Pension, OPEB and Savings Plans (Schedule Of Pension And OPEB Costs) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (115)	$ (82)	$ (28)
Total Benefit Costs	(115)	(82)	(28)
Pension Benefits [Member] | Public Service Electric and Gas Company
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(70)	(64)	(27)
Pension Benefits [Member] | PSEG Power & Other
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(45)	(18)	(1)
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(124)	(96)	(77)
Total Benefit Costs	(124)	(96)	(77)
Other Benefits [Member] | Public Service Electric and Gas Company
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(109)	(92)	(76)
Other Benefits [Member] | PSEG Power & Other
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (15)	$ (4)	$ (1)