Consolidated Statements Of Stockholders' Equity (USD $) In Millions, unless otherwise specified	Total	Common Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Power [Member]	Power [Member] Contributed Capital [Member]	Power [Member] Basis Adjustment [Member]	Power [Member] Retained Earnings [Member]	Power [Member] Accumulated Other Comprehensive Income (Loss) [Member]	PSE&G [Member]	PSE&G [Member] Common Stock [Member]	PSE&G [Member] Contributed Capital [Member]	PSE&G [Member] Basis Adjustment [Member]	PSE&G [Member] Retained Earnings [Member]	PSE&G [Member] Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance (in value) at Dec. 31, 2010	$ 9,641	$ 4,807	$ (593)	$ 5,575	$ (156)	$ 8	$ 5,143	$ 2,115	$ (986)	$ 4,109	$ (95)	$ 4,424	$ 892	$ 420	$ 986	$ 2,126	$ 0
Beginning Balance, shares at Dec. 31, 2010		534	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,503			1,503			1,109			1,109		521				521
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	(181)				(181)	0	(181)				(181)	2					2
Comprehensive Income	1,322						928					523
Contributed Capital							6	6				0
Cash Dividends on Common Stock	(693)			(693)	0	0	(511)			(511)		(300)				(300)
Noncontrolling Interest in Losses of Consolidated Entity	(6)					(6)
Other	8	16	(8)	0	0	0
Ending Balance (in value) at Dec. 31, 2011	10,272	4,823	(601)	6,385	(337)	2	5,566	2,121	(986)	4,707	(276)	4,647	892	420	986	2,347	2
Ending Balance, shares at Dec. 31, 2011		534	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,275			1,275			666			666		528				528
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	(51)				(51)		(52)				(52)	0					0
Comprehensive Income	1,224						614					528
Contributed Capital							69	69				0
Cash Dividends on Common Stock	(718)			(718)			(619)			(619)
Noncontrolling Interest in Losses of Consolidated Entity	(1)					(1)
Other	4	10	(6)
Ending Balance (in value) at Dec. 31, 2012	10,781	4,833	(607)	6,942	(388)	1	5,630	2,190	(986)	4,754	(328)	5,175	892	420	986	2,875	2
Ending Balance, shares at Dec. 31, 2012		534	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,243			1,243			644			644		612				612
Other Comprehensive Income (Loss), net of tax
Other Comprehensive Income (Loss), net of tax	293				293		265				265	(1)					(1)
Comprehensive Income	1,536						909					611
Contributed Capital							24	24				100		100
Cash Dividends on Common Stock	(728)			(728)			(705)			(705)
Other	20	28	(8)
Ending Balance (in value) at Dec. 31, 2013	$ 11,609	$ 4,861	$ (615)	$ 7,457	$ (95)	$ 1	$ 5,858	$ 2,214	$ (986)	$ 4,693	$ (63)	$ 5,886	$ 892	$ 520	$ 986	$ 3,487	$ 1
Ending Balance, shares at Dec. 31, 2013		534	(28)