Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	$ (12)	$ 4	$ (25)	$ 13
Unrealized Gains (Losses) on Cash Flow Hedges, Tax	5	1	6	1
Pension/OPEB adjustment, tax	(2)	(3)	(6)	(6)
Public Service Electric and Gas Company [Member]
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	(1)	0	(1)	0
PSEG Power [Member]
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	(11)	3	(22)	11
Pension/OPEB adjustment, tax	$ (1)	$ (2)	$ (5)	$ (5)