Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Accounts Receivable,allowances	$ 56		$ 56
Long Term Debt Current Fair Value			50
Common Stock, issued	533,556,660		533,556,660
Common Stock, outstanding	505,892,472	[1]	505,945,286	[1]
Common Stock, authorized	1,000,000,000		1,000,000,000
Treasury Stock, Shares	27,664,188		27,611,374
PSE&G [Member]
Accounts Receivable,allowances	$ 56		$ 56
Common Stock, issued	132,450,344		132,450,344
Common Stock, authorized	150,000,000		150,000,000
Treasury Stock, Shares	132,450,344		132,450,344

[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.