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Commitments and Contingent Liabilities - Schedule of Outstanding Guarantees, Current Exposure and Margin Positions (Details) - PSEG Power - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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Loss Contingencies [Line Items] |  |
Face Value of Outstanding Guarantees | $ 1,024 | $ 1,272
Exposure under Current Guarantees | 59 | 47
Letters of Credit - Counterparty Margining Posted | 19 | 4
Letters of Credit - Counterparty Margining Received | 9 | 24
Counterparty Cash Collateral Deposited | 0 | 0
Counterparty Cash Collateral Received | 0 | (1)
Net Broker Balance Deposited (Received) | 257 | 245
Other Letters of Credit | $ 161 | $ 155

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