75000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 75010 - Statement - Statements of Net Assets Available For Benefits link:presentationLink link:calculationLink link:definitionLink 75020 - Statement - Statement of Changes in Net Assets Available for Benefits link:presentationLink link:calculationLink link:definitionLink 75030 - Disclosure - Description of the Plan link:presentationLink link:calculationLink link:definitionLink 75040 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 75050 - Disclosure - INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED EMPLOYEE SAVINGS PLAN (SAVINGS PLAN) IN THE MASTER TRUST link:presentationLink link:calculationLink link:definitionLink 75060 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 75070 - Disclosure - Tax Status link:presentationLink link:calculationLink link:definitionLink 75080 - Disclosure - Related-Party and Party-In- Interest Transactions link:presentationLink link:calculationLink link:definitionLink 75090 - Disclosure - Plan Termination link:presentationLink link:calculationLink link:definitionLink 75100 - Disclosure - Reconciliation of Financial Statements to Form 5500 link:presentationLink link:calculationLink link:definitionLink 75110 - Disclosure - Schedule of Assets link:presentationLink link:calculationLink link:definitionLink 75120 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 75130 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust (Tables) link:presentationLink link:calculationLink link:definitionLink 75140 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 75150 - Disclosure - Reconciliation of Financial Statements to Form 5500 (Tables) link:presentationLink link:calculationLink link:definitionLink 75160 - Disclosure - Schedule of Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 75170 - Disclosure - Description of the Plan - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75180 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust - Schedule of Assets, Investment Income and Interests in Assets of Master Trust (Details) link:presentationLink link:calculationLink link:definitionLink 75190 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust (Details) link:presentationLink link:calculationLink link:definitionLink 75200 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust - Schedule of Changes in Net Assets of Master Trust (Details) link:presentationLink link:calculationLink link:definitionLink 75210 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75220 - Disclosure - Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust - Schedule of Stable Value Fund (Details) link:presentationLink link:calculationLink link:definitionLink 75230 - Disclosure - Fair Value Measurements - Summary of Master Trust's Investments Measured at Fair Value on A Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 75240 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75250 - Disclosure - Tax Status - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75260 - Disclosure - Related-Party and Party-In- Interest Transactions - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75270 - Disclosure - Reconciliation of Financial Statements to Form 5500 (Details) link:presentationLink link:calculationLink link:definitionLink 75280 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75290 - Disclosure - Schedule of Assets - Schedule of Assets Held at End of Year (Details) link:presentationLink link:calculationLink link:definitionLink Fixed Income Funds [Member] Fixed Income Securities Investment, Issuer Name [Axis] Benefit Payments to Participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Employee benefit plan, maximum age deferred deposits withdrawn Employee Benefit Plan Maximum Age Deferred Deposits Withdrawn Employee benefit plan maximum age deferred deposits withdrawn. EBP, Master Trust [Table Text Block] Schedule of Master Trust investments EBP, Receivable [Abstract] Receivable: Level 2 Fair Value, Inputs, Level 2 [Member] Employer Matching Contribution Participant Period Employer matching contribution participant period. Employer matching contribution participant period EBP, Related Party and Party-in-Interest Transactions [Line Items] Document Fiscal Period Focus EBP, Master Trust [Line Items] EBP, Investment, Contract Value EBP, Investment, Contract Value, Total Investment contracts (Stable Value Fund) Investment Income of Master Trust, Interest from Investment Contracts Transfers of the Frozen ESOP Fund EBP, Transfers of the Frozen ESOP Fund [Policy Text Block] EBP, Transfers of the Frozen ESOP Fund [Policy Text Block] EBP, Tax Status [Abstract] EBP, Description of Plan [Text Block] Description of the Plan EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest on Notes Receivable from Participants EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative Expenses EBP, Description of Plan [Line Items] EBP, Change in Net Asset Available for Benefit, Transfer to (from) Fund within ESOP Transfers from Public Service Enterprise Group Incorporated Employee Savings Plan - Net Employee Benefit Plan Participant Contribution Annual Compensation Amount for First Five Year of Service Employee benefit plan participant contribution annual compensation amount for first five year of service. Employee benefit plan, annual contribution amount for first five year EBP, Master Trust [Abstract] EBP, Employer Contribution, Matching Percentage Employee benefit plan, percentage of contribution matching EBP, Liability [Abstract] LIABILITIES EBP, Accounting Policy [Line Items] Net Transfers EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Change in Plan Interest in Master Trust Net Transfers Change in Plan Interest in Master Employee Benefit Plan Trust Net Transfers Employee Benefit Plan Note Receivable From Participant Account Highest Outstanding Loan Balance Employee benefit plan note receivable from participant account highest outstanding loan balance. Employee benefit plan, minimum participant's highest outstanding loan balance RGA RGA [Member] RGA. EBP, Master Trust [Table] EBP, Change in Net Asset Available for Benefit, Decrease from Investment Expense Administrative Expenses Administrative Expenses EBP, Schedule of Asset Held for Investment [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Employee benefit plan, note receivable from participant, maximum borrowing, amount EBP, Nonemployer, Common Stock [Member] Common Stock of Public Service Enterprise Group Incorporated Common Collective Trust [Member] Collective Investment Trusts Amendment Flag EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash, Total Employer EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] DEDUCTIONS EBP, Form 5500 Caption, Total Administrative Expenses Administrative expenses EBP, Payment to Participant [Policy Text Block] Payment of Benefits EBP, Schedule of Asset Held for Investment [Line Items] Fair Value Hierarchy and NAV [Axis] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] Employee Benefit Plan Average Yield On Interest Rate Credited To Participants Employee benefit plan average yield on interest rate credited to participants. Average yield on interest rate credited to participants Investment Type [Axis] EBP, Investment, Fair Value Investments of Master Trust at fair value Total Investment Total Investment in Master Trust, at fair value Document Type Employee Benefit Plan Schedule of Asset Held for Investment [Text Block] Employee benefit plan schedule of asset held for investment. Schedule of Assets Entity Central Index Key EBP, Investment [Policy Text Block] Investment Valuation and Income Recognition EBP, Accounting Policy [Table] EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Investment, Plan Interest in Master Trust, Fair Value Plan Interest in Master Employee Benefit Plan Trust Plan's interest in gains of the Master Trust Employee Benefit Plan Participant Contribution Annual Compensation Amount for After Five Year of Service Employee benefit plan participant contribution annual compensation amount for after five year of service. Employee benefit plan, annual contribution amount for after five year Employee Benefit Plan Vesting Percentage Employee Benefit Plan Vesting Percentage. Employee benefit plan vesting percentage EBP, Description of Plan [Table] EBP, Employer, Common Stock [Member] Common Stock of Public Service Enterprise Group Incorporated EBP, Investment, Excluding Plan Interest in Master Trust, Cost Participant loans, cost EBP, Investment, Fair Value [Abstract] Investment: EBP, Form 5500 Caption, Net Assets Net assets available for benefits per Form 5500 Investment, Issuer Name [Domain] EBP, Investment, Number of Shares Shares held in master trust Minimum [Member] Minimum EBP, Related Party and Party-in-Interest Transactions [Text Block] Related-Party and Party-in- Interest Transactions Transamerica Transamerica [Member] Transamerica. Fair Value, Inputs, Level 3 [Member] Level 3 Employee Benefit Plan Participant Account Termination Amount Employee benefit plan participant account termination amount. Employee benefit plan, participant account termination amount EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total Deposits and Contributions Total Deposits and Contributions Prudential Ins Co. [Member] Prudential Ins Co. Prudential Ins Co. EBP, Investment, Level 3 Reconciliation, Increase (Decrease) from Transfer into or Out of Level 3 EBP, Investment, Level 3 Reconciliation, Increase (Decrease) from Transfer into or Out of Level 3 Employee Benefit Plan Percentage Of Amount Transfer Of Participant Employee benefit plan percentage of amount transfer of participant. Percentage of amount transfer of participant EBP, Expense [Policy Text Block] Administrative Expenses of the Plan Employee Benefit Plan Net Investment Gain from Master Trust Investments Employee benefit plan net investment gain from master trust investments Net investment gain from master trust investments Document Information [Line Items] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participants EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Deposits and Contributions EBP, Tax Determination Letter, Date Tax determination letter, date EBP, Participant Contribution, Automatic, Deferral Rate Employee benefit plan, automatic enrolled deferral rate EBP, Tax Qualification Status [Extensible Enumeration] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Use of Estimate [Policy Text Block] Use of Estimates Voya Retirement & Annuity Co. [Member] Voya Retirement & Annuity Co. Voya Retirement & Annuity Co. Employee Benefit Plan Participant Contribution Automatic Deferral Rate Compensation Period Employee benefit plan participant contribution automatic deferral rate compensation period. Employee benefit plan, automatic enrolled deferral rate compensation period Mutual Fund [Member] Mutual Funds Entity [Domain] EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policy Employee Benefit Plan Change In Net Assets Available For Benefit Increase Employee benefit plan change in net assets available for benefit increase. Total Additions Total Additions EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurements Employee Benefit Plan Change In Net Assets Available For Benefit Increase Decrease Prior To Tansfers Employee benefit plan change in net assets available for benefit increase decrease prior to tansfers. INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS, PRIOR TO TRANSFERS INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS, PRIOR TO TRANSFERS Pacific Life Insurance [Member] Pacific Life Insurance. Pacific Life Insurance EBP, Description of Plan and Accounting Change [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Classification Differences Between the Financial Statements and Form 5500 Participant loans EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statistical Measurement [Domain] EBP, Note Receivable from Participant Notes Receivable from Participants Document Period End Date Fair Value Hierarchy and NAV [Domain] Mutual Funds, Collective Investment Trusts, Fixed Income And Preferred Securities [Member] Mutual Funds, Collective Investment Trusts, Fixed Income and Preferred Securities. Mutual Funds, Collective Investment Trusts, Fixed Income and Preferred Securities EBP, Risk and Uncertainty [Policy Text Block] Risks and Uncertainties EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Employee benefit plan, note receivable from participant, account, maximum borrowing, to total account, percentage EBP, Tax Determination Letter, Obtained [true false] Tax determination letter, obtained EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Plan Termination [Text Block] Plan Termination Employee Benefit Plan Increase (Decrease) In Fund's Fair Value and Contract Value Employee benefit plan increase (decrease) in fund's fair value and contract value. Decrease in fund's fair value and contract value EBP, Subsequent Event [Policy Text Block] Subsequent Events BlackRock Financial Management [Member] BlackRock Financial Management. BlackRock Financial Mgmt EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment Interest from Investment Contracts EBP, Participant Contribution, Pretax, Maximum Annual Compensation, Amount Employee benefit plan, annual contribution Investment Contract [Member] Investment contract. Investment Contracts Cover [Abstract] EBP, Net Asset Value per Share or Unit Market value per share Investments [Domain] Changes in Net Assets: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Net Investment Income EBP, Master Trust [Text Block] Investment of the Plan and the Public Service Enterprise Group Incorporated Employee Savings Plan (Savings Plan) in the Master Trust EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Unrealized Gain (Loss) on Investment Investment Income of Master Trust, Net Appreciation in Fair Value Net Appreciation of Investments NET ASSETS AVAILABLE FOR BENEFITS Beginning of Year End of Year Net assets available for benefits per the financial statements Net Assets Available for Benefit EBP, Investment, Fair Value and NAV [Table Text Block] Summary of Master Trust's Investments Measured at Fair Value on A Recurring Basis EBP, Net Asset Available for Benefit [Abstract] Net Assets: EBP, Schedule of Asset Held for Investment [Abstract] Net Accounts Payable EBP, Excess Contribution Payable Net Accounts Payable Employee Benefit Plan Interest Gains Of The Master Trust Employee benefit plan interest gains of the master trust Plan's interest in gains of the Master Trust EBP, Schedule of Asset Held for Investment [Table Text Block] Schedule of Assets Held at End of Year Employee Benefit Plan Net Accounts Payable Employee benefit plan net accounts payable. Net Accounts Payable Net Accounts Payable EBP, Statement of Net Asset Available for Benefit [Table] Document Fiscal Year Focus EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment, Total Investment Gains Investment Income of Master Trust, Net Appreciation in Fair Value EBP, Nonconsolidated, Master Trust [Member] Master Trust at Fair Value Master Trust Fidelity Brokerage Link [Member] Fidelity Brokerage Link Fidelity Brokerage Link EBP, Statement of Change in Net Asset Available for Benefit [Table] Met Tower Life [Member] Met Tower Life. Met Tower Life EBP, Asset Total Assets EBP, Contribution [Policy Text Block] Contributions Employee benefit plan, annual contribution period Employee Benefit Plan Participant Contribution Maximum Annual Compensation Period Employee benefit plan participant contribution maximum annual compensation period. EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contract Value to Current Value Adjustment Adjustment from contract value to fair value for fully benefit-responsive investment contracts EBP, Plan Number Employee benefit plan, plan number Plan Interest in Master Employee Benefit Plan Trust EBP, Nonconsolidated, Plan Interest in Master Trust [Member] EBP, Investment, Fair Value and NAV [Line Items] Document Information [Table] Employee Benefit Plan Adjustment From Fair Value To Contract Value For Fully Benefit-Responsive Investment Contracts Employee benefit plan adjustment from fair value to contract value for fully benefit-responsive investment contracts Adjustment from fair value to contract value for fully benefit-responsive investment contracts Fixed Income Investments [Member] Fixed Income Securities Legal Entity [Axis] EBP, Plan Name EBP, plan name EBP, Asset [Abstract] ASSETS EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Net Investment Gain Net Appreciation in Fair Value Total Net Investment Income EBP, Investment, Fair Value and NAV [Table] Cash, Cash Equivalents And Short Term Investments [Member] Cash, cash equivalents and short-term investments. Cash, Cash Equivalents and Short-Term Investments Schedule of Stable Value Fund Employee Benefit Plan Schedule Of Stable Value Fund [Table Text Block] Employee benefit plan schedule of stable value fund. EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Employee Benefit Plans Contribution Vesting Description Employee benefit plans contribution vesting description. Fixed income funds Employee Benefit Plan Fixed Income Funds Employee benefit plan fixed income funds. EBP, Tax Status [Text Block] Tax Status EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] Maximum [Member] Maximum Statistical Measurement [Axis] EBP 004 [Member] EBP 004 EBP 004 EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Investment Income of Master Trust, Dividends from Common Stock Dividends Dividend income Entity Registrant Name EBP, Receivable Total Receivable Total Investment Income, Net Employee Benefit Plan, Net Investment Income Employee benefit plan, net investment income. EBP, Asset Held for Investment, Participant Loan, Interest Rate Employee benefit plan, interest rates for loans outstanding Employee benefit plan, asset held for investment, participant loan, interest rate EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Reconciliation of Financial Statements to Form 5500 Employee Benefit Plan, Cash, Cash Equivalents And Short Term Investments [Member] Employee benefit plan, cash, cash equivalents and short term investments. Cash, Cash Equivalents and Short-Term Investments EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Total Deductions EBP, Change in Net Asset Available for Benefit, Decrease Total Deductions EBP, Investment, Plan Interest in Master Trust, Contract Value Investment Income of Master Trust, Interest from Investment Contracts Contract Value Employee Benefit Plan Average Yield On Actual Earnings Employee benefit plan average yield on actual earnings. Average yield on actual earnings Level 1 Fair Value, Inputs, Level 1 [Member] Employee Benefit Plan Participant Loan Maturity Year Employee benefit plan, asset held for investment, participant loan, maturity year. Employee benefit plan, asset held for investment, participant loan, maturity year Employee benefit plan, retirement age Employee Benefit Plan Retirement Age Employee benefit plan retirement age. EBP, Tax Status [Line Items] Entity Tax Identification Number Entity Tax Identification Number Employee Benefit Plan Investment Effective Rate Employee benefit plan investment effective rate. Effective Rate EBP, Change in Net Asset Available for Benefit, Increase (Decrease) INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS EBP, Tax Status [Table] EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Adjustment from fair value to contract value for fully benefit-responsive investment contracts