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Income Taxes (Interest And Penalties Related To Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Taxes [Line Items] |  |  |
Accumulated Interest and Penalties on Uncertain Tax Positions | $ 38 | $ 31 | $ 29
Public Service Electric and Gas Company |  |  |
Income Taxes [Line Items] |  |  |
Accumulated Interest and Penalties on Uncertain Tax Positions | $ 8 | $ 9 | $ 9

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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 + Details
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