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Property, Plant and Equipment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Depreciation $ 655.6 $ 612.2 $ 503.4
Capitalized Computer Software, Amortization 56.7 55.5 54.1
Capitalized Computer Software, Gross 136.4 169.6  
Capitalized Cloud Computing, Amortization 3.4 1.6 $ 0.1
Capitalized Cloud Computing, Gross $ 12.7 $ 14.2