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Leases - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
Renewal
Dec. 31, 2022
USD ($)
Dec. 31, 2023
USD ($)
Five year renewals | Subsidiaries | Services      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 2 years    
Public Service Electric and Gas Company [Member]      
Lessor, Lease, Description [Line Items]      
Operating lease liabilities, current $ 15   $ 15
Public Service Electric and Gas Company [Member] | Five year renewals      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 4 years    
Public Service Electric and Gas Company [Member] | Ten year renewals      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 1 year    
Lessor, Operating Lease, Number Of Renewal Periods | Renewal 5    
Public Service Electric and Gas Company [Member] | Forty Five year renewals      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 1 year    
Public Service Electric and Gas Company [Member] | Forty Eight Year renewals      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 1 year    
PSEG Power | Five year renewals      
Lessor, Lease, Description [Line Items]      
Number of lease renewal terms 1 year    
PSEG      
Lessor, Lease, Description [Line Items]      
Operating lease liabilities, current $ 29   $ 27
Energy Holdings [Member]      
Lessor, Lease, Description [Line Items]      
Property, Plant, and Equipment, Lessor Asset under Operating Lease, after Accumulated Depreciation $ 9    
Impairment of Long-Lived Assets to be Disposed of   $ 78