LEASES - Minimum lease payments (Details) $ in Millions	Mar. 31, 2020 USD ($)
Minimum lease payments
2020, remaining	$ 41.0
2021	113.3
2022	97.9
2023	71.8
2024	61.2
Thereafter	221.5
Total future lease payments	606.7
Less: imputed interest	(72.8)
Total present value of lease liabilities	533.9
Current operating lease liabilities	104.9
Long-term operating lease liabilities	429.0
Total operating lease liabilities	$ 533.9