LEASES (Supplemental Cash Flow and Other Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases - Supplemental Cash Flow and Other Information [Abstract]
Operating cash flows for operating leases	$ 292.4	$ 241.1
Operating cash flows for finance leases	4.3	0.8
Financing cash flows for finance leases	12.4	1.4
Supplemental non-cash amounts of lease liabilities arising from obtaining right-of-use assets	$ 702.0	$ 340.2
Weighted average remaining lease term - operating leases	10 years 7 months 6 days
Weighted average remaining lease term - finance leases	7 years 1 month 6 days
Weighted average discount rate - operating leases	9.10%
Weighted average discount rate - finance leases	5.50%