Other Income And Deductions (Schedule Of Other Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	$ 32		$ 47
Allowance for Funds Used During Construction	6		6
Solar Loan Interest	6		6
Other	4		2
Total Other Income	48		61
Power [Member]
Component of Other Income [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	32		47
Allowance for Funds Used During Construction	0		0
Solar Loan Interest	0		0
Other	1		0
Total Other Income	33		47
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	6		6
Solar Loan Interest	6		6
Other	2		1
Total Other Income	14		13
Other Segments [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.