Derivative Instruments and Hedging Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative Instruments Gain (Loss) [Line Items]
Document Period End Date			Jun. 30, 2017
Interest expense	$ (32.2)	$ (24.3)	$ (63.0)	$ (35.8)
Miscellaneous, net	1.9	(26.8)	3.2	7.8
Foreign exchange gain (loss), net	(4.6)	(1.2)	(7.7)	(3.6)
Gain (loss) recognized on non-designated derivative instruments:
Gain (loss) recognized on non-designated derivative instruments, total	3.3	(21.6)	1.9	10.1
Interest rate swaps
Derivative Instruments Gain (Loss) [Line Items]
Interest expense	(0.9)	(2.1)	(2.1)	(3.1)
Gain on foreign currency option contracts
Derivative Instruments Gain (Loss) [Line Items]
Miscellaneous, net	0.0	(0.9)	0.0	35.6
Foreign exchange forward contracts
Derivative Instruments Gain (Loss) [Line Items]
Miscellaneous, net	0.0	(22.7)	0.0	(22.7)
Foreign exchange gain (loss), net	$ 4.2	$ 4.1	$ 4.0	$ 0.3