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Financial Information By Business Segments (Financial Information By Business Segments) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating Revenues |  |  |  | $ 11,237 | $ 9,800 | $ 9,722
Depreciation and Amortization |  |  |  | 1,135 | 1,100 | 1,216
Operating Income (Loss) |  |  |  | 3,685 | 1,381 | (856)
Income from Equity Method Investments |  |  |  | 1 | 14 | 16
Interest Income |  |  |  | 53 | 31 | 20
Interest Expense |  |  |  | (748) | (628) | (571)
Income (Loss) before Income Taxes |  |  |  | 3,081 | 1,002 | (1,089)
Income Tax Expense (Benefit) |  |  |  | 518 | (29) | (441)
Net Income (Loss) | [1],[2] |  |  | 2,563 | 1,031 | (648)
Gross Additions to Long-Lived Assets |  |  |  | 3,325 | 2,888 | 2,719
Total Assets |  | $ 50,741 |  | 50,741 | 48,718 | 48,999
Investments in Equity Method Subsidiaries |  | 17 |  | 17 | 306 | 173
Pension Lift Out Settlement Charge, net of tax |  | 4 | $ 239 | 240 |  |
PSEG Power & Other |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Gain (loss) on sale, net of tax |  |  |  |  | (92) | (2,158)
Retained Earnings [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net Income (Loss) |  |  |  | 2,563 | 1,031 | (648)
Operating Segments [Member] | Public Service Electric and Gas Company |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating Revenues |  |  |  | 7,807 | 7,935 | 7,122
Depreciation and Amortization |  |  |  | 980 | 935 | 928
Operating Income (Loss) |  |  |  | 1,974 | 1,892 | 1,818
Income from Equity Method Investments |  |  |  | 0 | 0 | 0
Interest Income |  |  |  | 19 | 19 | 14
Interest Expense |  |  |  | (493) | (427) | (402)
Income (Loss) before Income Taxes |  |  |  | 1,675 | 1,832 | 1,770
Income Tax Expense (Benefit) |  |  |  | 160 | 267 | 324
Net Income (Loss) |  |  |  | 1,515 | 1,565 | 1,446
Gross Additions to Long-Lived Assets |  |  |  | 2,998 | 2,590 | 2,447
Total Assets |  | 42,873 |  | 42,873 | 39,960 | 37,198
Investments in Equity Method Subsidiaries |  | 0 |  | 0 | 0 | 0
Operating Segments [Member] | PSEG Power & Other |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating Revenues | [3] |  |  | 4,533 | 3,266 | 3,767
Depreciation and Amortization |  |  |  | 155 | 165 | 288
Operating Income (Loss) |  |  |  | 1,711 | (511) | (2,674)
Income from Equity Method Investments |  |  |  | 1 | 14 | 16
Interest Income |  |  |  | 38 | 13 | 6
Interest Expense |  |  |  | (259) | (202) | (169)
Income (Loss) before Income Taxes |  |  |  | 1,406 | (830) | (2,859)
Income Tax Expense (Benefit) |  |  |  | 358 | (296) | (765)
Net Income (Loss) | [1],[2] |  |  | 1,048 | (534) | (2,094)
Gross Additions to Long-Lived Assets |  |  |  | 327 | 298 | 272
Total Assets |  | 8,407 |  | 8,407 | 9,285 | 12,258
Investments in Equity Method Subsidiaries |  | 17 |  | 17 | 306 | 173
non trading commodity mark to market gains (losses), net of tax |  |  |  | 959 | (457) | (446)
Eliminations [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating Revenues | [4] |  |  | (1,103) | (1,401) | (1,167)
Depreciation and Amortization | [4] |  |  | 0 | 0 | 0
Operating Income (Loss) | [4] |  |  | 0 | 0 | 0
Income from Equity Method Investments | [4] |  |  | 0 | 0 | 0
Interest Income | [4] |  |  | (4) | (1) | 0
Interest Expense | [4] |  |  | 4 | 1 | 0
Income (Loss) before Income Taxes | [4] |  |  | 0 | 0 | 0
Income Tax Expense (Benefit) | [4] |  |  | 0 | 0 | 0
Net Income (Loss) | [4] |  |  | 0 | 0 | 0
Gross Additions to Long-Lived Assets | [4] |  |  | 0 | 0 | 0
Total Assets | [4] | (539) |  | (539) | (527) | (457)
Investments in Equity Method Subsidiaries | [4] | $ 0 |  | $ 0 | $ 0 | $ 0
[1] | Includes a $239 million after-tax pension charge due to the remeasurement of the qualified pension plans as a result of the pension settlement transaction in the third quarter of 2023. Includes after-tax impairments of $92 million related to certain Energy Holdings investments and additional adjustments related to the sale of PSEG Power’s fossil generation assets in the year ended December 31, 2022. Includes after-tax impairment losses and other charges, including debt extinguishment costs, related to the sale of the fossil generating assets at PSEG Power of $2,158 million in the year ended December 31, 2021. See Note 3. Asset Dispositions and Impairments for additional information.
[2] | Includes net after-tax gain (loss) of $959 million, $(457) million and $(446) million in the years ended December 31, 2023, 2022 and 2021, respectively at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consists of the financial impact from positions with future delivery dates.
[3] | Includes revenues applicable to PSEG Power, PSEG LI and Energy Holdings.
[4] | 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 24. Related-Party Transactions.

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