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Early Plant Retirements/Asset Dispositions Early Plant Retirements/Asset Dispositions (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2021 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Liabilities Held-for-Sale |  |  |  | $ 126,000,000 |  | $ 126,000,000 |  | $ 0
PSEG Power [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
ZEC Charge per kwh |  |  |  |  |  | 0.004 |  |
ZEC Charge per MWh |  |  |  |  |  | 10 |  |
Gain (Loss) on Disposition |  |  |  |  |  |  | $ 122,000,000 |
Severance Costs, Environmental Accruals and Other Adjustments |  |  |  |  |  | 13,000,000 |  |
Assets Held for Sale |  |  |  | 2,050,000,000 |  | 2,050,000,000 |  |
Liabilities Held-for-Sale |  |  |  | 126,000,000 |  | 126,000,000 |  | $ 0
Impairment of Long-Lived Assets to be Disposed of |  |  |  | 2,162,000,000 | $ 519,000,000 | 2,681,000,000 |  |
PSEG Power [Member] | Other Current Assets [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Assets Held for Sale | [1] |  |  | 264,000,000 |  | 264,000,000 |  |
PSEG Power [Member] | Property, Plant and Equipment |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Assets Held for Sale |  |  |  | 1,749,000,000 |  | 1,749,000,000 |  |
PSEG Power [Member] | Other Noncurrent Assets [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Assets Held for Sale |  |  |  | 37,000,000 |  | 37,000,000 |  |
PSEG Power [Member] | Other Current Liabilities [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Liabilities Held-for-Sale | [2] |  |  | 49,000,000 |  | 49,000,000 |  |
PSEG Power [Member] | Other Noncurrent Liabilities [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Liabilities Held-for-Sale | [3] |  |  | $ 77,000,000 |  | 77,000,000 |  |
PSEG Power [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  | $ 298,000,000 |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  | $ 1,920,000,000 |  |  |  |  |
PSEG Power [Member] | Other Production-Solar |  |  |  |  |  |  |  |
Early Plant Retirements/Asset Dispositions [Line Items] |  |  |  |  |  |  |  |
Gain (Loss) on Disposition |  |  |  |  |  | 62,000,000 |  |
Disposal group, gain (loss) on sale tax impact |  |  |  |  |  | 63,000,000 |  |
Deferred ITC previously recognized |  |  |  |  |  | $ 185,000,000 |  |
[1] | Primarily includes Fuel, Materials and Supplies, Prepayments and Other Current Assets.
[2] | Primarily includes Accounts Payable and Other Current Liabilities.
[3] | Primarily includes AROs, Accrued Pension Costs and Other Noncurrent Liabilities

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