Leases - Supplemental balance sheet (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease assets	$ 314.5	$ 299.1
Finance lease assets	$ 217.9	$ 206.5
Finance lease, right-of-use asset, statement of financial position [extensible enumeration]	Property and equipment, net	Property and equipment, net
Total lease assets	$ 532.4	$ 505.6
Current liabilities operating leases	$ 74.7	$ 77.3
Operating lease, liability, current, statement of financial position [extensible enumeration]	Accrued Liabilities, Current	Accrued Liabilities, Current
Current liabilities financing leases	$ 43.0	$ 43.0
Finance lease, liability, current, statement of financial position [extensible enumeration]	Current maturities of long-term debt	Current maturities of long-term debt
Lease liabilities	$ 249.9	$ 241.8
Finance lease, liability, noncurrent, statement of financial position [extensible enumeration]	Long-term debt	Long-term debt
Noncurrent liabilities financing leases	$ 149.2	$ 135.5
Total lease liabilities	$ 516.8	$ 497.6