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Debt and Credit Facilities - Long-Term Debt Maturities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
2025 $ 2,150  
2026 875  
2027 1,125  
2028 1,300  
2029 1,125  
Thereafter 14,686  
Total 21,261  
PSEG [Member]    
Debt Instrument [Line Items]    
2025 550  
2026 0  
2027 700  
2028 600  
2029 750  
Thereafter 2,296  
Total 4,896 $ 4,396
Public Service Electric and Gas Company [Member]    
Debt Instrument [Line Items]    
2025 350  
2026 875  
2027 425  
2028 700  
2029 375  
Thereafter 12,390  
Total 15,115  
PSEG Power [Member]    
Debt Instrument [Line Items]    
2025 1,250  
2026 0  
2027 0  
2028 0  
2029 0  
Thereafter 0  
Total $ 1,250