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v3.21.2

Rate Filings (Details) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2022 USD ($) | Sep. 30, 2021 USD ($) | Nov. 30, 2021 | Oct. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Aug. 31, 2021 USD ($) | Jul. 31, 2021 | Jun. 30, 2021 USD ($) | May 31, 2021 USD ($) | Apr. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Nov. 01, 2021 | Dec. 31, 2020 USD ($)
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  | $ 3,983.0 |  |  | $ 3,983.0 |  |  |  |  |  |  | $ 3,983.0 |  | $ 3,872.0
Regulatory Assets |  | 272.0 |  |  | 272.0 |  |  |  |  |  |  | 272.0 |  | 369.0
Public Service Electric and Gas Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  | 3,983.0 |  |  | 3,983.0 |  |  |  |  |  |  | 3,983.0 |  | 3,872.0
Regulatory Assets |  | 272.0 |  |  | 272.0 |  |  |  |  |  |  | 272.0 |  | $ 369.0
Public Service Electric and Gas Company [Member] | Gas Weather Normalization Deferral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Requested Rate Increase (Decrease), Amount |  |  |  |  | (2.0) |  |  |  |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | ZEC Liability |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
ZEC purchases |  |  |  |  |  |  |  |  |  |  |  | 157.0 |  |
Public Service Electric and Gas Company [Member] | COVID-19 Deferral - Bad Debt portion |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  | 49.0 |  |  | 49.0 |  |  |  |  |  |  | 49.0 |  |
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 |  |  |  |  |  |  |  |  | $ 21.0 |  |  |  |  |
Public Utilities, Requested Rate Increase (Decrease), Amount |  |  |  |  | 28.0 |  |  |  |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | Energy Strong II |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Rate Increase (Decrease), Amount |  |  |  |  |  |  |  |  |  | $ 13.0 |  |  |  |
Public Service Electric and Gas Company [Member] | Electric Green Program Recovery [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Requested Rate Increase (Decrease), Amount |  |  |  |  |  |  |  | $ 2.0 |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | Gas Green Program Recovery [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Requested Rate Increase (Decrease), Amount |  |  |  |  |  |  |  | 2.0 |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | Remediation Adjustment Charge [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Rate Increase (Decrease), Amount |  |  |  |  |  |  |  |  |  |  | $ 35.0 |  |  |
Public Service Electric and Gas Company [Member] | Transmission Formula Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Rate Increase (Decrease), Amount |  | (21.0) |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Return on Equity, Percentage |  |  |  |  |  |  | 11.18% |  |  |  |  |  |  |
Public Utilities, Requested Return on Equity, Percentage |  |  |  |  |  | 9.90% |  |  |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | Formula Rate True up |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Rate Increase (Decrease), Amount |  |  |  |  |  |  |  | $ 13.0 |  |  |  |  |  |
Public Service Electric and Gas Company [Member] | Community Solar Energy Pilot |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Requested Rate Increase (Decrease), Amount |  |  |  |  |  |  |  |  | $ 0.4 |  |  |  |  |
Public Service Electric and Gas Company [Member] | Basic Gas Supply Service |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proposed BGSS rate per therm |  |  |  |  |  |  |  | 0.32 |  |  |  |  |  |
Approved BGSS rate per therm |  |  |  |  |  |  |  |  |  |  | 0.32 |  |  |
COVID-19 deferrals [Member] | Public Service Electric and Gas Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  | 95.0 |  |  | 95.0 |  |  |  |  |  |  | 95.0 |  |
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 |  |  |  |  |  | $ (22.0) |  |  |  |  |  |  |  |
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 |  |  |  |  |  | $ (57.0) |  |  |  |  |  |  |  |
Electric Bad Debt Deferral | Public Service Electric and Gas Company [Member] | Societal Benefits Charges Sbc |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  | $ 112.0 |  |  | $ 112.0 |  |  |  |  |  |  | $ 112.0 |  |
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 |  |  |  | $ (4.0) |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Public Service Electric and Gas Company [Member] | Transmission Formula Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Utilities, Approved Rate Increase (Decrease), Amount | $ (150.0) |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Public Service Electric and Gas Company [Member] | Basic Gas Supply Service |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proposed BGSS rate per therm |  |  |  |  |  |  |  |  |  |  |  |  | 0.36 |
Public Utilities, Requested Rate Increase (Decrease), Percentage |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  | (15.0) |  |  |  |  |  |  |  |  |  |
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 |  |  |  | $ (31.0) |  |  |  |  |  |  |  |  |  |

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