Other Income And Deductions (Schedule Of Other Deductions) (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		$ 13	$ 4	$ 30	$ 18
Other		1	5	6	13
Total Other Deductions		14	9	36	31
PSE And G [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		0	0	0	0
Other		0	2	2	3
Total Other Deductions		0	2	2	3
Power [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		13	4	30	18
Other		1	2	2	7
Total Other Deductions		14	6	32	25
Other Entities [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	[1]	0	0	0	0
Other	[1]	0	1	2	3
Total Other Deductions	[1]	$ 0	$ 1	$ 2	$ 3

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