Schedule Of Consolidated Capital Stock (Consolidated Capital Stock) (Details) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Common Stock, Shares, outstanding	505,892,472	[1]	505,945,286	[1]
Common Stock, book value	$ 4,226	[1]	$ 4,222	[1]
Common stock available for issuance through PSEG's DRASPP, ESPP and various employee benefit plans	7,000,000
Preferred Stock [Member]
Common Stock, authorized	7,500,000
Preferred stock, par value	$ 100
Cumulative Preferred Stock [Member]
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) and the Employee Stock Purchase Plan (ESPP) in 2012 or 2011. Total authorized and unissued shares of common stock available for issuance through PSEG’s DRASPP, ESPP and various employee benefit plans amounted to 7 million shares as of December 31, 2012.