Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Income Taxes for Other than Continuing Operations) (Details)

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INCOME TAXES (Income Taxes for Other than Continuing Operations) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Contingency [Line Items]      
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax $ 0.0 $ 0.0 $ 5.9
Other Comprehensive Income Unrealized Gain Loss On Mark To Market Adjustments Arising During Period Tax 0.0 0.0 0.3
Other Comprehensive Income (Loss), Other Tax 0.0 0.5 0.0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent 0.0 0.5 6.2
Discontinued Operation, Tax Effect of Discontinued Operation $ 0.0 $ 0.0 $ (6.0)