Derivative Instruments and Hedging Activities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments Gain (Loss) [Line Items]
Interest expense	$ (26.0)	$ (30.8)
Total net sales	1,064.2	1,102.8
Cost of Services	(539.2)	(505.5)
Miscellaneous, net	1.0	1.3
Foreign exchange gain (loss), net	(1.4)	(3.1)
Gain (loss) recognized on non-designated derivative instruments:
Gain (loss) recognized on non-designated derivative instruments, total	2.0	(2.0)
Interest rate swaps
Derivative Instruments Gain (Loss) [Line Items]
Interest expense	(0.3)	(1.2)
Foreign exchange forward contracts
Derivative Instruments Gain (Loss) [Line Items]
Total net sales	2.6	0.0
Cost of Services	(0.1)	0.0
Foreign exchange gain (loss), net	$ (0.2)	$ (0.8)