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Income Taxes (Schedule Of Effective Tax Rates) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Income Taxes [Line Items] |  |
Pre-Tax Income | $ 629 | $ 1,585
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 132 | 333
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 40 | 108
Uncertain Tax Positions | 1 | (6)
Effective Income Tax Rate Reconciliation, Leasing Activities, Amount | 0 | (17)
Effective Income Tax Rate Reconciliation, GPRC | (15) | (16)
Effective Tax Rate Reconciliation, Effective Tax Rate Adjustment | (17) | (23)
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (43) | (75)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | (1) | (6)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (35) | (35)
Income Tax Provision | $ 97 | $ 298
Effective tax rate | 15.40% | 18.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |
Public Service Electric and Gas Company [Member] |  |
Income Taxes [Line Items] |  |
Pre-Tax Income | $ 580 | $ 541
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 122 | 114
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 41 | 38
Effective Income Tax Rate Reconciliation, GPRC | (15) | (16)
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (43) | (75)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | (13) | (7)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (30) | (60)
Income Tax Provision | $ 92 | $ 54
Effective tax rate | 15.90% | 10.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |

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