Organization, Basis Of Presentation And Summary Of Significant Accounting Policies Organization, Basic of Presentation And Summary Of Significant Accounting Policies (Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		$ 465	$ 818
Restricted Cash and Investments, Noncurrent		19	17
Restricted Cash and Investments, Current		27	28
Cash, Cash Equivalents and Restricted Cash		511	863	$ 572	$ 176
Public Service Electric and Gas Company
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		220	294
Restricted Cash and Investments, Noncurrent		19	17
Restricted Cash and Investments, Current		27	28
Cash, Cash Equivalents and Restricted Cash		266	339	$ 233	$ 50
Other [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		245	524
Restricted Cash and Investments, Noncurrent		0	0
Restricted Cash and Investments, Current		0	0
Cash, Cash Equivalents and Restricted Cash	[1]	$ 245	$ 524

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