Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Allowance, Credit Loss
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 56.3	$ 59.9	$ 54.6
Charged to Costs & Expenses	42.9	38.2	42.4
Impact of Currency	0.3	(0.1)	(0.5)
Charged to Other Accounts	30.6	0.9	0.4
Write Offs, Write Downs & Deductions	(45.2)	(42.6)	(37.0)
Ending balance	84.9	56.3	59.9
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	29.7	24.7	14.3
Charged to Costs & Expenses	0.0	0.0	0.0
Impact of Currency	0.0	0.0	0.0
Charged to Other Accounts	0.0	5.0	10.4
Write Offs, Write Downs & Deductions	(7.3)	0.0	0.0
Ending balance	$ 22.4	$ 29.7	$ 24.7