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Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | $ 35,220 | $ 32,839
Total Generation | 12,442 | 12,269
Other | 907 | 836
Total | 48,569 | 45,944
Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 35,220 | 32,839
Total Generation | 658 | 663
Other | 422 | 398
Total | 36,300 | 33,900
PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 11,784 | 11,606
Other | 88 | 93
Total | 11,872 | 11,699
Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 0 | 0
Other | 397 | 345
Total | 397 | 345
Electric Transmission [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 14,075 | 12,908
Electric Transmission [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 14,075 | 12,908
Electric Transmission [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Electric Transmission [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Electric Distribution [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,622 | 9,255
Electric Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,622 | 9,255
Electric Distribution [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Electric Distribution [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Gas Distribution [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,081 | 8,430
Gas Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,081 | 8,430
Gas Distribution [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Gas Distribution [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Construction Work In Progress [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 1,783 | 1,607
Total Generation | 248 | 277
Construction Work In Progress [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 1,783 | 1,607
Total Generation | 0 | 0
Construction Work In Progress [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 248 | 277
Construction Work In Progress [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 0 | 0
Other Plant [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 659 | 639
Other Plant [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 659 | 639
Other Plant [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Other Plant [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Fossil Production [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 6,581 | 6,570
Fossil Production [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Fossil Production [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 6,581 | 6,570
Fossil Production [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Production [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 3,296 | 3,087
Nuclear Production [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Production [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 3,296 | 3,087
Nuclear Production [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Fuel In Service [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 748 | 761
Nuclear Fuel In Service [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Fuel In Service [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 748 | 761
Nuclear Fuel In Service [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Other Production-Solar [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 1,569 | 1,574
Other Production-Solar [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 658 | 663
Other Production-Solar [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 911 | 911
Other Production-Solar [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | $ 0 | $ 0

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