Credit losses (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) country	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($) country
Valuation Allowance [Line Items]
Number of Countries in which Entity Operates | country	100		100
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts, beginning balance		$ 16.9	$ 16.9
Provision for uncollectible accounts receivable			19.9
Other			6.1
Write-offs and recoveries			(5.0)
Foreign currency exchange effects			(0.7)
Allowance for doubtful accounts, ending balance	$ 37.2		$ 37.2
Uncollectible Receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Provision for uncollectible accounts receivable	$ 0.4	$ 16.7