Annual report pursuant to Section 13 and 15(d)

DEBT AND CREDIT FACILITIES (Narrative) (Details)

v3.6.0.2
DEBT AND CREDIT FACILITIES (Narrative) (Details)
shares in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
shares
Sep. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Sep. 16, 2016
USD ($)
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt         $ (166,300,000) $ (392,900,000) $ (16,200,000)  
Payments of Debt Issuance Costs         5,200,000 33,600,000 $ 9,000,000  
Long-term Debt, Current Maturities $ 17,500,000       $ 17,500,000      
Common Shares Issued in Debt to Equity Exchange | shares 8.2       8.2      
Debt Instrument, Face Amount Exchanged     $ 512,200,000 $ 674,600,000        
$540 Million 8.25% 2020 First Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 8.25%       8.25%      
Debt Instrument, Par Value $ 540,000,000       $ 540,000,000 540,000,000    
$218.5 Million 8.00% 2020 1.5 Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 8.00%       8.00%      
Debt Instrument, Par Value $ 218,500,000   218,500,000   $ 218,500,000      
$544.2 Million 7.75% 2020 Second Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 7.75%       7.75%      
Debt Instrument, Par Value $ 430,100,000     544,200,000 $ 430,100,000 544,200,000    
Debt Instrument, Face Amount Exchanged     114,100,000          
Secured Debt [Member]                
Line of Credit Facility [Line Items]                
Repurchase price if triggering event occurs         1.01      
In the Event of Default Amount that will Accelerate         0.25      
$500 Million 3.95% 2018 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 3.95%       3.95%      
Debt Instrument, Par Value           311,200,000    
Gain on extinguishment/restructuring of debt   $ 19,900,000            
Amortization of Debt Discount (Premium)   17,400,000            
Debt Redemption Expenses   2,500,000            
Basis points 50       50      
Debt Instrument, Face Amount Exchanged     17,600,000          
Debt Instrument, Repurchased Face Amount           168,800,000    
$400 Million 5.90% 2020 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 5.90%       5.90%      
Debt Instrument, Par Value $ 225,600,000       $ 225,600,000 290,800,000    
Basis points 35       35      
Debt Instrument, Face Amount Exchanged     65,100,000 67,000,000        
Debt Instrument, Repurchased Face Amount           37,300,000    
$500 Million 4.80% 2020 Senior Notes[Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 4.80%       4.80%      
Debt Instrument, Par Value $ 236,800,000       $ 236,800,000 306,700,000    
Gain on extinguishment/restructuring of debt (600,000)              
Debt Instrument, Face Amount Exchanged     44,700,000 137,800,000        
Debt Instrument, Repurchased Face Amount $ 5,000,000       $ 5,000,000 45,600,000    
$700 Million 4.875% 2021 Senior Notes[Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 4.875%       4.875%      
Debt Instrument, Par Value $ 309,400,000       $ 309,400,000 412,500,000    
Basis points 25       25      
Debt Instrument, Face Amount Exchanged     76,300,000 208,500,000        
Debt Instrument, Repurchased Face Amount           69,000,000    
$800 Million 6.25% 2040 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage 6.25%       6.25%      
Debt Instrument, Par Value $ 298,400,000       $ 298,400,000 492,800,000    
Basis points 40       40      
Debt Instrument, Face Amount Exchanged     194,400,000 261,300,000        
Debt Instrument, Repurchased Face Amount           45,900,000    
Unsecured Debt [Member]                
Line of Credit Facility [Line Items]                
Repurchase price if triggering event occurs         1.01      
Note Redemption Price, Percent of Principal Amount to be Redeemed 100.00%       100.00%      
Unsecured Debt [Member] | Maximum [Member]                
Line of Credit Facility [Line Items]                
Time Period During Which Senior Notes May Be Redeemed at Company's Option, Number of Days From When Prior Notice Sent to Holders         60 days      
Unsecured Debt [Member] | Minimum [Member]                
Line of Credit Facility [Line Items]                
Time Period During Which Senior Notes May Be Redeemed at Company's Option, Number of Days From When Prior Notice Sent to Holders         30 days      
ABL Facility [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Par Value $ 550,000,000       $ 550,000,000      
U.S. Tranche 450,000,000       450,000,000      
Sublimit for Issuers of Letters of Credit for U.S. Tranche 250,000,000       250,000,000      
Sublimit for U.S. Swingline Loans 100,000,000       100,000,000      
Australian Tranche 100,000,000       100,000,000      
Sublimit for Issuance of Letters of Credit for Australian Tranche 50,000,000       50,000,000      
Sublimit for Australian Swingline Loans 20,000,000       $ 20,000,000      
LIBOR Rate Based on a One-month interest period plus 1 percent         0.01      
Fixed Charge Coverage Ratio         1.0      
Credit facility, amount outstanding 0       $ 0 0    
Line of Credit Facility, Remaining Borrowing Capacity 227,000,000       227,000,000 179,200,000    
Revolving credit facility, borrowing capacity 333,000,000       $ 333,000,000 366,000,000    
ABL Facility [Member] | Maximum [Member]                
Line of Credit Facility [Line Items]                
Base Rate         0.01      
Letter of Credit [Member]                
Line of Credit Facility [Line Items]                
Credit facility, amount outstanding 106,000,000       $ 106,000,000 186,300,000    
Hedge Obligations [Member]                
Line of Credit Facility [Line Items]                
Credit facility, amount outstanding           500,000    
Debt Repurchase [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt           (137,100,000)    
Debt Repurchase [Member] | $500 Million 3.95% 2018 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Redemption Price               $ 301,000,000
Debt Instrument, Par Value   $ 283,600,000            
Exchange of Debt [Member] | $218.5 Million 8.00% 2020 1.5 Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt         (174,300,000)      
Exchange of Debt [Member] | $544.2 Million 7.75% 2020 Second Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     (6,900,000)     (269,500,000)    
Exchange of Debt [Member] | $500 Million 3.95% 2018 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     (1,800,000)          
Exchange of Debt [Member] | $400 Million 5.90% 2020 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     (28,300,000) (24,500,000)        
Exchange of Debt [Member] | $500 Million 4.80% 2020 Senior Notes[Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     (19,500,000) (54,600,000)        
Exchange of Debt [Member] | $700 Million 4.875% 2021 Senior Notes[Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     (33,300,000) (83,100,000)        
Exchange of Debt [Member] | $800 Million 6.25% 2040 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt     $ (84,500,000) $ (107,300,000)        
Exchange of Debt for Equity [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt (11,300,000)              
Exchange of Debt for Equity [Member] | $218.5 Million 8.00% 2020 1.5 Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount Exchanged 20,100,000       20,100,000      
Exchange of Debt for Equity [Member] | $500 Million 3.95% 2018 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount Exchanged 10,000,000       10,000,000      
Exchange of Debt for Equity [Member] | $700 Million 4.875% 2021 Senior Notes[Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount Exchanged $ 26,800,000       $ 26,800,000      
Credit Facility Extinguishment [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment/restructuring of debt           $ (13,700,000)