Schedule Of Consolidated Capital Stock (Consolidated Capital Stock) (Details) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Class of Stock [Line Items]
Common Stock, authorized	1,000,000,000		1,000,000,000
Common Stock, Shares, outstanding	505,836,592	[1]	505,857,262	[1]
Common Stock, book value	$ 4,241	[1]	$ 4,246	[1]
DRASPP, ESPP and various employee plans [Member]
Class of Stock [Line Items]
Common stock available for issuance through PSEG's DRASPP, ESPP and various employee benefit plans	7,000,000
PSE&G [Member]
Class of Stock [Line Items]
Common Stock, authorized	150,000,000		150,000,000
PSE&G [Member] | Preferred Stock [Member]
Class of Stock [Line Items]
Common Stock, authorized	7,500,000
Preferred stock, par value	$ 100
PSE&G [Member] | Cumulative Preferred Stock [Member]
Class of Stock [Line Items]
Common Stock, authorized	10,000,000
Preferred stock, par value	$ 25

[1] PSEG did not issue any new shares under the Dividend Reinvestment and Stock Purchase Plan (DRASPP) or the Employee Stock Purchase Plan (ESPP) in 2014 or 2013. Total authorized and unissued shares of common stock available for issuance through PSEG’s DRASPP, ESPP and various employee benefit plans amounted to approximately 7 million shares as of December 31, 2014.