Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023		Jun. 30, 2022
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 19	$ 16	$ 34		$ 30
Allowance for Funds Used During Construction		15	15	30		30
Solar Loan Interest		2	3	4		6
Interest Income, Other		14	4	23		4
Purchase of Tax Losses						(27)
Other		(1)	0	0		0
Other Income (Deductions)		49	38	91		43
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	15	30		30
Solar Loan Interest		2	3	4		6
Interest Income, Other		5	2	7		2
Purchase of Tax Losses						0
Other		1	2	3		3
Other Income (Deductions)		23	22	44		41
PSEG Power & Other
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	19	16	34		30
Allowance for Funds Used During Construction	[1]	0	0	0		0
Solar Loan Interest	[1]	0	0	0		0
Interest Income, Other		9	2	16	[1]	2
Purchase of Tax Losses	[1]					(27)
Other	[1]	(2)	(2)	(3)		(3)
Other Income (Deductions)	[1]	$ 26	$ 16	$ 47		$ 2

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