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Commitments And Contingent Liabilities (Basic Generation Service (BGS) And Basic Gas Supply Service (BGSS)) (Detail) cf in Billions | 6 Months Ended
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Jun. 30, 2022 USD ($) cf $ / MWh $ / mwd MW
Long-term Purchase Commitment [Line Items] |  |
Number of cubic feet in gas hedging permitted to be recovered by BPU | cf | 115 |
Percentage of residential gas supply permitted to be recovered in gas hedging by BPU | 80.00% |
Number Of Cubic Feet To Be Hedged | cf | 70 |
Percentage of annual residential gas supply requirements to be hedged | 50.00% |
ZEC Charge per kwh | $ | $ 0.004 |
Public Service Electric and Gas Company [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
ZEC Charge per kwh | $ | $ 0.004 |
Public Service Electric and Gas Company [Member] | Auction Year 2019 [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Load (MW) | MW | 2,800 |
Dollars Per Megawatt Hour | $ / MWh | 98.04 |
Public Service Electric and Gas Company [Member] | Auction Year 2020 [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Dollars Per Megawatt-Day | $ / mwd | 351.06 |
Load (MW) | MW | 2,800 |
Dollars Per Megawatt Hour | $ / MWh | 102.16 |
Public Service Electric and Gas Company [Member] | Auction Year 2021 |  |
Long-term Purchase Commitment [Line Items] |  |
Dollars Per Megawatt-Day | $ / mwd | 276.26 |
Load (MW) | MW | 2,900 |
Dollars Per Megawatt Hour | $ / MWh | 64.80 |
Public Service Electric and Gas Company [Member] | Auction Year 2022 |  |
Long-term Purchase Commitment [Line Items] |  |
Load (MW) | MW | 2,800 |
Dollars Per Megawatt Hour | $ / MWh | 76.30 | [1]
[1] | Prices set in the 2022 BGS auction became effective on June 1, 2022 when the 2019 BGS auction agreements expired.

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