Income Taxes (Schedule Of Effective Tax Rates) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
PSEG [Member]
Income Taxes [Line Items]
Effective tax rate	35.00%	34.80%	38.50%	38.40%
PSE And G [Member]
Income Taxes [Line Items]
Effective tax rate	38.40%	36.50%	39.00%	38.60%
Power [Member]
Income Taxes [Line Items]
Effective tax rate	30.30%	28.90%	37.90%	37.80%