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Valuation and Qualifying Accounts - Schedule Of Valuation And Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Allowance for Credit Losses [Member] |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |
Balance at Beginning of Period |  | $ 283 | $ 339 | $ 337 |
Additions, Charged to cost and expenses | [1] | 103 | 100 | 114 |
Additions, Charged to other accounts-describe |  | 0 | 0 | 0 |
Deductions-describe | [2] | 171 | 156 | 112 |
Balance at End of Period |  | 215 | 283 | 339 |
Allowance for Credit Losses [Member] | Public Service Electric and Gas Company |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |
Balance at Beginning of Period |  | 283 | 339 | 337 |
Additions, Charged to cost and expenses | [3] | 103 | 100 | 114 |
Additions, Charged to other accounts-describe |  | 0 | 0 | 0 |
Deductions-describe | [4] | 171 | 156 | 112 |
Balance at End of Period |  | 215 | 283 | 339 |
Materials And Supplies Valuation Reserve [Member] |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |
Balance at Beginning of Period |  | 14 | 10 | 12 |
Additions, Charged to cost and expenses |  | 1 | 4 | 1 |
Additions, Charged to other accounts-describe |  | 0 | 0 | 0 |
Deductions-describe |  | 2 | 0 | 3 | [5]
Balance at End of Period |  | 13 | 14 | 10 |
Materials And Supplies Valuation Reserve [Member] | Public Service Electric and Gas Company |  |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |
Balance at Beginning of Period |  | 7 | 4 | 3 |
Additions, Charged to cost and expenses |  | 1 | 3 | 1 |
Additions, Charged to other accounts-describe |  | 0 | 0 | 0 |
Deductions-describe |  | 2 | 0 | 0 |
Balance at End of Period |  | $ 6 | $ 7 | $ 4 |
[1] | For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accountin g Policies.
[2] | A ccounts Receivable w ritten off.
[3] | For a discussion of bad debt recoveries, see Item 8. Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.
[4] | Accounts Receivable written off. (C) Reserve reduced to appropriate level and to remove obsolete inventory.
[5] | Reserve reduced to appropriate level as a result of asset dispositions and to remove obsolete inventory.

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