Income Taxes (Possible Decrease In Total Unrecognized Tax Benefits Including Interest) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2013 PSEG [Member]	Dec. 31, 2012 Power [Member]	Dec. 31, 2013 PSE&G [Member]	Dec. 31, 2011 PSE&G [Member]
Possible Decrease in Total Unrecognized Tax Benefits including Interest	$ 97	$ 157	$ 71	$ 43	$ 11

The net amount of all increases and decreases in unrecognized tax benefits for the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Name:	us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration