Income Taxes (Schedule Of Effective Tax Rates) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
PSEG (Parent) [Member]
Effective tax rate	43.10%	40.40%	42.00%	40.30%
Power [Member]
Effective tax rate	40.70%	39.60%	41.00%	40.30%
PSE&G [Member]
Effective tax rate	40.10%	39.50%	40.50%	38.40%