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Supplemental cash flow information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Interest	$ 88.7	$ 78.7
Income taxes, net	101.6	55.9
Financing Leases	43.7	57.7
Restricted cash	329.9		$ 376.4
Cash and cash equivalents	1,019.0		710.3
Cash, Cash Equivalents, and Restricted Cash	1,348.9	$ 1,022.5	1,086.7	$ 942.9
Cash Held From Customers
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	163.6		215.5
Deposits liability
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	140.9		139.9
Revolving Credit Facility
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	$ 22.5		$ 15.0