Commitments and Contingencies Disclosure [Abstract]
Loss Contingencies [Table]
Loss Contingencies [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Deferred Credits and Other [Member]
Deferred Credits and Other [Member]
Deferred Credits and Other [Member]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Sempra Mexico [Member]
Sempra Mexico [Member]
Investment, Name [Axis]
Investment, Name [Axis]
Investment, Name [Domain]
Investment, Name [Domain]
Infraestructura Marina del Golfo [Member]
Infraestructura Marina del Golfo [Member]
Infraestructura Marina del Golfo [Member]
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Corporate Joint Venture [Member]
Corporate Joint Venture [Member]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event [Member]
Subsequent Event [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Funding for Environmental Projects [Member]
Funding for Environmental Projects [Member]
Funding for Environmental Projects [Member]
Civil Penalties [Member]
Civil Penalties [Member]
Civil Penalties [Member]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case [Domain]
Litigation Case [Domain]
Consolidated Class Action Complaints [Member]
Consolidated Class Action Complaints [Member]
Consolidated Class Action Complaints [Member]
Property Class Action [Member]
Property Class Action [Member]
Property Class Action [Member]
Complaints Filed by Firefighters [Member]
Complaints Filed by Firefighters [Member]
Complaints Filed by Firefighters [Member]
Complaints Filed by Public Entities [Member]
Complaints Filed by Public Entities [Member]
Complaints Filed by Public Entities [Member]
R B S Sempra Commodities [Member]
R B S Sempra Commodities [Member]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Loss from Catastrophes, 2007 Wildfire [Member]
Loss from Catastrophes [Member]
Aliso Canyon Natural Gas Storage Facility Gas Leak [Member]
Aliso Canyon Natural Gas Storage Facility Gas Leak [Member]
Shareholder Derivative Complaint [Member]
Shareholder Derivative Complaint [Member]
Shareholder Derivative Complaint [Member]
Damages from Product Defects [Member]
Damages from Product Defects [Member]
HMRC VAT Claim [Member]
HMRC VAT Claim [Member]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Parent Company [Member]
Parent Company [Member]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Sempra Energy [Member]
Sempra Energy [Member]
San Diego Gas and Electric Company [Member]
San Diego Gas and Electric Company [Member]
Southern California Gas Company [Member]
Southern California Gas Company [Member]
Plaintiffs [Member]
Plaintiffs [Member]
Plaintiffs [Member]
Energy Future Holdings Corp. [Member]
Energy Future Holdings Corp. [Member]
Energy Future Holdings Corp. [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Loss contingency accrual
Loss Contingency Accrual
Write-off of wildfire regulatory asset
Loss Contingency Accrual, Provision
Write-off of wildfire regulatory asset net of tax
Loss Contingency Accrual, Provision, Net of Tax
Loss Contingency Accrual, Provision, Net of Tax
Number of pending claims
Loss Contingency, Pending Claims, Number
Number of plaintiffs
Loss Contingency, Number of Plaintiffs
Number of lawsuits
Loss Contingency, New Claims Filed, Number
Settlement amount payable
Litigation Settlement, Amount Awarded to Other Party
Maximum occupational safety And health fines
Maximum Occupational Safety And Health Fines
Maximum occupational safety and health fines
Penalty assessments
Penalty Assessments
Penalty Assessments
Maximum other assessments in settlement of criminal complaint
Maximum Other Assessments
Maximum Other Assessments
Net book value Of Aliso Canyon Natural Gas Storage Facility
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment
Recorded estimated costs
Accrued Costs
Recorded Estimated Costs.
Recoverable costs through insurance settlement
Insurance Settlements Receivable
Percentage of recorded estimated costs allocated to temporary relocation program
Percent of Loss Accrual Allocated to Temporary Relocation Program
Percent of Loss Accrual Allocated to Temporary Relocation Program
Reserve for Aliso Canyon costs
Payable Related To Natural Gas Leak
Reserve for Aliso Canyon costs.
Liability insurance coverage
Liability Insurance Coverage
Liability Insurance Coverage
Insurance receivable for Aliso Canyon costs
Receivable related to natural gas leak
Insurance receivable for Aliso Canyon costs
Proceeds from insurance settlement
Proceeds from Insurance Settlement, Operating Activities
Ownership percentage in equity method investee
Equity Method Investment, Ownership Percentage
Service Agreement, Term
Service Agreement, Term
Service Agreement, Term
VAT tax claim paid upon appeal
VAT Tax Claim Amount
VAT Tax Claim Amount.
Damages sought
Loss Contingency, Damages Sought, Value
Investment in RBS Sempra Commodities LLP
Investment in RBS Sempra Commodities
Investment in joint venture.
Proof of claims
Loss Contingency, Proof of Claims, Number
Loss Contingency, Proof of Claims, Number
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Oncor Electric Delivery Holdings Company LLC [Member]
Oncor Electric Delivery Holdings Company LLC [Member]
Oncor Electric Delivery Holdings Company LLC [Member]
Scenario [Axis]
Scenario [Axis]
Scenario [Domain]
Scenario [Domain]
Scenario, Adjustment [Member]
Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Assets acquired:
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Accounts receivable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Due from unconsolidated affiliates
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Due From Affiliates
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Due From Affiliates
Investment in Oncor Holdings
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity method Investments
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity method Investments
Deferred income taxes
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets
Other noncurrent assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets
Total assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Liabilities assumed:
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Other current liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other
Pension and other postretirement benefit plan obligations
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Employee Benefit Plan Obligations
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Employee Benefit Plan Obligations
Deferred credits and other
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Credits and Other
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Credits and Other
Total liabilities assumed
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Net assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Total purchase price paid
Business Combination, Consideration Transferred
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Member]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Financial instruments [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
Financial instruments attributable to Noncontrolling interests [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member]
Financial instruments attributable to parent [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Amortization of actuarial loss [Member]
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Amortization of prior service cost [Member]
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
Accumulated Defined Benefit Plans Adjustment, Net Settlements Attributable to Parent [Member]
Accumulated Defined Benefit Plans Adjustment, Net Settlements Attributable to Parent [Member]
Accumulated Defined Benefit Plans Adjustment, Net Settlements Attributable to Parent [Member]
Pension and other postretirement benefits [Member]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Interest rate and foreign exchange instruments [Member]
Cross Currency Interest Rate Contract [Member]
Interest rate instruments [Member]
Interest Rate Contract [Member]
Foreign exchange instruments [Member]
Foreign Exchange Contract [Member]
Commodity Contracts Not Subject To Rate Recovery [Member]
Commodity Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense
Interest Expense
Other income, net
Other Nonoperating Income (Expense)
Gain on sale of assets
Gain (Loss) on Disposition of Assets
Equity earnings
Income (Loss) From Equity Investments
Income (Loss) From Equity Investments
Energy-related businesses
Unregulated Operating Revenue
(Loss) income from discontinued operations, net of income tax
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Income before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Income tax (expense) benefit
Income Tax Expense (Benefit)
Net of income tax
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Earnings attributable to noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest
Earnings attributable to common shares
Net Income (Loss) Attributable to Parent
Condensed Financial Information Disclosure [Abstract]
Condensed Income Statement [Table]
Condensed Income Statement [Table]
Condensed Income Statements, Captions [Line Items]
Condensed Income Statements, Captions [Line Items]
Interest income
Investment Income, Interest
Operating expenses
Operating Costs and Expenses
Other (expense) income, net
Income tax benefit
Equity in earnings of subsidiaries, net of income taxes
Income (Loss) From Equity Method Investments Net Of Tax
Equity earnings, net of income tax.
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Mandatory convertible preferred stock dividends
Redeemable Preferred Stock Dividends
Basic earnings per common share (in shares)
Earnings Per Share, Basic
Weighted-average number of shares outstanding, basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted earnings per common share (in dollars per share)
Earnings Per Share, Diluted
Weighted-average number of shares outstanding, diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Debt Disclosure [Abstract]
Schedule Of Long-term Debt Maturities [Table]
Schedule Of Long-term Debt Maturities [Table]
Other Sempra Energy [Member]
Other Sempra Energy [Member]
Other Sempra Energy [Member]
Schedule Of Long Term Debt Maturities [Line Items]
Schedule Of Long Term Debt Maturities [Line Items]
2020
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
2021
Long-term Debt, Maturities, Repayments of Principal in Year Two
2022
Long-term Debt, Maturities, Repayments of Principal in Year Three
2023
Long-term Debt, Maturities, Repayments of Principal in Year Four
2024
Long-term Debt, Maturities, Repayments of Principal in Year Five
Thereafter
Long-term Debt, Maturities, Repayments of Principal after Year Five
Total
Long Term Debt Maturities, Total Repayments Of Principal
Long-term debt maturities, total repayments of principal.
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Retirement Plan Name [Axis]
Retirement Plan Name [Axis]
Retirement Plan Name [Domain]
Retirement Plan Name [Domain]
Voluntary Retirement Enhancement Program [Member]
Voluntary Retirement Enhancement Program [Member]
Voluntary Retirement Enhancement Program [Member]
Sempra Texas Holdings Corp [Member]
Sempra Texas Holdings Corp [Member]
Sempra Texas Holdings Corp [Member]
Ownership [Axis]
Ownership [Axis]
Ownership [Domain]
Ownership [Domain]
Oncor Electric Delivery Company LLC [Member]
Oncor Electric Delivery Company LLC. [Member]
Oncor Electric Delivery Company LLC. [Member]
Retirement Plan Tax Status [Axis]
Retirement Plan Tax Status [Axis]
Retirement Plan Tax Status [Domain]
Retirement Plan Tax Status [Domain]
Qualified Plan [Member]
Qualified Plan [Member]
Nonqualified Plan [Member]
Nonqualified Plan [Member]
Sempra Texas Intermediate Holding Company LLC [Member]
Sempra Texas Intermediate Holding Company LLC [Member]
Sempra Texas Intermediate Holding Company LLC [Member]
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
Pension Plan [Member]
Pension Plan [Member]
Other Postretirement Benefits Plan [Member]
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Dedicated assets in support of certain benefit plans
Assets Held-in-trust, Noncurrent
Plan amendments
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment
Benefit obligation payment for settlement
Defined Benefit Plan, Benefit Obligation, Payment for Settlement
Plan assets, payment for settlement
Defined Benefit Plan, Plan Assets, Payment for Settlement
Increase due to business combination
Defined Benefit Plan, Benefit Obligation, Business Combination
Gain (loss) arising during the period
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Settlement charges
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax
Increase in liability due to special termination benefits
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits
Decrease in defined benefit plan obligation due to settlement
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Foreign Committed Lines of Credit, Due February 2024 [Member]
Foreign Committed Lines of Credit, Due February 2024 [Member]
Foreign Committed Lines of Credit, Due February 2024 [Member]
Foreign Committed Lines of Credit, Due April 2022 [Member]
Foreign Committed Lines of Credit, Due April 2022 [Member]
Foreign Committed Lines of Credit, Due April 2022 [Member]
Foreign Committed Lines of Credit, Due September 2021 [Member]
Foreign Committed Lines of Credit, Due September 2021 [Member]
Foreign Committed Lines of Credit, Due September 2021 [Member]
Sempra Global [Member]
Sempra Global [Member]
Sempra Global [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Commercial paper [Member]
Commercial Paper [Member]
Foreign Line of Credit [Member]
Foreign Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Total facility
Line of Credit Facility, Maximum Borrowing Capacity
Line of credit outstanding
Long-term Line of Credit
Available unused credit
Line of Credit Facility, Remaining Borrowing Capacity
Committed lines of credit, capacity for issuance of letters of credit
Line Of Credit Facility, Letters Of Credit Capacity
Committed lines of credit, capacity for issuance of letters of credit.
Line of credit, increase limit
Line of Credit Facility, Increase Limit
Line of Credit Facility, Increase Limit
Unamortized discount on long-term debt
Debt Instrument, Unamortized Discount
Segment Reporting [Abstract]
Segment Information
Segment Reporting Disclosure [Text Block]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative [Table]
Derivative [Table]
SDG&E [Member]
S D G E Segment [Member]
SoCalGas [Member]
So Cal Gas Segment [Member]
Natural Gas Derivative [Member]
Natural Gas Derivative [Member]
Natural Gas Derivative [Member]
Electric Energy Derivative [Member]
Electric Energy Derivative [Member]
Electric Energy Derivative [Member]
Congestion Revenue Rights Derivative [Member]
Congestion Revenue Rights Derivative [Member]
Congestion Revenue Rights Derivative [Member]
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Notional Amount, Energy Measure
Derivative, Nonmonetary Notional Amount, Energy Measure
Accounting Changes and Error Corrections [Abstract]
NEW ACCOUNTING STANDARDS
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Leases [Abstract]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Sempra LNG [Member]
Sempra LNG [Member]
Sempra LNG [Member]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Lease not yet commenced, aggregate maximum lease limit
Lessee, Finance Lease, Lease Not yet Commenced, Aggregate Maximum Lease Limit
Lessee, Finance Lease, Lease Not yet Commenced, Aggregate Maximum Lease Limit
Lease not yet commenced, aggregate maximum lease limit, amount utilized
Lessee, Finance Lease, Lease Not yet Commenced, Aggregate Maximum Lease Limit, Utilized
Lessee, Finance Lease, Lease Not yet Commenced, Aggregate Maximum Lease Limit, Utilized
Lease not yet commenced, due in 2021
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, Year One
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, Year One
Lease not yet commenced, due 2022 through 2024
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, Year Two Through Four
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, Year Two Through Four
Lease not yet commenced, due after year 2024
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, After Year Four
Lessee, Operating Lease, Lease Not Yet Commenced, Payments, After Year Four
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Fair Value, Recurring [Member]
Fair Value, Recurring [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category [Domain]
Defined Benefit Plan, Plan Assets, Category [Domain]
Cash and Cash Equivalents [Member]
Defined Benefit Plan, Cash and Cash Equivalents [Member]
Equity Securities, Domestic [Member]
Defined Benefit Plan, Equity Securities, US [Member]
Equity Securities, International [Member]
Defined Benefit Plan, Equity Securities, Non-US [Member]
Equity Securities, Registered Investment Company [Member]
Equity Securities, Registered Investment Company [Member]
Domestic Government Bonds [Member]
US Treasury and Government [Member]
International government bonds [Member]
Debt Security, Government, Non-US [Member]
Domestic corporate bonds [Member]
Debt Security, Corporate, US [Member]
International corporate bonds [Member]
Debt Security, Corporate, Non-US [Member]
Registered investment companies [Member]
Fixed Income, Registered Investment Company [Member]
Defined Benefit Plan, Derivative [Member]
Defined Benefit Plan, Derivative [Member]
Total investment assets in the fair value hierarchy [Member]
Total investment assets in the fair value hierarchy [Member]
Total investment assets in the fair value hierarchy [Member]
Common/collective trusts [Member]
Defined Benefit Plan, Common Collective Trust [Member]
Private Equity Funds [Member]
Private Equity Funds [Member]
Fair value of plan assets
Defined Benefit Plan, Plan Assets, Amount
Investments measured at NAV
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount
Accounts receivable payable, net
Accounts Receivable/Payable, Net Excluded From Fair Value of Defined Benefit Plan Assets
Accounts Receivable/Payable, Net Excluded From Fair Value of Defined Benefit Plan Assets
Investments [Abstract]
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
Sempra Renewables [Member]
Sempra Renewables [Member]
Sempra LNG [Member]
Sempra LNG & Midstream [Member]
Sempra LNG & Midstream [Member]
Sempra Energy and Other [Member]
Sempra Energy and Other [Member]
Sempra Energy and Other [Member]
Sharyland Holdings, LP [Member]
Sharyland Holdings, LP [Member]
Sharyland Holdings, LP [Member]
California Solar Partnership [Member]
California Solar Partnership [Member]
Copper Mountain Solar 3 [Member]
Copper Mountain Solar 3 [Member]
Broken Bow 2 Wind [Member]
Broken Bow 2 Wind [Member]
Cedar Creek 2 Wind Farm [Member]
Cedar Creek 2 Wind Farm [Member]
Flat Ridge 2 Wind Farm [Member]
Flat Ridge 2 Wind Farm [Member]
Fowler Ridge 2 Wind Farm [Member]
Fowler Ridge 2 Wind Farm [Member]
Mehoopany Wind Farm [Member]
Mehoopany Wind Farm [Member]
Copper Mountain Solar 2 [Member]
Copper Mountain Solar 2 [Member]
Mesquite Solar 1 [Member]
Mesquite Solar 1 [Member]
Cameron LNG Holdings [Member]
Cameron LNG Holdings [Member]
Ductos Energéticos del Norte [Member]
Ductos Energéticos del Norte [Member]
Ductos Energéticos del Norte [Member]
Energia Sierra Juarez Wind Project [Member]
Energia Sierra Juarez Wind Project [Member]
IMG [Member]
TAG [Member]
TAG Pipeline Norte [Member]
TAG Pipeline Norte [Member]
Auwahi Wind [Member]
Auwahi Wind [Member]
Other Equity Method Investments [Member]
Other Equity Method Investments And Other Investments [Member]
Other Equity Method Investments [Member]
Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Equity method investment
Equity Method Investments
Other investments
Other Investments
Difference between carrying amount of equity method investment and underlying equity
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity
Goodwill
Goodwill
Equity method investment, difference between carrying amount and underlying equity, aoci
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity, AOCI
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity, AOCI
Equity method investment, difference between carrying amount and underlying equity, tax sharing liability
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity, Tax Sharing Liability
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity, Tax Sharing Liability
Other than temporary impairment in investment
Equity Method Investment, Other than Temporary Impairment
Equity earnings, before income tax
Income (Loss) from Equity Method Investments
Equity earnings (losses), net of tax
Income (Loss) From Equity Method Investments, Earnings (Losses) Recorded Net Of Tax
Income (loss) from equity method investments, earnings (losses) recorded net of tax.
Total equity earnings
Distributions from investments
Proceeds from Equity Method Investment, Distribution
Number of reportable segments
Number of Reportable Segments
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate fair value of net liability position
Derivative, Net Liability Position, Aggregate Fair Value
Aggregate fair value of additional collateral
Additional Collateral, Aggregate Fair Value
Schedule of Leases Statement of Financial Position
Schedule of Leases Statement of Financial Position [Table Text Block]
Schedule of Leases Statement of Financial Position [Table Text Block]
Lease, Cost
Lease, Cost [Table Text Block]
Schedule of Cash Flow, Supplemental Disclosures
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Lessee, Operating Lease, Liability, Maturity
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Finance Lease, Liability, Maturity
Finance Lease, Liability, Maturity [Table Text Block]
Schedule of Rent Expense
Schedule of Rent Expense [Table Text Block]
Schedule Of Operating Leases Future Minimum Payments Due
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Lessor, Operating Lease, Payments to be Received, Maturity
Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]
Operating Lease, Lease Income
Operating Lease, Lease Income [Table Text Block]
Schedule Of Estimated Future Payments Under Natural Gas Contracts
Schedule Of Estimated Future Payments Under Natural Gas Contracts [Table Text Block]
Schedule Of Estimated Future Payments Under Natural Gas Contracts [Table Text Block]
Schedule Of Payments Under Natural Gas Contracts
Schedule Of Payments Under Natural Gas Contracts [Table Text Block]
Schedule Of Payments Under Natural Gas Contracts [Table Text Block]
Schedule Of L N G Commitment Amounts
Schedule Of L N G Commitment Amounts [Table Text Block]
Schedule Of L N G Commitment Amounts [Table Text Block]
Schedule Of Estimated Future Payments Under Purchased Power Contracts
Schedule Of Estimated Future Payments Under Purchased Power Contracts [Table Text Block]
Schedule Of Estimated Future Payments Under Purchased Power Contracts [Table Text Block]
Schedule Of Environmental Remediation Costs Capitalized In Period
Schedule Of Environmental Remediation Costs Capitalized In Period [Table Text Block]
Schedule Of Environmental Remediation Costs Capitalized In Period [Table Text Block]
Schedule Of Environmental Remediation Costs, Status Of Remediation Sites
Schedule Of Environmental Remediation Costs Status Of Remediation Sites [Table Text Block]
Schedule Of Environmental Remediation Costs Status Of Remediation Sites [Table Text Block]
Schedule of Environmental Loss Contingencies by Site
Schedule of Environmental Loss Contingencies by Site [Table Text Block]
Debt and Credit Facilities
Debt Disclosure [Text Block]
Regulated Operations [Abstract]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies [Member]
Municipal bonds [Member]
US States and Political Subdivisions Debt Securities [Member]
Other securities [Member]
Other Debt Obligations [Member]
Debt Securities [Member]
Debt Securities [Member]
Equity securities [Member]
Equity Securities [Member]
Cash and cash equivalents [Member]
Cash and Cash Equivalents [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale [Line Items]
Cost
Debt Securities, Available-for-sale, Amortized Cost
Gross unrealized gains
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Gross unrealized losses
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Estimated fair value
Debt Securities, Available-for-sale
Proceeds from sales
Proceeds from Sale of Debt Securities, Available-for-sale
Gross realized gains
Debt Securities, Available-for-sale, Realized Gain
Gross realized losses
Debt Securities, Available-for-sale, Realized Loss
Schedule of General Rate Case [Table]
Schedule of General Rate Case [Table]
General Rate Case Plan [Axis]
General Rate Case Plan [Axis]
General Rate Case Plan [Axis]
General Rate Case Plan [Domain]
General Rate Case Plan [Domain]
[Domain] for General Rate Case Plan [Axis]
2020 GRC FD [Member]
2020 GRC FD [Member]
2020 GRC FD [Member]
2021 GRC FD [Member]
2021 GRC FD [Member]
2021 GRC FD [Member]
Authorized Components [Axis]
Authorized Components [Axis]
Authorized Components [Axis]
Authorized Components [Domain]
Authorized Components [Domain]
[Domain] for Authorized Components [Axis]
O&M [Member]
O&M [Member]
O&M [Member]
Capital-related Costs [Member]
Capital-related Costs [Member]
Capital-related Costs [Member]
General Rate Case [Line Items]
General Rate Case [Line Items]
Revenue increase
General Rate Case, Revenue Requirement, Increase (Decrease) From Prior Year Requirement
General Rate Case, Revenue Requirement, Increase (Decrease) From Prior Year Requirement
Percent increase
General Rate Case, Revenue Requirement, Increase (Decrease) In Percentage From Prior Year Requirement
General Rate Case, Revenue Requirement, Increase (Decrease) In Percentage From Prior Year Requirement
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Electricity [Member]
Electricity [Member]
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
2019 GRC FD [Member]
2019 GRC FD [Member]
2019 GRC FD [Member]
Public Utilities, Regulatory Proceeding [Axis]
Public Utilities, Regulatory Proceeding [Axis]
Public Utilities, Regulatory Proceeding [Domain]
Public Utilities, Regulatory Proceeding [Domain]
General Rate Case [Member]
General Rate Case [Member]
General Rate Case [Member]
Future Refund of Rates to Customers [Member]
Future Refund of Rates to Customers [Member]
Future Refund of Rates to Customers [Member]
Future Refund of Rates to Customers - FERC [Member]
Future Refund of Rates to Customers - FERC [Member]
Future Refund of Rates to Customers - FERC [Member]
GRC revenue requirement
General Rate Case, Revenue Requirement
General Rate Case, Revenue Requirement
General Rate Case, Revenue Requirement, Difference From Requested Amount
General Rate Case, Revenue Requirement, Difference From Requested Amount
General Rate Case, Revenue Requirement, Difference From Requested Amount
GRC requested revenue requirement
General Rate Case, Revenue Requirement Requested
General Rate Case, Revenue Requirement Requested
Regulatory assets
Regulatory Assets
Regulatory assets, noncurrent
Regulatory Assets, Noncurrent
Tracked income tax expense liability
Liability Associated With Tracked Income Tax Expense Differences
Liability Associated With Tracked Income Tax Expense Differences
Regulatory liability
Regulatory Liability
Regulatory Liability.
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Otay Mesa VIE [Member]
Otay Mesa VIE [Member]
Sempra Texas Utilities [Member]
Sempra Texas Utility [Member]
Sempra Texas Utility [Member]
Sempra Mexico [Member]
Sempra Mexico Segment [Member]
Sempra Renewables [Member]
Sempra Renewables Segment [Member]
Variable Interest Entities [Axis]
Variable Interest Entities [Axis]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Classification [Domain]
Noncontrolling Tax Equity Investors [Member]
Noncontrolling Tax Equity Investors [Member]
Noncontrolling Tax Equity Investors [Member]
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Investments [Abstract]
Generating capacity (in mw)
Power Plant, Energy Generating Capacity
Power Plant, Energy Generating Capacity
Put option
Contractual Obligation, Conditional Purchase Requirement
Contractual Obligation, Conditional Purchase Requirement
Equity of Variable interest entity
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Related Disclosures [Abstract]
ASSETS
Assets [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Accounts receivable, net
Receivables, Net, Current
Inventories
Inventory, Net
Total current assets
Assets, Current
Property, plant and equipment, net
Property, Plant and Equipment, Net
Other long-term assets
Other Assets, Noncurrent
Total assets
Assets
Liabilities [Abstract]
Liabilities [Abstract]
Accounts payable
Accounts Payable, Current
Other current liabilities
Other Liabilities, Current
Total current liabilities
Liabilities, Current
Asset retirement obligations
Asset Retirement Obligation
Deferred credits and other
Deferred Credits and Other Liabilities
Total deferred credits and other liabilities
Asset Retirement Obligations And Deferred Credits And Other Liabilities
Asset Retirement Obligations And Deferred Credits And Other Liabilities
Equity [Abstract]
Equity [Abstract]
Other noncontrolling interests
Other Noncontrolling Interests
Total liabilities and equity
Liabilities and Equity
Ownership percentage in consolidated entity
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions
Acquired percentage interest
Business Acquisition, Percentage of Voting Interests Acquired
VIE, carrying amount of assets
Variable Interest Entity, Consolidated, Carrying Amount, Assets
Assets held for sale
Assets Held-for-sale, Not Part of Disposal Group
VIE, liabilities held-for-sale
Liabilities Held-for-Sale, Not Part of Disposal Group
Liabilities Held-for-Sale, Not Part of Disposal Group
VIE, equity amount
Stockholders' Equity Attributable to Noncontrolling Interest
Income Tax Disclosure [Abstract]
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Table]
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Table]
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Non-U.S. [Member]
Foreign Tax Authority [Member]
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
[Line Items] for Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Table]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Income tax expense recognized in current period, related to remeasurement of deferred income tax assets and liabilities
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Assets and Liabilities, Income Tax (Expense) Benefit, Recognized in Period
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Assets and Liabilities, Income Tax (Expense) Benefit, Recognized in Period
Decrease in net deferred income tax liabilities due to remeasurement
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Liability, Income Tax (Expense) Benefit
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Liability, Income Tax (Expense) Benefit
Increase in net regulatory liabilities from remeasurement of deferred tax income tax assets and liabilities
Increase (Decrease) in Regulatory Liabilities
Income tax expense, related to remeasurement of deferred income tax assets and liabilities
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Assets and Liabilities, Income Tax (Expense) Benefit
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Assets and Liabilities, Income Tax (Expense) Benefit
Income tax expense related to deemed repatriation
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit)
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit)
U.S. state and non-U.S. withholding tax expense, related to expected future repatriation of foreign earnings
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings To Be Repatriated, Income Tax Expense (Benefit)
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings To Be Repatriated, Income Tax Expense (Benefit)
Total increase in income tax expense
Tax Cuts and Jobs Act, Income Tax Expense (Benefit)
Income tax benefit related to outside differences on plans to sell businesses
Income Tax Expense (Benefit), Discontinued Operations, Outside Basis Difference Prior To Plan
Income Tax Expense (Benefit), Discontinued Operations, Outside Basis Difference Prior To Plan
Income tax expense related to increase in outside basis differences
Income Tax Expense (Benefit), Discontinued Operations, Outside Basis Difference After To Plan
Income Tax Expense (Benefit), Discontinued Operations, Outside Basis Difference After To Plan
Foreign undistributed earnings
Undistributed Earnings of Foreign Subsidiaries
Undistributed earnings of foreign subsidiaries considered to be indefinitely reinvested
Undistributed Earnings of Foreign Subsidiaries Indefinitely Reinvested
Undistributed Earnings of Foreign Subsidiaries Indefinitely Reinvested
Foreign earnings repatriated
Foreign Earnings Repatriated
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Use of Estimates in the Preparation of the Financial Statements
Use of Estimates, Policy [Policy Text Block]
Subsequent Events
Subsequent Events, Policy [Policy Text Block]
Discontinued Operations
Discontinued Operations, Policy [Policy Text Block]
Effects of Regulation
Public Utilities, Policy [Policy Text Block]
Fair Value Measurements
Fair Value Measurement, Policy [Policy Text Block]
Cash and Cash Equivalents and Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Collection Allowances
Accounts Receivable [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Greenhouse Gas Allowances and Obligations and Emissions and Renewable Energy Certificates
Emission Credits or Allowances, Policy [Policy Text Block]
Property, Plant and Equipment (PP&E)
Property, Plant and Equipment, Policy [Policy Text Block]
Goodwill and Other Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Long-lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Variable Interest Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Asset Retirement Obligations
Asset Retirement Obligation [Policy Text Block]
Contingencies
Commitments and Contingencies, Policy [Policy Text Block]
Legal Fees
Legal Costs, Policy [Policy Text Block]
Comprehensive Income
Comprehensive Income, Policy [Policy Text Block]
Noncontrolling Interests
Noncontrolling Interest Policy [Policy Text Block]
Noncontrolling Interest Policy [Policy Text Block]
Operation and Maintenance Expenses
Selling, General and Administrative Expenses, Policy [Policy Text Block]
Foreign Currency Translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
New Accounting Standards
New Accounting Pronouncements, Policy [Policy Text Block]
Revenue from Contract with Customer
Revenue from Contract with Customer [Policy Text Block]
Business Combinations
Business Combinations Policy [Policy Text Block]
Investments in Noncontrolling Interests
Equity Method Investments [Policy Text Block]
Employee Benefit Plans
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Share-based Compensation
Share-based Payment Arrangement [Policy Text Block]
Derivative Financial Instruments
Derivatives, Policy [Policy Text Block]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Leases
Lessee, Leases [Policy Text Block]
Lessor, Leases
Lessor, Leases [Policy Text Block]
Environmental Costs
Environmental Costs, Policy [Policy Text Block]
Segment Reporting
Segment Reporting, Policy [Policy Text Block]
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues to be recognized
Revenue, Remaining Performance Obligation, Amount
Revenues to be recognized, period of recognition
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Condensed Cash Flow Statement [Table]
Condensed Cash Flow Statement [Table]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Non-controlling interests [Member]
Noncontrolling Interest [Member]
Common Stock [Member]
Common Stock [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash used in operating activities
Net Cash Provided by (Used in) Operating Activities
Expenditures for property, plant and equipment
Payments to Acquire Productive Assets
Expenditures for acquisition
Payments to Acquire Businesses, Net of Cash Acquired
Capital contributions to investees
Payments to Acquire Interest in Subsidiaries and Affiliates
Decrease in loans to affiliate, net
Increase (Decrease) in Due to Related Parties
Expenditures for Merger-related costs
Payments for Merger Related Costs
Other
Payments for (Proceeds from) Other Investing Activities
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Common stock dividends paid
Payments of Ordinary Dividends, Common Stock
Preferred dividends paid
Payments of Ordinary Dividends, Preferred Stock and Preference Stock
Issuances of mandatory convertible preferred stock, net
Proceeds from Issuance of Convertible Preferred Stock
Issuances of common stock, net
Proceeds from Issuance of Common Stock
Repurchases of common stock
Payments for Repurchase of Common Stock
Issuances of long-term debt
Proceeds from Issuance of Long-term Debt
Payments on long-term debt
Repayments of Long-term Debt
Increase (decrease) in loans from affiliates, net
Proceeds from Collection of Long-term Loans to Related Parties
Increase (decrease) in loans from affiliates, net
Payments to Fund Long-term Loans to Related Parties
Payments of Debt Issuance Costs
Payments of Debt Issuance Costs
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
(Decrease) increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents, January 1
Cash and cash equivalents, December 31
SUPPLEMENTAL DISCLOSURE OF NONCASH FINANCING ACTIVITIES
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Accrued Merger-related transaction costs
Noncash Merger Related Costs
Preferred dividends declared but not paid
Dividends, Preferred Stock
Common dividends issued in stock
Common Stock Issued, Employee Stock Trust
Common dividends declared but not paid
Dividends Payable
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Carrying Amount [Member]
Reported Value Measurement [Member]
Fair Value [Member]
Estimate of Fair Value Measurement [Member]
Level 3 [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term amounts due from unconsolidated affiliates
Investments in and Advances to Affiliates, at Fair Value
Long-term amounts due to unconsolidated affiliates
Advances from Affiliates, at Fair Value
Advances from Affiliates, at Fair Value
Total long-term debt
Notes Payable, Fair Value Disclosure
Unamortized discount (net of premium) and debt issuance costs
Unamortized Discount and Debt Issuance Costs
Unamortized Discount and Debt Issuance Costs
Finance lease obligations
Finance Lease, Liability
Capital lease obligations and build-to-suit
Capital Lease Obligations and Build-To-Suit
Capital Lease Obligations and Build-To-Suit
Capital lease obligations
Capital Lease Obligations
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Preferred Class A [Member]
Preferred Class A [Member]
Preferred Class B [Member]
Preferred Class B [Member]
Preferred Stock [Member]
Preferred Stock [Member]
Common Stock [Member]
Common Stock Including Additional Paid in Capital [Member]
Retained earnings [Member]
Retained Earnings [Member]
Accumulated other comprehensive income (loss) [Member]
AOCI Attributable to Parent [Member]
Shareholders' equity [Member]
Parent [Member]
Statement [Line Items]
Statement [Line Items]
Beginning Balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Cumulative-effect adjustment from change in accounting principle
Cumulative Effect of New Accounting Principle in Period of Adoption
Net income
Other comprehensive loss
Other Comprehensive Income (Loss), Net of Tax
Share-based compensation expense
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
Preferred stock dividends declared
Common stock dividends declared
Dividends, Common Stock
Equity contribution from Sempra Energy
Contributions From Parent
Contributions From Parent
Preferred dividends of subsidiary
Preferred Stock Dividends and Other Adjustments
Issuances of stock
Stock Issued During Period, Value, New Issues
Repurchases of common stock
Stock Repurchased During Period, Value
Equity contributed by noncontrolling interests
Noncontrolling Interest, Increase from Subsidiary Equity Issuance
Distributions
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Purchases of noncontrolling interests
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests
Sale of noncontrolling interests, net of offering costs
Noncontrolling Interest, Increase from Sale of Parent Equity Interest
Increase from acquisition from noncontrolling interests
Noncontrolling Interest, Increase from Business Combination
Decrease from divestiture from noncontrolling interests
Noncontrolling Interest, Decrease from Deconsolidation
Ending balance
Jointly Owned Utility Plant Interests [Table]
Jointly Owned Utility Plant Interests [Table]
Project [Axis]
Project [Axis]
Project [Domain]
Project [Domain]
SONGS 1 Decommissioning [Member]
SONGS 1 Decommissioning [Member]
SONGS 1 Decommissioning [Member]
SONGS 2 and 3 Decommissioning [Member]
SONGS 2 and 3 Decommissioning [Member]
SONGS 2 and 3 Decommissioning [Member]
Jointly Owned Utility Plant [Axis]
Jointly Owned Utility Plant [Axis]
Jointly Owned Utility Plant [Domain]
Jointly Owned Utility Plant [Domain]
San Onofre Nuclear Generating Station (SONGS) [Member]
Jointly Owned Nuclear Power Plant [Member]
Regulatory Asset [Axis]
Regulatory Asset [Axis]
Regulatory Asset [Domain]
Regulatory Asset [Domain]
Nuclear Plant Closure [Member]
Asset Retirement Obligation Costs [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant Interests [Line Items]
Ownership percentage
Jointly Owned Utility Plant, Proportionate Ownership Share
Litigation settlement payable
Litigation Settlement, Amount Awarded from Other Party
Percent of arbitration expenses awarded
Litigation Settlement, Percent of Arbitration Expenses
Litigation Settlement, Percent of Arbitration Expenses
Settlement payable net of arbitration expense
Litigation Settlement Amount, Net of Arbitration Expense
Litigation Settlement Amount, Net of Arbitration Expense
Arbitration expense
Arbitration Expense
Arbitration Expense
Legal fees
Legal Fees
Litigation settlement amount allocated to ratepayers and shareholders
Litigation Settlement Amount Allocated to Ratepayers and Shareholders
Litigation Settlement Amount Allocated to Ratepayers and Shareholders
Regulatory asset threshold to cease rate recovery
Regulatory Asset Threshold to Cease Rate Recovery
Regulatory Asset Threshold to Cease Rate Recovery
Receivable for nuclear plant closure
Regulatory Asset, Nuclear Plant Closure
Regulatory Asset, Nuclear Plant Closure.
Regulatory asset, current
Regulatory Assets, Current
Regulatory asset, noncurrent
Period of environmental exit
Environmental Exit Costs, Anticipated Term
Environmental Exit Costs, Anticipated Term
Percentage of environmental exit costs incurred
Environmental Exit Costs, Anticipated Cost, Percentage
Environmental Exit Costs, Anticipated Cost, Percentage
Nuclear decommissioning trust authorized withdrawal amount
Authorized Recovery Amount, Nuclear Decommissioning Trust Funding
Authorized Recovery Amount, Nuclear Decommissioning Trust Funding.
Operating lease renewal period
Lessee, Operating Lease, Renewal Term
Operating lease termination period
Lessee, Operating Lease, Termination Period
Lessee, Operating Lease, Termination Period
Annual increase in rent, percent
Annual Increase in Rent, Percentage
Annual Increase in Rent, Percentage
Right-of-use assets – operating leases
Operating Lease, Right-of-Use Asset
Finance leases, property plant and equipment
Finance Lease, Right-Of-Use Asset, Gross
Finance Lease, Right-Of-Use Asset, Gross
Finance leases, accumulated depreciation
Finance Lease, Right-Of-Use Asset, Accumulated Depreciation
Finance Lease, Right-Of-Use Asset, Accumulated Depreciation
Finance leases, property plant and equipment, net
Finance Lease, Right-of-Use Asset
Total right-of-use assets
Lease, Right-of-Use Asset
Lease, Right-of-Use Asset
Operating lease, other current liabilities
Operating Lease, Liability, Current
Operating lease, deferred credits and other
Operating Lease, Liability, Noncurrent
Total lease liabilities
Operating Lease, Liability
Finance lease, current portion of long-term debt and finance leases
Finance Lease, Liability, Current
Long-term lease liabilities
Finance Lease, Liability, Noncurrent
Total finance leases
Lease liabilities
Lease, Liability
Lease, Liability
Operating lease, weighted-average remaining lease term
Operating Lease, Weighted Average Remaining Lease Term
Finance lease, weighted-average remaining lease term
Finance Lease, Weighted Average Remaining Lease Term
Operating lease, weighted-average discount rate (as a percent)
Operating Lease, Weighted Average Discount Rate, Percent
Finance lease, weighted-average discount rate (as a percent)
Finance Lease, Weighted Average Discount Rate, Percent
Public Utilities General Disclosures [Table]
Public Utilities General Disclosures [Table]
Public Utilities, General Disclosures [Line Items]
Public Utilities, General Disclosures [Line Items]
Penalties Expense
Penalties Expense
Penalties Expense
Penalties Payable
Penalties Payable
Penalties Payable
Penalties Credited to Customers
Penalties Credited to Customers
Penalties Credited to Customers
Days Customers Bills Were Delayed
Days Customers Bills Were Delayed
Days Customers Bills Were Delayed
Penalty Credit Per Customer
Penalty Credit Per Customer
Penalty Credit Per Customer
Quarterly Financial Data [Abstract]
Significant Items Affecting Quarterly Results [Table]
Significant Items Affecting Quarterly Results [Table]
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Disposal Group Held-for-sale [Member]
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Wind Generation Projects [Member]
Wind Generation Projects [Member]
Wind Generation Projects [Member]
Significant Items Affecting Quarterly Results [Line Items]
Significant Items Affecting Quarterly Results [Line Items]
Gain on sale of assets, after tax
Gain (Loss) On Disposition Of Assets, Net Of Tax And Noncontrolling Interests
Gain (Loss) On Disposition Of Assets, Net Of Tax And Noncontrolling Interests
Asset impairment charges
Asset Impairment Charges
Asset impairment charges, net of taxes and noncontrolling interests
Asset Impairment Charges, Net of Taxes and Noncontrolling Interests
Asset Impairment Charges, Net of Taxes and Noncontrolling Interests
Gain on sale of assets, net of tax
Gain (Loss) on Disposition of Assets, Net of Tax
Gain (Loss) on Disposition of Assets, Net of Tax
Investment in RBS Sempra Commodities
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule Of Assets Held for Sale and Deconsolidation of Subsidiaries Table
Disposal Groups, Including Discontinued Operations [Table Text Block]
Category of Item Purchased [Axis]
Category of Item Purchased [Axis]
Long-term Purchase Commitment, Category of Item Purchased [Domain]
Long-term Purchase Commitment, Category of Item Purchased [Domain]
Sunrise Powerlink Construction [Member]
Sunrise Powerlink Construction [Member]
Continental Forge [Member]
Continental Forge [Member]
Continental Forge [Member]
Expected payment
Other Commitment, Due in Next Twelve Months
Expected payment, due in second year
Other Commitment, Due in Second Year
Expected payment, due in third year
Other Commitment, Due in Third Year
Expected payment, due in fourth year
Other Commitment, Due in Fourth Year
Expected payment, due in fifth year
Other Commitment, Due in Fifth Year
Expected payment, thereafter
Other Commitment, Due after Fifth Year
Estimated annual escalation
Long Term Purchase Commitment Estimated Annual Escalation
Contractual commitment annual escalation percentage.
Purchase commitment period
Long-term Purchase Commitment, Period
Present value of future payments
Long Term Purchase Commitment Present Value Regulatory Asset
Contractual commitment present value future payments, regulatory asset.
Amount o natural gas to be sold (MMcf per day)
Amount of Natural Gas to be Sold
Amount of Natural Gas to be Sold
Price index
Long-term Purchase Commitment, Price Index Reduction
Long-term Purchase Commitment, Price Index Reduction
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Southwest Powerlink [Member]
Southwest Powerlink [Member]
Southwest Powerlink [Member]
Southwest Powerlink (SWPL) transmission line [Member]
Jointly Owned Electricity Transmission and Distribution System [Member]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Natural gas operations [Member]
Gas, Transmission and Distribution Equipment [Member]
Electric distribution [Member]
Electric Distribution [Member]
Electric transmission [Member]
Electric Transmission [Member]
Electric generation [Member]
Utility Electric Generation Equipment [Member]
Other electric [Member]
Other Utility Electric Equipment [Member]
Construction work in progress [Member]
Utility Construction In Progress [Member]
Other non-utility [Member]
Other Plant in Service [Member]
Land and land rights [Member]
Land And Land Rights [Member]
Generating plants [Member]
Electric Generation Equipment [Member]
LNG terminals [Member]
L N G Receipt Terminals [Member]
Pipelines and storage [Member]
Pipelines And Storage Equipment [Member]
Other [Member]
Other Machinery and Equipment [Member]
Construction work in progress [Member]
Construction in Progress [Member]
Other [Member]
Other Capitalized Property Plant and Equipment [Member]
Total Other Operating Units And Parent [Member]
Total Other Operating Units And Parent [Member]
Plant, pipeline and other distribution assets of ecogas [Member]
Plant, Pipeline And Other Distribution Assets Of Ecogas [Member]
Leasehold Improvements [Member]
Leasehold Improvements [Member]
Weighted Average [Member]
Weighted Average [Member]
Other Operating Units and Parent [Member]
Other Operating Units and Parent [Member]
Other Operating Units and Parent [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property, plant and equipment
Property, Plant and Equipment, Gross
Depreciation rates (percentage)
Public Utilities, Property, Plant and Equipment, Disclosure of Composite Depreciation Rate for Plants in Service
Estimated useful life
Property, Plant and Equipment, Useful Life
Ownership interest
Noncontrolling Interest, Ownership Percentage by Parent
Capital leased assets
Capital Leased Assets, Gross
Leasehold Improvements, Gross
Leasehold Improvements, Gross
Depreciation expense
Depreciation
Accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated depreciation of capital leased assets
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation
Derivative Financial Instruments
Derivative Instruments and Hedging Activities Disclosure [Text Block]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Allowance balance at January 1
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Provisions for uncollectible accounts
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Write-offs of uncollectible accounts
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Allowance balance at December 31
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Interbank Equilibrium Rate [Member]
Interbank Equilibrium Rate [Member]
Interbank Equilibrium Rate [Member]
LIBOR [Member]
London Interbank Offered Rate (LIBOR) [Member]
ESJ joint venture [Member]
ESJ joint venture [Member]
TAG Pipeline Norte [Member]
TAG JV Notes [Member]
TAG JV Notes [Member]
TAG JV Notes [Member]
Due to/from Sempra Energy [Member]
Majority Shareholder [Member]
Due to/from SoCalGas [Member]
Subsdiary Of Common Parent So Cal Gas [Member]
Due to/from Various Affiliates [Member]
Subsidiary Of Common Parent Other Affiliates [Member]
Due to/from SDGE [Member]
Subsidiary Of Common Parent S D G E [Member]
Other related parties [Member]
Affiliate Of Investee [Member]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Due from unconsolidated affiliates - current
Due from Affiliate, Current
Due from unconsolidated affiliates - noncurrent
Due from Affiliate, Noncurrent
Due to unconsolidated affiliates - current
Due to Affiliate, Current
Due to unconsolidated affiliates, noncurrent
Due to Affiliate, Noncurrent
Income taxes due to Sempra Energy
Related Party Tax Expense, Due to Affiliates, Current
Income taxes due from Sempra Energy
Related Party Tax Expense, Due from Affiliates, Current
Variable percentage rate
Debt Instrument, Basis Spread on Variable Rate
Related party transaction rate
Related Party Transaction, Rate
Debt Instrument, Interest Rate, Stated Percentage
Debt Instrument, Interest Rate, Stated Percentage
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-02 [Member]
Accounting Standards Update 2016-02 [Member]
Accounting Standards Update 2016-13 [Member]
Accounting Standards Update 2016-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other long-term assets
Other Assets, Current
Deferred income taxes
Deferred Income Tax Liabilities, Net
Other current liabilities
Long-term debt and finance leases
Long-term Debt, Excluding Current Maturities
Retained earnings
Retained Earnings (Accumulated Deficit)
Accounts receivable – trade, net
Accounts Receivable, after Allowance for Credit Loss, Noncurrent
Due from unconsolidated affiliates – noncurrent
Due from Related Parties, Noncurrent
Cash paid for operating leases
Operating Lease, Payments
Cash paid for finance leases
Finance Lease, Interest Payment on Liability
Cash paid for finance leases
Finance Lease, Principal Payments
Increase in operating lease obligations for right-of-use assets
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Increase in finance lease obligations for investment in property, plant and equipment
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Designated as Hedging Instrument [Member]
Designated as Hedging Instrument [Member]
Not Designated as Hedging Instrument [Member]
Not Designated as Hedging Instrument [Member]
Current assets: Other [Member]
Other Current Assets [Member]
Other assets: Other long-term assets [Member]
Other Noncurrent Assets [Member]
Current liabilities: Other [Member]
Other Current Liabilities [Member]
Deferred credits and other liabilities: Deferred credits and other [Member]
Other Noncurrent Liabilities [Member]
Derivative Instruments in Hedges, at Fair Value, Net [Abstract]
Derivative Instruments in Hedges, at Fair Value, Net [Abstract]
Interest rate and foreign exchange instruments
Derivative Interest Rate And Foreign Exchange Instruments Designated
Interest rate instruments designated as hedging instruments.
Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract]
Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract]
Foreign exchange instruments
Derivative Instruments, Foreign Exchange Instruments
Derivative Instruments, Foreign Exchange Instruments
Associated offsetting foreign exchange instruments
Derivative Offsetting Foreign Exchange Contracts
Derivative Offsetting Foreign Exchange Contracts
Commodity contracts not subject to rate recovery
Derivative Commodity Contracts Not Subject To Rate Recovery Nondesignated
Derivative commodity contracts not subject to rate recovery, nondesignated.
Associated offsetting commodity contracts not subject to rate recovery
Derivative Offsetting Commodity Contracts Not Subject To Rate Recovery Nondesignated
Associated offsetting commodity contracts not subject to rate recovery.
Commodity contracts subject to rate recovery
Derivative Commodity Contracts Subject To Rate Recovery Nondesignated
Derivative commodity contracts subject to rate recovery, nondesignated.
Associated offsetting commodity contracts subject to rate recovery
Derivative Offsetting Commodity Contracts Subject To Rate Recovery Nondesignated
Associated cash collateral commodity contracts subject to rate recovery.
Associated cash collateral commodity contracts subject to rate recovery
Associated cash collateral commodity contracts subject to rate recovery
Associated offsetting commodity contracts subject to rate recovery.
Net amount presented on balance sheet
Other Derivatives As Hedging Instruments At Fair Value Net Before Cash Collateral
Other derivatives as hedging instruments at fair value net before cash collateral.
Additional margin posted for commodity contracts not subject to rate recovery
Additional Margin Posted For Commodity Contracts Not Subject to Rate Recovery
Additional margin posted for commodity contracts not subject to rate recovery.
Additional margin posted for commodity contracts subject to rate recovery
Additional Margin Posted For Commodity Contracts Subject to Rate Recovery
Additional margin posted for commodity contracts subject to rate recovery.
Total
Derivative Instruments in Hedges, at Fair Value, Net
Statement of Financial Position [Abstract]
Disposal Group, Not Discontinued Operations [Member]
Disposal Group, Not Discontinued Operations [Member]
Discontinued Operations, Held-for-sale [Member]
Discontinued Operations, Held-for-sale [Member]
Investment [Axis]
Investment [Axis]
Investment [Domain]
Investment [Domain]
Series A Preferred Stock [Member]
Series A Preferred Stock [Member]
Series B Preferred Stock [Member]
Series B Preferred Stock [Member]
Entity [Domain]
Current assets:
Assets, Current [Abstract]
Restricted cash
Restricted Cash and Cash Equivalents, Current
Accounts receivable – trade, net
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts receivable – other, net
Accounts and Other Receivables, Net, Current
Due from unconsolidated affiliates
Income taxes receivable
Income Taxes Receivable, Current
Prepaid expenses
Prepaid Expense, Current
Regulatory assets
Fixed-price contracts and other derivatives
Derivative Asset, Current
Greenhouse gas allowances
Greenhouse Gas Allowances, Current
Greenhouse Gas Allowances, Current
Assets held for sale
Disposal Group, Including Discontinued Operation, Assets, Current
Other current assets
Other assets:
Assets, Noncurrent [Abstract]
Restricted cash
Restricted Cash and Cash Equivalents, Noncurrent
Due from unconsolidated affiliates
Regulatory assets
Nuclear decommissioning trusts
Decommissioning Fund Investments
Investment in Oncor Holdings
Other intangible assets
Intangible Assets, Net (Excluding Goodwill)
Insurance receivable for Aliso Canyon costs
Insurance Settlements Receivable, Noncurrent
Deferred income taxes
Deferred Income Tax Assets, Net
Greenhouse gas allowances
Greenhouse Gas Allowances, Noncurrent
Greenhouse Gas Allowances, Noncurrent
Prepaid Insurance Fund Asset, Noncurrent
Prepaid Insurance Fund Asset, Noncurrent
Prepaid Insurance Fund Asset, Noncurrent
Assets held for sale in discontinued operations
Disposal Group, Including Discontinued Operation, Assets, Noncurrent
Total other assets
Total Investments And Other Assets
Total investments and other assets.
Property, plant and equipment:
Property, Plant and Equipment, Net [Abstract]
Less accumulated depreciation and amortization
Property, plant and equipment, net
Liabilities and Equity [Abstract]
Liabilities and Equity [Abstract]
Liabilities, Current [Abstract]
Liabilities, Current [Abstract]
Short-term debt
Short-term Debt
Accounts payable – trade
Accounts Payable, Trade, Current
Accounts payable – other
Accounts Payable, Other, Current
Due to unconsolidated affiliates
Dividends and interest payable
Interest and Dividends Payable, Current
Accrued compensation and benefits
Employee-related Liabilities, Current
Regulatory liabilities
Regulatory Liability, Current
Accrued franchise fees
Other Accrued Liabilities, Current
Current portion of long-term debt and finance leases
Long-term Debt and Lease Obligation, Current
Contract with Customer, Liability, Current
Contract with Customer, Liability, Current
Asset retirement obligations
Asset Retirement Obligation, Current
Greenhouse gas obligations
Greenhouse Gas Obligations, Current
Greenhouse Gas Obligations, Current
Liabilities held for sale in discontinued operations
Disposal Group, Including Discontinued Operation, Liabilities, Current
Long-term debt and finance leases
Long-term Debt and Lease Obligation
Deferred Credits and Other Liabilities [Abstract]
Deferred Credits and Other Liabilities [Abstract]
Due to unconsolidated affiliates
Pension and other postretirement benefit plan obligations, net of plan assets
Liability, Defined Benefit Plan, Noncurrent
Pension obligation, net of plan assets
Pension obligation, net of plan assets
Pension obligation, net of plan assets.
Deferred investment tax credits
Accumulated Deferred Investment Tax Credit
Regulatory liabilities
Regulatory Liability, Noncurrent
Asset retirement obligations
Asset Retirement Obligations, Noncurrent
Greenhouse gas obligations
Greenhouse Gas Obligations, Noncurrent
Greenhouse Gas Obligations, Noncurrent
Liabilities held for sale in discontinued operations
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent
Total deferred credits and other liabilities
Liabilities, Other than Long-term Debt, Noncurrent
Commitments and contingencies (Note 16)
Commitments and Contingencies
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock
Preferred Stock, Value, Issued
Common stock
Common Stock, Value, Issued
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total shareholders’ equity
Stockholders' Equity Attributable to Parent
Preferred stock of subsidiary
Noncontrolling Interest, Amount Represented by Preferred Stock
Total equity
Noncontrolling Interest [Table]
Noncontrolling Interest [Table]
Bay Gas [Member]
Bay Gas [Member]
Bay Gas [Member]
IEnova [Member]
Infraestructura Energética Nova [Member]
Infraestructura Energética Nova [Member]
Ventika [Member]
Ventika Wind Power Generation Facilities [Member]
Ventika Wind Power Generation Facilities [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest [Line Items]
Stock repurchased during the period (in shares)
Stock Repurchased During Period, Shares
Stock repurchased in the period
Cash consideration (fair value of total consideration)
Payments to Acquire Businesses, Gross
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Sale of Interest by Parent, Percent
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Sale of Interest by Parent, Percent
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Sale of Interest by Parent, Percent
Preferred Stock
Preferred Stock [Text Block]
Property, plant and equipment, net related to VIE
Variable Interest Entities Consolidated Carrying Amount Net Property Plant And Equipment
Variable interest entities consolidated carrying amount net property plant and equipment.
Long-term debt, VIE
Variable Interest Entities Consolidated Carrying Amount Long Term Debt
Variable interest entities consolidated carrying amount long term debt.
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, percent
Preferred Stock, Dividend Rate, Percentage
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
SAN ONOFRE NUCLEAR GENERATING STATION
Public Utilities Disclosure [Text Block]
Schedule I - Condensed Financial Information of Parent
Condensed Financial Information of Parent Company Only Disclosure [Text Block]
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Cash Provided by (Used in) Operating Activities [Abstract]
Less: (Income) loss from discontinued operations, net of income tax
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income from continuing operations, net of income tax
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Utilities Operating Expense, Depreciation and Amortization
Deferred income taxes and investment tax credits
Deferred Income Taxes and Tax Credits
Impairment losses
Other Asset Impairment Charges
Gain on sale of assets
Equity earnings
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
Share-based compensation expense
Share-based Payment Arrangement, Noncash Expense
Other
Other Noncash Income (Expense)
Net change in other working capital components:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts and Notes Receivable
Due to/from affiliates, net
Increase (Decrease) Due from Affiliates
Income taxes receivable/payable, net
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable
Inventories
Increase (Decrease) in Inventories
Other current assets
Increase (Decrease) in Other Operating Assets
Accounts payable
Increase (Decrease) in Accounts Payable
Regulatory balancing accounts
Increase (Decrease) in Balancing Account, Utility
Reserve for Aliso Canyon costs
Reserve for Aliso Canyon costs
Net change in reserve for Aliso Canyon costs
Other current liabilities
Increase (Decrease) in Other Operating Liabilities
Intercompany activities with discontinued operations, net
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Operating Activities
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Operating Activities
Insurance receivable for Aliso Canyon costs
Increase (Decrease) in Insurance Settlements Receivable
Wildfire fund, current and noncurrent
Increase (Decrease) In Prepaid Insurance Fund Asset
Increase (Decrease) In Prepaid Insurance Fund Asset
Changes in other noncurrent assets and liabilities, net
Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net
Net cash provided by continuing operations
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Net cash provided by discontinued operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Net cash provided by operating activities
CASH FLOWS FROM INVESTING ACTIVITIES
Net Cash Provided by (Used in) Investing Activities [Abstract]
Expenditures for property, plant and equipment
Expenditures for investments and acquisitions, net of cash and cash equivalents acquired
Payments to Acquire Investments
Proceeds from sale of assets
Proceeds from Sale of Productive Assets
Decrease in cash from deconsolidation of Otay Mesa VIE
Cash Divested from Deconsolidation
Purchases of nuclear decommissioning trust assets
Payments to Acquire Investments to be Held in Decommissioning Trust Fund
Proceeds from sales of nuclear decommissioning trust assets
Proceeds from Decommissioning Trust Fund Assets
Repayments of advances to unconsolidated affiliates
Intercompany activities with discontinued operations, net
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Investing Activities
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Investing Activities
Other
Net cash used in continuing operations
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Net cash used in discontinued operations
Cash Provided by (Used in) Investing Activities, Discontinued Operations
CASH FLOWS FROM FINANCING ACTIVITIES
Net Cash Provided by (Used in) Financing Activities [Abstract]
Common dividends paid
Equity contribution from Sempra Energy
Proceeds from Contributed Capital
Preferred dividends paid
Issuances of debt (maturities greater than 90 days)
Payments on debt (maturities greater than 90 days) and finance leases
Increase (decrease) in short-term debt, net
Proceeds from (Repayments of) Short-term Debt, Maturing in Three Months or Less
Advances from unconsolidated affiliates
Proceeds from Contributions from Affiliates
Proceeds from sale of noncontrolling interests, net
Proceeds from sale of noncontrolling interest, net of offering costs.
Proceeds from sale of noncontrolling interest, net of offering costs.
Payments To Acquire Noncontrolling Interest
Payments To Acquire Noncontrolling Interest
Payments To Acquire Noncontrolling Interest
Distributions to noncontrolling interest, net
Payments to Noncontrolling Interests
Contributions from noncontrolling interests, net
Proceeds from Noncontrolling Interests
Intercompany activities with discontinued operations, net
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Financing Activities
Increase (Decrease) in Intercompany Activities with Discontinued Operations Net, Financing Activities
Debt issuance costs
Other
Proceeds from (Payments for) Other Financing Activities
Net cash provided by continuing operations
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Net cash (used in) provided by discontinued operations
Cash Provided by (Used in) Financing Activities, Discontinued Operations
Effect of exchange rate changes on cash, cash equivalents and restricted cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Effect of exchange rate changes in discontinued operations
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Disposal Group, Including Discontinued Operations
Effect of exchange rate changes on cash, cash equivalents and restricted cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations
Decrease in cash, cash equivalents and restricted cash, including discontinued operations
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash, cash equivalents and restricted cash, including discontinued operations, January 1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations
Cash, cash equivalents and restricted cash, including discontinued operations, December 31
Cash, cash equivalents and restricted cash, January 1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash, cash equivalents and restricted cash, December 31
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Supplemental Cash Flow Information [Abstract]
Interest payments, net of amounts capitalized
Interest Paid, Excluding Capitalized Interest, Operating Activities
Income tax payments (refunds), net
Income Taxes Paid, Net
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Noncash acquisition of businesses:
Assets acquired, net of cash and cash equivalents acquired
Fair Value of Assets Acquired
Value of equity method investment immediately prior to acquisition
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value
Liabilities assumed
Liabilities Assumed
Cash paid, net of cash and cash equivalents acquired
Other Noncash Investing and Financing Items [Abstract]
Noncash Investing and Financing Items [Abstract]
Accrued interest receivable from unconsolidated affiliate
Accrued Investment Income Receivable
Accrued capital expenditures
Capital Expenditures Incurred but Not yet Paid
Accrued commercial paper proceeds
Accrued Proceeds From Issuance Of Commercial Paper
Accrued Proceeds From Issuance Of Commercial Paper
Dividends declared but not paid
Risk Mitigating Assets [Member]
Risk Mitigating Assets [Member]
Risk Mitigating Assets [Member]
Long Credit [Member]
Long Credit [Member]
Retirement Plan Funding Status [Axis]
Retirement Plan Funding Status [Axis]
Retirement Plan Funding Status [Domain]
Retirement Plan Funding Status [Domain]
Unfunded Plan [Member]
Unfunded Plan [Member]
Funded Plan [Member]
Funded Plan [Member]
Retiree [Axis]
Retiree [Axis]
Retiree [Domain]
Retiree [Domain]
Pre-65Retiree [Member]
Pre-65Retiree [Member]
Retiree Aged 65 or Older [Member]
Retiree Aged 65 or Older [Member]
Targeted plan asset allocations
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
CHANGE IN PROJECTED BENEFIT OBLIGATION
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Net obligation at January 1
Defined Benefit Plan, Benefit Obligation
Service cost
Defined Benefit Plan, Service Cost
Interest cost
Defined Benefit Plan, Interest Cost
Contributions from plan participants
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Actuarial loss (gain)
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Benefit payments
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Special termination benefits
Acquisition
Settlements
Transfer of liability from other plans
Defined Benefit Plan, Transfers, Benefit Obligation
Defined benefit plan, transfers, benefit obligation.
Net obligation at December 31
CHANGE IN PLAN ASSETS
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1
Actual return on plan assets
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Employer contributions
Defined Benefit Plan, Plan Assets, Contributions by Employer
Contributions from plan participants
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant
Benefit payments
Defined Benefit Plan, Plan Assets, Benefits Paid
Settlements
Transfer of assets from other plans
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan
Net recorded (liability) asset at December 31
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Net recorded (liability) asset at December 31
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position
Liability, Defined Benefit Plan [Abstract]
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets
Assets for Plan Benefits, Defined Benefit Plan
Current liabilities
Liability, Defined Benefit Plan, Current
Noncurrent liabilities
Net recorded (liability) asset
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Net actuarial (loss) gain
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax
Prior service cost
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax
Total
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Accumulated benefit obligation
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Fair value of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets
Accumulated benefit obligation
Defined Benefit Plan, Accumulated Benefit Obligation
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Expected return on assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Amortization of Prior service cost (credit)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Amortization of actuarial loss (gain)
Defined Benefit Plan, Amortization of Gain (Loss)
Settlement charges
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment
Special termination benefits
Defined Benefit Plan, Recognized Net (Gain) Loss Due To Special Termination Benefits
Defined benefit plan, special termination benefits.
Net periodic benefit cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Regulatory adjustment
Defined Benefit Plan Regulatory Adjustment
Defined benefit plan, regulatory adjustment.
Total expense recognized
Defined Benefit Plan, Expense
Defined Benefit Plan, Expense
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract]
Net loss (gain)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax
Prior service cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax
Transfer of actuarial loss
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Transfers, After Tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Transfers, After Tax
Transfer of prior service cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Transfers, Before Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Transfers, Before Tax
Amortization of actuarial loss
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
Amortization of prior service cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Settlements
Total recognized in OCI
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax
Total recognized in net periodic benefit cost and OCI
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Interest crediting rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Interest Crediting Rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Interest Crediting Rate
Rate of compensation increase
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Expected return on plan assets
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets
Interest crediting rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Interest Crediting Rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Interest Crediting Rate
Rate of compensation increase
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
ASSUMED HEALTH CARE COST TREND RATES
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Health care cost trend rate assumed for next year
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Rate to which the cost trend rate is assumed to decline (the ultimate trend)
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
EXPECTED CONTRIBUTIONS
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rate [Abstract]
Expected employer contributions
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
EXPECTED BENEFIT PAYMENTS
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2020
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months
2021
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
2022
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
2023
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
2024
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
2025-2029
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter
Asset allocations
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage
Share-based Payment Arrangement, Noncash Expense [Abstract]
Schedule Of Share-based Compensation Expense
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule Of Non-qualified Stock Options
Schedule Of Non Qualified Stock Options [Table Text Block]
Schedule Of Non Qualified Stock Options [Table Text Block]
Schedule Of Restricted Stock Awards And Units Valuation Assumptions
Schedule Of Restricted Stock Awards And Units Valuation Assumptions [Table Text Block]
Schedule Of Restricted Stock Awards And Units Valuation Assumptions [Table Text Block]
Schedule Of Restricted Stock Units
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
Deferred Tax Assets And Liabilities [Table]
Deferred Tax Assets And Liabilities [Table]
Sempra Energy Consolidated [Member]
Sempra Energy Consolidated [Member]
Deferred Tax Assets And Liabilities [Line Items]
Deferred Tax Assets And Liabilities [Line Items]
Components of Deferred Tax Assets [Abstract]
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Liabilities, Net [Abstract]
Deferred Tax Liabilities, Net [Abstract]
Deferred income tax liabilities:
Deferred Tax Liabilities, Gross [Abstract]
Differences in financial and tax bases of fixed assets, investments and other assets
Deferred Tax Liabilities, Property, Plant and Equipment
U.S. state and non-U.S. withholding tax on repatriation of foreign earnings
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings, Deferred Tax Liability
Tax Cuts and Jobs Act of 2017, Transition Tax for Accumulated Foreign Earnings, Deferred Tax Liability
Regulatory balancing accounts
Deferred Tax Liabilities, Regulatory Balancing Accounts
Deferred tax liabilities, regulatory balancing accounts.
Right-of-use assets – operating leases
Deferred Tax Liabilities, Operating Lease, Right-of-Use Asset
Deferred Tax Liabilities, Operating Lease, Right-of-Use Asset
Property taxes
Deferred Tax Liabilities, Property Taxes
Deferred tax liabilities, property taxes.
Other deferred income tax liabilities
Deferred Tax Liabilities, Other
Total deferred income tax liabilities
Deferred Tax Liabilities, Gross
Deferred income tax assets:
Deferred Tax Assets, Gross [Abstract]
Tax credits
Deferred Tax Assets, Tax Credit Carryforwards, General Business
Net operating losses
Deferred Tax Assets, Operating Loss Carryforwards
Postretirement benefits
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits
Compensation-related items
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other
Operating lease liabilities
Deferred Tax Assets, Operating Lease, Liability
Deferred Tax Assets, Operating Lease, Liability
Other deferred income tax assets
Deferred Tax Assets, Other
Accrued expenses not yet deductible
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves
State income taxes
Deferred Tax Assets, State Income Taxes
Deferred tax assets, state income taxes.
Deferred income tax assets before valuation allowances
Deferred Tax Assets, Gross
Less: valuation allowances
Deferred Tax Assets, Valuation Allowance
Total deferred income tax assets
Deferred Tax Assets, Net of Valuation Allowance
Net deferred income tax liability
Deferred Tax Liabilities, Net
Deferred income taxes, noncurrent
Schedule Of Equity Method And Other Investments
Investment Holdings, Schedule of Investments [Table Text Block]
Schedule of Summarized Financial Information
Condensed Financial Statements [Table Text Block]
Income Taxes
Income Tax Disclosure [Text Block]
Recurring Fair Value Measures Table
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Recurring Fair Value Measures Level 3 Rollforward Table
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Schedule of Auction Price Inputs
Schedule of Auction Price Inputs [Table Text Block]
Schedule of Auction Price Inputs [Table Text Block]
Fair Value of Financial Instruments Table
Fair Value, by Balance Sheet Grouping [Table Text Block]
Fair Value Measurements, Nonrecurring Table
Fair Value Measurements, Nonrecurring [Table Text Block]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Redemption Term [Axis]
Redemption Term [Axis]
Redemption Term [Axis]
Redemption Term [Domain]
Redemption Term [Domain]
[Domain] for Redemption Term [Axis]
On Or After October 1, 2024 [Member]
On Or After October 1, 2024 [Member]
On Or After October 1, 2024 [Member]
Before October 1, 2024, Amended Tax Regulations [Member]
Before October 1, 2024, Amended Tax Regulations [Member]
Before October 1, 2024, Amended Tax Regulations [Member]
Before October 1, 2024, Equity Credit Methodology Update [Member]
Before October 1, 2024, Equity Credit Methodology Update [Member]
Before October 1, 2024, Equity Credit Methodology Update [Member]
Derivative Instrument, Interest Rate Hedge Maturity in 2034 [Member]
Derivative Instrument, Interest Rate Hedge Maturity in 2034 [Member]
Derivative Instrument, Interest Rate Hedge Maturity in 2034 [Member]
Sempra U.S. Businesses [Member]
Sempra U.S. Businesses [Member]
Sempra U.S. Businesses [Member]
OMEC LLC [Member]
OMEC LLC [Member]
OMEC LLC [Member]
Bonds [Member]
Bonds [Member]
Secured Debt [Member]
Secured Debt [Member]
Junior Subordinated Debt [Member]
Junior Subordinated Debt [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Floating Rate Notes Due Twenty Nineteen [Member]
Floating Rate Notes Due Twenty Nineteen [Member]
Floating Rate Notes Due Twenty Nineteen [Member]
Floating Rate Notes Due Twenty Twenty One [Member]
Floating Rate Notes Due Twenty Twenty One [Member]
Floating Rate Notes Due Twenty Twenty One [Member]
FirstMortgageBondsDueJune2049 [Member]
FirstMortgageBondsDueJune2049 [Member]
FirstMortgageBondsDueJune2049 [Member]
December 2018 OMEC Loan Agreement [Member]
December 2018 OMEC Loan Agreement [Member]
December 2018 OMEC Loan Agreement [Member]
IEnova Loan Agreement [Member]
IEnova Loan Agreement [Member]
IEnova Loan Agreement [Member]
Variable-Rate Loan. Due August 2024 [Member]
Variable-Rate Loan. Due August 2024 [Member]
Variable-Rate Loan. Due August 2024 [Member]
First Mortgage Bonds, Due June 2050 [Member]
First Mortgage Bonds, Due June 2050 [Member]
First Mortgage Bonds, Due June 2050 [Member]
Junior Subordinated Notes Due 2079 [Member]
Junior Subordinated Notes Due 2079 [Member]
Junior Subordinated Notes Due 2079 [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Lines of Credit Facility, Number of Lenders
Lines of Credit Facility, Number of Lenders
Lines of Credit Facility, Number of Lenders
Line of Credit Facility, Lenders, Percent of Facility
Line of Credit Facility, Lenders, Percent of Facility
Line of Credit Facility, Lenders, Percent of Facility
Line Of Credit Facility, Maximum Ratio Of Indebtedness To Total Capitalization
Line Of Credit Facility, Maximum Ratio Of Indebtedness To Total Capitalization
Committed lines of credit, maximum ratio of indebtedness to total capitalization.
Letters of credit outstanding
Letters of Credit Outstanding, Amount
Weighted average interest rate on total short-term debt outstanding
Short-term Debt, Weighted Average Interest Rate, at Point in Time
Unsecured debt
Unsecured Debt
Callable long-term debt, not subject to make-whole provisions
Callable Long-term Debt
Callable long-term debt.
First mortgage bonds available for future issuance
First Mortgage Bonds, Amount Available For Future Issuance
First mortgage bonds amount available for future issuance.
Stated percentage rate
Debt Instrument, Face Amount, Per Note
Debt Instrument, Face Amount, Per Note
Debt Instrument, Face Amount, Per Note
Gross long-term debt
Long-term Debt, Gross
Debt amount
Debt Instrument, Face Amount
Basis spread on variable percentage rate
Notional amount of derivative liability
Derivative Liability, Notional Amount
Fixed interest rate after floating to fixed interest rate swaps
Derivative, Fixed Interest Rate
Line of credit
Proceeds from Debt, Net of Issuance Costs
Proceeds from Debt, Net of Issuance Costs
Debt Issuance Costs, Gross
Debt Issuance Costs, Gross
Term of contract
Debt Instrument, Term
Debt Instrument, Redemption Price, Percentage
Debt Instrument, Redemption Price, Percentage
Proceeds from (Repayments of) Debt
Proceeds from (Repayments of) Debt
Otay Mesa VIE [Member]
Ownership Interests Held By Others, Otay Mesa VIE [Member]
IEnova subsidiaries
Ownership Interests Held By Others, IEnova, Subsidiary Two [Member]
Ownership Interests Held By Others, IEnova, Subsidiary Two [Member]
Tax equity arrangement – wind [Member]
Noncontrolling Tax Equity Investors, Wind Generation [Member]
Noncontrolling Tax Equity Investors, Wind Generation [Member]
PXISE Energy Solutions LLC [Member]
PXISE Energy Solutions LLC [Member]
PXISE Energy Solutions LLC [Member]
Bay Gas Storage Company [Member]
Ownership Interests Held By Others, Bay Gas Storage Company [Member]
Liberty Gas Storage [Member]
Ownership Interests Held By Others, Liberty Gas Storage [Member]
ECA LNG JV [Member]
Ownership Interests Held By Others, ECS LNG Liquefaction Project [Member]
Ownership Interests Held By Others, ECS LNG Liquefaction Project [Member]
Chilquinta Energia subsidiaries [Member]
Ownership Interests Held By Others, Chilquinta Energia [Member]
Luz Del Sur [Member]
Ownership Interests Held By Others, Luz Del Sur [Member]
Tecsur [Member]
Ownership Interests Held By Others, Tecsur [Member]
Corporate and Other [Member]
Corporate and Other [Member]
Ownership percentage held by noncontrolling owners
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Operating lease costs
Operating Lease, Cost
Amortization of ROU assets
Finance Lease, Right-of-Use Asset, Amortization
Interest on lease liabilities
Finance Lease, Interest Expense
Total finance lease costs
Finance Lease, Cost
Finance Lease, Cost
Short-term lease costs
Short-term Lease, Cost
Variable lease costs
Variable Lease, Cost
Total lease costs
Lease, Cost
Contract with Customer, Asset and Liability [Table]
Contract with Customer, Asset and Liability [Table]
Contract with Customer, Asset and Liability [Table]
Other Current Liabilities [Member]
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]
Contract with Customer, Liability [Roll Forward]
Contract with Customer, Liability [Roll Forward]
Contract with Customer, Liability [Roll Forward]
Beginning balance
Contract with Customer, Liability
Adoption of ASC 606 adjustment
Contract with Customer, Liability, Adoption of Topic 606
Contract with Customer, Liability, Adoption of Topic 606
Revenue from performance obligations satisfied during reporting period
Contract with Customer, Liability, Revenue Recognized
Payments received in advance
Contract with Customer, Advance Payments Received
Contract with Customer, Advance Payments Received
Ending balance
Schedule of Regulatory Assets
Schedule of Regulatory Assets [Table Text Block]
Schedule of Regulatory Liabilities
Schedule of Regulatory Liabilities [Table Text Block]
Proposed Revenue Requirements
Public Utilities General Disclosures [Table Text Block]
Schedule Of FERC Cost Of Capital Table
Schedule Of FERC Cost Of Capital Table [Table Text Block]
Schedule Of FERC Cost Of Capital Table [Table Text Block]
Earnings Per Share [Abstract]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Stock options, RSAs and RSUs [Member]
Stock options, RSAs and RSUs [Member]
Stock options, RSAs and RSUs [Member]
Convertible Preferred Stock
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of EPS
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
INVESTMENTS IN UNCONSOLIDATED ENTITIES
Equity Method Investments and Joint Ventures Disclosure [Text Block]
Preferred Stock [Table]
Preferred Stock [Table]
Sale of Stock [Axis]
Sale of Stock [Axis]
Sale of Stock [Domain]
Sale of Stock [Domain]
Over-Allotment Option [Member]
Over-Allotment Option [Member]
So Cal Gas Series Preferred Stock [Member]
So Cal Gas Series Preferred Stock [Member]
Twenty Five Dollar Par, Six Percent Series [Member]
Twenty Five Dollar Par, Six Percent Series [Member]
Twenty Five Dollar Par, Six Percent Series A [Member]
Twenty Five Dollar Par, Six Percent Seriesa [Member]
So Cal Gas Preferred Stock Owned By Pacific Enterprises [Member]
Six Percent Series Preferred Stock [Member]
Six Percent Series Preferred Stock [Member]
Preferred Stock Of Subsidiaries [Member]
Preferred Stock Of Subsidiaries [Member]
Preferred Stock [Line Items]
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)
Number of preferred stock shares outstanding (in shares)
Shares issued (in shares)
Stock Issued During Period, Shares, New Issues
Conversion price per share (in dollars per share)
Debt Instrument, Convertible, Conversion Price
Conversion price per share net of underwriting discount (in dollars per share)
Debt Instrument, Convertible, Conversion Price, Net of Underwriting Discount
Debt Instrument, Convertible, Conversion Price, Net of Underwriting Discount
Liquidation preference (in dollars per share)
Preferred Stock, Liquidation Preference Per Share
Value of shares issued
Underwriting discount
Payments for Underwriting Expense
Threshold appreciation price (in dollars per share)
Debt Instrument, Convertible, Stock Price Trigger
Shares issuable for each instrument
Debt Instrument, Convertible, Conversion Ratio
Number of shares issuable
Debt Instrument, Convertible, Number of Equity Instruments
Share dividends issued, percentage of weighted average share price
Dividends, Paid in Shares, Percentage of Weighted Average Share Price
Dividends, Paid in Shares, Percentage of Weighted Average Share Price
Par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock outstanding
Preferred Stock, Value, Outstanding
Preferred stock outstanding held by parent
Preferred Stock Owned By Parent, Value, Outstanding
Preferred Stock Owned By Parent, Value, Outstanding
Accounting Standards Update 2018-02 [Member]
Accounting Standards Update 2018-02 [Member]
Regulatory Liability, Noncurrent
ACQUISTIONS, DIVESTITURES AND DISCONTINUED OPERATIONS
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Income Tax Expense (Benefit), Continuing Operations [Table]
Income Tax Expense (Benefit), Continuing Operations [Table]
Income Tax Expense (Benefit), Continuing Operations [Line Items]
Income Tax Expense (Benefit), Continuing Operations [Line Items]
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S.
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Non-U.S.
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. federal
Current Federal Tax Expense (Benefit)
U.S. state
Current State and Local Tax Expense (Benefit)
Non-U.S.
Current Foreign Tax Expense (Benefit)
Total
Current Income Tax Expense (Benefit)
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. federal
Deferred Federal Income Tax Expense (Benefit)
U.S. state
Deferred State and Local Income Tax Expense (Benefit)
Non-U.S.
Deferred Foreign Income Tax Expense (Benefit)
Total
Deferred Income Tax Expense (Benefit)
Deferred investment tax credits
Increase (Decrease) in Investment Tax Credit
Increase (Decrease) in Investment Tax Credit
Total income tax expense (benefit)
Schedule Of Preferred Stock
Schedule Of Preferred Stock [Table Text Block]
Schedule Of Preferred Stock [Table Text Block]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Median [Member]
Median [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
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]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Balance at beginning of period
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs
Realized and unrealized gains (losses)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings
Allocated transmission instruments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Issues
Settlements
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements
Balance at end of period
Change in unrealized gains (losses) relating to instruments still held at the end of the period
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss)
Congestion revenue rights, 2020 (price per MWh)
Congestion Revenue Rights, Next Twelve Months
Congestion Revenue Rights, Next Twelve Months
Congestion revenue rights, 2019 (price per MWh)
Congestion Revenue Rights, Current Year
Congestion Revenue Rights, Current Year
Congestion revenue rights, 2018 (price per MWh)
Congestion Revenue Rights
Congestion Revenue Rights
Market electricity forward price inputs (price per MWh)
Market Electricity Forward Price Inputs
Market electricity forward price inputs.
Long-term Purchase Commitment [Table]
Long-term Purchase Commitment [Table]
Natural Gas Storage and Transportation Contracts [Member]
Natural Gas Storage and Transportation Contracts [Member]
Natural Gas Storage and Transportation Contracts [Member]
Natural Gas Supply Contracts [Member]
Natural Gas Supply Contracts [Member]
Natural Gas Contracts [Member]
Natural Gas Contracts [Member]
Natural Gas Transportation Contracts [Member]
Natural Gas Transportation Contracts [Member]
Liquefied Natural Gas Contracts [Member]
Liquefied Natural Gas Contracts [Member]
Long-term Contracts [Member]
Long-term Contracts [Member]
Renewable Energy Contracts Expiring Through 2041 [Member]
Renewable Energy Contracts Expiring Through 2041 [Member]
Other Owned Generation [Member]
Other Owned Generation [Member]
Spot Market Purchases [Member]
Spot Market Purchases [Member]
Purchased-Power Contracts [Member]
Purchased-Power Contracts [Member]
Purchased-Power Contracts [Member]
Infrastructure Construction And Improvements [Member]
Infrastructure Construction And Improvements [Member]
Infrastructure Improvements For Natural Gas And Electric Transmission And Distribution [Member]
Infrastructure Improvements For Natural Gas And Electric Transmission And Distribution [Member]
Infrastructure Improvements For Natural Gas And Electric Transmission And Distribution
Nuclear Plant Maintenance [Member]
Nuclear Plant Maintenance [Member]
Pipelines [Member]
Pipelines [Member]
Natural Gas Pipelines and Ongoing Maintenance Services [Member]
Natural Gas Pipelines and Ongoing Maintenance Services [Member]
Natural Gas Pipelines and Ongoing Maintenance Services [Member]
Liquid Fuels Terminals [Member]
Liquid Fuels Terminals [Member]
Liquid Fuels Terminals [Member]
Renewables Projects [Member]
Renewables Projects [Member]
Renewables Projects [Member]
Sempra LNG & Midstream Construction [Member]
Sempra LNG & Midstream Construction [Member]
Sempra LNG & Midstream Construction [Member]
Long-term Purchase Commitment [Line Items]
Long-term Purchase Commitment [Line Items]
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract]
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract]
2020
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months
2021
Unrecorded Unconditional Purchase Obligation, Due within Two Years
2022
Unrecorded Unconditional Purchase Obligation, Due within Three Years
2023
Unrecorded Unconditional Purchase Obligation, Due within Four Years
2024
Unrecorded Unconditional Purchase Obligation, Due within Five Years
Thereafter
Unrecorded Unconditional Purchase Obligation, Due after Five Years
Total minimum payments
Unrecorded Unconditional Purchase Obligation
Purchase commitment component percentage
Purchase Commitment Component Percentage
Purchase commitment component percentage.
Construction projects, payable
Long-term Purchase Commitment, Amount
Payments
Unrecorded Unconditional Purchase Obligation, Purchases
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments [Member]
Operating Segments [Member]
Consolidating Adjustments [Member]
Consolidation, Eliminations [Member]
Utilities service line [Member]
Utilities Service Line [Member]
Utilities Service Line [Member]
Energy-Related Businesses [Member]
Energy-Related Businesses [Member]
Energy-Related Businesses [Member]
Gas market [Member]
Electric market [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers
Revenue from Contract with Customer, Excluding Assessed Tax
Utilities regulatory revenues
Utilities Regulatory Revenue
Utilities Regulatory Revenue
Other revenues
Other Income
Total revenues
Regulated and Unregulated Operating Revenue
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Share-Based Compensation, Restricted Stock Awards And Units [Member]
Share-Based Compensation, Restricted Stock Awards And Units [Member]
Share-Based Compensation, Performance Based Restricted Stock Units [Member]
Share-Based Compensation, Performance Based Restricted Stock Units [Member]
Share-Based Compensation, Service Based Restricted Stock Units [Member]
Share-Based Compensation, Service Based Restricted Stock Units [Member]
Share-Based Compensation, Restricted Stock Units [Member]
Share-Based Compensation, Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Stock price volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Risk-free rate of return (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested, beginning of period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Nonvested, end of period (in shares)
Weighted average grant date fair value, beginning of period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, forfeited (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, end of period (in dollars per share)
Expected to vest (in shares)
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested And Expected To Vest, Outstanding, Number
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested and expected to vest, outstanding, number.
Weighted average grant date fair value, expected to vest (in dollars per share)
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested And Expected To Vest, Weighted Average Grant Date Fair Value
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested and expected to vest, weighted average grant date fair value.
Maximum Performance Based RSU Target Performance Conditions Exceeded For Awards Granted during or after 2014
Maximum Performance Based RSU Target Performance Conditions Exceeded For Awards Granted during or after 2014
Maximum Performance Based RSU Target Performance Conditions Exceeded For Awards Granted during or after 2014
Equity instruments other than options, vested in the period, fair value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Nonvested awards, compensation cost not yet recognized
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Weighted average period over which unrecognized compensation cost will be recognized
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Ramones Norte Pipeline [Member]
Ramones Norte Pipeline [Member]
Ramones Norte Pipeline [Member]
Ownership percentage before acquisition
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage
Cash paid, net of cash and cash equivalents acquired
Cash acquired from acquisition
Cash Acquired from Acquisition
Debt assumed
Noncash or Part Noncash Acquisition, Debt Assumed
Other intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Weighted average life of finite-lived intangible acquired
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
REGULATORY MATTERS
Decommissioning liability
Decommissioning Liability
Decommissioning Liability
Cost study estimate decommissioning escalated
Cost Study Estimate Decommissioning Escalated
Total Estimated Nuclear Decommissioning Costs, Latest Cost Study Escalated.
2020
Decommissioning Costs, Undiscounted Future Payments, Next Twelve Months
Decommissioning Costs, Undiscounted Future Payments, Next Twelve Months
2021
Decommissioning Costs, Undiscounted Future Payments, Year Two
Decommissioning Costs, Undiscounted Future Payments, Year Two
2022
Decommissioning Costs, Undiscounted Future Payments, Year Three
Decommissioning Costs, Undiscounted Future Payments, Year Three
2023
Decommissioning Costs, Undiscounted Future Payments, Year Four
Decommissioning Costs, Undiscounted Future Payments, Year Four
2024
Decommissioning Costs, Undiscounted Future Payments, Year Five
Decommissioning Costs, Undiscounted Future Payments, Year Five
Thereafter
Decommissioning Costs, Undiscounted Future Payments, After Year Five
Decommissioning Costs, Undiscounted Future Payments, After Year Five
Forecast [Member]
Forecast [Member]
Capital Structure Category [Axis]
Capital Structure Category [Axis]
Capital Structure [Domain]
Capital Structure [Domain]
Capital Structure, Long Term Debt [Member]
Capital Structure, Long Term Debt [Member]
Capital Structure, Preferred Stock [Member]
Capital Structure, Preferred Stock [Member]
Capital Structure, Common Equity [Member]
Capital Structure, Common Equity [Member]
Regulatory Agency [Axis]
Regulatory Agency [Axis]
Regulatory Agency [Domain]
Regulatory Agency [Domain]
California Public Utilities Commission [Member]
California Public Utilities Commission [Member]
California Public Utilities Commission [Member]
Federal Energy Regulatory Commission [Member]
Federal Energy Regulatory Commission [Member]
Federal Energy Regulatory Commission [Member]
Authorized weighting
Cost Of Capital Authorized Weighting
Cost Of Capital Authorized Weighting
Return on rate base
Cost Of Capital Authorized Rate Of Recovery
Cost Of Capital Authorized Rate Of Recovery
Weighted return on rate base
Cost Of Capital Authorized Return On Rate Base
Cost Of Capital Authorized Return On Rate Base
Cost Of Capital Authorized Rate Of Recovery, Revised
Cost Of Capital Authorized Rate Of Recovery, Revised
Cost Of Capital Authorized Rate Of Recovery, Revised
Cost Of Capital Authorized Return On Rate Base, Revised
Cost Of Capital Authorized Return On Rate Base, Revised
Cost Of Capital Authorized Return On Rate Base, Revised
Weighted return on rate base
Cost Of Capital Weighted Authorized Return On Rate Base
Cost Of Capital Weighted Authorized Return On Rate Base
CCM Benchmark Rate
CCM Benchmark Rate
CCM Benchmark Rate
CCM Benchmark Rate, Increase (Decrease) Percent For Trigger
CCM Benchmark Rate, Increase (Decrease) Percent For Trigger
CCM Benchmark Rate, Increase (Decrease) Percent For Trigger
Weighting
Cost Of Capital Estimated Weighting
Cost Of Capital Estimated Weighting
Return on rate base
Public Utilities, Approved Return on Equity, Percentage
Weighted return on rate base
Cost Of Capital Weighted Estimated Return On Rate Base
Cost Of Capital Weighted Estimated Return On Rate Base
Minimum common equity ratio
FERC Requirement To Maintain Common Equity Ratio At Or Above
FERC Requirement To Maintain Common Equity Ratio At Or Above
FERC Requirement To Maintain Common Equity Ratio At Or Above, Base
FERC Requirement To Maintain Common Equity Ratio At Or Above, Base
FERC Requirement To Maintain Common Equity Ratio At Or Above, Base
FERC, Revenue Requirement
FERC, Revenue Requirement
FERC, Revenue Requirement
FERC requirement, additional basis spread
FERC Requirement To Maintain Common Equity Ratio At Or Above, Additional Basis Spread
FERC Requirement To Maintain Common Equity Ratio At Or Above, Additional Basis Spread
Maximum required nuclear liability insurance available
Nuclear Liability Insurance Coverage, Maximum
Maximum secondary financial protection available
Secondary Financial Protection, Maximum
Maximum nuclear liability loss coverage per incident
Secondary Financial Protection, Company Contribution, Annual Maximum
Federal Nuclear Property Damage Insurance
Federal Nuclear Property Damage Insurance
Federal Nuclear Property Damage Insurance
Spent Nuclear Fuel Storage Insurance
Spent Nuclear Fuel Storage Insurance
Spent Nuclear Fuel Storage Insurance
Federal nuclear property damage insurance, minimum required
Federal nuclear property damage insurance, minimum required
Federal nuclear property damage insurance, minimum required
Maximum premium assessment under nuclear property damage insurance
Nuclear Property Damage Insurance, Premium Assessment
Maximum nuclear property insurance terrorism coverage
Nuclear Property Insurance Terrorism Coverage, Maximum
Income Tax Contingency [Table]
Income Tax Contingency [Table]
Income Tax Contingency [Line Items]
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
Reconciliation of Unrecognized Tax Benefits
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance
Unrecognized Tax Benefits
Increase in prior period tax positions
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Decrease in prior period tax positions
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Increase in current period tax positions
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Increase Resulting from Settlements with Taxing Authorities
Unrecognized Tax Benefits, Increase Resulting from Settlements with Taxing Authorities
Settlements with taxing authorities
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Expiration of statutes of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Ending balance
Of the total, amounts related to tax positions that, if recognized, in future years, would decrease the effective tax rate
Unrecognized Tax Benefits That Would Decrease Effective Tax Rate
Unrecognized tax benefits that would decrease effective tax rate.
Of the total, amounts related to tax positions that, if recognized, in future years, would increase the effective tax rate
Unrecognized Tax Benefits That Would Increase Effective Tax Rate
Unrecognized tax benefits that would increase effective tax rate.
Earnings attributable to noncontrolling interests
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest
Mandatory convertible preferred stock dividends
Preferred dividends of subsidiary
Preferred Stock Dividends, Income Statement Impact
Earnings from continuing operations attributable to common shares
Income (Loss) From Continuing Operations, Net Of Tax, Including Portion Attributable To Noncontrolling Interest, Before Preferred Stock Dividend
Income (Loss) From Continuing Operations, Net Of Tax, Including Portion Attributable To Noncontrolling Interest, Before Preferred Stock Dividend
Income (loss) from discontinued operations, net of income tax
Earnings attributable to noncontrolling interests
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest
Earnings (losses) from discontinued operations attributable to common shares
Earnings attributable to common shares
Net Income (Loss) Available to Common Stockholders, Basic
Weighted-average common shares outstanding for basic EPS (in shares)
Dilutive effect of stock options and RSUs (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Dilutive effect of common shares sold forward (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements
Earnings from continuing operations attributable to common shares
Income (Loss) from Continuing Operations, Per Basic Share
Earnings (losses) from discontinued operations attributable to common shares
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share
Earnings from continuing operations (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Earnings (losses) from discontinued operations (in dollars per share)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share
Fully vested RSUs included in the computation of EPS
Vested RSUs included in basic WASO
Vested restricted stock units included in basic weighted average shares outstanding.
Condensed Balance Sheet Statement [Table]
Condensed Balance Sheet Statement [Table]
Condensed Balance Sheet Statements, Captions [Line Items]
Condensed Balance Sheet Statements, Captions [Line Items]
Due from affiliates
Investments in subsidiaries
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Due from affiliates
Deferred income taxes
Liabilities and shareholders’ equity:
Current portion of long-term debt
Due to affiliates
Income taxes payable, net
Accrued Income Taxes, Current
Long-term debt
Due to affiliates
Other long-term liabilities
Other Liabilities, Noncurrent
Commitments and contingencies (Note 4)
Cover page.
Document And Entity Information [Table]
Document And Entity Information [Table]
Document And Entity Information [Table]
Convertible Preferred Stock Series A [Member]
Convertible Preferred Stock Series A [Member]
Convertible Preferred Stock Series A [Member]
Convertible Preferred Stock Series B [Member]
Convertible Preferred Stock Series B [Member]
Convertible Preferred Stock Series B [Member]
Sempra Energy 5.75% Junior Subordinated Notes Due 2079 [Member]
Sempra Energy 5.75% Junior Subordinated Notes Due 2079 [Member]
Sempra Energy 5.75% Junior Subordinated Notes Due 2079 [Member]
Preferred Stock Series A [Member]
PreferredStockSeriesA [Member]
PreferredStockSeriesA [Member]
Document And Entity Information [Line Items]
Document And Entity Information [Line Items]
[Line Items] for Document And Entity Information [Table]
Document Type
Document Type
Document Annual Report
Document Annual Report
Document Period End Date
Document Period End Date
Document Transition Report
Document Transition Report
Entity File Number
Entity File Number
Entity Registrant Name
Entity Registrant Name
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Entity Tax Identification Number
Entity Tax Identification Number
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, City or Town
Entity Address, City or Town
Entity Address, State or Province
Entity Address, State or Province
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Title of 12(b) Security
Title of 12(b) Security
Trading Symbol
Trading Symbol
Security Exchange Name
Security Exchange Name
Title of 12(g) Security
Title of 12(g) Security
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Entity Filer Category
Entity Filer Category
Entity Small Business
Entity Small Business
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Shell Company
Entity Shell Company
Entity Public Float
Entity Public Float
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Entity Central Index Key
Entity Central Index Key
Amendment Flag
Amendment Flag
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Current Fiscal Year End Date
Current Fiscal Year End Date
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Cash Flow Hedging [Member]
Cash Flow Hedging [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Interest Expense [Member]
Interest Expense [Member]
Other Income, Net [Member]
Other Income [Member]
Gain on Sale of Assets [Member]
Sale of Subsidiary Gain (Loss) [Member]
Equity Earnings [Member]
Equity Earnings Before Income Tax [Member]
Revenues: Energy-Related Businesses [Member]
Sales [Member]
Cost of Electric Fuel and Purchased Power [Member]
Cost of Electric Fuel and Purchased Power [Member]
Cost of Natural Gas [Member]
Cost of Natural Gas [Member]
Commodity contracts subject to rate recovery [Member]
Commodity Contracts Subject To Rate Recovery [Member]
Pretax (loss) gain recognized in OCI
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Pretax gain (loss) on derivative recognized in OCI
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax
Pretax (loss) gain reclassified from AOCI into earnings
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax
Pretax gain (loss) reclassified from AOCI into earnings
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
Gain (loss) on derivative recognized in earnings
Derivative, Gain (Loss) on Derivative, Net
Settlement of Forward Sale Contracts [Member]
Settlement of Forward Sale Contracts [Member]
Settlement of Forward Sale Contracts [Member]
TTHC [Member]
TTHC [Member]
TTHC [Member]
Oncor Electric Delivery Company LLC Additional Acquisition [Member]
Oncor Electric Delivery Company LLC Additional Acquisition [Member]
Oncor Electric Delivery Company LLC Additional Acquisition [Member]
InfraREIT Acquisition [Member]
InfraREIT Acquisition [Member]
InfraREIT Acquisition [Member]
InfraREIT Partners [Member]
InfraREIT Partners [Member]
InfraREIT Partners [Member]
TTI [Member]
TTI [Member]
TTI [Member]
Sharyland Utilities [Member]
Sharyland Utilities [Member]
Sharyland Utilities [Member]
Additional consideration transferred
Business Combination, Consideration Transferred, Other
Additional interest acquired (as a percent)
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage
Notes receivable acquired
Business Combination, Acquired Receivables, Gross Contractual Amount
Proceeds from issuance of debt and equity
Proceeds from Issuance of Debt and Equity
Proceeds from Issuance of Debt and Equity
Repayments of debt
Repayments of Debt
Payments of stock issuance costs
Payments of Stock Issuance Costs
Proceeds from issuance of debt
Proceeds from Issuance of Debt
Weighted average term, of line of credit
Line of Credit facility, Weighted Average Term
Line of Credit facility, Weighted Average Term
Weighted average rate
Debt, Weighted Average Interest Rate
Transaction costs incurred
Business Acquisition, Transaction Costs
Share price (USD per share)
Business Acquisition, Share Price
Management agreement termination fee
Management Agreement Termination Fee
Management Agreement Termination Fee
Repayments of assumed debt
Repayments of Assumed Debt
Repayments of secured debt
Repayments of Secured Debt
Capital contributions to investees
Post closing adjustments
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred
Inventory, Current [Table]
Inventory, Current [Table]
Inventory [Line Items]
Inventory [Line Items]
Natural gas
Energy Related Inventory, Natural Gas in Storage
LNG
Energy Related Inventory, Liquefied Natural Gas
Energy related inventory, Liquefied Natural Gas.
Materials and supplies
Energy Related Inventory, Materials And Supplies
Energy related inventory, materials and supplies.
Inventories
Schedule Of Defined Benefit Plans, Change In Benefit Obligation And Fair Value Of Plan Assets
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]
Schedule Of Defined Benefit Plans, Amounts Recognized In Balance Sheet
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Schedule Of Defined Benefit Plans, Amounts In Accumulated Other Comprehensive Income
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Schedule Of Defined Benefit Plans, Pension Plans With Benefit Obligations In Excess Of Plan Assets
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block]
Schedule of Net Periodic Costs and Amounts Recognized in OCI
Schedule of Net Benefit Costs [Table Text Block]
Schedule of Assumptions Used
Defined Benefit Plan, Assumptions [Table Text Block]
Schedule of Health Care Cost Trend Rates
Schedule of Health Care Cost Trend Rates [Table Text Block]
Schedule Of Defined Benefit Plans, Fair Value Of Plan Assets By Level In Fair Value Hierarchy
Schedule of Allocation of Plan Assets [Table Text Block]
Schedule Of Defined Benefit Plans, Estimated Future Employer Contributions In Next Fiscal Year
Schedule Of Defined Benefit Plans Estimated Future Employer Contributions In Next Fiscal Year [Table Text Block]
Schedule Of Defined Benefit Plans Estimated Future Employer Contributions In Next Fiscal Year [Table Text Block]
Schedule of Expected Benefit Payments
Schedule of Expected Benefit Payments [Table Text Block]
Schedule Of Defined Benefit Plans Contributions
Schedule Of Defined Benefit Plans Contributions [Table Text Block]
Schedule Of Defined Benefit Plans Contributions [Table Text Block]
SEMPRA ENERGY - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE
Earnings Per Share [Text Block]
Selected Quarterly Financial Information [Table]
Selected Quarterly Financial Information [Table]
Selected Quarterly Financial Information [Line Items]
Selected Quarterly Financial Information [Line Items]
Revenues
Expenses and other income
Quarterly Financial Data, Expenses And Other Income
Quarterly financial data, expenses and other income.
Income from continuing operations, net of income tax
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
(Loss) income from discontinued operations, net of income tax
Operating revenues
Regulated Operating Revenue
Operating expenses
Utilities Operating Expense
Operating income
Operating Income (Loss)
Net income
Earnings attributable to noncontrolling interest
Earnings attributable to common shares
Earnings
Earnings from continuing operations - Basic EPS (in dollars per share)
Basic earnings per common share attributable to Sempra Energy (in dollars per share)
Earnings Per Share, Attributable to Parent, Basic
Earnings Per Share, Attributable to Parent, Basic
Earnings from continuing operations - Diluted EPS (in dollars per share)
Diluted earnings per common share attributable to Sempra Energy (in dollars per share)
Earnings Per Share, Attributable to Parent, Diluted
Earnings Per Share, Attributable to Parent, Diluted
Dividends on preferred stock
Equity Method Investment, Summarized Financial Information [Abstract]
Equity Method Investment, Summarized Financial Information [Abstract]
Gross revenue
Equity Method Investment, Summarized Financial Information, Revenue
Operating expense
Equity Method Investment Summarized Financial Information Operating Expense
Equity method investment summarized financial information operating expense
Interest expense
Equity Method Investment Summarized Financial Information Interest Expense
Equity method investment summarized financial information interest expense.
Income tax expense
Equity Method Investment, Summarized Financial Information, Income Tax Expense (Benefit)
Equity Method Investment, Summarized Financial Information, Income Tax Expense (Benefit)
Net income/earnings
Equity Method Investment, Summarized Financial Information, Net Income (Loss)
Noncontrolling interest held by TTI
Equity Method Investment, Summarized Financial Information, Net Income (Loss), Non-controlling Interest
Equity Method Investment, Summarized Financial Information, Net Income (Loss), Non-controlling Interest
Earnings attributable to Sempra Energy
Equity Method Investment, Summarized Financial Information, Net Income (Loss), Attributable To Controlling Interest
Equity Method Investment, Summarized Financial Information, Net Income (Loss), Attributable To Controlling Interest
Current assets
Equity Method Investment, Summarized Financial Information, Current Assets
Noncurrent assets
Equity Method Investment, Summarized Financial Information, Noncurrent Assets
Current liabilities
Equity Method Investment, Summarized Financial Information, Current Liabilities
Noncurrent liabilities
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities
Noncontrolling Interest held by TTI
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest
Significant Accounting Policies And Other Financial Data
Additional Financial Information Disclosure [Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
LA Storage [Member]
LA Storage [Member]
LA Storage [Member]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Measurement Input, Commodity Market Price [Member]
Measurement Input, Commodity Market Price [Member]
Measurement Input, Storage Rate [Member]
Measurement Input, Storage Rate [Member]
Measurement Input, Storage Rate [Member]
Measurement Input, Discount Rate [Member]
Measurement Input, Discount Rate [Member]
Fair Value, Nonrecurring [Member]
Fair Value, Nonrecurring [Member]
Disposal Group Disposed of by Sale [Member]
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Wind Investments [Member]
Wind Investments [Member]
Wind Investments [Member]
Non-utility Natural gas Storage Assets [Member]
Non-utility Natural gas Storage Assets [Member]
Non-utility Natural gas Storage Assets [Member]
Mississippi Hub And Bay Gas [Member]
Mississippi Hub And Bay Gas [Member]
Mississippi Hub And Bay Gas [Member]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Domain]
Valuation Approach and Technique [Domain]
Valuation, Market Approach [Member]
Valuation, Market Approach [Member]
Valuation Technique, Discounted Cash Flow [Member]
Valuation Technique, Discounted Cash Flow [Member]
TdM [Member]
TdM [Member]
TdM [Member]
Certain U.S. Wind Equity Method Investments [Member]
Certain U.S. Wind Equity Method Investments [Member]
Certain US Wind Equity Method Investments [Member]
Fair Value, Inputs, Level 3 [Member]
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]
Other than temporary impairment
Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings
Assets, fair value disclosure
Assets, Fair Value Disclosure
Proceeds from sale
Disposal Group, Including Discontinued Operation, Consideration
Assets held for sale
Disposal Group, Including Discontinued Operation, Assets
Fair value of investment
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure
Assets, measurement input
Assets, Measurement Input
Assets, Measurement Input
% of fair value measurement
Fair Value Inputs, Percentage of Fair Value Measurement
Fair Value Inputs, Percentage of Fair Value Measurement
Range of inputs
Fair Value Inputs, Range of Inputs
Fair Value Inputs, Range of Inputs
Schedule of Operating Leased Assets [Table]
Schedule of Operating Leased Assets [Table]
Capital Leases, By Nature Of Lease [Axis]
Capital Leases, By Nature Of Lease [Axis]
Capital Leases Nature [Domain]
Capital Leases Nature [Domain]
HQ Build To Suit Arrangement [Member]
HQ Build To Suit Arrangement [Member]
Operating Leased Assets [Line Items]
Operating Leased Assets [Line Items]
2019
Capital Leases, Future Minimum Payments Due, Next Twelve Months
2020
Capital Leases, Future Minimum Payments Due in Two Years
2021
Capital Leases, Future Minimum Payments Due in Three Years
2022
Capital Leases, Future Minimum Payments Due in Four Years
2023
Capital Leases, Future Minimum Payments Due in Five Years
Thereafter
Capital Leases, Future Minimum Payments Due Thereafter
Total undiscounted lease payments
Capital Leases, Future Minimum Payments Due
2019
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2020
Operating Leases, Future Minimum Payments, Due in Two Years
2021
Operating Leases, Future Minimum Payments, Due in Three Years
2022
Operating Leases, Future Minimum Payments, Due in Four Years
2023
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total undiscounted lease payments
Operating Leases, Future Minimum Payments Due
Less: estimated executory costs
Capital Leases, Future Minimum Payments, Executory Costs
Less: imputed interest
Capital Leases, Future Minimum Payments, Interest Included in Payments
Total future minimum lease payments
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table]
Nature of Uncertainty [Axis]
Nature of Uncertainty [Axis]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain]
Expiration of statutes of limitations on tax assessments [Member]
Expiration Of Statute Of Limitations [Member]
Potential resolution of audit issues with various U.S. federal, state, and local non-U.S. taxing authorities [Member]
Potential Resolution Of Audit Issues [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Possible change in unrecognized tax benefits in next 12 months
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
Schedule of Condensed Statements of Operations
Condensed Income Statement [Table Text Block]
Schedule Of Condensed Statements Of Comprehensive Income
Condensed Statement of Comprehensive Income [Table Text Block]
Schedule Of Condensed Balance Sheets
Condensed Balance Sheet [Table Text Block]
Schedule of Condensed Statements of Cash Flows
Condensed Cash Flow Statement [Table Text Block]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Schedule Of Long-term Debt
Schedule of Debt [Table Text Block]
Quarterly Financial Data (Unaudited)
Quarterly Financial Information [Text Block]
Environmental Issues [Table]
Environmental Issues [Table]
Environmental Issues [Line Items]
Environmental Issues [Line Items]
Capital expendistures for environmental issues
Environmental Costs Recognized, Capitalized in Period
Accrued liability for environmental matters, discount
Accrual for Environmental Loss Contingencies, Discount
Accrued liability for environmental matters, discount rate (as a percent)
Accrual for Environmental Loss Contingencies, Discount Rate
Schedule of Nuclear Decommissioning Trusts
Debt Securities, Available-for-sale [Table Text Block]
Schedule of Securities Sold
Securities Owned Not Readily Marketable [Table Text Block]
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Domain]
Other Comprehensive Income Location [Domain]
Pretax amount [Member]
Before-Tax Amount [Member]
Income tax (expense) benefit [Member]
Income Tax (Expense) Benefit [Member]
Net-of-tax amount [Member]
Net-of-Tax Amount [Member]
Noncontrolling interests (after-tax) [Member]
Total [Member]
Total Equity [Member]
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Financial instruments
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Financial instruments
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Pension and other postretirement benefits
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Total other comprehensive (loss) income
Comprehensive income
Total Comprehensive Income Before Preferred Stock Dividend Requirements
Total comprehensive income before preferred stock dividend requirements.
Total comprehensive income, after preferred dividends of subsidiaries
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Significant Restrictions Of Subsidiaries [Table]
Significant Restrictions Of Subsidiaries [Table]
Unconsolidated Entities [Member]
Unconsolidated Entities [Member]
Unconsolidated Entities [Member]
California Utilities [Member]
Utility Subsidiaries [Member]
Consolidated Entities [Member]
Consolidated Entities [Member]
Mexican Subsidiaries [Member]
Mexican Subsidiaries [Member]
IEnova Pipelines [Member]
Gasoductos De Chihuahua [Member]
Significant Restrictions of Subsidiaries [Line Items]
Significant Restrictions of Subsidiaries [Line Items]
Restricted net assets of consolidated or unconsolidated subsidiaries
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries
Undistributed earnings of equity investments
Undistributed Earnings of Equity Method Investments
Undistributed earnings of equity method investments.
Amount available for dividend distribution and loans without prior approval from regulatory agency
Amount Available For Dividend Distribution And Loans Without Prior Approval From Regulatory Agency
Amount available for dividend distribution and loans without prior approval from regulatory agency.
Authorized percentage of equity
Authorized Capital Structure, Common Equity
Authorized capital structure common equity.
Maximum ratio of indebtedness to total capitalization
Ratio of Indebtedness to Net Capital
Plan percentage of capital structure allocated to debt
Public Utilities, Approved Debt Capital Structure, Percentage
Plan percentage of capital structure allocated to equity
Public Utilities, Approved Equity Capital Structure, Percentage
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Certain Subsidiaries Of Sempra Renewables [Member]
Certain Subsidiaries Of Sempra Renewables [Member]
Certain Subsidiaries Of Sempra Renewables [Member]
Other Non-Utility assets [Member]
Other Non-Utility assets [Member]
Other Non-Utility assets [Member]
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]
Asset impairment charges
Asset Impairment Charges, Net of Taxes and Noncontrolling Interests
Gain on sale of equity interests
Deconsolidation, Gain (Loss), Amount
Gain (loss) on deconsolidation
Deconsolidation, Gain (Loss), Amount Net Of Tax
Deconsolidation, Gain (Loss), Amount Net Of Tax
Proceeds from sale, net of transaction costs
Disposal Group, Including Discontinued Operation, Consideration, Net of Transaction costs
Disposal Group, Including Discontinued Operation, Consideration, Net of Transaction costs
Cash
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents
Restricted cash
Disposal Group, Including Discontinued Operation, Restricted Cash
Disposal Group, Including Discontinued Operation, Restricted Cash
Other current assets
Disposal Group, Including Discontinued Operation, Other Assets, Current
Property, plant and equipment, net
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent
Other investments
Disposal Group, Including Discontinued Operation, Other Investments
Disposal Group, Including Discontinued Operation, Other Investments
Other noncurrent assets
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent
Current liabilities
Long-term debt
DisposalGroupIncludingDiscontinuedOperationLongTermDebtIncludingCurrentPortion
DisposalGroupIncludingDiscontinuedOperationLongTermDebtIncludingCurrentPortion
Asset retirement obligations
Disposal Group Including Discontinued Operation Asset Retirement Obligations Noncurrent
Assets Held for Sale, Asset Retirement Obligations
Other noncurrent liabilities
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent
Noncontrolling interests
Disposal Group, Including Discontinued Operation, Non-Controlling Interest
Disposal Group, Including Discontinued Operation, Non-Controlling Interest
Accumulated other comprehensive income
Disposal Group, Including Discontinued Operation, Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Disposal Group, Including Discontinued Operation, Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Wildfire Fund [Member]
Wildfire Fund [Member]
Wildfire Fund [Member]
PG&E [Member]
PG&E [Member]
PG&E [Member]
Edison [Member]
Edison [Member]
Edison [Member]
SDG&E and Edison [Member]
SDG&E and Edison [Member]
SDG&E and Edison [Member]
Fire risk mitigation capital improvements
Capital Improvement, Fire Risk Mitigation
Capital Improvement, Fire Risk Mitigation
Wildfire fund, threshold amount to seek payment
Wildfire Fund, Threshold Amount To Seek Payment
Wildfire Fund, Threshold Amount To Seek Payment
Wildfire fund, threshold percentage of equity portion of electric transmission
Wildfire Fund, Maximum Claim Reimbursement, Threshold Percentage Of Equity Portion Of Electric Transmission And Distribution Rate Base
Wildfire Fund, Maximum Claim Reimbursement, Threshold Percentage Of Equity Portion Of Electric Transmission And Distribution Rate Base
Initial liability cap
Wildfire Fund, Maximum Claim Reimbursement
Wildfire Fund, Maximum Claim Reimbursement
Liquidity fund, maximum borrowing capacity
Loss Contingency, Loss Contingency, Liquidity Fund, Maximum Borrowing Capacity
Loss Contingency, Loss Contingency, Liquidity Fund, Maximum Borrowing Capacity
Initial shareholder contributions
Loss Contingency, Initial Shareholder Contributions
Loss Contingency, Initial Shareholder Contributions
Additional annual contributions, aggregate value
Loss Contingency, Additional Annual Contributions, Aggregate Value
Loss Contingency, Additional Annual Contributions, Aggregate Value
Period of annual contributions
Loss Contingency, Period of Annual Contributions
Loss Contingency, Period of Annual Contributions
Total shareholder contribution
Loss Contingency, Total Shareholder Contribution
Loss Contingency, Total Shareholder Contribution
Wildfire fund asset
Prepaid Insurance Fund Asset
Prepaid Insurance Fund Asset
Amortization of wildfire fund asset
Amortization of Prepaid Insurance Fund Asset
Amortization of Prepaid Insurance Fund Asset
Current portion of Wildfire fund
Prepaid Insurance Fund Asset, Current
Prepaid Insurance Fund Asset, Current
Noncurrent portion of the Wildfire Fund asset
Wildfire fund, liability
Prepaid Insurance Fund, Liability
Prepaid Insurance Fund, Liability
Additional annual contributions
Loss Contingency, Additional Annual Contributions
Loss Contingency, Additional Annual Contributions
Wildfire fund obligations in current liabilities
Prepaid Insurance Fund Liability, Current Liabilities
Prepaid Insurance Fund Liability, Current Liabilities
Wildlife fund obligations in deferred credits and other
Prepaid Insurance Fund Liability, Deferred Credits and Other
Prepaid Insurance Fund Liability, Deferred Credits and Other
Schedule of Cash, Cash Equivalents and Restricted Cash
Schedule of Cash and Cash Equivalents [Table Text Block]
Schedule Of Receivables Collection Allowances
Valuation and Qualifying Accounts Disclosure [Table Text Block]
Valuation and Qualifying Accounts Disclosure [Table Text Block]
Schedule of Inventory
Schedule of Inventory, Current [Table Text Block]
Schedule of Property, Plant and Equipment
Property, Plant and Equipment [Table Text Block]
Schedule Of Capitalized Financing Costs
Schedule of Capitalization [Table Text Block]
Schedule Of Other Intangible Assets
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
Schedule Of Variable Interest Entities
Schedule of Variable Interest Entities [Table Text Block]
Schedule Of Asset Retirement Obligations
Schedule of Asset Retirement Obligations [Table Text Block]
Schedule Of Changes In Accumulated Other Comprehensive Income By Component
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule Of Reclassifications Out Of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Schedule Of Noncontrolling Interests
Schedule of Other Ownership Interests [Table Text Block]
Schedule of Related Party Transactions
Schedule of Related Party Transactions [Table Text Block]
Schedule Of Other Income (Expense)
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Common stock dividends declared (USD per share)
Common Stock, Dividends, Per Share, Declared
Preferred stock, dividends declared per share (USD per share)
Preferred Stock, Dividends Per Share, Declared
Domestic Equity [Member]
Domestic Equity [Member]
International Equity [Member]
International Equity [Member]
Ultra-long duration government securities [Member]
LongGovernment [Member]
Defined Benefit Plan, Real Estate [Member]
Defined Benefit Plan, Real Estate [Member]
Return Seeking Credit [Member]
High Yield Credit [Member]
Real Assets [Member]
Real Assets [Member]
Return Seeking Assets [Member]
Return Seeking Assets [Member]
Return Seeking Assets [Member]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Other Income, Nonoperating [Abstract]
Other Income, Nonoperating [Abstract]
Other Income [Table]
Other Income [Table]
Other Income [Line Items]
Other Income [Line Items]
Other Income [Line Items]
Allowance for equity funds used during construction
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
Investment (losses) gains
Gain (Loss) on Investments
Gains on interest rate and foreign exchange instruments, net
Unrealized Gain (Loss) on Derivatives
Foreign currency transaction gains (losses)
Foreign Currency Transaction Gain (Loss), before Tax
Non-service component of net periodic benefit cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit). Excluding Service Cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit). Excluding Service Cost
Penalties related to billing practices OII
Interest on regulatory balancing accounts, net
Regulatory Interest, net
Regulatory interest, net.
Sundry, net
Other Sundry Expenses, Net
Other Sundry Expenses, Net
Total
Schedule Of Quarterly Financial Data Table
Quarterly Financial Information [Table Text Block]
Public Offering [Member]
Public Offering [Member]
Public Offering [Member]
Common Stock Forward Sales [Member]
Common Stock Forward Sales [Member]
Common Stock Forward Sales [Member]
Price of shares issued (in dollars per share)
Shares Issued, Price Per Share
Price of shares issued net of underwriting discount (in dollars per share)
Shares Issued, Price Per Share, Net of Underwriting Discount
Shares Issued, Price Per Share, Net of Underwriting Discount
Issuances of common stock, net
Schedule of Capitalization [Table]
Schedule of Capitalization [Table]
Capitalized Financing Costs Disclosure [Line Items]
Capitalized Financing Costs Disclosure [Line Items]
Total capitalized financing costs
Interest Costs Capitalized
Federal Funds Rate [Member]
Fed Funds Effective Rate Overnight Index Swap Rate [Member]
California Utilities [Member]
California Utilities Combined [Member]
California Utilities Combined [Member]
Related party revenue
Revenue from Related Parties
Related party cost of sales
Costs and Expenses, Related Party
Power purchase agreement term
Power Purchase Agreement, Term
Power Purchase Agreement, Term
Fair Value Measured at Net Asset Value Per Share [Member]
Fair Value Measured at Net Asset Value Per Share [Member]
Interest Rate and Foreign Exchange Instruments [Member]
Interest Rate and Foreign Exchange Instruments [Member]
Commodity contracts not subject to rate recovery [Member]
Commodity Contracts Not Subject To Rate Recovery [Member]
Alternative investment
Alternative Investment
Nuclear decommissioning trusts - equity securities
Financial Instruments, Owned, Corporate Equities, at Fair Value
Nuclear decommissioning trusts - Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value
Nuclear decommissioning trusts - Municipal debt securities
Financial Instruments, Owned, State and Municipal Government Obligations, at Fair Value
Nuclear decommissioning trusts - Other debt securities
Financial Instruments, Owned, Other, at Fair Value
Nuclear decommissioning trusts - Total debt securities
Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Total Debt Securities
Fair value assets measured on a recurring basis nuclear decommissioning trusts, total debt securities.
Total nuclear decommissioning trusts
Decommissioning Fund Investments, Fair Value
Derivative asset
Derivative Asset
Effect of netting and allocation of collateral
Derivative Asset, Collateral, Obligation to Return Cash, Offset
Assets fair value disclosure, total
Derivative liability
Derivative Liability
Effect of netting and allocation of collateral
Derivative Liability, Collateral, Right to Reclaim Cash, Offset
Liabilities fair value disclosure, total
Financial and Nonfinancial Liabilities, Fair Value Disclosure
First Mortgage Bonds, Due August 2021 [Member]
First Mortgage Bonds, Due August 2021 [Member]
First Mortgage Bonds Due February 2022 [Member]
First Mortgage Bonds Due February 2022 [Member]
First Mortgage Bonds, Due September 2023 [Member]
First Mortgage Bonds, Due September 2023 [Member]
First Mortgage Bonds Due May 2026 [Member]
First Mortgage Bonds Due May 2026 [Member]
First Mortgage Bonds Due May 2026 [Member]
First Mortgage Bonds, Due June 2026 [Member]
First Mortgage Bonds, Due June 2026 [Member]
First Mortgage Bonds, Due January And February 2034 [Member]
First Mortgage Bonds, Due January And February 2034 [Member]
First Mortgage Bonds, Due May 2035 [Member]
First Mortgage Bonds, Due May 2035 [Member]
First Mortgage Bonds, Due September 2037 [Member]
First Mortgage Bonds, Due September 2037 [Member]
First Mortgage Bonds, Due May 2039 [Member]
First Mortgage Bonds, Due May 2039 [Member]
First Mortgage Bonds, Due June 2039 [Member]
First Mortgage Bonds, Due June 2039 [Member]
First Mortgage Bonds, Due May 2040 [Member]
First Mortgage Bonds, Due May 2040 [Member]
First Mortgage Bonds, Due August 2040 [Member]
First Mortgage Bonds, Due August 2040 [Member]
First Mortgage Bonds, Due November 2041 [Member]
First Mortgage Bonds, Due November 2041 [Member]
First Mortgage Bonds, Due April 2042 [Member]
First Mortgage Bonds, Due April 2042 [Member]
First Mortgage Bonds, Due June 2047 [Member]
First Mortgage Bonds, Due June 2047 [Member]
First Mortgage Bonds, Due June 2047 [Member]
First Mortgage Bonds, Due May 2048 [Member]
First Mortgage Bonds, Due May 2048 [Member]
First Mortgage Bonds, Due May 2048 [Member]
First Mortgage Bonds, Due June 15 2049 [Member]
First Mortgage Bonds, Due June 15 2049 [Member]
First Mortgage Bonds, Due June 15 2049 [Member]
Otay Mesa Energy Center Loan Payable Currently Through April 2019 [Member]
Otay Mesa Energy Center Loan Payable Currently Through April 2019 [Member]
Otay Mesa Energy Center Loan Payable 2019 through 2024 [Member]
Otay Mesa Energy Center Loan Payable 2019 through 2024 [Member]
Otay Mesa Energy Center Loan Payable 2019 through 2024 [Member]
Finance Lease Obligations, Purchased Power Contracts [Member]
Finance Lease Obligations, Purchased Power Contracts [Member]
Finance Lease Obligations, Purchased Power Contracts [Member]
Finance Lease Obligations, Other [Member]
Finance Lease Obligations, Other [Member]
Finance Lease Obligations, Other [Member]
Other Long-term Debt [Member]
Other Long-term Debt [Member]
First Mortgage Bonds, Due September 2024 [Member]
First Mortgage Bonds, Due September 2024 [Member]
First Mortgage Bonds Due June 2025 [Member]
First Mortgage Bonds Due June 2025 [Member]
First Mortgage Bonds, Due November 2035 [Member]
First Mortgage Bonds, Due November 2035 [Member]
First Mortgage Bonds, Due November 2040 [Member]
First Mortgage Bonds, Due November 2040 [Member]
First Mortgage Bonds, Due September 2042 [Member]
First Mortgage Bonds, Due September 2042 [Member]
First Mortgage Bonds, Due March 2044 [Member]
First Mortgage Bonds, Due March 2044 [Member]
First Mortgage Bonds, Due June 2048 [Member]
First Mortgage Bonds, Due June 2048 [Member]
First Mortgage Bonds, Due June 2048 [Member]
First Mortgage Bonds, Due January 2049 [Member]
First Mortgage Bonds, Due January 2049 [Member]
First Mortgage Bonds, Due January 2049 [Member]
First Mortgage Bonds, Due February 2050 [Member]
First Mortgage Bonds, Due February 2050 [Member]
First Mortgage Bonds, Due February 2050 [Member]
Other Long-term Debt, Due May 2026 [Member]
Other Long-term Debt, Due May 2026 [Member]
Other Long-term Debt, Due May 2026 [Member]
Other Long-term Debt, Due January 2028 [Member]
Other Long-term Debt, Due January 2028 [Member]
Other Long-term Debt, Due February 2019 [Member]
Other Long-term Debt, Due February 2019 [Member]
Other Long-term Debt, Due July 2019 [Member]
Other Long-term Debt, Due July 2019 [Member]
Other Long-term Debt, Due July 2019
Other Long-term Debt, October 2019 [Member]
Other Long-term Debt, Due October 2019 [Member]
Other Long-term Debt, Due October 2019 [Member]
Other Long Term Debt Due February 2020 [Member]
Other Long Term Debt Due February 2020 [Member]
Other Long Term Debt Due February 2020 [Member]
Other Long Term Debt Due March 2020 [Member]
Other Long Term Debt Due March 2020 [Member]
Other Long Term Debt, Due November 2020 [Member]
Other Long Term Debt Due November 2020 [Member]
Other Long-term Debt, Due January 2021 [Member]
Other Long-term Debt, Due January 2021 [Member]
Other Long-term Debt, Due January 2021 [Member] [Member]
Other Long Term Debt, Variable Rate Notes Due March 2021 [Member]
Other Long Term Debt, Variable Rate Notes Due March 2021 [Member]
Other Long Term Debt, Variable Rate Notes Due March 2021 [Member]
Other Long Term Debt, Due October 2022 [Member]
Other Long Term Debt, Due October 2022 [Member]
Other Long-term Debt, Due February 2023 [Member]
Other Long-term Debt, Due February 2023 [Member]
Other Long-term Debt, Due December 2023 [Member]
Other Long-term Debt, Due December 2023 [Member]
Other Long-term Debt, Due June 2024 [Member]
Other Long-term Debt, Due June 2024 [Member]
Other Long Term Debt Due November 2025 [Member]
Other Long Term Debt Due November 2025 [Member]
Other Long Term Debt Due June 2027 [Member]
Other Long Term Debt Due June 2027 [Member]
Other Long Term Debt Due June 2027 [Member]
Other Long Term Debt Due February 2028 [Member]
Other Long Term Debt Due February 2028 [Member]
Other Long Term Debt Due February 2028 [Member]
Other Long Term Debt Due February 2038 [Member]
Other Long Term Debt Due February 2038 [Member]
Other Long Term Debt Due February 2038 [Member]
Other Long-term Debt, Due October 2039 [Member]
Other Long-term Debt, Due October 2039 [Member]
Other Long Term Debt Due February 2048 [Member]
Other Long Term Debt Due February 2048 [Member]
Other Long Term Debt Due February 2048 [Member]
Other Long-term Debt, Junior Subordinated Notes, Due July 2079 [Member]
Other Long-term Debt, Junior Subordinated Notes, Due July 2079 [Member]
Other Long-term Debt, Junior Subordinated Notes, Due July 2079 [Member]
Other Long-Term Debt, Due 2016 Through December 2026 [Member]
Other Long-Term Debt, Due 2016 Through December 2026 [Member]
Other Long-Term Debt, Due 2016 Through December 2026 [Member]
Other Long-term Debt, Currently Through January 2028 [Member]
Other Long-term Debt, Currently Through January 2028 [Member]
Other Long-term Debt, Currently Through January 2028 [Member]
Other Long-Term Debt, Payable 2016 Through March 2032 [Member]
Other Long-Term Debt, Payable 2016 Through March 2032 [Member]
Other Long-Term Debt, Payable 2016 Through March 2032 [Member]
Other Long-term Debt, Currently Through January 2048 [Member]
Other Long-term Debt, Currently Through January 2048 [Member]
Other Long-term Debt, Currently Through January 2048 [Member]
Other Long-term Debt, Currently Through July 2028 [Member]
Other Long-term Debt, Currently Through July 2028 [Member]
Other Long-term Debt, Currently Through July 2028 [Member]
Other Long-Term Debt, Payable 2022 Through November 2034 [Member]
Other Long-Term Debt, Payable 2022 Through November 2034 [Member]
Other Long-Term Debt, Payable 2022 Through November 2034 [Member]
Other Long-term Debt, Currently Through October 2026 [Member]
Other Long-term Debt, Currently Through October 2026 [Member]
Other Long-term Debt, Currently Through October 2026 [Member]
Long term debt and lease obligations, including current maturities
Long-term Debt and Lease Obligation, Including Current Maturities
Finance lease obligations and other long term debt
Finance Lease Obligations and Other Long Term Debt
Finance Lease Obligations and Other Long Term Debt
Build to suit arrangement
Build to suit arrangement
Build-to-suit lease.
Current portion of long-term debt
Unamortized discount on long-term debt
Unamortized debt issuance costs
Unamortized Debt Issuance Expense
Debt and Lease Obligation
Debt and Lease Obligation
Long-term debt subject to fixed rate
Long-term Debt, Percentage Bearing Fixed Interest, Amount
Long-term debt subject to variable rate
Long-term Debt, Percentage Bearing Variable Interest, Amount
Condensed Financial Information Of Parent Schedule Of Long Term Debt [Table]
Condensed Financial Information Of Parent Schedule Of Long Term Debt [Table]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
PERU
PERU
Other Long Term Debt, Due March 2021 [Member]
Other Long-term Debt, Due October 2022 [Member]
Other Long-term Debt, Due December 2023 [Member]
Other Long Term Debt Due June 2024 [Member]
Other Long-term Debt, Due November 2025 [Member]
Condensed Financial Information of Parent, Long-term Debt [Line Items]
Basis of Presentation
Investment gains (losses) on Rabbi Trust
Gain (loss) on settlement
Cash dividends received
Proceeds from Dividends Received
New Accounting Standards
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Right-of-use assets - operating leases
Long-term debt
Long-term Debt
Tax Cuts and Jobs Act of 2017, reclassification From AOCI to retained earnings, tax effect
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect
Debt Disclosure [Abstract]
Debt Instruments [Abstract]
Debt Instruments [Abstract]
Build-to-suit arrangement
Long-term Debt, Fiscal Year Maturity [Abstract]
Long-term Debt, Fiscal Year Maturity [Abstract]
Operating leases
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Total operating lease commitments
Lessee, Operating Lease, Liability, Payments, Due
2020
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months
2021
Lessee, Operating Lease, Liability, Payments, Due Year Two
2022
Lessee, Operating Lease, Liability, Payments, Due Year Three
2023
Lessee, Operating Lease, Liability, Payments, Due Year Four
2024
Lessee, Operating Lease, Liability, Payments, Due Year Five
Thereafter
Lessee, Operating Lease, Liability, Payments, Due after Year Five
Great Valley Solar [Member]
Great Valley Solar [Member]
Great Valley Solar [Member]
Number of projects acquired
Asset Acquisition, Number of Projects Acquired
Asset Acquisition, Number of Projects Acquired
Compania Transmisora del Norte Grande S.A. [Member]
Compania Transmisora del Norte Grande S.A. [Member]
Compania Transmisora del Norte Grande S.A. [Member]
Sempra South American Utilities [Member]
Sempra South American Utilities [Member]
Cash and cash equivalents
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents
Identifiable assets acquired
Liabilities assumed
Income Statement [Abstract]
Cost of natural gas [Member]
Natural Gas, US Regulated [Member]
Cost of electric fuel and purchased power [Member]
Electricity, US Regulated [Member]
Energy-related businesses cost of sales [Member]
Natural Gas and Electricity, US Regulated [Member]
Natural Gas and Electricity, US Regulated [Member]
Revenues
Regulated and Unregulated Operating Revenue [Abstract]
Electric
Regulated Operating Revenue, Electric, Non-Nuclear
Natural Gas
Regulated Operating Revenue, Gas
Utilities
Operating expenses
Expenses And Other Income [Abstract]
Operating expenses
Cost of Goods and Services Sold
Operation and maintenance
Other Cost and Expense, Operating
Depreciation and amortization
Franchise fees and other taxes
Taxes, Other
Write-off of wildfire regulatory asset
Impairment losses
Other Income, net
Operating expenses
Utilities Operating Expense [Abstract]
Cost of electric fuel and purchased power
Utilities Operating Expense, Purchased Power
Cost of natural gas
Utilities Operating Expense, Gas and Petroleum Purchased
Operation and maintenance
Utilities Operating Expense, Maintenance and Operations
Franchise fees and other taxes
Utilities Operating Expense, Taxes
Total operating expenses
Earnings Per Share, Basic [Abstract]
Earnings Per Share, Basic [Abstract]
Earnings Per Share, Diluted [Abstract]
Earnings Per Share, Diluted [Abstract]
Share-based Compensation
Share-based Payment Arrangement [Text Block]
Total undiscounted lease payments
Less: imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total lease liabilities
Less: current lease liabilities
Long-term lease liabilities
Finance leases
Finance Lease, Liability, Payment, Due [Abstract]
2020
Finance Lease, Liability, Payments, Due Next Twelve Months
2021
Finance Lease, Liability, Payments, Due Year Two
2022
Finance Lease, Liability, Payments, Due Year Three
2023
Finance Lease, Liability, Payments, Due Year Four
2024
Finance Lease, Liability, Payments, Due Year Five
Thereafter
Finance Lease, Liability, Payments, Due after Year Five
Total undiscounted lease payments
Finance Lease, Liability, Payment, Due
Less: imputed interest
Finance Lease, Liability, Undiscounted Excess Amount
Total lease liabilities
Less: current lease liabilities
Variable lease payments, due in 2020
Variable Lease, Payments, Due Next Twelve Months
Variable Lease, Payments, Due Next Twelve Months
Variable lease payments, due in 2021
Variable Lease, Payments, Due Year Two
Variable Lease, Payments, Due Year Two
Variable lease payments, due in 2022
Variable Lease, Payments, Due Year Three
Variable Lease, Payments, Due Year Three
Variable lease payments, due in 2023
Variable Lease, Payments, Due Year Four
Variable Lease, Payments, Due Year Four
Variable lease payments, due in 2024
Variable Lease, Payments, Due Year Five
Variable Lease, Payments, Due Year Five
Variable lease payments, due thereafter
Variable Lease, Payments, Due After Year Five
Variable Lease, Payments, Due After Year Five
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Table]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Table]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Line Items]
Income tax expense (benefit) from continuing operations
Income from continuing operations before income taxes and equity earnings
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory income tax rate
Foreign exchange and inflation effects
Effective Income Tax Rate Reconciliation, Foreign Exchange And Inflation Effects
Effective income tax rate reconciliation, foreign exchange and inflation effects.
Non-U.S. earnings taxed at lower statutory income tax rates
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Depreciation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent
State income taxes, net of federal income tax benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Effects of the TCJA
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent
Compensation-related items
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent
Unrecognized income tax benefits
Effective Income Tax Rate Reconciliation, Unrecognized Income Tax Benefits
Effective Income Tax Rate Reconciliation, Unrecognized Income Tax Benefits
Noncontrolling interests in tax equity arrangements
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent
Resolution of prior years’ income tax items
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent
Impairment losses at Sempra LNG
Effective Income Tax Rate Reconciliation, Disposition of Business, Percent
Allowance for equity funds used during construction
Effective Income Tax Rate Reconciliation, Allowance For Equity Funds Used During Construction
Effective income tax rate reconciliation, allowance for equity funds used during construction.
Amortization of excess deferred income taxes
Effective Income Tax Rate Reconciliation, Amortization Of Excess Deferred Income Taxes
Effective Income Tax Rate Reconciliation, Amortization Of Excess Deferred Income Taxes
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Percent
Utility self-developed software expenditures
Effective Income Tax Rate Reconciliation, Self Developed Software Expenditures
Effective income tax rate reconciliation, self developed software expenditures.
Utility repairs expenditures
Effective Income Tax Rate Reconciliation, Utility Repair Allowance
Effective income tax rate reconciliation, utility repair allowance.
Excess deferred income taxes outside of ratemaking
Effective Income Tax Rate Reconciliation, Merger Transaction Costs
Effective Income Tax Rate Reconciliation, Merger Transaction Costs
Other, net
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Equity Method Investments and Joint Ventures [Abstract]
Cameron LNG [Member]
Cameron LNG [Member]
Other Long Term Debt, Due July 2030 [Member]
Other Long Term Debt, Due July 2030 [Member]
Undistributed earnings of equity method investments
Undistributed Earnings, Equity Method Investments
Undistributed earnings of equity method investments.
Undistributed earnings, equity method investments, over 50 percent owned
Undistributed Earnings, Equity Method Investments Over 50 Percent Owned
Undistributed Earnings, Equity Method Investments Over 50 Percent Owned
Payments to acquire equity method investments
Payments to Acquire Equity Method Investments
Cash contributed to fund the acquisition
Commitment to Invest
Commitment to Invest
Dividends
Dividends
Payments from tax sharing arrangements
Payments From Tax Sharing Arrangements
Payments From Tax Sharing Arrangements
Post-closing adjustments
Payments To Acquire Equity Method Investments, Post Closing Adjustments
Payments To Acquire Equity Method Investments, Post Closing Adjustments
Transportation service contract term
Transportation Service Contract, Term
Transportation Service Contract, Term
Project capacity
Project Capacity (Mass)
Project Capacity (Mass)
Proved undeveloped reserve
Project Export Capability (Mass)
Project Export Capability (Mass)
Proved undeveloped reserve per day
Proved Undeveloped Reserve Per Day (Volume)
Proved Undeveloped Reserve Per Day (Volume)
Interest costs capitalized
Debt instrument converted
Debt Conversion, Converted Instrument, Amount
Fixed percentage interest rate
Weighted average rate prior to project completion
Weighted Average All In Cost of Loans Outstanding, Prior to Completion of Project
Weighted Average All In Cost of Loans Outstanding, Prior to Completion of Project
Weighted average rate after project completion
Weighted Average All In Cost Of Loans Outstanding, Post Project Completion
Weighted Average All In Cost Of Loans Outstanding, Post Project Completion
Percentage of debt hedged by interest rate derivatives
Percentage of Debt Hedged by Interest Rate Derivatives
Threshold for canceling of hedge, Percent of unamortized principal
Debt Instrument Subject to Hedging, Threshold for Canceling of Hedge, Percent of Unamortized Principal
Debt Instrument Subject to Hedging, Threshold for Canceling of Hedge, Percent of Unamortized Principal
Notional amount of derivatives
Derivative, Notional Amount
Derivative amount terminated
Derivative Instrument, Amount Terminated
Derivative Instrument, Amount Terminated
Effective fixed rate (as a percent)
Derivative, Effective Fixed Interest Rate
Derivative, Effective Fixed Interest Rate
Weighted-average all-in cost of loans outstanding (as a percent)
Weighted Average All In Cost Of Loans Outstanding
Weighted Average All In Cost Of Loans Outstanding
Maximum exposure percentage
Guarantor Obligations, Maximum Exposure, Percentage
Guarantor Obligations, Maximum Exposure, Percentage
Debt instrument, maximum borrowing amount
Guarantor Obligations, Maximum Exposure, Undiscounted
Maximum exposure, remaining percentage
Guarantor Obligations, Maximum Exposure, Remaining Percentage
Guarantor Obligations, Maximum Exposure, Remaining Percentage
Fair value at origin guarantee obligation associated with cash flow requirements
Fair Value At Origin Guarantee Obligation Associated With Cash Flow Requirements
Fair value at origin guarantee obligation associated with cash flow requirements.
Indirect economic and beneficial and ownership interest prior to financial completion
Indirect economic and benefical and ownership interest prior to financial completion
Indirect economic and beneficial and ownership interest after financial completion
Indirect economic and benefical and ownership interest after financial completion
Site Contingency [Table]
Site Contingency [Table]
Environmental Remediation Site [Axis]
Environmental Remediation Site [Axis]
Environmental Remediation Site [Domain]
Environmental Remediation Site [Domain]
Manufactured Gas Sites [Member]
Manufactured Gas Sites [Member]
Waste Disposal Sites [Member]
Waste Disposal Sites [Member]
Other Hazardous Waste Sites [Member]
Other Hazardous Waste Sites [Member]
Other Hazardous Waste Sites [Member]
California Coastal Reef Expansion [Member]
California Coastal Reef Expansion [Member]
California Coastal Reef Expansion [Member]
SONGS Sites [Member]
SONGS Sites [Member]
SONGS Sites [Member]
Site Contingency [Line Items]
Site Contingency [Line Items]
Site Contingency, Sites Completed
Site Contingency, Sites Completed
Site contingency, sites completed.
Site Contingency, Sites In Process
Site Contingency, Sites In Process
Site contingency, sites in process.
Accrual for environmental loss contingencies
Accrual for Environmental Loss Contingencies, Gross
Accrual for environmental loss contingencies, current
Accrued Environmental Loss Contingencies, Current
Accrual for environmental loss contingencies, noncurrent
Accrued Environmental Loss Contingencies, Noncurrent
Expected future payments for accruals, 2020
Payments For Accrued Environmental Loss Contingencies, Next Twelve Month
Payments For Accrued Environmental Loss Contingencies, Next Twelve Month
Expected future payments for accruals, 2021
Payments For Accrued Environmental Loss Contingencies, Year Two
Payments For Accrued Environmental Loss Contingencies, Year Two
Expected future payments for accruals, 2022
Payments For Accrued Environmental Loss Contingencies, Year Three
Payments For Accrued Environmental Loss Contingencies, Year Three
Expected future payments for accruals, 2023
Payments For Accrued Environmental Loss Contingencies, Year Four
Payments For Accrued Environmental Loss Contingencies, Year Four
Expected future payments for accruals, 2024
Payments For Accrued Environmental Loss Contingencies, Year Five
Payments For Accrued Environmental Loss Contingencies, Year Five
Estimated SONGS mitigation costs, recoverable in rates
Site Contingency, Loss Exposure Not Accrued, Best Estimate
SONGS mitigation costs incurred
Environmental Remediation Expense
SONGS mitigation costs remaining
Environmental Exit Costs, Anticipated Cost
Payments For Accrued Environmental Loss Contingencies, After Year Five
Payments For Accrued Environmental Loss Contingencies, After Year Five
Payments For Accrued Environmental Loss Contingencies, After Year Five
Segment Reporting, Disclosure Of Entity's Reportable Segments [Abstract]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Adjustment and Elimination [Member]
Segment Reconciling Items [Member]
Intersegment Eliminations [Member]
Intersegment Eliminations [Member]
All Other [Member]
Corporate, Non-Segment [Member]
Entity-Wide Disclosure On Geographic Areas, United States [Member]
Entity-Wide Disclosure On Geographic Areas, United States [Member]
Entity-Wide Disclosure On Geographic Areas Mexico [Member]
Entity-Wide Disclosure On Geographic Areas Mexico [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Segment Reporting Information, Profit (Loss) [Abstract]
Segment Reporting Information, Profit (Loss) [Abstract]
Segment reporting information, Revenue
Revenues
Segment reporting information, Interest Expense
Segment reporting information, Interest Income
Segment reporting information, Depreciation and Amortization
Depreciation, Depletion and Amortization
Segment Reporting Information, Additional Information [Abstract]
Segment Reporting Information, Additional Information [Abstract]
Segment Reporting Information Expenditures For Property Plant and Equipment
Additions to Other Assets, Amount
Segment reporting information, Assets
Assets, geographical
Long-Lived Assets
Schedule Of Net Regulatory Assets (Liabilities) [Table]
Schedule Of Net Regulatory Assets (Liabilities) [Table]
Component Of Net Regulatory Assets (Liabilities) [Axis]
Component Of Net Regulatory Assets (Liabilities) [Axis]
Net Regulatory Assets (Liabilities) [Domain]
Net Regulatory Assets (Liabilities) [Domain]
Fixed-price contracts and other derivatives [Member]
Fixed Price Contracts And Other Derivatives [Member]
Deferred income taxes (refundable) recoverable in rates [Member]
Deferred Income Tax Charge [Member]
Pension and other postretirement benefit plan obligations [Member]
Pension And Other Postretirement Benefit Obligations [Member]
Employee benefit costs [Member]
Employee Benefit Costs [Member]
Removal obligations [Member]
Environmental costs [Member]
Environmental Restoration Costs [Member]
Sunrise Powerlink fire mitigation [Member]
Sunrise Powerlink Fire Mitigation [Member]
Regulatory Balancing Accounts, Commodity – electric [Member]
Regulatory Balancing Accounts, Commodities, Electricity [Member]
Regulatory Balancing Accounts, Commodities, Electricity [Member]
Regulatory Balancing Accounts, Gas transportation [Member]
Regulatory Balancing Accounts, Gas Transportation [Member]
Regulatory Balancing Accounts, Gas Transportation [Member]
Regulatory Balancing Accounts, Safety and reliability [Member]
Regulatory Balancing Accounts, Safety and Reliability [Member]
Regulatory Balancing Accounts, Safety and Reliability [Member]
Regulatory Balancing Accounts, Public purpose programs [Member]
Regulatory Balancing Accounts, Public Purpose Programs [Member]
Regulatory Balancing Accounts, Public Purpose Programs [Member]
Regulatory Balancing Accounts, Commodity - gas including transportation
Regulatory Balancing Accounts, Commodities, Gas and Transportation [Member]
Regulatory Balancing Accounts, Commodities, Gas and Transportation [Member]
GRC retroactive impacts [Member]
GRC retroactive impacts [Member]
GRC retroactive impacts [Member]
Regulatory Balancing Accounts, Other balancing accounts [Member]
Regulatory Balancing Accounts, Other [Member]
Regulatory Balancing Accounts, Other [Member]
Other regulatory (liabilities) assets [Member]
Other [Member]
Other [Member]
Net Regulatory Assets (Liabilities) SDGE [Member]
Net Regulatory Assets (Liabilities) S D G E [Member]
Net Regulatory Assets (Liabilities) SoCalGas [Member]
Net Regulatory Assets (Liabilities) So Cal Gas [Member]
Other Regulatory Assets [Member]
Other Regulatory Assets [Member]
Other Regulatory Assets [Member]
Net Regulatory Assets (Liabilities) Sempra Energy Consolidated [Member]
Net Regulatory Assets (Liabilities) Sempra Energy Consolidated [Member]
Schedule Of Net Regulatory Assets (Liabilities) [Line Items]
Schedule Of Net Regulatory Assets (Liabilities) [Line Items]
Net regulatory assets (liabilities)
Net Regulatory Assets (Liabilities)
Net regulatory assets (liabilities).
Regulatory balancing accounts - net undercollected, Noncurrent
Regulatory Balancing Accounts, Undercollected, Noncurrent
Regulatory Balancing Accounts, Undercollected, Noncurrent
Remaining amortization period
Remaining Amortization Period
Amortization expense on regulatory assets
Amortization Expense On Regulatory Assets
Amortization Expense On Regulatory Assets
Equity Method Investee [Member]
Equity Method Investee [Member]
Cash flow hedge gain (loss) to be reclassified within 12 months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Maximum length of time hedged in cash flow hedge
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Renewable energy and consumption permit [Member]
Self-supply Generation Permits [Member]
Self-supply Generation Permits [Member]
O&M agreement [Member]
Operation and Maintenance Agreement [Member]
Operation and Maintenance Agreement [Member]
Other [Member]
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Amortization period
Finite-Lived Intangible Asset, Useful Life
Intangible assets, gross
Finite-Lived Intangible Assets, Gross
Total intangible assets, gross
Intangible Assets, Gross (Excluding Goodwill)
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Intangible assets amortization expense
Amortization of Intangible Assets
Future intangible asset amortization expense per year
Finite Lived Intangible Assets, Future Amortization Expense Per Year
Finite lived intangible assets, future amortization expense per year.
Schedule Of Callable Long-term Debt [Table]
Schedule Of Callable Long-term Debt [Table]
Schedule Of Callable Long-term Debt [Line Items]
Schedule Of Callable Long-term Debt [Line Items]
Callable long-term debt, subject to make-whole provisions
Callable Long term Debt Subject To Make Whole Provisions
Callable long-term debt subject to make whole provisions.
Schedule of Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Condensed Statement of Comprehensive Income [Table]
Condensed Statement of Comprehensive Income [Table]
Income tax benefit [Member]
Condensed Statement of Income Captions [Line Items]
Condensed Statement of Income Captions [Line Items]
Schedule of Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Schedule of Timing of Remaining Performance Obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Schedule of Contract Liabilities
Contract with Customer, Asset and Liability [Table Text Block]
Schedule of Contract Accounts Receivable
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Foreign currency translation adjustments [Member]
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Financial instruments [Member]
Pension and other postretirement benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, beginning balance
OCI before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Amounts reclassified from AOCI
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
AOCI, ending balance
Asset Retirement Obligations [Table]
Asset Retirement Obligations [Table]
Termoelectrica de Mexicali [Member]
Termoelectrica de Mexicali [Member]
Asset Retirement Obligations [Line Items]
Asset Retirement Obligations [Line Items]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning Balance
Accretion expense
Asset Retirement Obligation, Accretion Expense
Liabilities incurred
Asset Retirement Obligation, Liabilities Incurred
Deconsolidation and reclassification
Asset Retirement Obligations Reclassification
Asset retirement obligations, reclassification.
Payments
Asset Retirement Obligation, Liabilities Settled
Revisions
Asset Retirement Obligation, Revision of Estimate
Ending Balance
Reclassified to held for sale
Asset Retirement Obligations Reclassification to Held for Sale
Asset Retirement Obligations Reclassification to Held for Sale
Reclassified from held for sale
Asset Retirement Obligations Reclassification from Held for Sale
Asset Retirement Obligations Reclassification from Held for Sale
Commodity Derivative Volumes Table
Schedule of Derivative Instruments [Table Text Block]
Notional Amounts Of Interest Rate Derivatives Table
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Derivative Instruments on the Consolidated Balance Sheet Table
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Cash Flow Hedge Impact on the Consolidated Statements Of Operations Table
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Undesignated Derivative Impact on the Consolidated Statements of Operations
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Impact of Changes in Legislation
Schedule of Impact of Changes in Legislation [Table Text Block]
Schedule of Impact of Changes in Legislation [Table Text Block]
Schedule Of Geographic Components Of Income Before Income Taxes And Equity Earnings Of Certain Unconsolidated Subsidiaries
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule Of Components Of Income Tax Expense
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule Of Components Of Deferred Tax Assets And Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Summary of Tax Credit Carryforwards
Summary of Tax Credit Carryforwards [Table Text Block]
Summary of Operating Loss Carryforwards
Summary of Operating Loss Carryforwards [Table Text Block]
Summary of Income Tax Contingencies
Summary of Income Tax Contingencies [Table Text Block]
Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible
Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
U.S. Federal [Member]
Domestic Tax Authority [Member]
U.S. state [Member]
State and Local Jurisdiction [Member]
Tax Credit Carryforward [Axis]
Tax Credit Carryforward [Axis]
Tax Credit Carryforward, Name [Domain]
Tax Credit Carryforward, Name [Domain]
General business tax credits [Member]
General Business Tax Credit Carryforward [Member]
Foreign tax credits [Member]
Foreign Tax Credits [Member]
Foreign Tax Credits [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
NOLs
Operating Loss Carryforwards
Tax credits
Tax Credit Carryforward, Amount
Valuation allowances
Schedule of Line of Credit Facilities
Schedule of Line of Credit Facilities [Table Text Block]
Schedule of Maturities of Long-term Debt
Schedule of Maturities of Long-term Debt [Table Text Block]
Schedule Of Callable Long Term Debt
Schedule Of Callable Long Term Debt [Table Text Block]
Schedule Of Callable Long Term Debt [Table Text Block]
Lessor, Lease, Description [Table]
Lessor, Lease, Description [Table]
Assets Leased to Others [Member]
Assets Leased to Others [Member]
Lessor, Lease, Description [Line Items]
Lessor, Lease, Description [Line Items]
Assets held for sale
Accumulated depreciation
2020
Lessor, Operating Lease, Payments to be Received, Next Twelve Months
2021
Lessor, Operating Lease, Payments to be Received, Two Years
2022
Lessor, Operating Lease, Payments to be Received, Three Years
2023
Lessor, Operating Lease, Payments to be Received, Four Years
2024
Lessor, Operating Lease, Payments to be Received, Five Years
Thereafter
Lessor, Operating Lease, Payments to be Received, Thereafter
Total undiscounted cash flows
Lessor, Operating Lease, Payments to be Received
Fixed lease payments
Operating Lease, Lease Income, Lease Payments
Variable lease payments
Operating Lease, Variable Lease Income
Total revenues from operating leases
Operating Lease, Lease Income
Cross-currency swaps [Member]
Other foreign currency derivatives [Member]
Foreign Exchange [Member]
Employee Benefit Plans
Pension and Other Postretirement Benefits Disclosure [Text Block]
Common stock par value (in dollars per share)
Common Stock, No Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares outstanding, January 1
Shares issued under forward sale agreements
Stock Issued During Period, Forward Sale Agreements
Stock Issued During Period, Forward Sale Agreements
RSUs vesting
Stock Issued During Period, Shares, Restricted Stock Units, Vesting
Stock issued during period, shares, restricted stock units, vesting.
Stock options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Savings plan issuance
Stock Issued During Period, Shares, Savings Plan Issuance
Stock issued during period, shares, savings plan issuance.
Common stock investment plan
Stock Issued During Period, Shares, Dividend Reinvestment Plan
Issuance of RSUs held in our Deferred Compensation Plan
Stock Issued During Period, Deferred Compensation, Restricted Stock Units
Stock Issued During Period, Deferred Compensation, Restricted Stock Units
Shares repurchased
Stock Repurchased and Retired During Period, Shares
Common shares outstanding, December 31
Presentation Of Restricted Cash [Table]
Presentation Of Restricted Cash [Table]
Presentation Of Restricted Cash [Line Items]
Presentation Of Restricted Cash [Line Items]
Restricted cash, current
Restricted cash, noncurrent
Cash, cash equivalents and restricted cash in discontinued operations
Disposal Group, Including Discontinued Operation, Restricted Cash and Cash Equivalents
Disposal Group, Including Discontinued Operation, Restricted Cash and Cash Equivalents
Cash, cash equivalents and restricted cash, including discontinued operations, December 31
Total cash, cash equivalents and restricted cash on the Consolidated Statements of Cash Flows
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Award Date [Axis]
Award Date [Axis]
Award Date [Domain]
Award Date [Domain]
Awardsgrantedin2019 [Member]
Awardsgrantedin2019 [Member]
Awards granted in 2019 [Member]
Awardsgrantedin2010andprior [Member]
Awardsgrantedin2010andprior [Member]
Awardsgrantedin2010andprior [Member]
Awarded during or after two thousand fifteen [Member]
Awarded during or after two thousand fifteen [Member]
Awarded during or after two thousand fifteen [Member]
Awards Before 2015 [Member]
Awards Before 2015 [Member]
Awards Before 2015 [Member]
Awards Granted in 2013 and Earlier [Member]
Awards Granted in 2013 and Earlier [Member]
Awards Granted in 2013 and Earlier [Member]
Awarded During Or After Two Thousand and Fourteen [Member]
Awarded During Or After Two Thousand and Fourteen [Member]
Awarded During Or After Two Thousand and Fourteen [Member]
sre_Awardsbetween2015-2018 [Member]
sre_Awardsbetween2015-2018 [Member]
sre_Awardsbetween2015-2018 [Member]
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Option [Member]
Performance Shares [Member]
Performance Shares [Member]
Restricted Stock Units (RSUs), Service-based [Member]
Restricted Stock Units (RSUs), Service-based [Member]
Restricted Stock Units (RSUs), Service-based [Member]
Restricted Stock Units, Employee Stock Options, or Restricted Stock Awards [Member]
Restricted Stock Units, Employee Stock Options, or Restricted Stock Awards [Member]
Restricted Stock Units, Employee Stock Options, or Restricted Stock Awards [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Expiration period
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Award requisite service period
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period
Award vesting rights maximum additional award
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Maximum Additional Award
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Maximum Additional Award
Award vesting rights, Increase modifier for top quartile
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Increase Modifier for Top Quartile
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Increase Modifier for Top Quartile
Award vesting rights, decrease modifier for bottom quartile
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Decrease Modifier for Bottom Quartile
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Decrease Modifier for Bottom Quartile
Number of shares available for future grants (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Number of shares authorized for issuance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Share-based compensation expense, before income taxes
Share-based Payment Arrangement, Expense
Income tax benefit
Share-based Payment Arrangement, Expense, Tax Benefit
Capitalized share-based compensation cost
Share-based Payment Arrangement, Amount Capitalized
Excess income tax deficiency
Excess Tax Benefit from Share-based Compensation, Operating Activities
Share-based compensation expense, net of taxes
Employee Service Share-Based Compensation, Compensation Expense, Net Of Tax
Employee service share-based compensation, compensation expense, net of tax.
Stock option exercise period (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Weighted-average fair value for options granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value
Stock price volatility (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate
Expected term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Annual dividend yield (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Common shares under options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Options grants in period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Exercised (in shares)
Forfeited/canceled (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Ending balance (in shares)
Vested at period end (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Exercisable at period end (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number
Weighted- average exercise price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Forfeited/canceled (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Ending balance (in dollars per share)
Vested at period end, Weighted- average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Exercisable at period end, Weighted- average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price
Outstanding at period end, Weighted- average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Vested at period end, Weighted- average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Exercisable at period end, Weighted- average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term
Outstanding at period end, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Vested at period end, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Exercisable at period end, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value
Aggregate intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Cash received from exercise of options
Proceeds from Stock Options Exercised
Contract with Customer, Asset [Table]
Contract with Customer, Asset [Table]
Contract with Customer, Asset [Table]
Accounts receivable – trade, net [Member]
Trade Accounts Receivable [Member]
Accounts receivable – other, net [Member]
Accounts Receivable, Other, Net [Member]
Accounts Receivable, Other, Net [Member]
Due from unconsolidated affiliates – current [Member]
Due From Related Parties, Current [Member]
Due From Related Parties, Current [Member]
Assets held-for-sale [Member]
Assets Held-for-sale [Member]
Assets Held-for-sale [Member]
Contract with Customer, Asset [Line Items]
Contract with Customer, Asset [Line Items]
[Line Items] for Contract with Customer, Asset [Table]
Receivables from revenues from contracts with customers
Contract with Customer, Asset, after Allowance for Credit Loss
REVENUES
Revenue from Contract with Customer [Text Block]
Savings Plan [Table]
Savings Plan [Table]
Savings Plan [Line Items]
Savings Plan [Line Items]
Employer contributions to defined benefit plan
Defined Contribution Plan Employer Matching Amount
Defined contribution plan, employer matching amount.
Market value of employer stock held by plan
Savings Plan, Market Value Of Employer Stock Held By Plan
Savings plan, market value of employer stock held by plan.
Schedule Of Earnings Per Share Computations
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule Of Common Stock Activity
Schedule Of Common Stock Activity [Table Text Block]
Schedule Of Common Stock Activity [Table Text Block]
Rent expense
Operating Leases, Rent Expense
Capital lease depreciation expense
Capital Leases, Income Statement, Amortization Expense
Depreciation expense on leases
Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease
Chilquinta Energia [Member]
Chilquinta Energia [Member]
Luz Del Sur [Member]
Luz Del Sur [Member]
Luz Del Sur [Member]
Eletrans [Member]
Eletrans [Member]
Eletrans [Member]
State Grid International Development Limited [Member]
State Grid International Development Limited [Member]
State Grid International Development Limited [Member]
Revenues
Disposal Group, Including Discontinued Operation, Revenue
Cost of sales
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Operating expenses
Disposal Group, Including Discontinued Operation, Operating Expense
Interest and other
Disposal Group, Including Discontinued Operation, Interest Expense
Income before income taxes and equity earnings
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Income tax expense
Discontinued Operation, Tax Effect of Discontinued Operation
Equity earnings
Disposal Group, Including Discontinued Operation, Income (Loss) From Equity Investments
Disposal Group, Including Discontinued Operation, Income (Loss) From Equity Investments
Income (loss) from discontinued operations, net of income tax
Cash and cash equivalents
Accounts receivable, net
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net
Due from unconsolidated affiliates
Disposal Group, Including Discontinued Operation, Due From Affiliate, Current
Disposal Group, Including Discontinued Operation, Due From Affiliate, Current
Inventories
Disposal Group, Including Discontinued Operation, Inventory, Current
Other current assets
Due from unconsolidated affiliates
Disposal Group, Including Discontinued Operation, Due From Affiliate, Noncurrent
Disposal Group, Including Discontinued Operation, Due From Affiliate, Noncurrent
Goodwill and other intangible assets
Disposal Group, Including Discontinued Operation, Goodwill and Other Intangible Assets
Disposal Group, Including Discontinued Operation, Goodwill and Other Intangible Assets
Property, plant and equipment, net
Other noncurrent assets
Noncurrent assets
Short-term debt
Disposal Group, Including Discontinued Operation, Short-Term Debt
Disposal Group, Including Discontinued Operation, Short-Term Debt
Accounts payable
Disposal Group, Including Discontinued Operation, Accounts Payable, Current
Current portion of long-term debt and finance leases
Disposal Group, Including Discontinued Operation, Long-term Debt, Current Maturities
Disposal Group, Including Discontinued Operation, Long-term Debt, Current Maturities
Other current liabilities
Disposal Group, Including Discontinued Operation, Other Liabilities, Current
Long-term debt and finance leases
Disposal Group, Including Discontinued Operation, Long-Term Debt and Finance Leases
Disposal Group, Including Discontinued Operation, Long-Term Debt and Finance Leases
Deferred income taxes
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities
Other noncurrent liabilities
Noncurrent liabilities
Cumulative foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax