Income Taxes (Reconciliation Of Reported Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Income Taxes [Line Items]
Net Income	$ (648)	[1]	$ 1,905	[1]	$ 1,693
Federal	407		385		84
State	(3)		48		18
Total Current	404		433		102
Federal	(700)		(164)		3
State	(136)		141		132
Total Deferred	(836)		(23)		135
Investment tax credit	(9)		(14)		20
Total Income Tax	(441)		396		257
Pre-Tax Income	(1,089)		2,301		1,950
Tax Computed at Statutory Rate	(229)		483		410
State Income Taxes (net of federal income tax)	(109)		147		117
Uncertain Tax Positions	19		3		0
Nuclear Decommissioning Trust	23		32		34
Plant-Related Items	(7)		(9)		(2)
Effective Income Tax Rate Reconciliation, Tax Credit adjustment	29
Tax Credits			(18)		(18)
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount	(8)		(27)		0
Effective Income Tax Rate Reconciliation, Leasing Activities, Amount	(1)		(35)		0
Effective Income Tax Rate Reconciliation, GPRC	(13)		0		0
Tax Adjustment Credit	(171)		(205)		(272)
Effective Income Tax Rate Reconciliation, Bad Debt Flow Through, Amount	27		28		0
Other	(1)		(3)		(12)
Sub-Total	(212)		(87)		(153)
Income Tax Provision	$ (441)		$ 396		$ 257
Effective income tax rate	40.50%		17.20%		13.20%
Public Service Electric and Gas Company
Income Taxes [Line Items]
Net Income	$ 1,446		$ 1,327		$ 1,250
Federal	208		179		121
State	1		8		0
Total Current	209		187		121
Federal	(33)		(71)		(156)
State	153		128		117
Total Deferred	120		57		(39)
Investment tax credit	(5)		(4)		11
Total Income Tax	324		240		93
Pre-Tax Income	1,770		1,567		1,343
Tax Computed at Statutory Rate	372		329		282
State Income Taxes (net of federal income tax)	122		106		92
Uncertain Tax Positions	2		4		1
Plant-Related Items	(7)		(9)		(2)
Tax Credits	(8)		(9)		(8)
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount	(1)		(2)		0
Effective Income Tax Rate Reconciliation, GPRC	(13)		0		0
Tax Adjustment Credit	(171)		(205)		(272)
Effective Income Tax Rate Reconciliation, Bad Debt Flow Through, Amount	27		28		0
Other	1		(2)		0
Sub-Total	(48)		(89)		(189)
Income Tax Provision	$ 324		$ 240		$ 93
Effective income tax rate	18.30%		15.30%		6.90%

[1] Includes after-tax impairment losses and other charges, including debt extinguishment costs, related to the sale of the fossil generating assets at PSEG Power of $2,158 million in the year ended December 31, 2021. Includes an after-tax gain of $86 million in the year ended December 31, 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 year ended December 31, 2019 related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh fossil generation plants. See Note 4. Early Plant Retirements/Asset Dispositions and Impairments for additional information.(D)Includes net after-tax losses of $446 million and $58 million in the years ended December 31, 2021 and 2020 and a net after-tax gain of $205 million in the year ended December 31, 2019 at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consists of the financial impact from positions with future delivery dates.