Other Income And Deductions (Schedule Of Other Deductions) (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 Deductions [Line Items]
NDT Fund Realized Losses and Expenses		$ 8	$ 6	$ 26	$ 17
Other		2	4	5	5
Total Other Deductions		10	10	31	22
PSE And G [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		0	0	0	0
Other		1	1	2	2
Total Other Deductions		1	1	2	2
Power [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		8	6	26	17
Other		1	1	1	1
Total Other Deductions		9	7	27	18
Other Entities [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	[1]	0	0	0	0
Other	[1]	0	2	2	2
Total Other Deductions	[1]	$ 0	$ 2	$ 2	$ 2

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