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Supplemental cash flow information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Condensed Cash Flow Statements, Captions [Line Items]
Interest	$ 59.1	$ 25.4
Income taxes, net	23.3	31.3
Financing Leases	20.7	14.4
Restricted cash	401.8		$ 438.5
Cash and cash equivalents	816.6		972.0
Cash, Cash Equivalents, and Restricted Cash	1,218.4	$ 1,046.2	1,410.5	$ 1,086.7
Cash Held From Customers
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	187.5		229.3
Deposits liability
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	158.2		156.3
Revolving Credit Facility
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	$ 42.0		$ 40.7