Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net Income (Loss)	$ (2)	$ 648
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	(61)	(42)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	1	1
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	0	3
Other Comprehensive Income (Loss), net of tax	(60)	(38)
COMPREHENSIVE INCOME (LOSS)	(62)	610
Public Service Electric and Gas Company [Member]
Net Income (Loss)	509	477
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	(3)	(3)
Other Comprehensive Income (Loss), net of tax	(3)	(3)
COMPREHENSIVE INCOME (LOSS)	$ 506	$ 474