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Nature of Operations and Significant Accounting Policies (Summary Of Inventories) (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
excessandobsoleteinventoryreserve $ 85.9 $ 67.1
Finished goods 130.6 116.2
Finished parts and subassemblies 66.1 45.9
Work in process 47.7 55.4
Raw materials 212.9 194.0
Total inventories $ 457.3 $ 411.5