Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	$ (12)	$ (12)	$ (18)	$ (25)
Unrealized Gains (Losses) on Cash Flow Hedges, Tax	(1)	5	0	6
Pension/OPEB adjustment, tax	(1)	(2)	(2)	(6)
Public Service Electric and Gas Company [Member]
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	(1)	(1)	(1)	(1)
PSEG Power [Member]
Unrealized Gains (Losses) on Available-for-Sale Securities, tax	(12)	(11)	(16)	(22)
Pension/OPEB adjustment, tax	$ 0	$ (1)	$ (1)	$ (5)