LEASE COMMITMENTS - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Lease Commitments [Abstract]
Operating lease right-of-use assets included within Other assets	$ 102.9	$ 122.9
Current maturities of operating leases included within Other current liabilities	24.8	25.9
Non-current operating leases included within Other liabilities	82.9	104.7
Total operating lease liabilities	$ 107.7	$ 130.6
Weighted average discount rate for operating leases	5.33%	5.58%
Weighted average remaining operating lease term in years	5 years	6 years
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent	us-gaap:OtherLiabilitiesNoncurrent