Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Narrative) (Details)

v3.19.3.a.u2
INCOME TAXES (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 0.10% 0.00% 441.70%  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00% 35.00%  
Deferred Tax Assets, Operating Loss Carryforwards, Domestic $ 3,500.0 $ 3,600.0    
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 1,600.0 6,600.0    
Deferred Tax Assets, Valuation Allowance 441.3 1,287.3 $ 1,983.1 $ 3,095.1
Deferred Tax Asset, Interest Carryforward 55.3      
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   (695.8)    
Estimated Taxable Income to Fully Utilize Deferred Tax Assets 109.0      
Undistributed Earnings of Foreign Subsidiaries 0.0 0.0    
Unrecognized Tax Benefits 29.2 $ 29.0 33.5 $ 30.7
Cumulative Loss Position, Period   3 years    
valuation allowance reversal [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 0.0 $ (460.5) 0.0  
Dissolution of entities [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount (846.0) (161.7) 0.0  
Tax Law Change [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 0.0 0.0 (407.5)  
Foreign tax credit carryforward [Member]        
Income Tax Contingency [Line Items]        
Deferred Tax Assets, Valuation Allowance 5.8 5.8    
State and Local Jurisdiction [Member]        
Income Tax Contingency [Line Items]        
Deferred Tax Assets, Valuation Allowance 38.4 38.3    
United States [Member]        
Income Tax Contingency [Line Items]        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   (460.5)    
United States [Member] | Tax Law Change [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount     (334.1)  
LUXEMBOURG        
Income Tax Contingency [Line Items]        
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 397.1      
LUXEMBOURG | Dissolution of entities [Member]        
Income Tax Contingency [Line Items]        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (1,300.0) (161.7)    
LUXEMBOURG | Tax Law Change [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount     $ (73.4)  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   46.2    
Other Noncurrent Assets [Member]        
Income Tax Contingency [Line Items]        
Unrecognized Tax Benefits 24.8 24.8    
Other Liabilities [Member]        
Income Tax Contingency [Line Items]        
Unrecognized Tax Benefits 4.4 4.2    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 3.7 $ 2.7    
Minimum [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 0.00%      
Maximum [Member]        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 24.94%      
Maximum [Member] | LUXEMBOURG        
Income Tax Contingency [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent   24.94% 26.01%  
Intercompany notes [Member] | LUXEMBOURG        
Income Tax Contingency [Line Items]        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 446.5