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Commitments And Contingent Liabilities (Environmental Matters) (Detail) $ in Millions | Mar. 31, 2020 USD ($) entity Potentially_Responsible_Party Plant mi
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Site Contingency [Line Items] |
Number of miles related to the Passaic River constituting a facility as determined by the US Environmental Protection Agency | mi | 17
Number of additional legal entities contacted by EPA in conjunction with Newark Bay study area contamination | entity | 11
Passaic River Site Contingency [Member] |
Site Contingency [Line Items] |
Estimated Cleanup Costs EPA Preferred Method | $ 2,300
Accrual for Environmental Loss Contingencies | $ 65
Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River | Potentially_Responsible_Party | 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 | $ 52
Passaic River Site Contingency [Member] | PSEG Power [Member] |
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 | 69
Remediation Liability Recorded As Other Noncurrent Liabilities | 283
Regulatory Assets | 352
Minimum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Loss Contingency, Estimate of Possible Loss | 352
Accrual for Environmental Loss Contingencies | 352
Maximum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member] |
Site Contingency [Line Items] |
Loss Contingency, Estimate of Possible Loss | $ 395

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