Other Income And Deductions (Schedule Of Other Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Component of Other Income, Nonoperating [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	$ 45		$ 103		$ 125		$ 167
Allowance for Funds Used During Construction	5		6		17		17
Solar Loan Interest	7		5		18		13
Other	2		7		12		19
Total Other Income	59		121		172		216
Power [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	45		103		125		167
Allowance for Funds Used During Construction	0		0		0		0
Solar Loan Interest	0		0		0		0
Other	0		1		2		4
Total Other Income	45		104		127		171
PSE And G [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	0		0		0		0
Allowance for Funds Used During Construction	5		6		17		17
Solar Loan Interest	7		5		18		13
Other	1		5		6		9
Total Other Income	13		16		41		39
Other Segments [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Gains, Interest, Dividend and Other Income	0	[1]	0	[1]	0	[1]	0	[1]
Allowance for Funds Used During Construction	0	[1]	0	[1]	0	[1]	0	[1]
Solar Loan Interest	0	[1]	0	[1]	0	[1]	0	[1]
Other	1	[1]	1	[1]	4	[1]	6	[1]
Total Other Income	$ 1	[1]	$ 1	[1]	$ 4	[1]	$ 6	[1]

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