Other Income And Deductions (Schedule Of Other Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	$ 29		$ 32
Allowance for Funds Used During Construction	10		6
Solar Loan Interest	6		6
Other	3		4
Total Other Income	48		48
PSE And G [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	0		0
Allowance for Funds Used During Construction	10		6
Solar Loan Interest	6		6
Other	2		2
Total Other Income	18		14
Power [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	29		32
Allowance for Funds Used During Construction	0		0
Solar Loan Interest	0		0
Other	0		1
Total Other Income	29		33
Other Entities [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	0	[1]	0	[1]
Allowance for Funds Used During Construction	0	[1]	0	[1]
Solar Loan Interest	0	[1]	0	[1]
Other	1	[1]	1	[1]
Total Other Income	$ 1	[1]	$ 1	[1]

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