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Business Segments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Disaggregation of Revenue [Line Items]        
Net Sales $ 2,381.5 $ 2,753.4 $ 6,224.3 $ 6,830.0
Product        
Disaggregation of Revenue [Line Items]        
Net Sales 2,381.5 2,753.4 6,224.3 6,830.0
Product | Canada | Transferred at Point in Time        
Disaggregation of Revenue [Line Items]        
Net Sales $ 122.2 $ 157.0 $ 376.9 $ 435.3