Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Income	$ 153	$ 269	$ 853	$ 827
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	18	(5)	39	(19)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	(13)	(1)	(17)	(1)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	4	7	4	15
Other Comprehensive Income (Loss), net of tax	9	1	26	(5)
COMPREHENSIVE INCOME	162	270	879	822
Public Service Electric and Gas Company [Member]
Net Income	227	231	630	550
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	1	1	2	0
Other Comprehensive Income (Loss), net of tax	1	1	2	0
COMPREHENSIVE INCOME	228	232	632	550
PSEG Power [Member]
Net Income	(40)	41	256	275
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	15	(4)	31	(15)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	3	6	3	12
Other Comprehensive Income (Loss), net of tax	18	2	34	(3)
COMPREHENSIVE INCOME	$ (22)	$ 43	$ 290	$ 272