Organization, Consolidation and Presentation of Financial Statements [Abstract]
Statement [Table]
Statement [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
PSE And G [Member]
Pse And G [Member]
PSE and G [Member]
Power [Member]
Power [Member]
Power [Member]
Statement [Line Items]
Statement [Line Items]
Organization and Basis of Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Document Information [Table]
Document Information [Table]
Entity Information [Line Items]
Entity Information [Line Items]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Trading Symbol
Trading Symbol
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Current Reporting Status
Entity Current Reporting Status
Entity Filer Category
Entity Filer Category
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Disclosure Changes In Capitalization [Abstract]
Disclosure - Changes In Capitalization [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Term Loan maturing in 2019 [Member]
Term Loan maturing in 2019 [Member]
Term Loan maturing in 2019 [Member]
Pollution Control Notes Floating Rate Due On Two Thousand Fourteen [Member]
Pollution Control Notes Floating Rate Due On Two Thousand Fourteen [Member]
Pollution Control Notes Floating Rate Due On Two Thousand Fourteen [Member]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
PSEG [Member]
Parent Company [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Debt Instrument, Face Amount
Debt Instrument, Face Amount
Repayments of Long-term Debt
Repayments of Long-term Debt
Long-term Debt, Gross
Long-term Debt, Gross
Recent Accounting Standards [Abstract]
Recent Accounting Standards [Abstract]
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Operating Lease Right of Use Assets [Member]
Operating Lease Right of Use Assets [Member]
Operating Lease Right of Use Assets [Member]
Operating Lease Liabilities [Member]
Operating Lease Liabilities [Member]
Operating Lease Liabilities [Member]
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 2018-02 [Member]
Accounting Standards Update 2018-02 [Member]
Accounting Standards Update 2018-02 [Member]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Domain]
Adjustments for Change in Accounting Principle [Domain]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
Reclassification of deferred rent liabilities and incentives
Reclassification of deferred rent liabilities and incentives
Reclassification of deferred rent liabilities and incentives
Receivables [Abstract]
Schedule Of Financial Receivables [Table]
Schedule Of Financial Receivables [Table]
Schedule Of Financial Receivables [Table]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Powerton Station Units 5 And 6 [Member]
Powerton Station [Member]
Powerton Station
Joliet Station Units 7 And 8 [Member]
Joliet Station [Member]
Joliet Station
Shawville Station Units 1, 2, 3 And 4 [Member]
Shawville Station [Member]
Shawville Station
Schedule of Financial Receivables [Line Items]
Schedule of Financial Receivables [Line Items]
Schedule of Financial Receivables [Line Items]
Location
Lease Receivable Asset Location
Lease Receivable, Asset Location
Gross Investment
Lease Receivable Gross Investment
Lease Receivable, Gross Investment
% Owned
Lease Receivable Percent Owned
Lease Receivable, Percent Owned
Total MW
Lease Receivable Asset Capacity
Lease Receivable, Asset Capacity
Fuel Type
Lease Receivable Asset Fuel Type
Lease Receivable, Asset, Fuel Type
Counterparties’ S&P Credit Ratings
Lease Receivable Counterparties Credit Ratings
Lease receivable counterparties credit ratings
Counterparty
Lease Receivable Counterparty
Lease Receivable, Counterparty
Other Current Assets [Member]
Other Current Assets [Member]
Other Noncurrent Assets [Member]
Other Noncurrent Assets [Member]
Other Entities [Member]
Other Entities [Member]
Other Entities [Member]
Cash and Cash Equivalents
Cash and Cash Equivalents, at Carrying Value
Restricted Cash in Other Current Assets
Restricted Cash and Investments, Current
Restricted Cash in Other Noncurrent Assets
Restricted Cash and Investments, Noncurrent
Cash, Cash Equivalents and Restricted Cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Commitments and Contingencies Disclosure [Abstract]
Site Contingency [Table]
Site Contingency [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Environmental Remediation Contingency [Axis]
Environmental Remediation Contingency [Axis]
Environmental Remediation Contingency [Domain]
Environmental Remediation Contingency [Domain]
Pse G S Former Mgp Sites [Member]
Pse G S Former Mgp Sites [Member]
PSE&G's former MGP sites [Member]
Passaic River Site Contingency [Member]
Passaic River Site Contingency [Member]
Passaic River Site Contingency [Member]
Mgp Remediation Site Contingency [Member]
Mgp Remediation Site Contingency [Member]
MGP Remediation Site Contingency [Member]
Site Contingency [Line Items]
Site Contingency [Line Items]
Number of miles related to the Passaic River constituting a facility as determined by the US Environmental Protection Agency
Number Of Miles Pertaining To Passaic River Facility As Determined By Epa
Number of miles pertaining to Passaic River facility as determined by EPA
Number of former generating electric station
Number Of Former Generating Electric Station
Number of former generating electric station
Number of former Manufactured Gas Plant (MGP) sites
Number Of Former Manufactured Gas Plant Mgp Sites
Number of former Manufactured Gas Plant (MGP) sites.
Loss Contingency, Estimate of Possible Loss
Loss Contingency, Estimate of Possible Loss
Percentage of cost attributable to potentially responsible party
Percentage Of Cost Attributable To Potentially Responsible Party
Percentage Of Cost Attributable To Potentially Responsible Party
Estimated Cleanup Costs EPA Preferred Method
Estimated Cleanup Costs EPA Preferred Method
Estimated Cleanup Costs EPA Preferred Method
Claim against Tierra and Maxus amount
Claim against Tierra and Maxus amount
Claim against Tierra and Maxus amount
Accrual for Environmental Loss Contingencies
Accrual for Environmental Loss Contingencies
Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River
Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River
Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River
Number of additional legal entities contacted by EPA in conjunction with Newark Bay study area contamination
Number Of Additional Legal Entities Contacted By Epa In Conjunction With Newark Bay Study Area Contamination
Number Of Additional Legal Entities Contacted By EPA In Conjunction With Newark Bay Study Area Contamination
Estimated cost of interim natural resource injury restoration
Estimated Cost Of Interim Natural Resource Injury Restoration
Estimated Cost Of Interim Natural Resource Injury Restoration
Number of operating electric generating stations located on Hackensack River
Number Of Operating Electric Generating Stations Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination
Number Of Operating Electric Generating Stations Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination
Number of former MGP contamination sites located on Hackensack river in conjunction with Newark Bay study area contamination
Number Of Former Mgp Contamination Sites Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination
Number Of Former MGP Contamination Sites Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination
Remediation Liability Recorded As Other Current Liabilities
Remediation Liability Recorded As Other Current Liabilities
Remediation Liability Recorded As Other Current Liabilities
Remediation Liability Recorded As Other Noncurrent Liabilities
Remediation Liability Recorded As Other Noncurrent Liabilities
Remediation Liability Recorded As Other Noncurrent Liabilities
Regulatory Assets
Regulatory Assets
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative [Table]
Derivative [Table]
Collateral [Axis]
Collateral [Axis]
Collateral [Domain]
Collateral [Domain]
Cash [Member]
Cash [Member]
Letter of Credit [Member]
Letter of Credit [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Investment Grade - External Rating [Member]
Investment Grade External Rating [Member]
Investment Grade External Rating [Member]
Investment Grade [Member]
External Credit Rating, Investment Grade [Member]
External Credit Rating, Non Investment Grade [Member]
External Credit Rating, Non Investment Grade [Member]
Non-Investment Grade [Member]
Non Investment Grade External Rating [Member]
Non-Investment Grade External-Rating [Member]
Derivative [Line Items]
Derivative [Line Items]
Percentage Of Credit Exposure
Percentage Of Credit Exposure
Percentage Of Credit Exposure
Current Exposure
Total Credit Exposure With Counterparties
Total credit exposure with counterparties
Securities held as Collateral
Securities Held as Collateral, at Fair Value
Net exposure
Net Credit Exposure With Counterparties After Applying Collateral
Net credit exposure with counterparties after applying collateral
Number of Counterparties greater than 10%
Number Of Counterparties With Greater Than Ten Percent Of Net Credit Exposure
Number of counterparties with greater than ten percent of net credit exposure
Amount Of Net Credit Exposure Greater Than Ten Percent
Amount Of Net Credit Exposure Greater Than Ten Percent
Amount of net credit exposure greater than ten percent
Number Of Active Counterparties On Credit Risk Derivatives
Number Of Active Counterparties On Credit Risk Derivatives
Number of active counterparties on credit risk derivatives
Term Loan maturing in 2020 [Member]
Term Loan maturing in 2020 [Member]
Term Loan maturing in 2020 [Member]
Anticipated Issuances [Member]
Anticipated Issuances [Member]
Anticipated Issuances
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Cash Flow Hedges [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Interest Rate Swaps [Member]
Interest Rate Swaps [Member]
Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Interest Rate Hedge outstanding
Underlying, Derivative
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Derivative, Fair Value, Amount Offset Against Collateral, Net
Derivative, Fair Value, Amount Offset Against Collateral, Net
Fair Value of Derivatives with credit-risk related contingent features
Credit Risk Derivative Liabilities, at Fair Value
Aggregate fair value of derivative contracts in a liability position that contains triggers for additional collateral
Derivative Asset, Fair Value, Amount Offset Against Collateral
Additional collateral aggregate fair value
Additional Collateral, Aggregate Fair Value
Investments, Debt and Equity Securities [Abstract]
Schedule of Trust Investments [Table]
Schedule of Available-for-sale Securities [Table]
Trust Investment Type of Trust [Axis]
Trust Securities Type Of Trust [Axis]
Trust Securities Type of Trust [Axis]
Trust Investments Type Of Trust [Domain]
Available For Sale Securities Type Of Trust [Domain]
Available-for-Sale Securities Type of Trust [Domain]
Rabbi Trust [Member]
Rabbi Trust [Member]
Rabbi Trust [Member]
Schedule of Trust Investments [Line Items]
Debt Securities, Available-for-sale [Line Items]
Fair Values And Gross Unrealized Gains And Losses For The Securities Held In The NDT Fund
Fair Values And Gross Unrealized Gains And Losses For Securities Held In Ndt Funds [Table Text Block]
Fair values and gross unrealized gains and losses for the securities held in the NDT Funds
Schedule Of Accounts Receivable And Accounts Payable in the NDT Funds
Schedule Of Accounts Receivable And Accounts Payable in the NDT Funds [Table Text Block]
Accounts Receivable and Accounts Payable
Value Of Securities That Have Been In An Unrealized Loss Position For Less Than And Greater Than 12 Months
Schedule Of Available For Sale Securities Continuous Unrealized Loss Positions [Table Text Block]
Schedule Of Available For Sale Securities Continuous Unrealized Loss Positions [Text Block]
Securities Held In The Rabbi Trusts
Securities Held In Rabbi Trusts [Table Text Block]
Securities Held In Rabbi Trusts [Text Block]
Schedule of Accounts Receivable and Accounts Payable in the Rabbi Trust Funds [Table Text Block]
Schedule of Accounts Receivable and Accounts Payable in the Rabbi Trust Funds [Table Text Block]
[Table Text Block] for Schedule of Accounts Receivable and Accounts Payable in the Rabbi Trust Funds [Table]
Proceeds From The Sales Of And The Net Realized Gains On Securities In The NDT Funds And Rabbi Trusts
Available For Sale Securities Proceeds From Sales And Net Realized Gains [Table Text Block]
Available For Sale Securities Proceeds From Sales And Net Realized Gains [Text Block]
Amount Of Available-For-Sale Debt Securities By Maturity Periods
Amount Of Available For Sale Debt Securities By Maturity Periods [Table Text Block]
Amount Of Available-for-sale Debt Securities By Maturity Periods [Text Block]
Fair Value Of The Rabbi Trusts
Deferred Compensation Rabbi Trust Fair Value [Table Text Block]
Deferred compensation, Rabbi Trust, Fair Value
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
Pension Benefits [Member]
Pension Plan [Member]
OPEB [Member]
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Service Cost
Defined Benefit Plan, Service Cost
Interest Cost
Defined Benefit Plan, Interest Cost
Expected Return on Plan Assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Amortization of Prior Service Cost
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Amortization of Actuarial Loss
Defined Benefit Plan Actuarial Amortization Of Net Losses Gains
Defined Benefit Plan Actuarial Amortization Of Net Losses Gains
Non-Operating Pension and OPEB (Credits) Costs
Non-Operating Pension and Other Postretirement Plan Costs
Non-Operating Pension and Other Postretirement Plan Costs
Total Benefit Costs
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Accumulated Other Comprehensive Income (Loss), Net of Tax [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]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Non-Operating Pension and OPEB Credits (Costs) [Member]
Non-Operating Pension and OPEB Credits (Costs) [Member]
Non-Operating Pension and OPEB Credits (Costs) [Member]
Net Gains (Losses) on Trust Investments [Member]
Net Gains (Losses) on Trust Investments [Member]
Net Gains (Losses) on Trust Investments [Member]
Pension and OPEB Plans [Member]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Available-for-Sale Securities [Member]
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
[Line Items] for Reclassification out of Accumulated Other Comprehensive Income [Table]
Amortization of Prior Service (Cost) Credit, Pre-Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Amortization of Prior Service (Cost) Credit, Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax
Amortization of Prior Service (Cost) Credit, After-Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax
Amortization of Actuarial Loss, Pre-Tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
Amortization of Actuarial Loss, Tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax
Amortization of Actuarial Loss, After-Tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Reclassification Adjustment from AOCI, Pension and OPEB, Pre-Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax
Reclassification Adjustment from AOCI, Pension and OPEB, Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax
Reclassification Adjustment from AOCI, Pension and OPEB, After-Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax
Reclassification for Available for Sale Securities, Pre-Tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax
Reclassification for Available for Sale Securities, Tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
Reclassification for Available for Sale Securities, After-Tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Early Plant Retirements [Abstract]
Early Plant Retirements [Abstract]
Early Plant Retirements
Schedule of Restructuring and Related Costs [Table]
Early Plant Retirements [Line Items]
Restructuring Cost and Reserve [Line Items]
Related Party Transactions [Abstract]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Receivable From PSEG
Receivable From Parent
Receivable from PSEG
Payable To Power
Payable To Affiliate Through Bgs And Bgss Contracts
Payable to Power through BGS and BGSS Contracts
Payable To Services
Payable To Affiliate For Services
Payable to affiliate for services.
Payable to PSEG
Payable to Parent
Payable to Parent
Accounts Payable - Affiliated Companies
Due to Affiliate, Current
Working Capital Advances to Services
Advances to Affiliate
Long-Term Accrued Taxes Payable
Accounts Payable, Related Parties, Noncurrent
Debt Disclosure [Abstract]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Domain]
Short-term Debt, Type [Domain]
Five Year Credit Facility Maturing March 2022 [Member]
Revolving Credit Facility [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Three Year Credit Facilities Maturing March 2020 [Member]
Three Year Credit Facilities Maturing September 2021 [Member]
Letter of Credit Facilities expiring September 2021 [Member]
Letter of Credit Facilities expiring September 2021 [Member]
Credit Facility Reduction in March 2022
Credit Facility Reduction in March 2022
Credit Facility Reduction in March 2022
Commercial Paper
Commercial Paper
Commitments of Single Institution as Percentage of Total Commitments
Commitments of Single Institution as Percentage of Total Commitments
Commitments of Single Institution as Percentage of Total Commitments
Line of Credit Facility, Remaining Borrowing Capacity
Line of Credit Facility, Remaining Borrowing Capacity
Debt Instrument, Maturity Date, Description
Debt Instrument, Maturity Date, Description
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Fair Value of Amount Outstanding
Line of Credit Facility, Fair Value of Amount Outstanding
Short-term Debt, Weighted Average Interest Rate, at Point in Time
Short-term Debt, Weighted Average Interest Rate, at Point in Time
Leases [Abstract]
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2019
Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year
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 Minimum Future Lease Receipts
Lessor, Operating Lease, Payments to be Received
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Long Island Electric Utility Servco LLC Pension and OPEB [Member]
Long Island Electric Utility Servco LLC Pension and OPEB [Member]
Long Island Electric Utility Servco LLC Pension and OPEB [Member]
Pension Plan [Member]
Postretirement Healthcare Plans [Member]
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment
Employer contributions
Defined Benefit Plan, Plan Assets, Contributions by Employer
Total Benefit Costs
Debt and Credit Facilities
Debt Disclosure [Text Block]
Energy Holdings [Member]
Energy Holdings [Member]
Energy Holdings [Member]
Schedule Of Credit Risk Profile Based On Payment Activity
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Schedule Of Gross And Net Lease Investment
Schedule of Components of Leveraged Lease Investments [Table Text Block]
Schedule Of Lease Receivables, Net Of Nonrecourse Debt, Associated With Leveraged Lease Portfolio Based On Counterparty Credit Rating
Schedule Of Lease Receivables Net Of Nonrecourse Debt Associated With Leveraged Lease Portfolio Based On Counterparty Credit Rating [Text Block]
Schedule of Lease Receivables Net of Nonrecourse Debt Associated with Leveraged Lease Portfolio Based On Counterparty Credit Rating [Text Block]
Schedule Of Assets Under Lease Receivables
Schedule Of Assets Under Lease Receivables [Text Block]
Schedule of assets under lease receivables
Nuclear Decommissioning Trust (NDT) Fund [Member]
Nuclear Decommissioning Trust Ndt Funds [Member]
Nuclear Decommissioning Trust (NDT) Funds [Member]
Proceeds from Sales
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale
Gross Realized Gains
Available-for-sale Securities, Gross Realized Gains
Gross Realized Losses
Available-for-sale Securities, Gross Realized Losses
Net Realized Gains (Losses)
Realized Investment Gains (Losses)
Unrealized Gain (Loss) on Securities
Unrealized Gain (Loss) on Securities
Net Gains (Losses) on Trust Investments
Gain (Loss) on Investments
Earnings Per Share [Abstract]
Basic And Diluted Earnings Per Share Computation
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Dividend Payments On Common Stock
Dividend Payments On Common Stock [Table Text Block]
Dividend Payments On Common Stock Text Block
Loss Contingencies [Table]
Loss Contingencies [Table]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Face Value of Outstanding Guarantees
Guarantor Obligations, Maximum Exposure, Undiscounted
Exposure under Current Guarantees
Exposure Under Current Guarantees
Exposure under Current Guarantees
Letters of Credit Margin Posted
Letters Of Credit Margin Posted
Letters of Credit Margin Posted
Letters of Credit Margin Received
Letters Of Credit Margin Received
Letters of Credit Margin Received
Counterparty Cash Margin Deposited
Counterparty Cash Margin Deposited
Counterparty Cash Margin Deposited
Counterparty Cash Margin Received
Counterparty Cash Margin Received
Counterparty Cash Margin Received
Net Broker Balance Deposited (Received)
Net Broker Balance Received
Net Broker Balance Received
Other Letters of Credit
Additional Amounts Posted Other Letters Of Credit
Additional Amounts Posted Other Letters of Credit
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income
Net Income (Loss) Attributable to Parent
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and Amortization
Depreciation, Depletion and Amortization
Amortization of Nuclear Fuel
Amortization Of Nuclear Fuel
Amortization of nuclear fuel.
Emission Allowances and Renewable Energy Credit Compliance Accrual
Amortization of Intangible Assets
Provision for Deferred Income Taxes and ITC
Deferred Income Taxes and Tax Credits
Interest Accretion on Asset Retirement Obligations
Accretion Expense, Including Asset Retirement Obligations
Non-Cash Employee Benefit Plan (Credits) Costs
Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes
Leveraged Leases, Income (Loss)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives
Realized Unrealized Gain Loss On Derivatives And Commodity Contracts
Adjustment on the fair value of derivatives and commodity contracts resulting from changes in market prices from the time contracts are entered to the time of the reporting period.
Net Change in Regulatory Assets and Liabilities
Increase (Decrease) in Regulatory Assets and Liabilities
Cost of Removal
Payments for (Proceeds from) Removal Costs
Net Realized (Gains) Losses and (Income) Expense from NDT Fund
Net Realized Gains Losses And Income Expense From Nuclear Decommissioning Trust Funds
Net Realized Gains Losses And Income Expense From Nuclear Decommissioning Trust Funds
Net Change in Certain Current Assets and Liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts Receivable and Unbilled Revenues
Increase (Decrease) in Accounts and Other Receivables
Fuel, Materials and Supplies
Increase (Decrease) in Materials and Supplies
Tax Receivable
Increase (Decrease) in Income Taxes Receivable
Accrued Taxes
Increase (Decrease) in Accrued Taxes Payable
Margin Deposit
Increase (Decrease) in Margin Deposits Outstanding
Prepayments
Increase (Decrease) in Prepaid Expense
Accounts Receivable
Increase (Decrease) in Accounts Receivable
Accounts Payable
Increase (Decrease) in Accounts Payable
Accounts Receivable/Payable-Affiliated Companies, net
Increase (Decrease) in Accounts Payable, Related Parties
Other Current Assets and Liabilities
Increase (Decrease) in Other Current Assets and Liabilities, Net
Employee Benefit Plan Funding and Related Payments
Payment for Pension and Other Postretirement Benefits
Other
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Net Cash Provided By (Used In) Operating Activities
Net Cash Provided by (Used in) Operating Activities
CASH FLOWS FROM INVESTING ACTIVITIES
Net Cash Provided by (Used in) Investing Activities [Abstract]
Additions to Property, Plant and Equipment
Payments to Acquire Property, Plant, and Equipment
Purchase of Emissions Allowances and RECs
Payments to Acquire Intangible Assets
Proceeds from Sale of Available-for-Sale Securities
Proceeds from Sale of Available-for-sale Securities
Investments in Available-for-Sale Securities
Payments to Acquire Available-for-sale Securities
Solar Loan Investments
Issuance Of Loans For Solar Investments
Net cash outflow under approved solar loan programs for the period
Short-Term Loan-Affiliated Company
Increase (Decrease) Due from Affiliates
Other
Payments for (Proceeds from) Other Investing Activities
Net Cash Provided By (Used In) Investing Activities
Net Cash Provided by (Used in) Investing Activities
CASH FLOWS FROM FINANCING ACTIVITIES
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net Change in Commercial Paper and Loans
Proceeds from (Repayments of) Commercial Paper
Short-Term Loan-Affiliated Company
Increase (Decrease) in Due to Affiliates
Redemption of Long-term Debt
Repayments of Other Long-term Debt
Cash Dividends Paid on Common Stock
Payments of Ordinary Dividends, Common Stock
Other
Proceeds from (Payments for) Other Financing Activities
Net Cash Provided By (Used In) Financing Activities
Net Cash Provided by (Used in) Financing Activities
Net Increase (Decrease) In Cash, Cash Equivalents and Restricted Cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect
Cash, Cash Equivalents and Restricted Cash at Beginning of Period
Cash, Cash Equivalents and Restricted Cash at End of Period
Supplemental Disclosure of Cash Flow Information:
Supplemental Cash Flow Information [Abstract]
Income Taxes Paid (Received)
Income Taxes Paid, Net
Interest Paid, Net of Amounts Capitalized
Interest Paid, Excluding Capitalized Interest, Operating Activities
Accrued Property, Plant and Equipment Expenditures
Capital Expenditures Incurred but Not yet Paid
Leases
Leases of Lessee Disclosure [Text Block]
Leases
Leases of Lessor Disclosure [Text Block]
Financing Receivables
Financing Receivables [Text Block]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Services
Services [Member]
Services [Member]
Energy Holdings
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Subsidiaries
Subsidiaries [Member]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Pse And G
Power
PSEG
PSEG [Member]
PSEG [Member]
Minimum
Maximum
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current
Operating Lease, Liability, Current
Lease renewal term
Lessee, Operating Lease, Renewal Term
Number of lease renewal terms
Lessee, Operating Lease, Number Of Renewal Periods
Lessee, Operating Lease, Number Of Renewal Periods
Lease not yet commenced
Lessee, Operating Lease, Lease Not Yet Commenced
Lessee, Operating Lease, Lease Not Yet Commenced
Lessor leases carrying value
Other
Corporate and Other [Member]
Total Minimum Lease Payments
Lessee, Operating Lease, Liability, Payments, Due
Reconciling Amount due to Discount Rate
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total Discounted Operating Lease Liabilities
Operating Lease, Liability
Other Entity [Member]
Other Entity [Member]
Other Entity [Member]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax
Comprehensive Income (Loss) Note [Text Block]
Long-term Purchase Commitment [Table]
Long-term Purchase Commitment [Table]
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]
Nuclear Fuel Uranium [Member]
Nuclear Fuel [Member]
Nuclear Fuel Enrichment [Member]
Nuclear Fuel Enrichment [Member]
Nuclear Fuel Enrichment [Member]
Nuclear Fuel Fabrication [Member]
Nuclear Fuel Fabrication [Member]
Nuclear Fuel Fabrication [Member]
Natural Gas [Member]
Natural Gas [Member]
Coal [Member]
Coal [Member]
Long-term Purchase Commitment [Line Items]
Long-term Purchase Commitment [Line Items]
Coverage percentage of nuclear fuel commitments of uranium, enrichment, and fabrication requirements
Coverage Percentage Of Nuclear Fuel Commitments Of Uranium Enrichment And Fabrication Requirements
Coverage percentage of nuclear fuel commitments of uranium, enrichment, and fabrication requirements.
Total five-year minimum purchase requirements
Long-term Purchase Commitment, Amount
Lease, Cost
Lease, Cost [Table Text Block]
Lessee, Operating Lease, Liability, Maturity
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Schedule of Future Minimum Rental Payments for Operating Leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Operating Lease, Lease Income
Operating Lease, Lease Income [Table Text Block]
Lessor, Operating Lease, Payments to be Received, Maturity
Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]
Cumulative Effect of New Accounting Principle in Period of Adoption
Cumulative Effect of New Accounting Principle in Period of Adoption
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Beginning Balance
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Ending Balance
Net Change in Accumulated Other Comprehensive Income
Net Change in Accumulated Other Comprehensive Income
Net Change in Accumulated Other Comprehensive Income
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Corporate Debt Obligations [Member]
Other Debt Obligations [Member]
Government Debt Securities [Member]
US States and Political Subdivisions Debt Securities [Member]
International Equity Securities [Member]
International Equity Securities [Member]
International Equity Securities [Member]
Domestic Equity Securities [Member]
Domestic Equity Securities [Member]
Domestic Equity Securities [Member]
Type of Trust Investment [Axis]
Type of Trust Investment [Axis]
Type of Trust Investment [Axis]
Type of Trust Investment [Domain]
Type of Trust Investment [Domain]
[Domain] for Type of Trust Investment [Axis]
Equity Securities [Member]
Equity Securities [Member]
Total Debt Securities [Member]
Debt Securities Total [Member]
Debt Securities Total [Member]
Continuous Unrealized Loss Position, Less Than 12 Months, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Continuous Unrealized Loss Position, Less Than 12 Months, Gross Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Continuous Unrealized Loss Position, Greater Than 12 Months, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Continuous Unrealized Loss Position, Greater Than 12 Months, Gross Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Debt Securities [Member]
Debt Securities [Member]
After tax amount of net unrealized gains recognized in AOCI
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Number of Nuclear Facilities
Number of Nuclear Facilities
Number of Nuclear Facilities
Unrealized Gains (Losses) on Equity Securities still held
Unrealized Gains (Losses) on Equity Securities still held
Unrealized Gains (Losses) on Equity Securities still held
Other Income and Expenses [Abstract]
Schedule Of Other Income (Deductions)
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Financial Information By Business Segments
Segment Reporting Disclosure [Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Operating Revenues [Member]
Operating Revenues [Member]
Operating Revenues [Member]
Energy Costs [Member]
Energy Costs [Member]
Energy Costs [Member]
Asset Class [Axis]
Asset Class [Axis]
Fair Value by Asset Class [Domain]
Asset Class [Domain]
Net Derivative Assets (Liabilities) [Member]
Net Derivative Assets [Member]
Net Derivative Assets 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]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Opening Balance
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs
Included in Income
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings
Purchases, (Sales)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs, Purchases (Sales)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs, Purchases (Sales)
Issuances (Settlements)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs, Issuances (Settlements)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs, Issuances (Settlements)
Transfers In (Out)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net
Closing Balance
Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss)
Statement of Comprehensive Income [Abstract]
Unrealized Gains (Losses) on Available-for-Sale Securities, tax
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax
Unrealized Gains (Losses) on Cash Flow Hedges, Tax
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax
Pension/OPEB adjustment, tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
COMPREHENSIVE INCOME
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Subsequent Event [Member]
Subsequent Event [Member]
Powerton Station [Member]
Lease investment with non-investment grade counterparties, gross
Lease Investment With Non Investment Grade Counterparties Gross
Lease Investment With Non Investment Grade Counterparties Gross
Lease investment with non-investment grade counterparties, net of deferred taxes
Lease Investment With Non Investment Grade Counterparties Net Of Deferred Taxes
Lease Investment With Non Investment Grade Counterparties Net Of Deferred Taxes
Expected claim proceeds
Expected claim proceeds
Expected claim proceeds
REMA Funded credit support
REMA Funded credit support
REMA Funded credit support
Expected tax payment for REMA restructuring
Expected tax payment for REMA restructuring
Expected tax payment for REMA restructuring
Schedule Of Financial Statements Of Guarantors
Schedule Of Financial Statements Of Guarantors Table [Table Text Block]
Schedule Of Financial Statements Of Guarantors [Table Text Block]
Schedule of Changes in Accumulated Other Comprehensive Income by Component
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Reclassifications out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Various [Member]
Various [Member]
Various [Member]
Electric Load Contracts [Member]
Electric Load Deals [Member]
Electric Load Deals [Member]
Gas Physical Contract [Member]
Gas Physical Contract [Member]
Gas Physical Contract [Member]
Assets, Fair Value
Assets, Fair Value Disclosure
Liabilities, Fair Value
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Valuation Technique used
Valuation Technique used
Valuation Technique used
Significant Unobservable Inputs
Fair Value Measurement With Significant Unobservable Inputs
Fair value, measurement with significant unobservable inputs
Historic Load Variability
Historic Load Variability
Historic Load Variability
Average Historical Basis
Average Historical Basis
Average Historical Basis
Variable Rate [Domain]
Variable Rate [Domain]
Power - Recourse Debt [Member]
Power Recourse Debt [Member]
Power Recourse Debt [Member]
Floating Rate Term Loan
Long-Term Debt, Carrying Amount
Long-term Debt
Long-Term Debt, Fair Value
Long-term Debt, Fair Value
Derivative Instruments and Hedging Activities Disclosures [Table]
Derivative Instruments and Hedging Activities Disclosures [Table]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Schedule Of Derivative Instruments Fair Value In Balance Sheets
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
Schedule Of Derivative Instruments Not Designated As Hedging Instruments And Impact On Results Of Operations
Derivatives Not Designated as Hedging Instruments [Table Text Block]
Schedule Of Gross Volume, On Absolute Value Basis For Derivative Contracts
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Schedule Providing Credit Risk From Others, Net Of Collateral
Schedule Providing Credit Risk From Others Net Of Collateral [Table Text Block]
Schedule providing credit risk from others, net of collateral
Net Derivative Assets [Member]
Measurement Units [Axis]
Measurement Units [Axis]
Measurement Units [Axis]
Measurement Units [Domain]
Measurement Units [Domain]
Measurement Units [Domain]
Net assets measured at fair value on a recurring basis
Net Assets Measured At Fair Value On A Recurring Basis
Net Assets Measured At Fair Value On A Recurring Basis
Net assets measured at fair value on a recurring basis measured using unobservable input and as Level 3
Net Assets Measured At Fair Value On A Recurring Basis Measured Using Unobservable Input And Classified As Level3
Net Assets Measured At Fair Value On A Recurring Basis Measured Using Unobservable Input And Classified As Level3
Schedule Of Related Party Transactions, Revenue
Schedule Of Related Party Transactions Revenue Table [Table Text Block]
Schedule Of Related Party Transactions Revenue [Table Text Block]
Schedule Of Related Party Transactions, Receivables
Schedule Of Related Party Transactions Receivables Table [Table Text Block]
Schedule Of Related Party Transactions Receivables [Table Text Block]
Schedule Of Related Party Transactions, Payables
Schedule Of Related Party Transactions Payables Table [Table Text Block]
Schedule Of Related Party Transactions Payables [Table Text Block]
Accounting Policies [Abstract]
Recent Accounting Standards
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Statement of Stockholders' Equity [Abstract]
Common Stock [Member]
Common Stock [Member]
Treasury Stock [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent [Member]
Contributed Capital [Member]
Contributed Capital [Member]
Contributed Capital [Member]
Basis Adjustment [Member]
Basis Adjustment [Member]
Basis Adjustment [Member]
Shares, Outstanding
Shares, Outstanding
Cumulative Effect of New Accounting Principle in Period of Adoption
Other Comprehensive Income (Loss), Net of Tax
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Dividends, Common Stock, Cash
Dividends, Common Stock, Cash
Stockholders' Equity, Other
Stockholders' Equity, Other
Stockholders' Equity, Other Shares
Stockholders' Equity, Other Shares
Total Stockholder's Equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Interest Expense [Member]
Interest Expense [Member]
Interest Rate Swap [Member]
Interest Rate Swap [Member]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments
Unrealized Gain (Loss) on Cash Flow Hedging Instruments
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Energy-Related Contracts [Member]
Energy Related Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Pre-Tax Gain (Loss) Recognized in Income on Derivatives
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Receivable from PSE&G
Receivable from Affiliate Through BGS and BGSS Contracts
Receivable from Affiliate Through BGS and BGSS Contracts
Accounts Receivable - Affiliated Companies
Due from Affiliate, Current
Short-Term Loan to Affiliate
Notes Receivable, Related Parties, Current
Short-Term Loan (from) Affiliate
Notes Payable, Related Parties, Current
PSEG's, Power's And PSE&G's Respective Assets And (Liabilities) Measured At Fair Value On A Recurring Basis
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Schedule of Quantitative Information About Level 3 Fair Value Measurements
Quantitative Information about Level 3 Fair Value Measurements [Table Text Block]
[Table Text Block] for Quantitative Information about Level 3 Fair Value Measurements [Table]
Changes In Level 3 Assets And (Liabilities) Measured At Fair Value On A Recurring Basis
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Schedule of Fair Value of Debt
Schedule Of Fair Value Of Debt Table [Table Text Block]
Schedule of Fair Value of Debt
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Component of Other Income (Deductions) [Table]
Component of Other Income [Table]
Component of Other Income [Table]
Component of Other Income (Deductions) [Line Items]
Component of Other Income [Line Items]
[Line Items] for Component of Other Income [Table]
Other Income (Deductions)
Other Income and Other Expense Disclosure [Text Block]
Commitments and Contingent Liabilities
Commitments and Contingencies Disclosure [Text Block]
Lessor, Lease, Description [Table]
Lessor, Lease, Description [Table]
Lessor, Lease, Description [Line Items]
Lessor, Lease, Description [Line Items]
Operating Lease Income
Operating Leases, Income Statement, Lease Revenue [Abstract]
Fixed Lease Income
Operating Leases, Income Statement, Minimum Lease Revenue
Variable Lease Income
Operating Leases, Income Statement, Contingent Revenue
Total Operating Lease Income
Operating Leases, Income Statement, Lease Revenue
Income Tax Disclosure [Abstract]
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes
Income Tax Disclosure [Text Block]
Operating Lease Liabilities, Payments Due [Abstract]
Operating Lease Liabilities, Payments Due [Abstract]
2019
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year
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
Effective tax rate
Effective Income Tax Rate Reconciliation, Percent
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
CURRENT ASSETS
Assets, Current [Abstract]
Accounts Receivable, net of allowances
Accounts Receivable, Net, Current
Accounts Receivable-Affiliated Companies
Accounts Receivable, Related Parties, Current
Short-Term Loan to Affiliate
Tax Receivable
Income Taxes Receivable, Current
Unbilled Revenues
Unbilled Receivables, Current
Fuel
Fuel
Carrying amount as of the balance sheet date of fuel inventory to be used in the production of energy.
Materials and Supplies, net
Inventory, Raw Materials and Supplies, Gross
Prepayments
Prepaid Expense, Current
Derivative Contracts
Derivative Asset, Current
Regulatory Assets
Regulatory Assets, Current
Other
Other Assets, Current
Total Current Assets
Assets, Current
PROPERTY, PLANT AND EQUIPMENT
Public Utilities, Property, Plant and Equipment, Plant in Service
Less: Accumulated Depreciation and Amortization
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation
Net Property, Plant and Equipment
Public Utilities, Property, Plant and Equipment, Net
NONCURRENT ASSETS
Assets, Noncurrent [Abstract]
Regulatory Assets
Regulatory Assets, Noncurrent
Operating Lease, Right-of-Use Asset
Operating Lease, Right-of-Use Asset
Long-Term Investments
Long-term Investments
Nuclear Decommissioning Trust (NDT) Fund
Decommissioning Fund Investments
Long-Term Receivable of Variable Interest Entities (VIEs)
Accounts Receivable, Net, Noncurrent
Rabbi Trust Fund
Assets Held-in-trust, Noncurrent
Goodwill
Goodwill
Other Intangibles
Intangible Assets, Net (Excluding Goodwill)
Derivative Contracts
Derivative Asset, Noncurrent
Other
Other Assets, Noncurrent
Total Noncurrent Assets
Assets, Noncurrent
Total Assets
Assets
LIABILITIES AND CAPITALIZATION
Liabilities and Equity [Abstract]
CURRENT LIABILITIES
Liabilities, Current [Abstract]
Long-Term Debt Due Within One Year
Long-term Debt, Current Maturities
Commercial Paper and Loans
Accounts Payable
Accounts Payable, Current
Accounts Payable-Affiliated Companies
Accounts Payable, Related Parties, Current
Short-Term Loan from Affiliate
Derivative Contracts
Derivative Liability, Current
Accrued Interest
Interest Payable, Current
Accrued Taxes
Taxes Payable, Current
Clean Energy Program
Clean Energy Program Current
Carrying value on the balance sheet for obligations of less than one year for renewable energy and energy efficiency programs the company is obligated to participate.
Obligation to Return Cash Collateral
Customer Collateral Liabilities
Amounts of Cash Deposits Collected related to energy contract contractual obligations
Regulatory Liabilities
Regulatory Liability, Current
Other
Other Liabilities, Current
Total Current Liabilities
Liabilities, Current
NONCURRENT LIABILITIES
Liabilities, Noncurrent [Abstract]
Deferred Income Taxes and Investment Tax Credits (ITC)
Deferred Income Taxes and Other Tax Liabilities, Noncurrent
Regulatory Liabilities
Regulatory Liability, Noncurrent
Operating Leases
Operating Lease, Liability, Noncurrent
Asset Retirement Obligations
Asset Retirement Obligations, Noncurrent
OPEB Costs
Liability, Other Postretirement Defined Benefit Plan, Noncurrent
OPEB Costs of Servco
Liability, Other Retirement Benefits, Noncurrent
Accrued Pension Costs
Liability, Defined Benefit Pension Plan, Noncurrent
Accrued Pension Costs of Servco
Liability, Defined Benefit Plan, Noncurrent
Environmental Costs
Accrued Environmental Loss Contingencies, Noncurrent
Derivative Contracts
Derivative Liability, Noncurrent
Long-Term Accrued Taxes
Liability for Uncertainty in Income Taxes, Noncurrent
Other
Other Liabilities, Noncurrent
Total Noncurrent Liabilities
Liabilities, Noncurrent
COMMITMENTS AND CONTINGENT LIABILITIES
Commitments and Contingencies
LONG-TERM DEBT
Long-term Debt, Excluding Current Maturities [Abstract]
Total Long-Term Debt
Long-term Debt, Excluding Current Maturities
STOCKHOLDER'S EQUITY
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common Stock, Value, Issued
Common Stock, Value, Issued
Treasury Stock, at cost
Treasury Stock, Value
Contributed Capital
Contributed Capital
Contributed Capital
Basis Adjustment
Basis Adjustment
Basis Adjustment
Retained Earnings
Retained Earnings (Accumulated Deficit)
Accumulated Other Comprehensive Income (Loss)
Total Capitalization
Capitalization, Long-term Debt and Equity
TOTAL LIABILITIES AND CAPITALIZATION
Liabilities and Equity
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]
Revenue from Contract with Customer [Text Block]
Financial Information By Business Segments
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Long Island ServCo [Member]
Long Island ServCo [Member]
Long Island ServCo [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Operating Revenues
Revenues
Operation and Maintenance
Utilities Operating Expense, Maintenance and Operations
Auction Year 2016 [Member]
Auction Year 2016 [Member]
Auction Year 2016 [Member]
Auction Year 2017 [Member]
Auction Year 2017 [Member]
Auction Year 2017 [Member]
Auction Year 2018 [Member]
Auction Year 2018 [Member]
Auction Year 2018 [Member]
Auction Year 2019 [Member]
Auction Year 2019 [Member]
Auction Year 2019 [Member]
Dollars Per Megawatt-Day
Dollars Per Megawatt-Day
Dollars Per Megawatt-Day
36-Month Terms Ending
Long-term Contract for Purchase of Electric Power, Date of Contract Expiration
Load (MW)
Load Megawatt
Load Megawatt
Dollars Per Megawatt Hour
Dollars Per Megawatt Hour
Dollars Per Megawatt Hour
Number of cubic feet in gas hedging permitted to be recovered by BPU
Number Of Cubic Feet In Gas Hedging Permitted To Be Recovered By Bpu
Number of cubic feet in gas hedging permitted to be recovered by BPU.
Percentage of residential gas supply permitted to be recovered in gas hedging by BPU
Percentage Of Residential Gas Supply Permitted To Be Recovered In Gas Hedging By Bpu
Percentage of residential gas supply permitted to be recovered in gas hedging by BPU.
Number of cubic feet to be hedged
Number Of Cubic Feet To Be Hedged
Number of cubic feet to be hedged
Percentage of annual residential gas supply requirements to be hedged
Percentage Of Annual Residential Gas Supply Requirements To Be Hedged
Percentage of annual residential gas supply requirements to be hedged
Revenue Recognition, Policy [Policy Text Block]
Revenue Recognition, Policy [Policy Text Block]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Guarantee Party [Axis]
Guarantee Party [Axis]
Guarantee Party [Axis]
Guarantee Party [Domain]
Guarantee Party [Domain]
Guarantee Party [Domain]
Power Parent [Member]
Power Parent [Member]
Power Parent [Member]
Power Senior Notes [Member]
Power Senior Notes [Member]
Power Senior Notes [Member]
Guarantor Subsidiaries [Member]
Guarantor Subsidiaries [Member]
Non-Guarantor Subsidiaries [Member]
Non-Guarantor Subsidiaries [Member]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Consolidating Adjustments [Member]
Consolidation, Eliminations [Member]
Operating Expenses
Operating Expenses
Operating Income (Loss)
Operating Income (Loss)
Equity Earnings (Losses) of Subsidiaries
Income (Loss) from Equity Method Investments
Other Income (Deductions)
Other Nonoperating Income (Expense)
Non-Operating Pension and OPEB Credits (Costs)
Interest Expense
Interest Expense
Income Tax Benefit (Expense)
Income Tax Expense (Benefit)
Net Income
Comprehensive Income (Loss)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Net Cash Provided By (Used In) Operating Activities
Net Cash Provided By (Used In) Investing Activities
Net Cash Provided By (Used In) Financing Activities
Current Assets
Property, Plant and Equipment, net
Investment in Subsidiaries
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Noncurrent Assets
Current Liabilities
Noncurrent Liabilities
Long-Term Debt
Member's Equity
Operating Lease Costs
Lease, Cost [Abstract]
Long-term Lease Costs
Operating Lease, Cost
Short-term Lease Costs
Short-term Lease, Cost
Variable Lease Costs
Variable Lease, Cost
Total Operating Lease Costs
Lease, Cost
Cash Paid for Amounts Included in the Measurement of Operating Lease Liabilities
Operating Lease, Payments
Weighted Average Remaining Lease Term in Years
Operating Lease, Weighted Average Remaining Lease Term
Weighted Average Discount Rate
Operating Lease, Weighted Average Discount Rate, Percent
Operating Segments [Member]
Operating Segments [Member]
Eliminations [Member]
Intersegment Eliminations [Member]
Other [Member]
Net Income
Property, Plant and Equipment, Additions
Property, Plant and Equipment, Additions
Total Assets
Investments in Equity Method Subsidiaries
Segment Reporting Investments In Equity Method Subsidiaries
Segment Reporting Investments In Equity Method Subsidiaries
Rate Filings [Abstract]
Rate Filings [Abstract]
Schedule of Regulatory Assets [Table]
Schedule of Regulatory Assets [Table]
Regulatory Assets [Line Items]
Regulatory Assets [Line Items]
Rate Filings
Public Utilities Disclosure [Text Block]
Pre-Tax Balance at Beginning of Period
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Pre Tax
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Pre Tax
Gain (Loss) in AOCI
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax
(Gain) Loss into Income
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax
Pre-Tax Balance at End of Period
After-Tax Balance at Beginning of Period
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect After Tax
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect After Tax
Gain (Loss) in AOCI
(Gain) Loss into Income
After-Tax Balance at End of Period
Disaggregation of Revenue [Table Text Block]
Disaggregation of Revenue [Table Text Block]
Revenue, Capacity Auction Obligations [Table Text Block]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Components Of Net Periodic Benefit Cost
Schedule of Net Benefit Costs [Table Text Block]
Schedule Of Pension And OPEB Costs
Schedule Of Pension And Opeb Costs [Table Text Block]
Schedule Of Pension And OPEB Costs [Text Block]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Weighted Average Common Shares Outstanding, Basic (shares)
Weighted Average Common Shares Outstanding Before Various Effects Basic
Weighted Average Common Shares Outstanding Before Various Effects, Basic
Effect of Stock Based Compensation Awards, Basic (shares)
Incremental Common Shares Attributable To Share Based Payment Arrangements Basic
Incremental Common Shares Attributable To Share Based Payment Arrangements Basic
Total Shares, Basic (shares)
Weighted Average Number of Shares Outstanding, Basic
Net Income, Basic (dollars per share)
Earnings Per Share, Basic
Weighted Average Common Shares Outstanding, Diluted (shares)
Weighted Average Common Shares Outstanding Before Various Effects Diluted
Weighted Average Common Shares Outstanding Before Various Effects, Diluted
Effect of Stock Based Compensation Awards, Diluted (shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Total Shares, Diluted (shares)
Weighted Average Number of Shares Outstanding, Diluted
Net Income, Diluted (dollars per share)
Earnings Per Share, Diluted
Concentration Risk [Table]
Concentration Risk [Table]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Commercial/Industrial [Member]
Commercial Industrial Concentration Credit Risk [Member]
Commercial/Industrial Concentration Credit Risk [Member]
Residential [Member]
Residential Concentration Credit Risk [Member]
Residential [Member]
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Outstanding Loans by Class of Customer
Financing Receivable, Gross
Current Portion of Outstanding Loans
Notes, Loans and Financing Receivable, Gross, Current
Noncurrent Portion of Outstanding Loans
Notes, Loans and Financing Receivable, Gross, Noncurrent
Other Comprehensive Income (Loss), Tax
Other Comprehensive Income (Loss), Tax
Common Stock, Dividends, Per Share, Cash Paid
Common Stock, Dividends, Per Share, Cash Paid
Less than one year
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value
1 - 5 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value
6 - 10 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value
11 - 15 years
Available For Sale Securities Debt Maturities After Ten Through Fifteen Years Fair Value
Available For Sale Securities Debt Maturities After Ten Through Fifteen Years Fair Value
16 - 20 years
Available For Sale Securities Debt Maturities After Fifteen Through Twenty Years Fair Value
Available For Sale Securities Debt Maturities After Fifteen Through Twenty Years Fair Value
Over 20 years
Available For Sale Securities Debt Maturities After Twenty Years Fair Value
Available For Sale Securities Debt Maturities After Twenty Years Fair Value
Total Available-for-Sale Debt Securities
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value
Related-Party Transactions
Related Party Transactions Disclosure [Text Block]
Net Billings to PSE&G primarily through BGS and BGSS
Revenue from Related Parties
Net Billings from Power primarily through BGS and BGSS
Costs and Expenses, Related Party
Administrative Billings from Services
Billings From Administrative Shared Service Company Affiliated
Aggregate billings from affiliated entities earned during the period from providing administrative services to investment managers or funds seeking to outsource all or part of their mutual fund service functions. Examples of such administrative or support services include the following: legal advice, centralized cash management, filing of reports with the SEC and the IRS, registering of fund shares, corresponding with shareholders, and determination of compliance with various restrictions. An affiliate is a party that, directly or indirectly through one or more intermediaries, controls, is controlled by, or is under common control with the entity.
Total Billings from Affiliates
Affiliate Costs
Revenues [Table]
Disaggregation of Revenue [Table]
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
LIPA OSA contract fixed component [Member]
LIPA OSA contract fixed component [Member]
LIPA OSA contract fixed component [Member]
Electric Distribution Contracts [Member]
Electric Distribution Contracts [Member]
Electric Distribution Contracts [Member]
Gas Distribution [Member]
Gas Distribution Contracts [Member]
Gas Distribution Contracts [Member]
Electric Transmission [Member]
Transmission [Member]
Transmission [Member]
Electricity and Related Products [Member]
Electricity and Related Products [Member]
Electricity and Related Products [Member]
Gas Sales [Member]
Other Revenues from Contracts with Customers [Member]
Other Contract Revenues [Member]
Other Contract Revenues [Member]
LIPA OSA contract incentive component [Member]
LIPA OSA contract incentive component [Member]
LIPA OSA contract incentive component [Member]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
PJM [Member]
PJM [Member]
PJM [Member]
NY ISO [Member]
NY ISO [Member]
NY ISO [Member]
ISO New England [Member]
ISO New England [Member]
ISO New England [Member]
Contract with Customer, Duration [Axis]
Contract with Customer, Duration [Axis]
Contract with Customer, Duration [Domain]
Contract with Customer, Duration [Domain]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Domain]
Timing of Transfer of Good or Service [Domain]
June 2018 to May 2019 [Member]
June 2018 to May 2019 [Member]
June 2018 to May 2019 [Member]
June 2019 to May 2020 [Member]
June 2019 to May 2020 [Member]
June 2019 to May 2020 [Member]
June 2020 to May 2021 [Member]
June 2020 to May 2021 [Member]
June 2020 to May 2021 [Member]
June 2021 to May 2022 [Member]
June 2021 to May 2022 [Member]
June 2021 to May 2022 [Member]
June 2022 to May 2023 [Member]
June 2022 to May 2023 [Member]
June 2022 to May 2023 [Member]
June 2023 to May 2024 [Member]
June 2023 to May 2024 [Member]
June 2023 to May 2024 [Member]
June 2024 to May 2025 [Member]
June 2024 to May 2025 [Member]
June 2024 to May 2025 [Member]
June 2025 to May 2026 [Member]
June 2025 to May 2026 [Member]
June 2025 to May 2026 [Member]
Customer [Axis]
Customer [Axis]
Customer [Domain]
Customer [Domain]
Third Party Sales [Member]
Third Party Sales [Member]
Third Party Sales [Member]
Sales to Affiliates [Member]
Affiliated Entity [Member]
Revenues [Line Items]
Disaggregation of Revenue [Line Items]
Allowances percentage of accounts receivable
Allowances percentage of accounts receivable
Allowances percentage of accounts receivable
Revenue from Contract with Customers
Revenue from Contract with Customer, Including Assessed Tax
Revenues Unrelated to Contracts with Customers
Revenues Unrelated to Contracts with Customers
Revenues Unrelated to Contracts with Customers
Total Operating Revenues
Anticipated Contract Revenues
Revenue, Remaining Performance Obligation, Amount
Early Plant Retirements
Restructuring, Impairment, and Other Activities Disclosure [Text Block]
Commitments and Contingent Liabilities (Litigation) [Abstract]
Commitments and Contingent Liabilities (Litigation) [Abstract]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Sewaren 7 Litigation [Member]
Sewaren 7 Claim [Member]
Sewaren 7 Claim [Member]
Sewaren 7 Construction complaint amount
Accounts Receivable, allowances
Allowance for Doubtful Accounts Receivable, Current
Common Stock, issued
Common Stock, Shares, Issued
Common Stock, outstanding
Common Stock, Shares, Outstanding
Common Stock, authorized
Common Stock, Shares Authorized
Treasury Stock, Shares
Treasury Stock, Shares
Regulatory Assets And Liabilities [Table]
Regulatory Assets And Liabilities [Table]
Regulatory Assets And Liabilities [Table]
Winter Period [Axis]
Winter Period [Axis]
Winter Period [Axis]
Winter Period [Domain]
Winter Period [Domain]
[Domain] for Winter Period [Axis]
2016 to 2017 [Member]
2016 to 2017 [Member]
2016 to 2017 [Member]
2017 to 2018 [Member]
2017 to 2018 [Member]
2017 to 2018 [Member]
Rate Type [Axis]
Rate Type [Axis]
Rate Type [Axis]
Rate Type [Domain]
Rate Type [Domain]
[Domain] for Rate Type [Axis]
Gas Weather Normalization Deferral [Member]
Gas Weather Normalization Deferral [Member]
Gas Weather Normalization Deferral [Member]
Gas System Modernization Program [Member]
Gas System Modernization Program [Member]
Gas System Modernization Program [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount
Public Utilities, Approved Rate Increase (Decrease), Amount
Public Utilities, Requested Rate Increase (Decrease), Amount
Public Utilities, Requested Rate Increase (Decrease), Amount
Guarantees of Debt
Financial Statements Of Guarantors [Text Block]
Financial information provided for subsidiary guarantors of Parent debt per rule 3-10 of Reg S-X.
NDT Fund Interest and Dividends
Investment Income, Interest and Dividend
Allowance for Funds Used During Construction
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
Solar Loan Interest
Solar Loan Interest
Solar loan interest
Other
Other Nonoperating Income Other
Other nonoperating income, other
Other Income (Deductions)
Dividend Payments on Common Stock
Common Stock, Dividends, Per Share, Declared
Common Stock, Dividends, Per Share, Declared
Rabbi Trusts Debt Securities Other [Member]
Rabbi Trusts Debt Securities Other [Member]
Rabbi Trusts Debt Securities Other [Member]
Rabbi Trusts Debt Securities Government Obligations [Member]
Rabbi Trusts Debt Securities Government Obligations [Member]
Rabbi Trusts Debt Securities Government Obligations [Member]
Rabbi Trusts US Treasury Obligations [Member]
Rabbi Trusts US Treasury Obligations [Member]
Rabbi Trusts US Treasury Obligations [Member]
Rabbi Trusts Equity Securities Mutual Funds [Member]
Rabbi Trusts Equity Securities Mutual Funds [Member]
Rabbi Trusts Equity Securities Mutual Funds [Member]
US Treasury Securities [Member]
US Treasury Securities [Member]
Cash and Cash Equivalents [Member]
Cash and Cash Equivalents [Member]
Assets [Member]
Assets [Member]
Other Liabilities [Member]
Other Liabilities [Member]
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]
Total Estimate Of Fair Value [Member]
Estimate of Fair Value Measurement [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Quoted Market Prices of Identical Assets (Level 1) [Member]
Fair Value, Inputs, Level 1 [Member]
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Inputs, Level 2 [Member]
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Inputs, Level 3 [Member]
Collateral Already Posted, Aggregate Fair Value
Collateral Already Posted, Aggregate Fair Value
Cash Equivalents, Fair Value Disclosure
Cash and Cash Equivalents, Fair Value Disclosure
Total Mark-to-Market Derivative Assets
Derivative Asset
Total Mark-to-Market Derivative (Liabilities)
Derivative Liability
Fair Value, Measured on Recurring Basis, Investments
Investments, Fair Value Disclosure
Collateral netted against assets and liabilities
Pension and Other Postretirement Benefits (OPEB)
Pension and Other Postretirement Benefits Disclosure [Text Block]
Accounts Receivable
Accounts Receivable, Net
Accounts Payable
Accounts Payable
Equity Securities, Cost
Equity Securities, FV-NI, Cost
Equity Securities, Accumulated Gross Unrealized Gain
Equity Securities, FV-NI, Unrealized Gain
Equity Securities, Accumulated Gross Unrealized Loss
Equity Securities, FV-NI, Unrealized Loss
Equity Securities, Fair Value
Equity Securities, FV-NI
Debt Securities, Available-for-sale, Amortized Cost
Debt Securities, Available-for-sale, Amortized Cost
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Debt Securities, Available-for-Sale, Fair Value
Debt Securities, Available-for-sale
Trust Investments, Cost
Available-for-sale Securities, Amortized Cost Basis
Gross Unrealized Gains
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax
Gross Unrealized Losses
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax
Trust Investments, Fair Value
Available-for-sale Securities
Lease Receivables (net of Non-Recourse Debt)
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Rental Receivables, Net
Estimated Residual Value of Leased Assets
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Residual Value of Leased Assets
Total Investment in Rental Receivables
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Rental Receivables, Gross
Unearned and Deferred Income
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Deferred Income
Gross Investments in Leases
Leveraged Leases Gross Investment
Leveraged Leases Gross Investment
Deferred Tax Liabilities
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Deferred Taxes Arising from Leveraged Leases
Net Investments in Leases
Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Investment in Leveraged Leases, Net
Trust Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year
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 Minimum Lease Payments
Operating Leases, Future Minimum Payments Due
New Accounting Standards
New Accounting Pronouncements, Policy [Policy Text Block]
Financial Risk Management Activities
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Schedule Of Effective Tax Rates
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Total Rabbi Trust Investments
Variable Interest Entities (VIEs)
Variable Interest Entity Disclosure [Text Block]
Effective Income Tax Rate, Federal and State Statutory Income Tax Rate, Percent
Effective Income Tax Rate, Federal and State Statutory Income Tax Rate, Percent
Effective Income Tax Rate, Federal and State Statutory Income Tax Rate, Percent
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
NJ surcharge tax percent for 2018 to 2019
NJ surcharge tax percent for 2018 to 2019
NJ surcharge tax percent for 2018 to 2019
NJ tax surcharge percent for 2020 to 2021
NJ tax surcharge percent for 2020 to 2021
NJ tax surcharge percent for 2020 to 2021
Face Value Of Outstanding Guarantees, Current Exposure And Margin Positions
Schedule of Guarantor Obligations [Table Text Block]
Contract For Anticipated BGS-Fixed Price Eligible Load
Schedule of Long-term Contracts for Purchase of Electric Power [Table Text Block]
Total Minimum Purchase Commitments
Long-term Purchase Commitment [Table Text Block]
Income Statement [Abstract]
Operating Expenses [Abstract]
Operating Expenses [Abstract]
Energy Costs
Cost of Goods and Services Sold
Depreciation and Amortization
Cost, Depreciation and Amortization
Total Operating Expenses
OPERATING INCOME
Income from Equity Method Investments
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
BASIC (shares)
DILUTED (shares)
EARNINGS PER SHARE:
BASIC (dollars per share)
DILUTED (dollars per share)
Earnings Per Share (EPS) and Dividends
Earnings Per Share [Text Block]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Cash, Cash Equivalents and Restricted Cash, Policy [Policy Text Block]
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Natural Gas Dth [Member]
Natural Gas Dth [Member]
Natural Gas Dth [Member]
Electricity MWh [Member]
Electricity Mwh [Member]
Electricity MWh [Member]
FTRs MWh [Member]
Ftrs Mwh [Member]
FTRs MWh [Member]
Gross Volume of Derivative on Absolute Value Basis
Credit Rating, Standard & Poor's [Axis]
Credit Rating, Standard & Poor's [Axis]
External Credit Rating, Standard & Poor's [Domain]
External Credit Rating, Standard & Poor's [Domain]
Standard & Poor's, AA Rating [Member]
Standard & Poor's, AA Rating [Member]
Standard & Poor's, A- Rating [Member]
Standard & Poor's, A- Rating [Member]
Standard & Poor's, BBB plus - BBB - Rating [Member]
Standard & Poor's, BBB Rating [Member]
Standard & Poor's, BB Rating [Member]
Standard & Poor's, BB Rating [Member]
Not Rated [Member]
Not Rated [Member]
Not Rated [Member]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Derivative Instrument Risk [Axis]
Other Noncurrent Liabilities [Member]
Other Noncurrent Liabilities [Member]
Other Current Liabilities [Member]
Other Current Liabilities [Member]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Not Designated as Hedging Instrument [Member]
Not Designated as Hedging Instrument [Member]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Fair Value Hedging [Member]
Fair Value Hedging [Member]
Derivative Contracts, Current Assets
Derivative Contracts, Noncurrent Assets
Total Mark-to-Market Derivative Assets
Derivative Contracts, Current Liabilities
Derivative Contracts, Noncurrent Liabilities
Total Mark-to-Market Derivative (Liabilities)
Net Mark-to-Market Derivative Assets (Liabilities)
Derivative, Fair Value, Net
Debt and Credit Facilities [Abstract]
Debt and Credit Facilities [Abstract]
Schedule of Line of Credit Facilities [Table Text Block]
Schedule of Line of Credit Facilities [Table Text Block]
Cash, Cash Equivalents and Restricted Cash [Table Text Block]
Restrictions on Cash and Cash Equivalents [Table Text Block]