v3.19.3.a.u2
Litigation and Environmental Matters (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Loss Contingencies  
Maximum expected cleanup exposure for individual site $ 4
Maximum expected clean up exposure in aggregate 10
Legal proceedings and environmental exposures  
Loss Contingencies  
Recorded accrual balance for legal proceedings and exposures 110
Legal proceedings and environmental exposures | Minimum  
Loss Contingencies  
Estimation of possible loss 95
Legal proceedings and environmental exposures | Maximum  
Loss Contingencies  
Estimation of possible loss $ 130