Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Property, Plant And Equipment) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	$ 20,428	$ 18,445
Total Generation	11,153	10,648
Other	615	620
Total	32,196	29,713
PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	20,428	18,445
Total Generation	521	469
Other	154	157
Total	21,103	19,071
Power [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	0	0
Total Generation	10,632	10,179
Other	100	99
Total	10,732	10,278
Other [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	0	0
Total Generation	0	0
Other	361	364
Total	361	364
Electric Transmission [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	5,845	4,037
Electric Transmission [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	5,845	4,037
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	7,295	7,109
Electric Distribution [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	7,295	7,109
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	5,479	5,230
Gas Distribution [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	5,479	5,230
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	1,304	1,605
Total Generation	714	489
Construction Work In Progress [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	1,304	1,605
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	714	489
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	15	3
Plant Held For Future Use [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	15	3
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	401	372
Other Plant [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Transmission and Distribution	401	372
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	6,964	6,924
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	6,964	6,924
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	1,751	1,636
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	1,751	1,636
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	889	857
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	889	857
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	835	742
Other Production-Solar [Member] | PSE&G [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	521	469
Other Production-Solar [Member] | Power [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	314	273
Other Production-Solar [Member] | Other [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Total Generation	$ 0	$ 0