Restructuring - Restructuring Charges By Statement of Income Account (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Schedule of restructuring and related costs
Restructuring Charges	$ 3.9	$ 12.9
Cost of sales – services and software
Schedule of restructuring and related costs
Restructuring Charges	2.0	3.0
Cost of sales – systems
Schedule of restructuring and related costs
Restructuring Charges	0.6	0.6
Selling and administrative expense
Schedule of restructuring and related costs
Restructuring Charges	1.3	8.4
Research, development and engineering expense
Schedule of restructuring and related costs
Restructuring Charges	$ 0.0	$ 0.9