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Financial Risk Management Activities (Schedule Providing Credit Risk From Others, Net Of Collateral) (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($) Counterparty
PSEG Power [Member] |
Derivative [Line Items] |
Current Exposure | $ 284
Securities held as Collateral | 11
Net exposure | $ 273
Number of Counterparties greater than 10% | Counterparty | 1
Number Of Active Counterparties On Credit Risk Derivatives | Counterparty | 102
PSEG Power [Member] | Investment Grade - External Rating [Member] |
Derivative [Line Items] |
Percentage Of Credit Exposure | 96.00%
PSEG Power [Member] | Investment Grade [Member] |
Derivative [Line Items] |
Current Exposure | $ 270
Securities held as Collateral | 9
Net exposure | $ 261
Number of Counterparties greater than 10% | Counterparty | 1
Amount Of Net Credit Exposure Greater Than Ten Percent | $ 148
PSEG Power [Member] | External Credit Rating, Non Investment Grade [Member] |
Derivative [Line Items] |
Current Exposure | 14
Securities held as Collateral | 2
Amount Of Net Credit Exposure Greater Than Ten Percent | 0
PSEG Power [Member] | Non-Investment Grade [Member] |
Derivative [Line Items] |
Net exposure | $ 12
Number of Counterparties greater than 10% | Counterparty | 0
Public Service Electric and Gas Company [Member] |
Derivative [Line Items] |
Current Exposure | $ 179
Letter of Credit [Member] | PSEG Power [Member] |
Derivative [Line Items] |
Securities held as Collateral | 11
Public Service Electric and Gas Company [Member] | PSEG Power [Member] | Investment Grade [Member] |
Derivative [Line Items] |
Amount Of Net Credit Exposure Greater Than Ten Percent | $ 148

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