Leases - Summary of Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost	$ 34.2	$ 40.4	$ 71.1	$ 83.5
Short-term cost	9.5	2.1	19.1	4.1
Variable lease cost	2.6	1.8	5.1	4.2
Total lease cost	$ 46.3	$ 44.3	$ 95.3	$ 91.8