Other Income (Deductions) (Schedule Of Other Income (Deductions)) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024		Jun. 30, 2023
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		$ 23	$ 19	$ 40		$ 34
Allowance for Funds Used During Construction		9	15	20		30
Solar Loan Interest		1	2	3		4
Interest Income, Other		12	14	19		23
Other		2	(1)	0		0
Net Other Income (Deductions)		47	49	82		91
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		9	15	20		30
Solar Loan Interest		1	2	3		4
Interest Income, Other		1	5	3		7
Other		5	1	6		3
Net Other Income (Deductions)		16	23	32		44
PSEG Power & Other
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	23	19	40		34
Allowance for Funds Used During Construction	[1]	0	0	0		0
Solar Loan Interest	[1]	0	0	0		0
Interest Income, Other		11	9	16	[1]	16	[1]
Other	[1]	(3)	(2)	(6)		(3)
Net Other Income (Deductions)	[1]	$ 31	$ 26	$ 50		$ 47

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