Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details)

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INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Income Tax Contingency [Line Items]    
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions $ 77.5 $ 76.3
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits 25.3 25.6
Deferred Tax Assets, Deferred Income 23.3 24.2
Deferred Tax Assets, Goodwill and Intangible Assets 11.6 13.0
Deferred Tax Assets, Operating Loss Carryforwards 2,118.8 2,362.4
Deferred Tax Assets, Property, Plant and Equipment 13.3 0.0
Deferred Tax Assets, State Taxes 68.2 74.2
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other 36.8 30.4
Deferred Tax Assets, Gross 2,374.8 2,606.1
Deferred Tax Assets, Valuation Allowance (1,287.3) (1,983.1)
Deferred Tax Assets, Net of Valuation Allowance 1,087.5 623.0
Deferred Tax Liabilities, Property, Plant and Equipment 0.0 (1.5)
Deferred Tax Liabilities Investment In Ventures (141.2) (137.5)
Deferred Tax Liabilities, Intercompany Notes 465.7 465.7
Deferred Tax Liabilities Other Assets (15.8) (18.3)
Deferred Tax Liabilities, Net (622.7) (623.0)
Deferred Tax Assets, Net $ 464.8 $ 0.0