v3.26.1
Debt and Credit Facilities - Schedule of Line of Credit Facilities (Parenthetical) (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity [1] $ 3,825,000,000  
Commercial Paper 1,165,000,000 $ 1,529,000,000
PSEG Power [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,325,000,000  
Public Service Electric and Gas Company [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,000,000,000  
Commercial Paper 0 $ 325,000,000
Revolving Credit Facility [Member] | PSEG Power [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,250,000,000  
Revolving Credit Facility [Member] | Public Service Electric and Gas Company [Member]    
Debt Instrument [Line Items]    
Commercial Paper 0  
PSEG [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,500,000,000  
PSEG [Member] | Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,500,000,000  
Commercial Paper $ 165,000,000  
Short-term Debt, Weighted Average Interest Rate, at Point in Time 4.05%  
[1] Amounts do not include uncommitted credit facilities or 364-day term loans, if any apply.