Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 17	$ 18	$ 47	$ 45
Allowance for Funds Used During Construction		17	16	47	58
Solar Loan Interest		2	3	8	10
Purchase of Tax Losses				(27)	(19)
Other		7	(2)	11	(1)
Other Income (Deductions)		43	35	86	93
Public Service Electric and Gas Company [Member]
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		0	0	0	0
Allowance for Funds Used During Construction		17	16	47	58
Solar Loan Interest		2	3	8	10
Purchase of Tax Losses				0	0
Other		6	1	11	4
Other Income (Deductions)		25	20	66	72
Other Entities [Member]
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	17	18	47	45
Allowance for Funds Used During Construction	[1]	0	0	0	0
Solar Loan Interest	[1]	0	0	0	0
Purchase of Tax Losses	[1]			(27)	(19)
Other	[1]	1	(3)	0	(5)
Other Income (Deductions)	[1]	$ 18	$ 15	$ 20	$ 21

[1] Other consists of activity at PSEG (as parent company), PSEG Power, Energy Holdings, Services, PSEG LI and intercompany eliminations.