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Revenues - Reconciliation of Allowance for Credit Losses (Details) - Public Service Electric and Gas Company [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues [Line Items]
Balance	$ 226	$ 253	$ 215	$ 283
Provision	41	20	100	65
Write-offs, net of Recoveries	(31)	(35)	(79)	(110)
Balance	$ 236	$ 238	$ 236	$ 238

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Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of expense related to credit loss from transactions other than loan and lease transactions.

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