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Revenues - Reconciliation of Allowance for Credit Losses (Details) - Public Service Electric and Gas Company [Member] - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Revenues [Line Items] |  |
Balance | $ 283 | $ 339
Provision | 103 | 100
Write-offs, net of Recoveries | (171) | (156)
Balance | $ 215 | $ 283

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