Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 20.3	$ 26.0	$ 26.9
Impact of foreign currency exchange rate changes	(3.1)	(4.0)	(1.2)
Provision	3.2	4.9	6.3
Write-offs	(2.8)	(6.6)	(6.0)
Ending balance	17.6	20.3	26.0
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	118.5	73.2	55.9
Provision	38.1	102.4	23.2
Write-offs	(6.8)	(12.8)	(0.2)
Changes attributable to acquisitions and dispositions	6.7	(0.5)	0.0
Changes impacting equity and other movements	(17.0)	(43.8)	(5.7)
Ending balance	$ 139.5	$ 118.5	$ 73.2