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Operations and Summary of Significant Accounting Policies - Accrued Expense and Reserves (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]      
Reserve for volume discounts and sales incentives $ 580.4 $ 537.7  
Warranty reserves 331.9 308.6  
Accrued employee compensation and benefits 290.8 286.2  
Accrued taxes 170.3 137.8  
Other 280.8 252.1  
Accrued expenses 1,654.2 1,522.4  
Movement in Standard Product Warranty Accrual [Roll Forward]      
Warranty reserves, beginning of period 360.9 316.0 $ 255.6
Acquisitions 0.0 0.0 5.1
Accruals for warranties issued during the year 234.1 230.5 215.9
Settlements made (in cash or in kind) during the year (198.7) (174.7) (183.1)
Foreign currency translation (3.5) (10.9) 22.5
Warranty reserves, end of period $ 392.8 360.9 $ 316.0
Minimum product warranty period 1 year    
Maximum product warranty period 4 years    
Warranty reserves included in other noncurrent liabilities $ 60.9 $ 52.3