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Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | $ 25,523 | $ 22,967
Total Generation | 13,156 | 11,842
Other | 658 | 685
Total | 39,337 | 35,494
PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 25,523 | 22,967
Total Generation | 591 | 569
Other | 233 | 196
Total | 26,347 | 23,732
Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 12,565 | 11,273
Other | 90 | 81
Total | 12,655 | 11,354
Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 0 | 0
Other | 335 | 408
Total | 335 | 408
Electric Transmission [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,132 | 7,554
Electric Transmission [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 9,132 | 7,554
Electric Transmission [Member] | Power [Member] |  |
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 | 7,974 | 7,553
Electric Distribution [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 7,974 | 7,553
Electric Distribution [Member] | Power [Member] |  |
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 Transmission [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 89 | 89
Gas Transmission [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 89 | 89
Gas Transmission [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Gas Transmission [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 | 6,369 | 5,875
Gas Distribution [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 6,369 | 5,875
Gas Distribution [Member] | Power [Member] |  |
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 | 1,501 | 1,459
Total Generation | 1,483 | 892
Construction Work In Progress [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 1,501 | 1,459
Total Generation | 0 | 0
Construction Work In Progress [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Total Generation | 1,483 | 892
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
Plant Held For Future Use [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 19 | 26
Plant Held For Future Use [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 19 | 26
Plant Held For Future Use [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Plant Held For Future Use [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 0 | 0
Other Plant [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 439 | 411
Other Plant [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Transmission and Distribution | 439 | 411
Other Plant [Member] | Power [Member] |  |
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 | 7,096 | 7,005
Fossil Production [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Fossil Production [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 7,096 | 7,005
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 | 2,516 | 2,202
Nuclear Production [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Production [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 2,516 | 2,202
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 | 783 | 785
Nuclear Fuel In Service [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 0 | 0
Nuclear Fuel In Service [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 783 | 785
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 | 1,278 | 958
Other Production-Solar [Member] | PSE&G [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 591 | 569
Other Production-Solar [Member] | Power [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | 687 | 389
Other Production-Solar [Member] | Other [Member] |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total Generation | $ 0 | $ 0

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