Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		$ 21	$ 24	$ 69	$ 78
Allowance for Funds Used During Construction		14	14	35	36
Solar Loan Interest		6	6	17	18
Gain on Insurance Recovery					28
Other		6	3	18	11
Total Other Income		47	47	139	171
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		14	14	35	36
Solar Loan Interest		6	6	17	18
Gain on Insurance Recovery					0
Other		2	2	9	5
Total Other Income		22	22	61	59
Power [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income		21	24	69	78
Allowance for Funds Used During Construction		0	0	0	0
Solar Loan Interest		0	0	0	0
Gain on Insurance Recovery					28
Other		2	1	5	3
Total Other Income		23	25	74	109
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
Other	[1]	2	0	4	3
Total Other Income	[1]	$ 2	$ 0	$ 4	$ 3

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