Credit losses (Details) $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended
	Mar. 31, 2022 USD ($)	Sep. 30, 2022 USD ($) country	Sep. 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			22.7
Other			5.0
Write-offs and recoveries			(6.6)
Foreign currency exchange effects			(1.4)
Allowance for doubtful accounts, ending balance		$ 36.6	$ 36.6
Uncollectible Receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Provision for uncollectible accounts receivable	$ 16.7	$ 0.7