Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 17	$ 15
Allowance for Funds Used During Construction		11	15
Solar Loan Interest		2	2
Interest Income, Other		7	10
Other		(2)	0
Other Income (Deductions)		35	42
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		11	15
Solar Loan Interest		2	2
Interest Income, Other		2	2
Other		1	2
Other Income (Deductions)		16	21
PSEG Power & Other
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	17	15
Allowance for Funds Used During Construction	[1]	0	0
Solar Loan Interest	[1]	0	0
Interest Income, Other	[1]	5	8
Other	[1]	(3)	(2)
Other Income (Deductions)	[1]	$ 19	$ 21

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