Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Major classes of inventories

The following table summarizes the major classes of inventories as of December 31:

	2017		2016
Finished goods	$	301.9	$	330.5
Service parts	270.6		235.2
Raw materials and work in process	164.5		172.0
Total inventories	$	737.0	$	737.7