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Income Taxes (Schedule Of Effective Tax Rates) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Taxes [Line Items] |  |  |  |
Pre-Tax Income | $ (2,246) | $ 696 | $ (1,720) | $ 1,748
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | (472) | 146 | (361) | 367
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | (160) | 70 | (142) | 102
Income Tax Reconciliation Deductions Nuclear Decommissioning Trust | (1) | 12 | 17 | 10
Effective Income Tax Reconciliation, Tax Credit Amortization/Recapture | 2 | 4 | (29) | 12
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (60) | (63) | (181) | (151)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 13 | (40) | 11 | (42)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (210) | (25) | (266) | (93)
Income Tax Provision | $ (682) | $ 121 | $ (627) | $ 274
Effective tax rate | 30.40% | 17.40% | 36.50% | 15.70%
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 | $ 463 | $ 353 | $ 1,389 | $ 1,232
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 97 | 74 | 292 | 259
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 33 | 24 | 96 | 78
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (60) | (63) | (181) | (151)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 4 | 5 | 7 | 10
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (23) | (34) | (78) | (63)
Income Tax Provision | $ 74 | $ 40 | $ 214 | $ 196
Effective tax rate | 16.00% | 11.30% | 15.40% | 15.90%
PSEG Power [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Pre-Tax Income | $ (2,686) | $ 372 | $ (3,083) | $ 549
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | (564) | 78 | (647) | 115
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | (191) | 30 | (236) | 9
Income Tax Reconciliation Deductions Nuclear Decommissioning Trust | (1) | 12 | 17 | 10
Effective Income Tax Reconciliation, Tax Credit Amortization/Recapture | 0 | 2 | (36) | 6
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount | 0 | 0 | (2) | (22)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 3 | 0 | 4 | 6
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (189) | 40 | (181) | (3)
Income Tax Provision | $ (753) | $ 118 | $ (828) | $ 112
Effective tax rate | 28.00% | 31.70% | 26.90% | 20.40%

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