted-average common shares outstanding (in shares) Weighted-average common shares outstanding for basic EPS (in shares) Weighted Average Number of Shares Outstanding, Basic Q4 2024 Forward Sale Agreement November 2024 Forward Sale Agreement [Member] November 2024 Forward Sale Agreement Funding commitment, construction project Funding Commitment, Construction Project Funding Commitment, Construction Project Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Derivative asset, before netting Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement FERC requirement to maintain common equity ratio, at or above (percent) FERC Requirement To Maintain Common Equity Ratio At Or Above FERC Requirement To Maintain Common Equity Ratio At Or Above Related Party Transaction [Domain] Related Party Transaction [Domain] Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Deferred Compensation Arrangement with Individual, Share-Based Payment [Table] Segment Reporting [Abstract] Segment Reporting [Abstract] Special termination benefits Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits Debt Disclosure [Abstract] Debt Disclosure [Abstract] Materials and supplies Energy Related Inventory, Materials And Supplies Energy related inventory, materials and supplies. Greenhouse gas allowances Greenhouse Gas Allowances, Current Greenhouse Gas Allowances, Current Write-offs Accounts Receivable, Allowance for Credit Loss, Writeoff Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Other long-term assets Accounts Receivable, Allowance for Credit Loss, Noncurrent Income taxes receivable Income taxes receivable, net Income Taxes Receivable, Current Note receivable issued Receivable with Imputed Interest, Face Amount Expected consideration, receivable instrument, face amount Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Face Amount Disposal Group, Including Discontinued Operation, Consideration, Receivable Instruments, Face Amount Public Utilities, Regulatory Proceeding [Axis] Public Utilities, Regulatory Proceeding [Axis] Non-qualified stock options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Accounts receivable, net Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Percent of dismantlement work expense (as a percent) Environmental Exit Costs, Anticipated Cost, Percentage Environmental Exit Costs, Anticipated Cost, Percentage Total other comprehensive income (loss), income tax (expense) benefit, attributable to parent Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Derivative asset, subject to master netting arrangement, liability offset Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Total foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Regulatory liabilities Regulatory Liability, Current Equity securities Equity Securities [Member] Compound interest rate (as a percent) Receivable with Imputed Interest, Effective Yield (Interest Rate) SONGS 2 and 3 Decommissioning SONGS 2 and 3 Decommissioning [Member] SONGS 2 and 3 Decommissioning [Member] Notes receivable, unamortized transaction costs Notes Receivable, Unamortized Issuance Costs Notes Receivable, Unamortized Issuance Costs Ages 65 Or Older Ages 65 Or Older [Member] Ages 65 Or Older Liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Cost of electric fuel and purchased power Cost of Electric Fuel and Purchased Power [Member] Environmental cost, potential monetary sanctions threshold, actual amount Environmental Cost Potential Monetary Sanctions Threshold Actual Amount Environmental Cost Potential Monetary Sanctions Threshold Actual Amount Sempra Sempra [Member] Sempra Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Cameron LNG JV Cameron LNG [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Jointly owned utility plant, proportionate ownership share (as a percent) Jointly Owned Utility Plant, Proportionate Ownership Share PA2 JVCo PA2 JVCo [Member] PA2 JVCo Interest rate swaps de-designated Interest Rate Swaps De-Designated [Member] Interest Rate Swaps De-Designated Operation and maintenance Utilities Operating Expense, Maintenance and Operations Issuances of common stock Stock Issued During Period, Value, New Issues Other intangible assets Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent Variable Rate [Axis] Variable Rate [Axis] Consolidation Items [Axis] Consolidation Items [Axis] Natural gas Energy Related Inventory, Natural Gas in Storage Common dividends issued in stock Dividends, Common Stock, Stock Counterparty Name [Axis] Counterparty Name [Axis] Environmental costs Environmental Restoration Costs [Member] Net income Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]