75000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 75010 - Statement - STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS (MODIFIED CASH BASIS) link:presentationLink link:calculationLink link:definitionLink 75020 - Statement - STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS (MODIFIED CASH BASIS) 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 THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT 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 H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) (MODIFIED CASH BASIS) 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 THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT 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 - DESCRIPTION OF THE PLAN - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75170 - Disclosure - INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT PLAN) IN THE MASTER TRUST - Schedule of Master Trust Investment (Details) link:presentationLink link:calculationLink link:definitionLink 75180 - Disclosure - INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT PLAN) IN THE MASTER TRUST - Schedule of Changes in Net Assets of Master Trust (Details) link:presentationLink link:calculationLink link:definitionLink 75190 - Disclosure - INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT PLAN) IN THE MASTER TRUST - Schedule of Stable Value Fund (Details) link:presentationLink link:calculationLink link:definitionLink 75200 - Disclosure - INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT PLAN) IN THE MASTER TRUST - Schedule of Master Trust Investment - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75210 - Disclosure - FAIR VALUE MEASUREMENTS - Master Trust's Investments Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 75220 - Disclosure - FAIR VALUE MEASUREMENTS - Master Trust's Investments Measured at Fair Value on Recurring Basis (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 75230 - Disclosure - TAX STATUS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75240 - Disclosure - RELATED-PARTY AND PARTY-IN- INTEREST TRANSACTIONS (Additional Information) (Details) link:presentationLink link:calculationLink link:definitionLink 75250 - Disclosure - RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Schedule of Classification Differences Between The Financial Statements and Form 5500 (Details) link:presentationLink link:calculationLink link:definitionLink 75260 - Disclosure - RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 (Additional Information) (Details) link:presentationLink link:calculationLink link:definitionLink 75270 - Schedule - SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) (MODIFIED CASH BASIS) (Details) link:presentationLink link:calculationLink link:definitionLink Fixed Income Funds [Member] Fixed Income Securities EBP, Change in Net Asset Available for Benefit, Increase [Abstract] ADDITIONS Investment, Issuer Name [Axis] Benefit Payments to Participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Master Trust [Table Text Block] Schedule of Master Trust Investment EBP, Receivable [Abstract] Receivable: Fair Value, Inputs, Level 2 [Member] Significant Other Observable Inputs (Level 2) EBP, Investment, Level 3 Reconciliation, Increase from Transfer into Level 3 Transfers of investments into Level 3 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) EBP, Tax Status [Abstract] Employee Benefit Plan Changes In Net Asset Available For Benefit Increase Decrease Employee benefit plan changes in net asset available for benefit increase decrease. Increase in Net Assets EBP, Description of Plan [Text Block] Description of The Plan DESCRIPTION OF THE PLAN Interest on Notes Receivable from Participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative Expenses Administrative Expenses EBP, Description of Plan [Line Items] EBP, Master Trust [Abstract] EBP, Employer Contribution, Matching Percentage Employee benefit plan, percentage of contribution matching EBP, Investment, Fair Value and NAV [Abstract] Employee Benefit Plan, Investment Plan Assets Required for use of Level 3 Input for Periods Presented Employee benefit plan, investment plan assets required for use of level 3 input for periods presented. Plan assets required for use of level 3 input for periods presented EBP, Accounting Policy [Line Items] EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan Transfers to Public Service Enterprise Group Incorporated Thrift and Tax-Deferred Savings Plan - Net RGA [Member] RGA. RGA EBP, Master Trust [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] Common Collective Trust [Member] Collective Investment Trusts Employee Benefit Plan Investment Maturity Year Employee Benefit Plan Investment Maturity Year. Participant loan, maturity year 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 Employee Benefit Plan Defined Contribution Plan Deferred Deposits And Or Nondeferred Deposits Employee benefit plan defined contribution plan deferred deposits and or nondeferred deposits. Employee benefit plan defined contribution plan deferred deposits and/or nondeferred deposits EBP, Participant Contribution, Receivable Employee benefit plan participant contribution receivable 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. Employee benefit plan average yield on interest rate credited to participants Investment Type [Axis] Total Investments, at fair value EBP, Investment, Fair Value Total Investment Total Investment in Master Trust, at fair value Document Type Entity Central Index Key EBP, Self-Directed Brokerage Account [Member] Fidelity BrokerageLink Administrative Expenses of the Plan Employee Benefit Plan Administrative Expenses Of The Plan [Policy Text Block] Employee benefit plan administrative expenses of the plan. EBP, Contribution, Participating Employer [Axis] EBP, Accounting Policy [Table] EBP, Basis of Accounting [Policy Text Block] Basis of Accounting Current Fiscal Year End Date EBP, Investment, Plan Interest in Master Trust, Fair Value Total Investment in Master Trust, at fair value Total Investments, at fair value Total Investment 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 Common Stock of Public Service Enterprise Group Incorporated EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment, Total Change in Plan Interest in Master Employee Benefit Plan Trust Employee Benefit Plan Investment Valuation And Income Recognition [Policy Text Block] Employee benefit plan investment valuation and income recognition. Investment Valuation and Income Recognition EBP, Investment, Excluding Plan Interest in Master Trust, Cost Cost Net assets available for benefits per Form 5500 EBP, Form 5500 Caption, Net Assets Investment, Issuer Name [Domain] EBP, Investment, Number of Shares Number of shares held Minimum [Member] Minimum EBP, Related Party and Party-in-Interest Transactions [Text Block] RELATED-PARTY AND PARTY-IN- INTEREST TRANSACTIONS Total Additions EBP, Change in Net Asset Available for Benefit, Increase Transamerica [Member] Transamerica. Transamerica Employee benefit plan Investment Gains Employee benefit plan investment gains Investment gains Employee Benefit Plan Participants Account Balance At Termination Employee benefit plan participants account balance at termination. Employee benefit plan, participants account balance at terminatio EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total Deposits and Contributions Employee Benefit Plan Minimum Service Days Eligible For Annual Company Contribution From Employer Employee benefit plan minimum service days eligible for annual company contribution from employer. Employee benefit plan minimum service days eligible for annual company contribution from employer Prudential Ins Co. [Member] Prudential Ins Co. Prudential Ins Co. Employee Benefit Plan Percentage Of Amount Transfer Of Participant Employee benefit plan percentage of amount transfer of participant. Employee benefit plan percentage of amount transfer of participant EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] 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 Employee benefit plan investment plan interest in master trust increase (decrease) in fair value Employee Benefit Plan Investment Plan Interest In Master Trust Increase (Decrease) In Fair Value Employee benefit plan investment plan interest in master trust increase (decrease) in fair value. 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 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Deposits and Contributions Tax determination letter, date EBP, Tax Determination Letter, Date LIABILITIES EBP, Liability EBP, Liability, Total EBP, Participant Contribution, Automatic, Deferral Rate Employee benefit plan, contribution deferral rate EBP, Contribution, Participating Employer [Domain] EBP, Tax Qualification Status [Extensible Enumeration] EBP, Related Party and Party-in-Interest Transactions [Abstract] Employee Benefit Plan, Summary Of Stable Value Fund [Table Text Block] Employee Benefit Plan, Summary Of Stable Value Fund [Table Text Block] Summary of Stable Value Fund EBP, Use of Estimate [Policy Text Block] Use of Estimates EBP, Investment, Interest Rate Employee benefit plan, participant's account and existing loans bear interest rate Voya Retirement & Annuity Co. [Member] Voya Retirement & Annuity Co. Voya Retirement & Annuity Co. Mutual Funds Mutual Fund [Member] Entity [Domain] EBP, Summary of Accounting Policy [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 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 Pacific Life Insurance [Member] Pacific Life Insurance. Pacific Life Insurance EBP, Description of Plan and Accounting Change [Abstract] Schedule of Classification Differences Between The Financial Statements and Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Participant loan, current value EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statistical Measurement [Domain] Notes Receivable from Participants EBP, Note Receivable from Participant 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 Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] Tax determination letter, obtained EBP, Tax Determination Letter, Obtained [true false] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Plan Termination [Text Block] Plan Termination 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 Employee Benefit Plan Participants Borrow From Plan Accounts Percentage Employee benefit plan participants borrow from plan accounts percentage. Employee benefit plan participants borrow from plan accounts percentage Employee Benefit Plan Eligible Compensation Completed Service Days Employee benefit plan eligible compensation completed service days. Employee benefit plan, eligible compensation completed service days Investment Contract [Member] Investment contract. Investment Contracts EBP, Investment, Fair and Contract Value [Abstract] Investment: Cover [Abstract] EBP, Net Asset Value per Share or Unit Market value per share Investments [Domain] 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 Thrift and Tax-deferred Savings Plan (Thrift Plan) in the Master Trust INVESTMENT OF THE PLAN AND THE PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED THRIFT AND TAX-DEFERRED SAVINGS PLAN (THRIFT PLAN) IN THE MASTER TRUST Employee Benefit Plan Alternate Payee Or Beneficiary Employee benefit plan alternate payee or beneficiary. Employee benefit plan, alternate payee or beneficiary EBP, Net Asset Available for Benefit NET ASSETS AVAILABLE FOR BENEFITS Net assets available for benefits per the financial statements Total Investments of Master Trust Ending of Year Beginning of Year Master Trust's Investments Measured at Fair Value on Recurring Basis EBP, Investment, Fair Value and NAV [Table Text Block] NET ASSETS AVAILABLE FOR BENEFITS EBP, Net Asset Available for Benefit [Abstract] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Excess Contribution Payable Net Accounts Payable Net Accounts Receivable (Payable) Employee Benefit Plan Transfers Of The Frozen ESOP Fund [Policy Text Block] Employee benefit plan transfers of the frozen ESOP fund. Transfers of the Frozen ESOP Fund Employee Benefit Plan Number Of Options To Choose Employee benefit plan number of options to choose. Employee benefit plan, number of options to choose Employee benefit plan Interest Gains Of The Master Trust Employee benefit plan interest gains of the master trust Interest gains of the master trust EBP, Investment, Level 3 Reconciliation, Decrease from Transfer out of Level 3 Tansfers of investments out of Level 3 EBP, Schedule of Asset Held for Investment [Table Text Block] SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) (MODIFIED CASH BASIS) EBP, Statement of Net Asset Available for Benefit [Table] Document Fiscal Year Focus SECURE Act 2.0 Employee Benefit Plan SECURE Act 2.0 [Policy Text Block] Employee benefit plan secure act 2.0. EBP, Nonconsolidated, Master Trust [Member] Investments of Master Trust at Fair Value Employee Benefit Plan Annual Company Contribution Employee benefit plan annual company contribution. Employee benefit plan, annual company contribution 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 Contributions EBP, Contribution [Policy Text Block] 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 Adjustment from contract value to fair value for fully benefit-responsive investment contracts EBP, Plan Number Plan Number EBP, Nonconsolidated, Plan Interest in Master Trust [Member] Plan Interest in Master Employee Benefit Plan Trust EBP, Investment, Fair Value and NAV [Line Items] Document Information [Table] 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 Employee benefit plan adjustment from fair value to contract value for fully benefit-responsive investment contracts Legal Entity [Axis] EBP, Plan Name EBP, Asset [Abstract] ASSETS EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Total Investment Income, Net Total Net Investment Income EBP, Investment, Fair Value and NAV [Table] Cash, Cash Equivalents and Short-Term Investments Cash, Cash Equivalents And Short Term Investments [Member] Cash, cash equivalents and short-term investments. Schedule of Changes in Net Assets of Master Trust Employee Benefit Plan Change In Net Assets Table Text Block Employee benefit plan change in net assets table text block. EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table] First Five Years Service [Member] First five years service. First 5 Years Service Employee Benefit Plan Fixed Income Funds Employee benefit plan fixed income funds. Fixed income funds EBP, Tax Status [Text Block] TAX STATUS Employee Benefit Plan Dollar For Dollar Employer Matching Contribution Employee benefit plan Dollar For Dollar Employer Matching Contribution Employee benefit plan dollar-for-dollar employer matching contribution EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] Maximum [Member] Maximum Statistical Measurement [Axis] Net Appreciation in Fair Value Employee Benefit Plan Change In Net Asset Available For Benefit Increase In Fair Value On Investment Employee benefit plan change in net asset available for benefit increase in fair value on investment. Net Appreciation of Investments EBP, Statement of Change in Net Asset Available for Benefit [Abstract] After Five Years Service [Member] After Five years service. After 5 Years Service EBP 006 [Member] EBP 006. EBP 006 Employee Benefit Plan Social Security Earnings Employee benefit plan social security earnings. Employee benefit plan, social security earnings EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Dividends from Common Stock of Public Service Enterprise Group Incorporated Dividend income Employee Benefit Plan Retirement Program Selection Duration Employee benefit plan retirement program selection duration. Employee benefit plan, retirement program selection duration Entity Registrant Name EBP, Form 5500 Caption, Transfers of Assets to (from) this Plan Net Transfers EBP, Receivable Total Receivable Participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Employee benefit plan defined contribution plan employer matching contribution percentage Employee Benefit Plan Defined Contribution Plan Employer Matching Contribution Percentage Employee benefit plan defined contribution plan employer matching contribution percentage. Employee Benefit Plan Service Years Employee benefit plan service years. Employee benefit plan, years of service Employee Benefit Plan Core Contributions Percentage Employee benefit plan core contributions percentage. Employee benefit plan, core contributions percentage EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Axis] EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Employee Benefit Plan Master Trust [Member] Employee benefit plan master trust. Master Trust Employee Benefit Plan Automatic Contribution Arrangement Default Contribution Percentage Employee benefit plan automatic contribution arrangement default contribution percentage. Employee benefit plan, automatic contribution arrangement default contribution percentage Total Deductions EBP, Change in Net Asset Available for Benefit, Decrease EBP, Investment, Plan Interest in Master Trust, Contract Value Contract Value Employee Benefit Plan Average Yield On Actual Earnings Employee benefit plan average yield on actual earnings. Employee benefit plan average yield on actual earnings Fair Value, Inputs, Level 1 [Member] Quoted Market Prices for Identical Assets (Level 1) Disclosure Text Block [Abstract] EBP, Tax Status [Line Items] Entity Tax Identification Number EIN No. 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 INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS, PRIOR TO TRANSFERS INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS NET ASSETS AVAILABLE FOR BENEFITS EBP, Tax Status [Table]