Schedule Of Consolidated Debt (Fair Value of Debt) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Debt Instrument [Line Items]
Long-term Debt	$ 9,144		$ 8,643
Long-term Debt, Fair Value	10,149		9,061
PSEG [Member]
Debt Instrument [Line Items]
Long-term Debt	14		24
Long-term Debt, Fair Value	22	[1]	38	[1]
Power [Member]
Debt Instrument [Line Items]
Long-term Debt	2,543		2,541
Long-term Debt, Fair Value	2,930	[2]	2,846	[2]
PSE&G
Debt Instrument [Line Items]
Long-term Debt	6,312		5,566
Long-term Debt, Fair Value	6,912	[2]	5,629	[2]
Transition Funding [Member]
Debt Instrument [Line Items]
Long-term Debt	251		476
Long-term Debt, Fair Value	261	[2]	511	[2]
Transition Funding II [Member]
Debt Instrument [Line Items]
Long-term Debt	8		20
Long-term Debt, Fair Value	8	[2]	21	[2]
Energy Holdings [Member]
Debt Instrument [Line Items]
Long-term Debt	16		16
Long-term Debt, Fair Value	$ 16	[3]	$ 16	[3]

[1] Fair value represents net offsets to debt resulting from adjustments from interest rate swaps entered into to hedge certain debt at Power. Carrying amount represents such fair value reduced by the unamortized premium resulting from a debt exchange entered into between Power and Energy Holdings.

[2] The debt fair valuation is based on the present value of each bond’s future cash flows. The discount rates used in the present value analysis are based on an estimate of new issue bond yields across the treasury curve. When a bond has embedded options, an interest rate model is used to reflect the impact of interest rate volatility into the analysis (primarily Level 2 measurements).

[3] Non-recourse project debt is valued as equivalent to the amortized cost and is classified as a Level 3 measurement.