LEASES - Maturities of Lease Liabilities (Details) $ in Millions	Dec. 31, 2019 USD ($)
Operating Lease Liabilities, Payments Due
2020 (remaining six months)	$ 64.5
2021	114.8
2022	86.6
2023	67.9
2024	54.3
Thereafter	205.2
Total lease payments	593.3
Less: Interest	(96.7)
Total	496.6
Less: current portion	(124.7)
Long-term portion	371.9
Finance Lease Liabilities, Payments, Due
2020 (remaining six months)	10.8
2021	20.6
2022	20.9
2023	20.6
2024	19.7
Thereafter	184.2
Total lease payments	276.8
Less: Interest	(89.3)
Total	187.5
Less: current portion	(10.0)
Long-term portion	177.5
Lessor, operating lease not yet commenced	0.0
Lessor, finance lease not yet commenced	$ 0.0