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Pension Plans and Other Benefits Postretirement Medical Benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Amount $ 845.2 $ 790.6  
Liability, Defined Benefit Plan, Noncurrent (158.5) (173.6)  
North American Other Postretirement Benefits Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Benefit Obligation 35.0 35.5  
Brazil Other Postretirement Benefit Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 1.0 0.8  
Interest cost 7.9 6.9  
Actuarial loss 7.9 30.7  
Currency fluctuations (27.7) (4.3)  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (1.7) (0.5)  
Defined Benefit Plan, Benefit Obligation 96.8 109.4 $ 75.8
Company contribution 1.7 0.5  
Defined Benefit Plan, Plan Assets, Benefits Paid (1.7) (0.5)  
Defined Benefit Plan, Plan Assets, Amount 0.0 0.0  
Funded status of the plans as of the end of period (96.8) (109.4)  
Liability, Defined Benefit Plan, Current (1.7) (1.7)  
Liability, Defined Benefit Plan, Noncurrent (95.1) (107.7)  
Actuarial loss $ 42.6 $ 50.9  
Discount rate 7.45% 9.15%  
Minimum | North American Other Postretirement Benefits Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 3.2