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Commitments and Contingent Liabilities - Environmental Matters - Additional Information (Details) $ in Millions | Sep. 30, 2025 USD ($) Plant
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Site Contingency [Line Items] |
Number of additional legal entities contacted by EPA in conjunction with Newark Bay study area contamination | 21
Passaic River Site Contingency [Member] |
Site Contingency [Line Items] |
Estimated Cleanup Costs EPA Preferred Method | $ 2,300
Accrual for Environmental Loss Contingencies | $ 66
Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River | 56
Passaic River Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Number of former generating electric station | Plant | 1
Accrual for Environmental Loss Contingencies | $ 53
Passaic River Site Contingency [Member] | PSEG Power |
Site Contingency [Line Items] |
Accrual for Environmental Loss Contingencies | 13
Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Remediation Liability Recorded As Other Current Liabilities | 24
Remediation Liability Recorded As Other Noncurrent Liabilities | 162
Regulatory assets | 186
Passaic River Site Upper 9 Miles |
Site Contingency [Line Items] |
Estimated Cleanup Costs EPA Preferred Method | 550
Passaic River proposed settlement other PRPs | 150
Minimum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Loss Contingency, Estimate of Possible Loss | 186
Accrual for Environmental Loss Contingencies | $ 186
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Accrued Environmental Loss Contingencies, Noncurrent
Maximum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Loss Contingency, Estimate of Possible Loss | $ 203

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