Selected Quarterly Data (Schedule Of Selected Quarterly Data) (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Revenues	$ 2,318		$ 2,554		$ 2,310		$ 2,786		$ 2,406		$ 2,402		$ 2,098		$ 2,875		$ 9,968	$ 9,781	$ 11,079
Operating Income (Loss)	365		712		612		610		468		594		433		783		2,299	2,278	2,742
Income (Loss) from Continuing Operations																	2,055	2,011	2,384
Income (Loss) on Discontinued Operations, net of tax																	0	0	96
Net Income (Loss)	200		390		333		320		224		347		211		493
Net Income (Loss)																	1,243	1,275	1,503
Basic	506,000		506,000		506,000		506,000		506,000		506,000		506,000		506,000		505,889	505,933	505,949
Diluted	508,000		508,000		507,000		507,000		507,000		507,000		507,000		507,000		507,525	507,086	506,982
Net Income (Loss)	$ 0.40		$ 0.77		$ 0.66		$ 0.63		$ 0.44		$ 0.69		$ 0.42		$ 0.97		$ 2.46	$ 2.52	$ 2.97
Net Income (Loss)	$ 0.39		$ 0.77		$ 0.66		$ 0.63		$ 0.44		$ 0.68		$ 0.42		$ 0.97		$ 2.45	$ 2.51	$ 2.96
Power [Member]
Operating Revenues	1,245	[1]	1,174	[1]	1,193	[1]	1,451	[1]	1,282	[1]	1,041	[1]	987	[1]	1,563	[1]	5,063	4,873	6,150
Operating Income (Loss)	107	[1]	370	[1]	351	[1]	242	[1]	216	[1]	268	[1]	198	[1]	441	[1]	1,070	1,123	1,773
Income (Loss) from Continuing Operations																	1,063	1,099	1,703
Income (Loss) on Discontinued Operations, net of tax																	0	0	96
Net Income (Loss)	67	[1]	226	[1]	210	[1]	141	[1]	113	[1]	187	[1]	109	[1]	257	[1]
Net Income (Loss)																	644	666	1,109
PSE&G [Member]
Operating Revenues	1,571		1,666		1,423		1,995		1,597		1,683		1,407		1,939		6,655	6,626	7,326
Operating Income (Loss)	271		346		253		365		193		321		227		342		1,235	1,083	1,151
Income (Loss) from Continuing Operations																	993	835	861
Net Income (Loss)	144		168		121		179		75		155		101		197
Net Income (Loss)																	$ 612	$ 528	$ 521

[1] Power's information has been restated for all periods presented to reflect the transfer of certain of Energy Holdings' equity investments to Power on December 31, 2013. For additional information see Note 1. Organization, Basis of Presentation and Summary of Significant Accounting Policies.