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Income Taxes (Description Of Income Tax Years By Material Jurisdictions) (Details) | 12 Months Ended
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Dec. 31, 2020
Federal [Member] | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2019
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 | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2011-2019
NEW JERSEY | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
NEW JERSEY | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2011-2019
PENNSYLVANIA | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2019
PENNSYLVANIA | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
PENNSYLVANIA | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2019
CONNECTICUT | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2016-2019
CONNECTICUT | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
CONNECTICUT | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
MARYLAND | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2019
MARYLAND | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
MARYLAND | Public Service Electric and Gas Company |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
NEW YORK | PSEG [Member] |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | 2017-2019
NEW YORK | PSEG Power LLC |
Income Taxes [Line Items] |
Income Tax Year Subject to Examination by Material Jurisdictions | N/A
NEW YORK | 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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