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Income Taxes (Description Of Income Tax Years By Material Jurisdictions) (Details) | 12 Months Ended
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Dec. 31, 2019
Federal [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2011-2018
Federal [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
Federal [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
New Jersey [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2011-2018
New Jersey [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
New Jersey [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2011-2018
Pennsylvania [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2015-2018
Pennsylvania [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
Pennsylvania [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2015-2018
Connecticut [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2016-2018
Connecticut [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
Connecticut [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
Maryland [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2016-2018
Maryland [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
Maryland [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
New York [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2018
New York [Member] | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
New York [Member] | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A

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