Long-Term Investments (Schedule Of Long Term Investments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Long-Term Investments [Line Items]
Total Long-Term Investments	$ 1,313		$ 1,324
Dividends in equity method investments	11		17		3
Power [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	123		125
PSE&G [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	361		348
Life Insurance And Supplemental Benefits [Member] | PSE&G [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	158		161
Solar Loan Investments [Member] | PSE&G [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	196		180
Lease Investments [Member] | Energy Holdings [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	825		840
Partnerships And Corporate Joint Ventures [Member] | Power [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	123	[1]	125	[1]
Other Investments [Member] | PSE&G [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	7		7
Equity Method Investments [Member] | Partnerships And Corporate Joint Ventures [Member] | Energy Holdings [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	3	[1]	9	[1]
Cost Method Investments [Member] | Partnerships And Corporate Joint Ventures [Member] | Energy Holdings [Member]
Long-Term Investments [Line Items]
Total Long-Term Investments	$ 1	[2]	$ 2	[2]

[1] During the three years ended December 31, 2013, 2012 and 2011, the amount of dividends from these investments was $11 million, $17 million and $3 million, respectively.

[2] Reflects Energy Holdings' investments in certain companies in which it does not have the ability to exercise significant influence. Such investments are accounted for under the cost method.