Asset Retirement Obligations (AROs) (Impact Of The Revisions On Asset Retirement Obligation) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
PSEG [Member]
ARO Liability, Beginning Balance	$ 627		$ 489
Liabilities Settled	(5)		(5)
Liabilities Incurred	17		11
Accretion Expense	23		21
Accretion Expense Deferred and Recovered in Rate Base	15	[1]	14	[1]
Revision to Present Values of Estimated Cash Flows			97
ARO Liability, Ending Balance	677		627
Power [Member]
ARO Liability, Beginning Balance	374		261
Liabilities Settled	(1)		(1)
Liabilities Incurred	4		4
Accretion Expense	23		21		18
Accretion Expense Deferred and Recovered in Rate Base	0	[1]	0	[1]
Revision to Present Values of Estimated Cash Flows			89
ARO Liability, Ending Balance	400		374		261
PSE&G [Member]
ARO Liability, Beginning Balance	250		226
Liabilities Settled	(4)		(5)
Liabilities Incurred	13		7
Accretion Expense	0		0
Accretion Expense Deferred and Recovered in Rate Base	15	[1]	14	[1]
Revision to Present Values of Estimated Cash Flows			8
ARO Liability, Ending Balance	274		250
Other [Member]
ARO Liability, Beginning Balance	3		2
Liabilities Settled	0		1
Liabilities Incurred	0		0
Accretion Expense	0		0
Accretion Expense Deferred and Recovered in Rate Base			0	[1]
Revision to Present Values of Estimated Cash Flows	0	[1]	0
ARO Liability, Ending Balance	$ 3		$ 3

[1] Not reflected as expense in Consolidated Statements of Operations