Rate Filings (Details) $ in Millions	1 Months Ended							9 Months Ended
	Oct. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jul. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	May 31, 2022 USD ($)	Apr. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets		$ 3,890.0						$ 3,890.0	$ 3,605.0
Regulatory Assets		400.0						400.0	364.0
Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets		3,890.0						3,890.0	3,605.0
Regulatory Assets		400.0						400.0	364.0
Public Service Electric and Gas Company [Member] | Electric meters to be retired
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission and Distribution		178.0						178.0	$ 192.0
Public Service Electric and Gas Company [Member] | ZEC Liability
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount						$ (4.0)
ZEC purchases								161.0
Public Service Electric and Gas Company [Member] | COVID-19 Deferral - Bad Debt portion
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets		62.0						$ 62.0
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					$ 25.0
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 23.0
Public Service Electric and Gas Company [Member] | Basic Gas Supply Service
Regulatory Assets And Liabilities [Line Items]
Approved BGSS rate per therm						0.41
Proposed BGSS rate per therm		0.65						0.65
Public Service Electric and Gas Company [Member] | Energy Strong II Electric
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount					17.0
Public Service Electric and Gas Company [Member] | Energy Strong II Gas
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount					$ 1.0
Public Service Electric and Gas Company [Member] | Conservation Incentive Program
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount		$ 53.0		$ 52.0
Public Service Electric and Gas Company [Member] | Green Program Recovery electric portion
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				0.4
Public Service Electric and Gas Company [Member] | Conservation Incentive Program First Twelve Months
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				18.0
Public Service Electric and Gas Company [Member] | Gas Green Program Recovery [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				1.0
Public Utilities, Requested Rate Increase (Decrease), Amount			$ 8.0
Public Service Electric and Gas Company [Member] | Electric Green Program Recovery [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				4.0
Public Utilities, Requested Rate Increase (Decrease), Amount			$ 110.0
Public Utilities, Requested Program extension amount		320.0
Public Service Electric and Gas Company [Member] | Solar Successor Incentive
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				38.0
Public Service Electric and Gas Company [Member] | Formula Rate True up
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				(1.0)
COVID-19 deferrals [Member] | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets		$ 122.0						$ 122.0
Remediation Adjustment Clause | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount							$ 44.0
Tax Adjustment Credits Electric Distribution [Member] | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				15.0
Tax Adjustment Credits Gas Distribution [Member] | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount				$ 31.0
Subsequent Event [Member] | Public Service Electric and Gas Company [Member] | ZEC Liability
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	$ (1.3)
Subsequent Event [Member] | Public Service Electric and Gas Company [Member] | Formula Rate True up
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	69.0
Subsequent Event [Member] | Tax Adjustment Credits Electric Distribution [Member] | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	17.0
Subsequent Event [Member] | Tax Adjustment Credits Gas Distribution [Member] | Public Service Electric and Gas Company [Member]
Regulatory Assets And Liabilities [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	$ (70.0)