Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 15	$ 14
Allowance for Funds Used During Construction		15	15
Solar Loan Interest		2	3
Purchase of Tax Losses			(27)
Other		10	0
Other Income (Deductions)		42	5
Public Service Electric and Gas Company [Member]
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		0	0
Allowance for Funds Used During Construction		15	15
Solar Loan Interest		2	3
Purchase of Tax Losses			0
Other		4	1
Other Income (Deductions)		21	19
PSEG Power & Other
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	15	14
Allowance for Funds Used During Construction	[1]	0	0
Solar Loan Interest	[1]	0	0
Purchase of Tax Losses	[1]		(27)
Other	[1]	6	(1)
Other Income (Deductions)	[1]	$ 21	$ (14)

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