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Litigation and Environmental - Lower Passaic River (Details) - Pending Litigation
$ in Millions
Oct. 05, 2016
USD ($)
mi
Mar. 04, 2016
USD ($)
mi
Dec. 31, 2020
mi
Parties
Lower Passaic River Study Area      
Site Contingency [Line Items]      
Miles of river | mi     17
Number of Parties at a Joint Defense Group | Parties     44
Lower Passaic River Study Area | EPA preferred alternative estimate      
Site Contingency [Line Items]      
Environmental Remediation Expense | $   $ 1,700  
Lower Passaic River Study Area | AOC required engineering and design work      
Site Contingency [Line Items]      
Environmental Remediation Expense | $ $ 165    
Lower Passaic River Study Area | Design      
Site Contingency [Line Items]      
Estimated Remedy Implementation Period 4 years    
Lower Passaic River Study Area | Clean Up Implementation      
Site Contingency [Line Items]      
Estimated Remedy Implementation Period 6 years    
Lower Passaic River Study Area, Lower Portion      
Site Contingency [Line Items]      
Miles of river | mi 8 8 8