Income Taxes (Description Of Income Tax Years By Material Jurisdictions) (Details)	12 Months Ended
	Dec. 31, 2021
Federal [Member] | PSEG [Member]
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	2017-2020
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	2011-2020
NEW JERSEY | Public Service Electric and Gas Company
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	2011-2020
PENNSYLVANIA | PSEG [Member]
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	2017-2020
PENNSYLVANIA | Public Service Electric and Gas Company
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	2018-2020
CONNECTICUT | PSEG [Member]
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	2018-2020
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	2018-2020
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	2017-2020
NEW YORK | Public Service Electric and Gas Company
Income Taxes [Line Items]
Income Tax Year Subject to Examination by Material Jurisdictions	N/A