Other Income And Deductions (Schedule Of Other Deductions) (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Components of Other Deductions [Roll Forward]
NDT Fund Realized Losses and Expenses		$ 45	$ 31	$ 34
Other		57	30	20
Total Other Deductions		102	61	54
PSE&G [Member]
Components of Other Deductions [Roll Forward]
NDT Fund Realized Losses and Expenses		0	0	0
Other		4	3	3
Total Other Deductions		4	3	3
Power [Member]
Components of Other Deductions [Roll Forward]
NDT Fund Realized Losses and Expenses		45	31	34
Other		27	21	15
Total Other Deductions		72	52	49
Other [Member]
Components of Other Deductions [Roll Forward]
NDT Fund Realized Losses and Expenses	[1]	0	0	0
Other	[1]	26	6	2
Total Other Deductions	[1]	$ 26	$ 6	$ 2

[1] Other consists of activity at PSEG (as parent company), Energy Holdings, Services, PSEG LI and intercompany eliminations.