STOCK COMPENSATION PLANS STOCK COMPENSATION PLANS (Schedule of Compensation Costs) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Selling, General and Administrative Expense									$ 110.0	$ 154.7	$ 163.8
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									313.1	(19.7)	1,190.9
Income Tax Expense (Benefit)					$ (207.3)				169.3	(86.0)	237.6
Net Income (Loss) Attributable to Parent	$ (60.3)	$ 10.6	$ 60.2	$ (759.8)	$ (1,285.2)	$ (5,879.6)	$ 10.9	$ (70.3)	$ (749.3)	$ (7,224.2)	$ 413.5
Earnings Per Share, Basic	$ (0.39)	$ (0.10)	$ 0.39	$ (5.04)	$ (8.48)	$ (38.49)	$ (0.01)	$ (0.55)	$ (5.14)	$ (47.52)	$ 2.40
Earnings Per Share, Diluted	$ (0.39)	$ (0.10)	$ 0.39	$ (4.26)	$ (7.19)	$ (38.49)	$ (0.02)	$ (0.54)	$ (5.13)	$ (47.52)	$ 2.37
Deferred Compensation, Share-based Payments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Costs and Expenses									$ 4.0	$ 5.6	$ 4.9
Selling, General and Administrative Expense									9.9	15.9	14.2
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									13.9	21.5	19.1
Income Tax Expense (Benefit)									0.0	(7.5)	(6.7)
Net Income (Loss) Attributable to Parent									$ 13.9	$ 14.0	$ 12.4
Earnings Per Share, Basic									$ 0.09	$ 0.09	$ 0.08
Earnings Per Share, Diluted									$ 0.09	$ 0.09	$ 0.07