Rate Filings - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended
	Mar. 31, 2026	Feb. 28, 2026	Jan. 31, 2026
Conservation Incentive Program [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount			$ 65
Public Service Electric and Gas Company [Member] \| Conservation Incentive Program [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 26
Public Service Electric and Gas Company [Member] \| Gas System Modernization Program II [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount	$ 23
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 4
Public Service Electric and Gas Company [Member] \| Clean Energy Future-Electric Vehicles [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount			8
Electric Infrastructure Advancement Program [Member] \| Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount			10
Gas Infrastructure Advancement Program [Member] \| Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount			$ 4