CASH FLOW INFORMATION (Reconciliation Of Capital Additions To Cash Paid For Capital Expenditures) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Supplemental Cash Flow Information [Abstract]
Property, Plant and Equipment, Additions	$ 191.6	$ 70.4	$ 320.9	$ 149.3
Capital Expenditures Incurred but Not yet Paid			3.6	34.9
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability			24.8
Capital leases				0.0
Government grant rebate			(8.4)	0.0
Payments To Acquire Property Plant And Equipment Net			$ 300.9	$ 114.4