Fair Value Measurements - Schedule of Investments Measured at Fair Value on Recurring Basis (Details) - EBP 003 - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	$ 425,816	$ 375,627
Master Trust
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	854,647	726,726
Master Trust \| Mutual Funds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	72,250	114,616
Master Trust \| Collective Investment Trusts
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	755,688	586,491
Master Trust \| Commingled Bonds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	13,732	12,349
Master Trust \| Common Stock of PSEG
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	12,977	13,270
Master Trust \| Quoted Market Prices for Identical Assets (Level 1)
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	854,647	726,726
Master Trust \| Quoted Market Prices for Identical Assets (Level 1) \| Mutual Funds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	72,250	114,616
Master Trust \| Quoted Market Prices for Identical Assets (Level 1) \| Collective Investment Trusts
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	755,688	586,491
Master Trust \| Quoted Market Prices for Identical Assets (Level 1) \| Commingled Bonds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	13,732	12,349
Master Trust \| Quoted Market Prices for Identical Assets (Level 1) \| Common Stock of PSEG
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	12,977	13,270
Master Trust \| Significant Other Observable Inputs (Level 2)
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Other Observable Inputs (Level 2) \| Mutual Funds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Other Observable Inputs (Level 2) \| Collective Investment Trusts
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Other Observable Inputs (Level 2) \| Commingled Bonds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Other Observable Inputs (Level 2) \| Common Stock of PSEG
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Unobservable Inputs (Level 3) (A)
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Unobservable Inputs (Level 3) (A) \| Mutual Funds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Unobservable Inputs (Level 3) (A) \| Collective Investment Trusts
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Unobservable Inputs (Level 3) (A) \| Commingled Bonds
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	0	0
Master Trust \| Significant Unobservable Inputs (Level 3) (A) \| Common Stock of PSEG
EBP, Master Trust [Line Items]
Total Investment in Master Trust at Fair Value	$ 0	$ 0