Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	$ 2,567.9	$ 2,748.5	$ 2,273.3	$ 2,552.6
Other comprehensive (loss) income before reclassifications, net	6.6	(353.8)	413.1	(610.3)
Reclassifications, pretax	3.0		8.9
Tax expense reclassified				(0.5)
Balance	3,060.3	2,250.4	3,060.3	2,250.4
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	(446.8)	(386.0)	(899.3)	(122.2)
Other comprehensive (loss) income before reclassifications, net	(0.7)	(350.2)	451.8	(614.0)
Reclassifications, pretax	0.0		0.0
Tax expense reclassified				0.0
Balance	(447.5)	(736.2)	(447.5)	(736.2)
Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	(26.3)	(15.4)	(26.3)	(14.9)
Other comprehensive (loss) income before reclassifications, net	0.0	0.0	0.0	0.0
Reclassifications, pretax	0.0		0.0
Tax expense reclassified				(0.5)
Balance	(26.3)	(15.4)	(26.3)	(15.4)
Unrealized (Loss) Gain on Available for Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	(0.4)	0.3	1.2	0.1
Other comprehensive (loss) income before reclassifications, net	(0.1)	1.0	(1.7)	1.2
Reclassifications, pretax	0.0		0.0
Tax expense reclassified				0.0
Balance	(0.5)	1.3	(0.5)	1.3
Derivative Financial Instrument Revaluation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	(24.9)	0.0	(8.1)	0.0
Other comprehensive (loss) income before reclassifications, net	(1.6)	(11.8)	(24.3)	(11.8)
Reclassifications, pretax	3.0		8.9
Tax expense reclassified				0.0
Balance	(23.5)	(11.8)	(23.5)	(11.8)
Non-Controlling Interests
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	191.4	109.1	169.4	93.0
Other comprehensive (loss) income before reclassifications, net	9.0	7.2	(12.7)	14.3
Reclassifications, pretax	0.0		0.0
Tax expense reclassified				0.0
Balance	172.1	105.5	172.1	105.5
Non-Controlling Interests
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	24.7	13.5	46.4	6.4
Balance	33.7	20.7	33.7	20.7
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance	(473.7)	(387.6)	(886.1)	(130.6)
Balance	$ (464.1)	$ (741.4)	$ (464.1)	$ (741.4)