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Changes In Capitalization (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended 6 Months Ended
Apr. 30, 2011
Power [Member]
7.75% Senior Notes Maturity in April 2011 [Member]
Jun. 30, 2011
Power [Member]
Jun. 30, 2011
PSE&G [Member]
Jun. 30, 2011
Energy Holdings [Member]
Cash dividend paid   $ 350    
Payments of Transition Fundings' securitization debt     91  
Payments of Transition Fundings II's securitization debt     5  
Payment of nonrecourse project debt       1
Payment of senior debt $ 606      
Debt instrument maturity period April 2011      
Stated interest rate of debt instrument 7.75%