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Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Public Utility, Property, Plant and Equipment [Line Items] |  |
Other | $ 501 | $ 1,396
Total | 43,684 | 48,569
Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 38,588 | 36,300
Other | 1,807 | 1,739
Total | 38,588 | 36,300
Electric Transmission [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 15,544 | 14,075
Electric Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 10,223 | 9,622
Gas Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,818 | 9,081
Construction Work In Progress [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 177 | 248
Construction Work In Progress [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 1,196 | 1,783
Fossil Production [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 6,581
Nuclear Production [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 3,656 | 3,296
Nuclear Fuel [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | $ 762 | $ 748

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