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Financial Information By Business Segments (Financial Information By Business Segments) (Detail) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |  |
Operating Revenues |  | $ 2,760 | $ 3,755 |
Net Income (Loss) | [1] | 532 | 1,287 |
Gross Addition to Long-Lived Assets |  | 797 | 739 |
Total Assets |  | 52,388 |  | $ 50,741
Investments in Equity Method Subsidiaries |  | 17 |  | 17
Operating Segments [Member] | Public Service Electric and Gas Company [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Revenues |  | 2,333 | 2,293 |
Net Income (Loss) |  | 488 | 487 |
Gross Addition to Long-Lived Assets |  | 739 | 676 |
Total Assets |  | 43,592 |  | 42,873
Investments in Equity Method Subsidiaries |  | 0 |  | 0
Operating Segments [Member] | PSEG Power & Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Revenues | [2] | 872 | 2,027 |
Net Income (Loss) | [1] | 44 | 800 |
Gross Addition to Long-Lived Assets |  | 58 | 63 |
Total Assets |  | 9,335 |  | 8,407
Investments in Equity Method Subsidiaries |  | 17 |  | 17
non trading commodity mark to market gains (losses), net of tax |  | (186) | 555 |
Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Revenues | [3] | (445) | (565) |
Net Income (Loss) | [3] | 0 | 0 |
Gross Addition to Long-Lived Assets | [3] | 0 | $ 0 |
Total Assets | [3] | (539) |  | (539)
Investments in Equity Method Subsidiaries | [3] | $ 0 |  | $ 0
[1] | Includes net after-tax gains (losses) of $(186) million and $555 million for the three months ended March 31, 2024 and 2023, respectively, at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consist of the financial impact from positions with future delivery dates.
[2] | Includes revenues applicable to PSEG Power, PSEG LI and Energy Holdings.
[3] | Intercompany eliminations primarily relate to intercompany transactions between PSE&G and PSEG Power. For a further discussion of the intercompany transactions between PSE&G and PSEG Power, see Note 18. Related-Party Transactions.

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