Schedule Of Consolidated Debt (Short-Term Liquidity) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Short-term Debt [Line Items]
Usage	$ 251
Available Liquidity	4,049
Line of Credit Facility, Maximum Borrowing Capacity	4,300
Commitments of single institution as percentage of total commitments	8.00%
PSEG [Member]
Short-term Debt [Line Items]
Usage	8
Available Liquidity	992
Line of Credit Facility, Maximum Borrowing Capacity	1,000
Power [Member]
Short-term Debt [Line Items]
Usage	170
Available Liquidity	2,530
Line of Credit Facility, Maximum Borrowing Capacity	2,700
PSE&G [Member]
Short-term Debt [Line Items]
Usage	73
Available Liquidity	527
Line of Credit Facility, Maximum Borrowing Capacity	600
Five Year Credit Facility Maturing on March 2018 Capacity through April 2016 [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,100
5-year Credit Facility, Mar 2017 [Member] | PSEG [Member]
Short-term Debt [Line Items]
Usage	8	[1]
Available Liquidity	492
Line of Credit Facility, Maximum Borrowing Capacity	500
Expiration Date	Mar 2017
5-year Credit Facility, Mar 2017 [Member] | Power [Member]
Short-term Debt [Line Items]
Usage	70	[1]
Available Liquidity	1,530
Line of Credit Facility, Maximum Borrowing Capacity	1,600
Expiration Date	Mar 2017
Five Year Credit Facility Maturing on March 2018 [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,000
Credit Facility Reduction in April 2016	100	[2]
Five Year Credit Facility Maturing on March 2018 [Member] | PSEG [Member]
Short-term Debt [Line Items]
Usage	0
Available Liquidity	500
Line of Credit Facility, Maximum Borrowing Capacity	500	[3]
Expiration Date	Mar 2018
Credit Facility Reduction in April 2016	23	[2]
Five Year Credit Facility Maturing on March 2018 [Member] | Power [Member]
Short-term Debt [Line Items]
Usage	0
Available Liquidity	1,000
Line of Credit Facility, Maximum Borrowing Capacity	1,000	[2]
Expiration Date	Mar 2018
Credit Facility Reduction in April 2016	48	[2]
Five Year Credit Facility Maturing on March 2018 [Member] | PSE&G [Member]
Short-term Debt [Line Items]
Usage	73	[1]
Available Liquidity	527
Line of Credit Facility, Maximum Borrowing Capacity	600	[4]
Expiration Date	Mar 2018
Credit Facility Reduction in April 2016	29	[2]
Bilateral Credit Facility [Member] | Power [Member]
Short-term Debt [Line Items]
Usage	100	[1]
Available Liquidity	0
Line of Credit Facility, Maximum Borrowing Capacity	$ 100
Expiration Date	Sept 2015

[1] Includes amounts related to letters of credit outstanding.

[2] In April 2016, this facility will be reduced by $48 million.

[3] In April 2016, this facility will be reduced by $23 million.

[4] In April 2016, this facility will be reduced by $29 million.