Other Income And Deductions (Schedule Of Other Income) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income	$ 219	$ 152	$ 194
Allowance for Funds Used During Construction	31	24	23
Solar Loan Interest	24	23	18
Other	(16)	(14)	(25)
Total Other Income	290	213	260
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	31	24	23
Solar Loan Interest	24	23	18
Other	(6)	(7)	(11)
Total Other Income	61	54	52
Power [Member]
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income	219	152	194
Allowance for Funds Used During Construction	0	0	0
Solar Loan Interest	0	0	0
Other	(3)	(2)	(7)
Total Other Income	222	154	201
Other [Member]
Components of Other Income [Roll Forward]
NDT Fund Gains, Interest, Dividend and Other Income	0	0	0
Allowance for Funds Used During Construction	0	0	0
Solar Loan Interest	0	0	0
Other	(7)	(5)	(7)
Total Other Income	$ 7	$ 5	$ 7