Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income		$ 96	$ 138	$ 219
Allowance for Funds Used During Construction		49	48	31
Solar Loan Interest		22	23	24
Gain on Insurance Recovery			28
Other		24	17	16
Total Other Income		191	254	290
PSE&G [Member]
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income		0	0	0
Allowance for Funds Used During Construction		49	48	31
Solar Loan Interest		22	23	24
Gain on Insurance Recovery			0
Other		12	8	6
Total Other Income		83	79	61
Power [Member]
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income		96	138	219
Allowance for Funds Used During Construction		0	0	0
Solar Loan Interest		0	0	0
Gain on Insurance Recovery			28
Other		6	3	3
Total Other Income		102	169	222
Other [Member]
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income	[1]	0	0	0
Allowance for Funds Used During Construction	[1]	0	0	0
Solar Loan Interest	[1]	0	0	0
Gain on Insurance Recovery	[1]		0
Other	[1]	6	6	7
Total Other Income	[1]	$ 6	$ 6	$ 7

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