Organization, Basis of Presentation and Summary of Significant Accounting Policies - Depreciation Rate Stated Percentage (Details) - Public Service Electric and Gas Company [Member]	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Electric Transmission [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Depreciation Rate	2.09%	2.09%	2.18%
Electric Distribution [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Depreciation Rate	2.51%	2.54%	2.56%
Gas Distribution [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Depreciation Rate	1.84%	1.84%	1.93%