Rate Filings - Additional Information (Details) - Public Service Electric and Gas Company [Member] $ in Millions	1 Months Ended
	Apr. 30, 2025 USD ($)	Feb. 28, 2025 USD ($)	Jan. 31, 2025 USD ($)
Conservation Incentive Program [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount		$ 96
Conservation Incentive Program Gas First Twelve Months
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount		65
Gas System Modernization Program II [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 53
Remediation Adjustment Clause [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount			$ 56
Basic Gas Supply Service [Member] \| Subsequent Event [Member]
Regulatory Assets And Liabilities [Line Items]
Approved BGSS rate per therm	0.33
Electric Infrastructure Advancement Program [Member] \| Subsequent Event [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount	$ 6
Gas Infrastructure Advancement Program [Member] \| Subsequent Event [Member]
Regulatory Assets And Liabilities [Line Items]
Public utilities, approved rate increase (decrease), amount	$ 3