Leases - Operating lease liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Current operating lease liabilities	$ 99.8
Long-term operating lease liabilities	2,373.6	$ 2,350.3
Present value of future minimum lease payments	$ 2,473.4
Operating Lease, Liability, Current ,Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Liabilities