Valuation And Qualifying Accounts (Schedule Of Valuation And Qualifying Accounts) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
PSEG [Member] | Allowance For Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 56		$ 56		$ 68
Additions, Charged to cost and expenses	90		96		102
Additions, Charged to other accounts-describe	0		0		0
Deductions-describe	90	[1]	96	[1]	114	[1]
Balance at End of Period	56		56		56
PSEG [Member] | Materials And Supplies Valuation Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	22		3		4
Additions, Charged to cost and expenses	2		21		2
Additions, Charged to other accounts-describe	0		0		0
Deductions-describe	16	[2]	2	[2]	3	[2]
Balance at End of Period	8		22		3
Power [Member] | Materials And Supplies Valuation Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	22		3		4
Additions, Charged to cost and expenses	2		21		2
Additions, Charged to other accounts-describe	0		0		0
Deductions-describe	16	[2]	2	[2]	3	[2]
Balance at End of Period	8		22		3
PSE&G [Member] | Allowance For Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	56		56		67
Additions, Charged to cost and expenses	90		96		102
Additions, Charged to other accounts-describe	0		0		0
Deductions-describe	90	[1]	96	[1]	113	[1]
Balance at End of Period	$ 56		$ 56		$ 56

[1] Accounts Receivable written off.

[2] Reduced reserve to appropriate level and to remove obsolete inventory.