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Asset Retirement Obligations (AROs) (Tables) | 12 Months Ended
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Dec. 31, 2023
Asset Retirement Obligation [Abstract] |
Impact Of The Revisions On Asset Retirement Obligation | The changes to the ARO liabilities for PSEG and PSE&G during 2022 and 2023 are presented in the following table:
|  |  | PSEG |  | PSE&G |  | PSEG Power & Other |
|  |  | Millions |
| ARO Liability as of January 1, 2022 |  | $ | 1,573 |  |  | $ | 363 |  |  | $ | 1,210 |  |
| Liabilities Settled |  | (15) |  |  | (15) |  |  | — |  |
| Accretion Expense |  | 50 |  |  | — |  |  | 50 |  |
| Accretion Expense Deferred and Recovered in Rate Base (A) |  | 17 |  |  | 17 |  |  | — |  |
| Revision to Present Values of Estimated Cash Flows |  | (126) |  |  | 19 |  |  | (145) |  |
| ARO Liability as of December 31, 2022 |  | $ | 1,499 |  |  | $ | 384 |  |  | $ | 1,115 |  |
| Liabilities Settled |  | $ | (13) |  |  | $ | (13) |  |  | $ | — |  |
| Accretion Expense |  | 51 |  |  | — |  |  | 51 |  |
| Accretion Expense Deferred and Recovered in Rate Base (A) |  | 16 |  |  | 16 |  |  | — |  |
| Revision to Present Values of Estimated Cash Flows |  | (85) |  |  | 14 |  |  | (99) |  |
| ARO Liability as of December 31, 2023 |  | $ | 1,468 |  |  | $ | 401 |  |  | $ | 1,067 |  |
(A)Not reflected as expense in Consolidated Statements of Operations.

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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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