Income Taxes (Reconciliation Of Reported Income Tax Expense) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
Net Income (Loss)	[1]	$ 1,031	$ (648)	$ 1,905
Federal		262	407	385
State		(30)	(3)	48
Total Current		232	404	433
Federal		(335)	(700)	(164)
State		80	(136)	141
Total Deferred		(255)	(836)	(23)
Investment tax credit		(6)	(9)	(14)
Total Income Tax		(29)	(441)	396
Pre-Tax Income		1,002	(1,089)	2,301
Tax Computed at Statutory Rate		210	(229)	483
State Income Taxes (net of federal income tax)		41	(109)	147
Uncertain Tax Positions		(22)	19	3
Nuclear Decommissioning Trust		(22)	23	32
Plant-Related Items		(6)	(7)	(9)
Effective Income Tax Rate Reconciliation, Tax Credit adjustment			29
Tax Credits		(10)		(18)
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount		0	(8)	(27)
Effective Income Tax Rate Reconciliation, Leasing Activities, Amount		0	(1)	(35)
Effective Income Tax Rate Reconciliation, GPRC		(37)	(13)	0
Tax Adjustment Credit		(193)	(171)	(205)
Effective Income Tax Rate Reconciliation, Bad Debt Flow Through, Amount		(1)	27	28
Other		11	(1)	(3)
Sub-Total		(239)	(212)	(87)
Income Tax Provision		$ (29)	$ (441)	$ 396
Effective income tax rate		(2.90%)	40.50%	17.20%
Public Service Electric and Gas Company
Income Taxes [Line Items]
Net Income (Loss)		$ 1,565	$ 1,446	$ 1,327
Federal		130	208	179
State		0	1	8
Total Current		130	209	187
Federal		(17)	(33)	(71)
State		159	153	128
Total Deferred		142	120	57
Investment tax credit		(5)	(5)	(4)
Total Income Tax		267	324	240
Pre-Tax Income		1,832	1,770	1,567
Tax Computed at Statutory Rate		385	372	329
State Income Taxes (net of federal income tax)		126	122	106
Uncertain Tax Positions		2	2	4
Plant-Related Items		(6)	(7)	(9)
Tax Credits		(9)	(8)	(9)
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount		0	(1)	(2)
Effective Income Tax Rate Reconciliation, GPRC		(37)	(13)	0
Tax Adjustment Credit		(193)	(171)	(205)
Effective Income Tax Rate Reconciliation, Bad Debt Flow Through, Amount		(1)	27	28
Other		0	1	(2)
Sub-Total		(118)	(48)	(89)
Income Tax Provision		$ 267	$ 324	$ 240
Effective income tax rate		14.60%	18.30%	15.30%

[1] Include after-tax impairments of $92 million related to certain Energy Holdings investments and additional adjustments related to the sale of PSEG Power’s fossil generation assets in the year ended December 31, 2022. 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. See Note 4. Early Plant Retirements/Asset Dispositions and Impairments for additional information.(C)Includes net after-tax losses of $457 million, $446 million and $58 million in the years ended December 31, 2022, 2021 and 2020, respectively 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.