Related-Party Transactions (Schedule Of Related Party Transactions, Payables) (Detail) (PSE And G [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
PSE And G [Member]
Payable to Power through BGS and BGSS Contracts	$ (234)	[1]	$ (267)	[1]
Receivable from (Payable to) Services	(53)	[2]	(73)	[2]
Receivable from PSEG	(6)	[3]	150	[3]
Accounts Receivable (Payable) - Affiliated Companies, net	(293)		(190)
Working Capital Advances to Services	33	[4]	33	[4]
Long-Term Accrued Taxes Receivable (Payable)	$ (82)		$ (72)

[1] PSE&G has entered into a requirements contract with Power under which Power provides the gas supply services needed to meet PSE&G’s BGSS and other contractual requirements. Power has also entered into contracts to supply energy, capacity and ancillary services to PSE&G through the BGS auction process.

[2] Services provides and bills administrative services to Power and PSE&G at cost. In addition, Power and PSE&G have other payables to Services, including amounts related to certain common costs, such as pension and OPEB costs, which Services pays on behalf of each of the operating companies.

[3] PSEG files a consolidated federal income tax return with its affiliated companies. A tax allocation agreement exists between PSEG and each of its affiliated companies. The general operation of these agreements is that the subsidiary company will compute its taxable income on a stand-alone basis. If the result is a net tax liability, such amount shall be paid to PSEG. If there are net operating losses and/or tax credits, the subsidiary shall receive payment for the tax savings from PSEG to the extent that PSEG is able to utilize those benefits.

[4] Power and PSE&G have advanced working capital to Services. The amounts are included in Other Noncurrent Assets on Power’s and PSE&G’s Condensed Consolidated Balance Sheets.