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Income Taxes (Schedule Of Effective Tax Rates) (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Income Taxes [Line Items] |  |
Pre-Tax Income | $ 1,585 | $ (154)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 333 | (32)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 108 | (29)
Uncertain Tax Positions | (6) | (3)
Effective Income Tax Rate Reconciliation, Leasing Activities, Amount | (17) | 0
Effective Income Tax Rate Reconciliation, GPRC | (16) | (6)
Effective Tax Rate Reconciliation, Effective Tax Rate Adjustment | (23) | (12)
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (75) | (73)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | (6) | 3
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (35) | (120)
Income Tax Provision | $ 298 | $ (152)
Effective tax rate | 18.80% | 98.70%
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 | $ 541 | $ 598
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 114 | 126
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 38 | 41
Effective Income Tax Rate Reconciliation, GPRC | (16) | (6)
Effective Income Tax Rate Reconciliation, Tax Adjustment Credit, Amount | (75) | (73)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | (7) | 1
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (60) | (37)
Income Tax Provision | $ 54 | $ 89
Effective tax rate | 10.00% | 14.90%

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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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