Asset Retirement Obligations (AROs) (Impact Of The Revisions On Asset Retirement Obligation) (Details) - USD ($) $ in Millions		3 Months Ended			12 Months Ended
		Sep. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
ARO Liability, Beginning Balance					$ 1,573	$ 1,212
Liabilities Settled					(15)	(15)
Adjustments	[1]					(37)
Accretion Expense					50	44
Accretion Expense Deferred and Recovered in Rate Base	[2]				17	16
Revision to Present Value of Future Cash Flows					(126)	353
ARO Liability, Ending Balance			$ 1,573		1,499	1,573
Public Service Electric and Gas Company
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
ARO Liability, Beginning Balance					363	314
Liabilities Settled					(15)	(14)
Adjustments	[1]					0
Accretion Expense					0	0
Accretion Expense Deferred and Recovered in Rate Base	[2]				17	16
Revision to Present Value of Future Cash Flows					19	47
ARO Liability, Ending Balance			363		384	363
Other [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Revision to Present Value of Future Cash Flows			255	$ 51
PSEG Power & Other
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
ARO Liability, Beginning Balance					1,210	898
Liabilities Settled					0	(1)
Adjustments	[1]					(37)
Accretion Expense					50	44
Accretion Expense Deferred and Recovered in Rate Base	[2]				0	0
Revision to Present Value of Future Cash Flows					(145)	306
ARO Liability, Ending Balance			$ 1,210		$ 1,115	$ 1,210
PSEG Power LLC [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Revision to Present Value of Future Cash Flows		$ 145

[1] Represents amounts related to the sale of the solar plants and the fossil generating assets classified as Held for Sale.

[2] Not reflected as expense in Consolidated Statements of Operations.