Restructuring - Restructuring Charges By Statement of Income Account (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of restructuring and related costs
Restructuring Charges	$ 17.4	$ 7.4	$ 44.7	$ 12.8
Cost of sales – services and software
Schedule of restructuring and related costs
Restructuring Charges	14.0	2.0	29.6	3.7
Cost of sales – systems
Schedule of restructuring and related costs
Restructuring Charges	1.2	0.3	2.8	0.3
Selling and administrative expense
Schedule of restructuring and related costs
Restructuring Charges	2.6	5.0	13.4	8.6
Research, development and engineering expense
Schedule of restructuring and related costs
Restructuring Charges	$ (0.4)	$ 0.1	$ (1.1)	$ 0.2