INCOME TAXES INCOME TAXES (Income Taxes for Other than Continuing Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Contingency [Line Items]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ 0.0	$ 37.1	$ 83.2
Other Comprehensive Income Unrealized Gain Loss On Mark To Market Adjustments Arising During Period Tax	0.3	3.6	1.8
Other Comprehensive Income (Loss), Other Tax	5.9	0.2	(9.8)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	6.2	40.9	75.2
Income Tax Effects Allocated Directly to Equity, Equity Transactions	0.0	(4.8)	3.5
Discontinued Operation, Tax Effect of Discontinued Operation	$ (6.0)	$ (1,216.0)	$ (184.5)