Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	$ 30,628	$ 28,249
Total Generation	12,744	12,250
Other	829	732
Total	44,201	41,231
PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	30,628	28,249
Total Generation	623	593
Other	382	275
Total	31,633	29,117
Power [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	0	0
Total Generation	12,121	11,657
Other	103	98
Total	12,224	11,755
Other [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	0	0
Total Generation	0	0
Other	344	359
Total	344	359
Electric Transmission [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	11,991	10,425
Electric Transmission [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	11,991	10,425
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	8,989	8,455
Electric Distribution [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	8,989	8,455
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 Distribution [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	7,854	7,122
Gas Distribution [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	7,854	7,122
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	1,170	1,735
Total Generation	1,011	2,339
Construction Work In Progress [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	1,170	1,735
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	1,011	2,339
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	624	512
Other Plant [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	624	512
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	6,541	4,923
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	6,541	4,923
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	2,971	2,893
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	2,971	2,893
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	765	745
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	765	745
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	1,456	1,350
Other Production-Solar [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	623	593
Other Production-Solar [Member] | Power [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	833	757
Other Production-Solar [Member] | Other [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	$ 0	$ 0