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Rate Filings - Additional Information (Details)
1 Months Ended 9 Months Ended
Oct. 31, 2025
USD ($)
Aug. 31, 2025
USD ($)
$ / MWh
Jul. 31, 2025
USD ($)
Jun. 30, 2025
USD ($)
May 31, 2025
USD ($)
Apr. 30, 2025
USD ($)
Jan. 31, 2025
USD ($)
Sep. 30, 2025
Public Service Electric and Gas Company [Member] | ZEC Liability [Member]                
Regulatory Assets And Liabilities [Line Items]                
Price per mega watt hour | $ / MWh   10            
ZEC purchases   $ 164,000,000            
Overcollected revenues   5,500,000            
Public Service Electric and Gas Company [Member] | Conservation Incentive Program [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount         $ 65,000,000      
Public Utilities, Requested Rate Increase (Decrease), Amount         97,000,000      
Public Service Electric and Gas Company [Member] | Gas System Modernization Program II [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount     $ 49,000,000          
Public Utilities, Requested Rate Increase (Decrease), Amount   $ 28,000,000            
Public Service Electric and Gas Company [Member] | Remediation Adjustment Clause [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount             $ 56,000,000  
Public Service Electric and Gas Company [Member] | Electric Green Program Recovery [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount         54,000,000      
Public Utilities, Requested Rate Increase (Decrease), Amount       $ 207,000,000        
Public Service Electric and Gas Company [Member] | Gas Green Program Recovery [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount         $ 22,000,000      
Public Utilities, Requested Rate Increase (Decrease), Amount       24,000,000        
Public Service Electric and Gas Company [Member] | Electric Generation/Capacity Cost Deferral [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities amount approved to provide credit to residential electric customers       30        
Public utilities amount charged to residential electric customers       10        
Public utilities approved to provide credit and charge to customers description               In June 2025, the BPU approved an Order authorizing PSE&G to provide a $30 credit to each residential electric customer’s monthly bill for the two-month period July through August 2025. For the six-month period September 2025 through February 2026, PSE&G will apply a charge to each residential electric customer’s monthly bill of $10.
Public Service Electric and Gas Company [Member] | Clean Energy Future-Electric Vehicles [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public Utilities, Requested Rate Increase (Decrease), Amount $ 9,000,000              
Public Service Electric and Gas Company [Member] | Basic Gas Supply Service [Member]                
Regulatory Assets And Liabilities [Line Items]                
Approved BGSS rate per therm           0.33    
Requested to increase BGSS rate per therm         0.36      
Public Service Electric and Gas Company [Member] | Basic Gas Supply Service [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Approved BGSS rate per therm 0.36              
Approved increase decrease BGSS rate per therm 0.03              
Public Service Electric and Gas Company [Member] | Electric Tax Adjustment Credit [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public Utilities, Requested Rate Increase (Decrease), Amount $ 15,000,000              
Public Service Electric and Gas Company [Member] | Gas Tax Adjustment Credit [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public Utilities, Requested Rate Increase (Decrease), Amount 10,000,000              
New Jersey Gas Distribution Companies (GDCs) [Member] | Basic Gas Supply Service [Member] | Maximum [Member]                
Regulatory Assets And Liabilities [Line Items]                
Approved increase decrease BGSS rate per therm         0.05      
Electric Infrastructure Advancement Program [Member] | Public Service Electric and Gas Company [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount           $ 6,000,000    
Electric Infrastructure Advancement Program [Member] | Public Service Electric and Gas Company [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public Utilities, Requested Rate Increase (Decrease), Amount 14,000,000              
Gas Infrastructure Advancement Program [Member] | Public Service Electric and Gas Company [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount           $ 3,000,000    
Gas Infrastructure Advancement Program [Member] | Public Service Electric and Gas Company [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public Utilities, Requested Rate Increase (Decrease), Amount 4,000,000              
Transmission [Member] | Public Service Electric and Gas Company [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount       $ 28,000,000        
Transmission [Member] | Public Service Electric and Gas Company [Member] | Subsequent Event [Member]                
Regulatory Assets And Liabilities [Line Items]                
Public utilities, approved rate increase (decrease), amount $ 82,000,000