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Nature Of Operations And Significant Accounting Policies (Summary Of Inventories) (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]    
excessandobsoleteinventoryreserve $ 67.1 $ 57.9
Finished goods 116.2 101.1
Finished parts and subassemblies 45.9 46.1
Work in process 55.4 51.6
Raw materials 194.0 150.5
Total inventories $ 411.5 $ 349.3