Organization and Basis of Presentation Organization and Basis of Presentation (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents		$ 377	$ 818
Cash, Cash Equivalents and Restricted Cash		418	863	$ 1,860	$ 572
Public Service Electric and Gas Company [Member]
Cash and Cash Equivalents		308	294
Restricted Cash in Other Current Assets		23	28
Restricted Cash in Other Noncurrent Assets		18	17
Cash, Cash Equivalents and Restricted Cash		349	339	$ 509	$ 233
Other Entities [Member]
Cash and Cash Equivalents	[1]	69	524
Restricted Cash in Other Current Assets	[1]	0	0
Restricted Cash in Other Noncurrent Assets	[1]	0	0
Cash, Cash Equivalents and Restricted Cash	[1]	69	524
Asset Retirement Obligation, Revision of Estimate		145
Other Current Assets [Member]
Restricted Cash in Other Current Assets		23	28
Other Noncurrent Assets [Member]
Restricted Cash in Other Noncurrent Assets		$ 18	$ 17

[1] Includes amounts applicable to PSEG (parent company), PSEG Power, Energy Holdings and Services.