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Revenues - Reconciliation of Allowance for Credit Losses (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Public Service Electric and Gas Company [Member]
Revenues [Line Items]
Recoveries	$ 13	$ 10	$ 32	$ 24

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- Definition

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

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