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Commitments and Contingent Liabilities - Schedule of Outstanding Guarantees, Current Exposure and Margin Positions (Details) - PSEG Power - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Loss Contingencies [Line Items]
Face Value of Outstanding Guarantees	$ 1,019	$ 1,272
Exposure under Current Guarantees	57	47
Letters of Credit - Counterparty Margining Posted	19	4
Letters of Credit - Counterparty Margining Received	23	24
Counterparty Cash Collateral Deposited	0	0
Counterparty Cash Collateral Received	0	(1)
Net Broker Balance Deposited (Received)	107	245
Other Letters of Credit	$ 232	$ 155

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Exposure under Current Guarantees

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Net Broker Balance Received

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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