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Valuation And Qualifying Accounts (Schedule Of Valuation And Qualifying Accounts) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Allowance For Doubtful Accounts [Member] |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  | $ 339 | [1] | $ 337 |  | $ 206 | [1]
Additions, Charged to cost and expenses | [2] | 100 |  | 114 |  | 195 |
Additions, Charged to other accounts-describe |  | 0 |  | 0 |  | 0 |
Deductions-describe | [3] | 156 |  | 112 |  | 64 |
Balance at End of Period |  | 283 |  | 339 | [1] | 337 |
Allowance For Doubtful Accounts [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  |  |  | 337 |  |  |
Balance at End of Period |  |  |  |  |  | 337 |
Materials And Supplies Valuation Reserve [Member] |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  | 10 |  | 12 |  | 10 |
Additions, Charged to cost and expenses |  | 4 |  | 1 |  | 3 |
Additions, Charged to other accounts-describe |  | 0 |  | 0 |  | 0 |
Deductions-describe | [4] | 0 |  | 3 |  | 1 |
Balance at End of Period |  | 14 |  | 10 |  | 12 |
Public Service Electric and Gas Company | Allowance For Doubtful Accounts [Member] |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  | 339 | [5] | 337 |  | 206 | [1]
Additions, Charged to cost and expenses | [6] | 100 |  | 114 |  | 195 |
Additions, Charged to other accounts-describe |  | 0 |  | 0 |  | 0 |
Deductions-describe | [7] | 156 |  | 112 |  | 64 |
Balance at End of Period |  | 283 |  | 339 | [5] | 337 |
Public Service Electric and Gas Company | Allowance For Doubtful Accounts [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  |  |  | 337 |  |  |
Balance at End of Period |  |  |  |  |  | 337 |
Public Service Electric and Gas Company | Materials And Supplies Valuation Reserve [Member] |  |  |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |  |
Balance at Beginning of Period |  | 4 |  | 3 |  | 2 |
Additions, Charged to cost and expenses |  | 3 |  | 1 |  | 2 |
Additions, Charged to other accounts-describe |  | 0 |  | 0 |  | 0 |
Deductions-describe |  | 0 |  | 0 | [8] | 1 |
Balance at End of Period |  | $ 7 |  | $ 4 |  | $ 3 |
[1] |
[2] | For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.
[3] | Accounts Receivable written off.
[4] | Reserve reduced to appropriate level as a result of asset dispositions and to remove obsolete inventory.
[5] |
[6] | For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.
[7] | Accounts Receivable written off.
[8] | Reserve reduced to appropriate level and to remove obsolete inventory.

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