Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Component of Other Income [Line Items]
Investment Income, Interest and Dividend	$ 59		$ 52		$ 57
Components of Other Income [Roll Forward]
Allowance for Funds Used During Construction	71		87		59
Solar Loan Interest	13		15		16
Donations	(22)		(3)		(11)
Purchase of Tax Losses	(19)		(36)
Other	(4)		0		4
Total Other Income and Deductions	98		115		125
Public Service Electric and Gas Company
Component of Other Income [Line Items]
Investment Income, Interest and Dividend	0		0		0
Components of Other Income [Roll Forward]
Allowance for Funds Used During Construction	71		87		59
Solar Loan Interest	13		15		16
Donations	(1)		0		0
Purchase of Tax Losses	0		0
Other	5		6		8
Total Other Income and Deductions	88		108		83
Other [Member]
Component of Other Income [Line Items]
Investment Income, Interest and Dividend	59		52		57
Components of Other Income [Roll Forward]
Allowance for Funds Used During Construction	0		0		0
Solar Loan Interest	0		0		0
Donations	(21)		(3)		(11)
Purchase of Tax Losses	(19)		(36)
Other	(9)		(6)		(4)	[1]
Total Other Income and Deductions	$ 10	[1]	$ 7	[1]	$ 42

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