Regulatory Assets And Liabilities (Schedule Of Regulatory Assets and Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	$ 243		$ 349
Regulatory Assets, Noncurrent	2,612		3,830
Regulatory Assets Of Consolidated Variable Interest Entity Noncurrent	476		713
Regulatory Liability, Current	43		67
Regulatory Liabilities, Noncurrent	233		209
Regulatory Liabilities Of Consolidated Variable Interest Entity Noncurrent	11		10
PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	243		349
Regulatory Assets, Noncurrent	2,612		3,830
Regulatory Assets Of Consolidated Variable Interest Entity Noncurrent	476		713
Total Noncurrent Regulatory Assets	3,088		4,543
Total Regulatory Assets	3,331		4,892
Regulatory Liability, Current	43		67
Regulatory Liabilities, Noncurrent	233		209
Regulatory Liabilities Of Consolidated Variable Interest Entity Noncurrent	11		10
Total Noncurrent Regulatory Liabilities	244		219
Total Regulatory Liabilities	287		286
Deferred Income Taxes [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current	31		32
Overrecovered Gas and Electric Costs - BGSS and BGS [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current	9	[1],[2]	21	[1],[2]
FERC Formula Rate True-Up [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current	0	[1],[2]	5	[1],[2]
Non-Utility Generation Charge [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current	0	[1],[2]	9	[1],[2]
Other [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current	3		0
Regulatory Liabilities, Noncurrent	33		13
Electric Cost Of Removal [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent	137		166
Mark-To-Market Contracts [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent	74		40
Non-Utility Generation Charge [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	6	[1],[2]	0	[1],[2]
Societal Benefits Charges (SBC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	16	[1],[2]	74	[1],[2]
Solar and EE Recovery Charge formerly RRC and currently Green Program Recovery Charges (GPRC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	41	[1],[2]	33	[1],[2]
Regulatory Assets, Noncurrent	151	[1]	142	[1]
Solar Pilot Revoery Charge (SPRC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	12	[1],[2]	14	[1],[2]
Capital Stimulus Undercollection [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	3	[1],[2]	34	[1],[2]
Weather Normalization Clause [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	20	[1]	30	[1]
Regulatory Assets, Noncurrent	0		27
New Jersey Clean Energy Program [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	142	[1],[2]	154	[1],[2]
Other [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	3		10
Regulatory Assets, Noncurrent	117		74
Stranded Costs To Be Recovered [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	701	[1],[2]	1,112	[1],[2]
Manufactured Gas Plant (MGP) Remediation Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	445	[1]	588	[1]
Pension and Other Postretirement Benefit Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	637		1,550
Deferred Income Taxes [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	444		405
Remediation Adjustment Charge (Other SBC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	144	[1],[2]	88	[1],[2]
Mark-To-Market Contracts [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	0		107
Unamortized Loss On Reacquired Debt And Debt Expense [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	81	[2]	89	[2]
Conditional Asset Retirement Obligation [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	123		110
Gas Margin Adjustment Clause [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	0	[1]	7	[1]
Storm Damage Deferral [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent	$ 245		$ 244

[1] Recoverable/Refundable per specific rate order.

[2] Recovered/Refunded with interest.