Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020		Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Net Income (Loss)	$ 575	[1]	$ 403	$ 1,474	[1]	$ 1,256	[1]
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	(4)		10	24		49
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	4		1	4		(16)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	3		(17)	9		(13)
Other Comprehensive Income (Loss), net of tax	3		(6)	37		20
COMPREHENSIVE INCOME (LOSS)	578		397	1,511		1,276
Public Service Electric and Gas Company [Member]
Net Income (Loss)	313		344	1,036		974
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	0		1	1		3
Other Comprehensive Income (Loss), net of tax	0		1	1		3
COMPREHENSIVE INCOME (LOSS)	313		345	1,037		977
PSEG Power [Member]
Net Income (Loss)	254		53	437		309
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	(2)		7	20		38
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	2		(12)	7		(9)
Other Comprehensive Income (Loss), net of tax	0		(5)	27		29
COMPREHENSIVE INCOME (LOSS)	$ 254		$ 48	$ 464		$ 338

[1] Includes an after-tax gain of $86 million in the three months and nine months ended September 30, 2020 related to the sale of PSEG Power’s interest in the Yards Creek generation facility and an after-tax loss of $286 million in the nine months ended September 30, 2019 related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh fossil generation plants. See Item 1. Note 4. Early Plant Retirements/Asset Dispositions for additional information.