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, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		$ 54	$ 465
Restricted Cash and Investments, Noncurrent		22	19
Restricted Cash and Investments, Current		23	27
Cash, Cash Equivalents and Restricted Cash		99	511	$ 863	$ 572
Public Service Electric and Gas Company
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		30	220
Restricted Cash and Investments, Noncurrent		22	19
Restricted Cash and Investments, Current		23	27
Cash, Cash Equivalents and Restricted Cash		75	266	$ 339	$ 233
Other [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents		24	245
Restricted Cash and Investments, Noncurrent		0	0
Restricted Cash and Investments, Current		0	0
Cash, Cash Equivalents and Restricted Cash	[1]	$ 24	$ 245

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