Other Income And Deductions (Schedule Of Other Deductions) (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		$ 5	$ 13	$ 31	$ 30
Other		3	1	8	6
Total Other Deductions		8	14	39	36
PSE And G [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		0	0	0	0
Other		1	0	3	2
Total Other Deductions		1	0	3	2
Power [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses		5	13	31	30
Other		1	1	2	2
Total Other Deductions		6	14	33	32
Other Entities [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	[1]	0	0	0	0
Other	[1]	1	0	3	2
Total Other Deductions	[1]	$ 1	$ 0	$ 3	$ 2

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