Schedule II: Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts
Balance at Beginning of Year	$ 11.1	$ 12.8	$ 15.4
Charge to Costs and Expenses	1.7	1.0	2.5
Utilization of Reserve	(2.7)	(2.9)	(3.5)
Other, Primarily Impact of Foreign Exchange Rates	0.8	0.2	(1.6)
Balance at end of Year	10.9	11.1	12.8
Deferred Tax Valuation Allowance
Valuation and Qualifying Accounts
Balance at Beginning of Year	269.6	86.5	85.2
Charge to Costs and Expenses	15.2	199.2	11.4
Utilization of Reserve	(128.7)	(4.1)	(1.9)
Other, Primarily Impact of Foreign Exchange Rates	6.2	(12.0)	(8.2)
Balance at end of Year	$ 162.3	$ 269.6	$ 86.5