PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Annual Contributions To The Pension Plans) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Funded Percentage	70.00%
Company contributions	$ 2.1	$ 1.1
Expected company contributions, next fiscal year	$ 4.0
Value of VEBA Trust Assets as a Percentage of the Funding Obligation	0.9
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions	$ 24.4	1.2
Expected company contributions, next fiscal year	27.8
Direct Payments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions	2.1	1.1
Expected company contributions, next fiscal year	4.0
Veba Trust [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions	0.0	$ 0.0
Expected company contributions, next fiscal year	$ 0.0