Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net Income	$ 1,574	$ 887	$ 1,679
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit for the years ended	44	42	(27)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit for the years ended	(2)	2	(10)
Pension/OPEB adjustment, net of tax (expense) benefit for the years ended	(8)	(12)	25
Other Comprehensive Income (Loss), net of tax	34	32	(12)
Comprehensive Income	1,608	919	1,667
PSE&G [Member]
Net Income	973	889	787
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit for the years ended	(1)	0	(1)
Other Comprehensive Income (Loss), net of tax	(1)	0	(1)
Comprehensive Income	972	889	786
Power [Member]
Net Income	479	18	856
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit for the years ended	46	42	(25)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit for the years ended	0	0	(11)
Pension/OPEB adjustment, net of tax (expense) benefit for the years ended	(7)	(13)	24
Other Comprehensive Income (Loss), net of tax	39	29	(12)
Comprehensive Income	$ 518	$ 47	$ 844