LEASE - COMPONENTS OF LEASE COST AND OTHER INFORMATION (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Lease Cost
Operating lease cost	$ 71.4
Short-term lease cost	5.9
Variable lease cost	0.4
Total lease cost	77.7
Cash paid for amounts included in operating lease liabilities	71.3
Right of use assets obtained in the exchange for new operating lease liabilities	$ 65.3
Weighted-average remaining operating lease term	7 years 6 months
Weighted-average incremental borrowing rate	4.20%