Leases - Balance Sheet Classification of Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finance leases
Property and equipment, net	$ 400.1	$ 431.2
Total finance lease assets	400.1	431.2
Other current liabilities	46.9	42.5
Long-term finance lease liabilities	509.8	539.0
Present value of lease liabilities	556.7	581.5
Operating leases
Total operating lease assets	330.3	325.6
Other current liabilities	33.3	10.5
Long-term operating lease liabilities	377.4	350.5
Present value of lease liabilities	$ 410.7	$ 361.0
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property and equipment, net	Property and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities