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Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | $ 32,839 | $ 30,628
Total Generation | 12,269 | 12,744
Other | 836 | 829
Total | 45,944 | 44,201
Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 32,839 | 30,628
Total Generation | 663 | 623
Other | 398 | 382
Total | 33,900 | 31,633
PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 11,606 | 12,121
Other | 93 | 103
Total | 11,699 | 12,224
Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 0 | 0
Other | 345 | 344
Total | 345 | 344
Electric Transmission [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 12,908 | 11,991
Electric Transmission [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 12,908 | 11,991
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 | 9,255 | 8,989
Electric Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,255 | 8,989
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 | 8,430 | 7,854
Gas Distribution [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 8,430 | 7,854
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 | 1,607 | 1,170
Total Generation | 277 | 1,011
Construction Work In Progress [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 1,607 | 1,170
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 | 277 | 1,011
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 | 639 | 624
Other Plant [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 639 | 624
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 | 6,570 | 6,541
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 | 6,570 | 6,541
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 | 3,087 | 2,971
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 | 3,087 | 2,971
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 | 761 | 765
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 | 761 | 765
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 | 1,574 | 1,456
Other Production-Solar [Member] | Public Service Electric and Gas Company |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 663 | 623
Other Production-Solar [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 911 | 833
Other Production-Solar [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | $ 0
Other Production-Solar [Member] | PSEG Power LLC |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Net Book value of two California solar facilities | $ 55 |

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