Other Income And Deductions (Schedule Of Other Deductions) (Details) (USD $) In Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Component of Other Income, Nonoperating [Line Items]
NDT Fund Realized Losses and Expenses	$ 10		$ 9		$ 32		$ 35
Other	1		0		7		2
Total Other Deductions	11		9		39		37
Power [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Realized Losses and Expenses	10		9		32		35
Other	0		0		5		1
Total Other Deductions	10		9		37		36
PSE&G [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Realized Losses and Expenses	0		0		0		0
Other	1		1		2		2
Total Other Deductions	1		1		2		2
Other Segments [Member]
Component of Other Income, Nonoperating [Line Items]
NDT Fund Realized Losses and Expenses	0	[1]	0	[1]	0	[1]	0	[1]
Other	0	[1]	(1)	[1]	0	[1]	(1)	[1]
Total Other Deductions	$ 0	[1]	$ (1)	[1]	$ 0	[1]	$ (1)	[1]

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