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Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Components of Other Income [Roll Forward]      
NDT Fund Gains, Interest, Dividend and Other Income $ 138 $ 219 $ 152
Allowance for Funds Used During Construction 48 31 24
Solar Loan Interest 23 24 23
Insured Event, Gain (Loss) 28    
Other (17) (16) (14)
Total Other Income 254 290 213
PSE&G [Member]      
Components of Other Income [Roll Forward]      
NDT Fund Gains, Interest, Dividend and Other Income 0 0 0
Allowance for Funds Used During Construction 48 31 24
Solar Loan Interest 23 24 23
Insured Event, Gain (Loss) 0    
Other (8) (6) (7)
Total Other Income 79 61 54
Power [Member]      
Components of Other Income [Roll Forward]      
NDT Fund Gains, Interest, Dividend and Other Income 138 219 152
Allowance for Funds Used During Construction 0 0 0
Solar Loan Interest 0 0 0
Insured Event, Gain (Loss) 28    
Other (3) (3) (2)
Total Other Income 169 222 154
Other [Member]      
Components of Other Income [Roll Forward]      
NDT Fund Gains, Interest, Dividend and Other Income 0 0 0
Allowance for Funds Used During Construction 0 0 0
Solar Loan Interest 0 0 0
Insured Event, Gain (Loss) 0    
Other (6) (7) (5)
Total Other Income $ 6 $ 7 $ 5