| Document and Entity Information | Apr. 18, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | PUBLIC SERVICE ENTERPRISE GROUP INC |
| Amendment Flag | true |
| Entity Central Index Key | 0000788784 |
| Document Type | 8-K/A |
| Document Period End Date | Apr. 18, 2022 |
| Entity Incorporation State Country Code | NJ |
| Entity File Number | 001-09120 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock without par value |
| Trading Symbol | PEG |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Description | On September 1, 2022, Public Service Enterprise Group Incorporated (PSEG) announced that in accordance with the planned transition previously disclosed by PSEG on Form 8-K filed on April 19, 2022, as of today, Ralph LaRossa, 59, succeeded Ralph Izzo as President and Chief Executive Officer and joined PSEG’s Board of Directors (the Board), and Mr. Izzo assumed the role of the Executive Chair of the Board. As previously disclosed, Mr. LaRossa will assume the role of Chair of the Board on January 1, 2023, at which time, by operation of the PSEG’s Corporate Governance Principles, he will also join the Executive Committee of the Board. |
