Income Taxes (Schedule Of Effective Tax Rates) (Detail)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
PSEG [Member]
Income Taxes [Line Items]
Effective tax rate	37.50%	40.50%
PSE And G [Member]
Income Taxes [Line Items]
Effective tax rate	36.60%	39.40%
Power [Member]
Income Taxes [Line Items]
Effective tax rate	40.20%	41.10%