Restructuring - Restructuring Charges By Statement of Income Account (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Schedule of restructuring and related costs
Restructuring Charges	$ 38.3	$ 17.4	$ 44.4	$ 44.7
Cost of sales – services
Schedule of restructuring and related costs
Restructuring Charges	3.6	13.5	4.7	29.4
Cost of sales – products
Schedule of restructuring and related costs
Restructuring Charges	3.0	1.2	3.1	2.8
Cost Of Sales Software [Member]
Schedule of restructuring and related costs
Restructuring Charges	2.1	0.4	2.7	0.1
Selling and administrative expense
Schedule of restructuring and related costs
Restructuring Charges	28.6	2.7	33.0	13.5
Research, development and engineering expense
Schedule of restructuring and related costs
Restructuring Charges	$ 1.0	$ (0.4)	$ 0.9	$ (1.1)