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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 16, 2024
Jun. 30, 2023
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-09120    
Entity Registrant Name Public Service Enterprise Group Incorporated    
Entity Incorporation, State or Country Code NJ    
Entity Tax Identification Number 22-2625848    
Entity Address, Address Line One 80 Park Plaza    
Entity Address, City or Town Newark,    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07102    
City Area Code 973    
Local Phone Number 430-7000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 31,072,400,281
Entity Common Stock, Shares Outstanding   498,586,596  
Documents Incorporated by Reference
Part of Form 10-K of
Public Service
Enterprise Group Incorporated		Documents Incorporated by Reference
III
Portions of the definitive Proxy Statement for the 2024 Annual Meeting of Stockholders of Public Service Enterprise Group Incorporated, which definitive Proxy Statement is expected to be filed with the Securities and Exchange Commission on or about March 7, 2024, as specified herein.
    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000788784    
ICFR Auditor Attestation Flag true    
Auditor Firm ID 34    
Auditor Name DELOITTE & TOUCHE LLP    
Auditor Location Morristown, New Jersey    
Document Financial Statement Error Correction [Flag] false    
Public Service Electric and Gas Company      
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-00973    
Entity Registrant Name Public Service Electric and Gas Company    
Entity Incorporation, State or Country Code NJ    
Entity Tax Identification Number 22-1212800    
Entity Address, Address Line One 80 Park Plaza    
Entity Address, City or Town Newark,    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07102    
City Area Code 973    
Local Phone Number 430-7000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   132,450,344  
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000081033    
ICFR Auditor Attestation Flag false    
Auditor Firm ID 34    
Auditor Name DELOITTE & TOUCHE LLP    
Auditor Location Morristown, New Jersey    
Document Financial Statement Error Correction [Flag] false    
Common Stock without par value [Member]      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock without par value    
Trading Symbol PEG    
Security Exchange Name NYSE    
8.00% First and Refunding Mortgage Bonds, due 2037 | Public Service Electric and Gas Company      
Entity Information [Line Items]      
Title of 12(b) Security 8.00% First and Refunding Mortgage Bonds, due 2037    
Trading Symbol PEG37D    
Security Exchange Name NYSE    
5.00% First and Refunding Mortgage Bonds, due 2037 | Public Service Electric and Gas Company      
Entity Information [Line Items]      
Title of 12(b) Security 5.00% First and Refunding Mortgage Bonds, due 2037    
Trading Symbol PEG37J    
Security Exchange Name NYSE