Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		$ 23	$ 25	$ 48	$ 54
Allowance for Funds Used During Construction		10	12	21	22
Solar Loan Interest		5	6	11	12
Gain on Insurance Recovery			28		28
Other		6	5	12	8
Total Other Income		44	76	92	124
PSE And G [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		0	0	0	0
Allowance for Funds Used During Construction		10	12	21	22
Solar Loan Interest		5	6	11	12
Gain on Insurance Recovery			0		0
Other		4	1	7	3
Total Other Income		19	19	39	37
Power [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		23	25	48	54
Allowance for Funds Used During Construction		0	0	0	0
Solar Loan Interest		0	0	0	0
Gain on Insurance Recovery			28		28
Other		2	2	3	2
Total Other Income		25	55	51	84
Other Entities [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	[1]	0	0	0	0
Allowance for Funds Used During Construction	[1]	0	0	0	0
Solar Loan Interest	[1]	0	0	0	0
Gain on Insurance Recovery	[1]		0		0
Other	[1]	0	2	2	3
Total Other Income	[1]	$ 0	$ 2	$ 2	$ 3

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