Regulatory Assets And Liabilities (Schedule Of Regulatory Assets and Liabilities) (Details) (USD $) In Millions, unless otherwise specified	2 Months Ended
	Mar. 31, 2014	Dec. 31, 2014		May 31, 2014	Apr. 18, 2014	Dec. 31, 2013
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets of Variable Interest Entities (VIEs)		$ 249				$ 0
Regulatory Assets, Current		323				243
Regulatory Assets, Noncurrent		3,192				2,612
Regulatory Assets Of Consolidated Variable Interest Entity Noncurrent		0				476
Regulatory Liability, Current		186				43
Regulatory Liabilities, Noncurrent		258				233
Regulatory Liabilities Of Consolidated Variable Interest Entity Noncurrent		39				11
PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets of Variable Interest Entities (VIEs)		249				0
Supplemental Request for WNC Carryover Deficiency Revenues Recovery		45
Approved CIP II revenues recovery		28
Approved SBC and NGC revenue recovery				400
Current BGSS rate per therm				0.54
Proposed BGSS rate per therm				0.45
Self Implementing Bill Credit per therm	0.25
True-up adjustment for Transmission Formula Rate Revenues		5
Request for Increased Transmission Revenues		182
Deferred Storm and Property Reserve Deficiency, Noncurrent		240
Request for RAC Recovery		86			66
Regulatory Assets, Current		323				243
Regulatory Assets Including Consolidated Variable Interest Entities, Current		572				243
Regulatory Assets, Noncurrent		3,192				2,612
Regulatory Assets Of Consolidated Variable Interest Entity Noncurrent		0				476
Total Noncurrent Regulatory Assets		3,192				3,088
Total Regulatory Assets		3,764				3,331
Regulatory Liability, Current		186				43
Regulatory Liabilities, Noncurrent		258				233
Regulatory Liabilities Of Consolidated Variable Interest Entity Noncurrent		39				11
Total Noncurrent Regulatory Liabilities		297				244
Total Regulatory Liabilities		483				287
Deferred Storm Capital Costs approved for future recovery		126
Stranded Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent		134	[1],[2]			11	[1],[2]
Gas Margin Adjustment Clause [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current		28	[1],[2]			0	[1],[2]
Deferred Income Taxes [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current		28				31
Overrecovered Gas and Electric Costs - BGSS and BGS [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current		80	[1],[2]			9	[1],[2]
Weather Normalization Clause [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current		31	[2]			0	[2]
FERC Formula Rate True-Up [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent		26	[1],[2]			0	[1],[2]
Other [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liability, Current		19				3
Regulatory Liabilities, Noncurrent		4				22
Electric Cost Of Removal [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent		133				137
Mark-To-Market Contracts [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities, Noncurrent		0				74
Non-Utility Generation Charge [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		0	[1],[2]			6	[1],[2]
Societal Benefits Charges (SBC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		0	[1],[2]			16	[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		13	[1],[2]			41	[1],[2]
Regulatory Assets, Noncurrent		134	[2]			151	[2]
Electric Cost Of Removal [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		91				23
Solar Pilot Recovery Charge (SPRC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		0	[1],[2]			12	[1],[2]
Capital Stimulus Undercollection [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		0	[1],[2]			3	[1],[2]
Weather Normalization Clause [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		0	[2]			20	[2]
New Jersey Clean Energy Program [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		142	[1],[2]			142	[1],[2]
Other [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		5				3
Regulatory Assets, Noncurrent		99				94
Stranded Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current		412	[2]			0	[2]
Regulatory Assets, Noncurrent		0	[1],[2]			701	[1],[2]
Manufactured Gas Plant (MGP) Remediation Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		434	[2]			445	[2]
Pension and Other Postretirement Benefit Costs [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		1,265				637
Deferred Income Taxes [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		473				444
Remediation Adjustment Charge (Other SBC) [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		164	[1],[2]			144	[1],[2]
Mark-To-Market Contracts [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		75				0
Unamortized Loss On Reacquired Debt And Debt Expense [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		74	[1]			81	[1]
Conditional Asset Retirement Obligation [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		138				123
Storm Damage Deferral [Member] | PSE&G [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Noncurrent		$ 245				$ 245

[1] Recovered/Refunded with interest.

[2] Recoverable/Refundable per specific rate order.