Income Taxes (Schedule Of Effective Tax Rates) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
PSEG [Member]
Income Taxes [Line Items]
Effective tax rate	39.40%	37.00%	38.80%	37.80%
PSE And G [Member]
Income Taxes [Line Items]
Effective tax rate	38.20%	38.50%	38.70%	38.60%
Power [Member]
Income Taxes [Line Items]
Effective tax rate	40.30%	39.40%	38.60%	38.60%