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Asset Retirement Obligations (AROs) (Impact Of The Revisions On Asset Retirement Obligation) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] |  |  |
ARO Liability, Beginning Balance |  | $ 1,499 | $ 1,573
Liabilities Settled |  | (13) | (15)
Accretion Expense |  | 51 | 50
Accretion Expense Deferred and Recovered in Rate Base | [1] | 16 | 17
Revision to Present Value of Future Cash Flows |  | (85) | (126)
ARO Liability, Ending Balance |  | 1,468 | 1,499
Public Service Electric and Gas Company |  |  |
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] |  |  |
ARO Liability, Beginning Balance |  | 384 | 363
Liabilities Settled |  | (13) | (15)
Accretion Expense |  | 0 | 0
Accretion Expense Deferred and Recovered in Rate Base | [1] | 16 | 17
Revision to Present Value of Future Cash Flows |  | 14 | 19
ARO Liability, Ending Balance |  | 401 | 384
PSEG Power & Other |  |  |
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] |  |  |
ARO Liability, Beginning Balance |  | 1,115 | 1,210
Liabilities Settled |  | 0 | 0
Accretion Expense |  | 51 | 50
Accretion Expense Deferred and Recovered in Rate Base | [1] | 0 | 0
Revision to Present Value of Future Cash Flows |  | (99) | (145)
ARO Liability, Ending Balance |  | 1,067 | 1,115
PSEG Power LLC [Member] |  |  |
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] |  |  |
Revision to Present Value of Future Cash Flows |  | $ 99 | $ 145
[1] | Not reflected as expense in Consolidated Statements of Operations.

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- Definition Accretion Expense Deferred And Recovered In Rate Base + References No definition available. + Details
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481999/410-20-25-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481879/410-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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