Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Public Utility, Property, Plant and Equipment [Line Items]
Other	$ 358	$ 377
Total	48,603	45,924
Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Other	1,992	1,915
Total	43,753	41,045
Electric Transmission [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	17,379	16,393
Electric Distribution [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	11,554	10,785
Gas Distribution [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	11,545	10,616
Construction Work In Progress [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	224	177
Construction Work In Progress [Member] | Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	1,283	1,336
Nuclear Production [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	3,496	3,567
Nuclear Fuel [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	$ 772	$ 758