XML 90 R69.htm IDEA: XBRL DOCUMENT v3.21.1
Commitments And Contingent Liabilities (Environmental Matters) (Detail)
$ in Millions
Mar. 31, 2021
USD ($)
Plant
mi
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 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 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
Pse G S Former Mgp Sites [Member]  
Site Contingency [Line Items]  
Aggregate Number Of Mgp Sites Identified For Cleanup By New Jersey Department Of Environmental Protection 38
Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member]  
Site Contingency [Line Items]  
Remediation Liability Recorded As Other Current Liabilities $ 110
Remediation Liability Recorded As Other Noncurrent Liabilities 190
Regulatory Assets 300
Minimum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member]  
Site Contingency [Line Items]  
Loss Contingency, Estimate of Possible Loss 300
Accrual for Environmental Loss Contingencies 300
Maximum [Member] | Mgp Remediation Site Contingency [Member] | Public Service Electric and Gas Company [Member]  
Site Contingency [Line Items]  
Loss Contingency, Estimate of Possible Loss $ 338