LEASES - Lease by Due Date (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019			$ 56.4
2020			42.0
2021			35.3
2022			31.1
2023			22.4
Thereafter			46.9
Total lease payments			234.1
Finance Leases
2019			1.1
2020			0.6
2023			0.4
2024			0.2
2025			0.1
Thereafter			0.1
Total lease payments			2.5
Total
2019			57.5
2020			42.6
2021			35.7
2022			31.3
2023			22.5
Thereafter			47.0
Total lease payments			$ 236.6
Total lease liability	$ 191.6	$ 204.3