Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income	$ 448	$ 700
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	8	21
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	(3)	(4)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	3	0
Other Comprehensive Income (Loss), net of tax	8	17
COMPREHENSIVE INCOME	456	717
Public Service Electric and Gas Company [Member]
Net Income	440	403
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	0	1
Other Comprehensive Income (Loss), net of tax	0	1
COMPREHENSIVE INCOME	440	404
PSEG Power [Member]
Net Income	13	296
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	7	16
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	2	0
Other Comprehensive Income (Loss), net of tax	9	16
COMPREHENSIVE INCOME	$ 22	$ 312