LEASES - COMPONENTS OF LEASE COST (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lease Cost
Operating lease cost	$ 110.7	$ 83.1
Short-term lease cost	3.1	10.6
Variable lease cost	0.6	0.8
Total lease cost	$ 114.4	$ 94.5