Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Public Utility, Property, Plant and Equipment [Line Items]
Other	$ 377	$ 501
Total	45,924	43,684
Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Other	1,915	1,807
Total	41,045	38,588
Electric Transmission [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	16,393	15,544
Electric Distribution [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	10,785	10,223
Gas Distribution [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	10,616	9,818
Construction Work In Progress [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	177	177
Construction Work In Progress [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	1,336	1,196
Nuclear Production [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	3,567	3,656
Nuclear Fuel [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	$ 758	$ 762