Nature Of Operations And Significant Accounting Policies (Summary Of Inventories) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
excessandobsoleteinventoryreserve	$ 54.1	$ 48.5
Finished goods	97.7	102.3
Finished parts and subassemblies	38.2	46.9
Work in process	56.0	60.7
Raw materials	150.6	167.0
Total inventories	$ 342.5	$ 376.9