Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		$ 25	$ 29
Allowance for Funds Used During Construction		11	10
Solar Loan Interest		6	6
Other		6	3
Total Other Income		48	48
PSE And G [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		0	0
Allowance for Funds Used During Construction		11	10
Solar Loan Interest		6	6
Other		3	2
Total Other Income		20	18
Power [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		25	29
Allowance for Funds Used During Construction		0	0
Solar Loan Interest		0	0
Other		1	0
Total Other Income		26	29
Other Entities [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		0	0
Allowance for Funds Used During Construction		0	0
Solar Loan Interest		0	0
Other		2	1
Total Other Income	[1]	$ 2	$ 1

[1] Other consists of activity at PSEG (as parent company), Energy Holdings, Services, PSEG LI and intercompany eliminations.