Other Income And Deductions (Schedule Of Other Deductions) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		$ 6	$ 8	$ 17	$ 14
Other		4	2	5	8
Total Other Deductions		10	10	22	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	1
Total Other Deductions		1	1	2	1
Power [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		6	8	17	14
Other		1	1	1	5
Total Other Deductions		7	9	18	19
Other Entities [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	[1]	0	0	0	0
Other	[1]	2	0	2	2
Total Other Deductions	[1]	$ 2	$ 0	$ 2	$ 2

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