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Pension and Postretirement Benefits (Expected Benefit Payments) (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Postretirement Medical Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Expected Payment, 2020 $ 2.4
Expected Payment, 2021 2.3
Expected Payment, 2022 2.1
Expected Payment, 2023 1.9
Expected Payment, 2024 1.7
Expected Payment, 2025-2029 6.6
United States | Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Expected Payment, 2020 42.8
Expected Payment, 2021 44.0
Expected Payment, 2022 41.9
Expected Payment, 2023 42.9
Expected Payment, 2024 42.1
Expected Payment, 2025-2029 196.8
Foreign Plan | Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Expected Payment, 2020 16.5
Expected Payment, 2021 17.0
Expected Payment, 2022 17.8
Expected Payment, 2023 17.9
Expected Payment, 2024 18.7
Expected Payment, 2025-2029 $ 97.3