Other Income And Deductions (Schedule Of Other Deductions) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	$ 4		$ 11		$ 18		$ 40
Other	5		1		13		14
Total Other Deductions	9		12		31		54
Power [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	4		11		18		40
Other	2		0		7		9
Total Other Deductions	6		11		25		49
PSE And G [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	0		0		0		0
Other	2		1		3		3
Total Other Deductions	2		1		3		3
Other Entity [Member]
Component of Other Deductions [Line Items]
NDT Fund Realized Losses and Expenses	0	[1]	0	[1]	0	[1]	0	[1]
Other	1	[1]	0	[1]	3	[1]	2	[1]
Total Other Deductions	$ 1	[1]	$ 0	[1]	$ 3	[1]	$ 2	[1]

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