Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 16	$ 14	$ 30	$ 27
Allowance for Funds Used During Construction		15	19	30	42
Solar Loan Interest		3	4	6	7
Purchase of Tax Losses			(3)	(27)	(19)
Other		4	(1)	4	1
Other Income (Deductions)		38	33	43	58
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		15	19	30	42
Solar Loan Interest		3	4	6	7
Purchase of Tax Losses			0	0	0
Other		4	1	5	3
Other Income (Deductions)		22	24	41	52
Other Entities [Member]
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	16	14	30	27
Allowance for Funds Used During Construction	[1]	0	0	0	0
Solar Loan Interest	[1]	0	0	0	0
Purchase of Tax Losses	[1]		(3)	(27)	(19)
Other	[1]	0	(2)	(1)	(2)
Other Income (Deductions)	[1]	$ 16	$ 9	$ 2	$ 6

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