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Debt - Maturing within One Year (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Short-term Debt [Line Items]    
Total short-term debt $ 589.3 $ 244.7
Current portion of long-term debt 385.1 93.6
Total short-term debt and current portion of long-term debt 974.4 338.3
Short-term foreign debt    
Short-term Debt [Line Items]    
Total short-term debt $ 102.4 98.4
Average effective interest rate 12.00%  
Commercial paper    
Short-term Debt [Line Items]    
Total short-term debt $ 486.9 $ 146.3
Average effective interest rate 0.51%