Annual report pursuant to Section 13 and 15(d)

DEBT AND CREDIT FACILITIES (Narrative) (Details)

v3.3.1.900
DEBT AND CREDIT FACILITIES (Narrative) (Details)
 3 Months Ended 12 Months Ended
Sep. 22, 2010
USD ($)
May. 27, 2010
USD ($)
Sep. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Aug. 11, 2011
USD ($)
Line of Credit Facility [Line Items]                
Letters of credit outstanding         $ 186,300,000 $ 149,500,000    
Debt Instrument, Par Value         3,448,200,000 3,980,000,000    
Gain on extinguishment of debt         392,900,000 16,200,000 $ 0  
Unamortized Debt Issuance Expense         29,100,000 16,800,000    
Hedge Obligations [Member]                
Line of Credit Facility [Line Items]                
Credit facility, amount outstanding         (500,000)      
Term Loan [Member]                
Line of Credit Facility [Line Items]                
Long-term Line of Credit, Noncurrent               $ 200,000,000
Amapa's Debt [Member]                
Line of Credit Facility [Line Items]                
Repayments of Debt   $ 100,800,000            
Senior Notes - $400 Million [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Repurchased Face Amount       $ 1,300,000 36,000,000 5,000,000    
Debt Instrument, Face Amount         $ 400,000,000 400,000,000    
Note Redemption Price, Percent of Principal Amount to be Redeemed         100.00%      
Redemption Price, Percent Of Principal In The Event Of Change Of Control         101.00%      
Debt Instrument, Par Value         $ 290,800,000 $ 395,000,000    
Stated interest rate         5.90% 5.90%    
Imputed interest rate         5.98% 5.98%    
Debt Repurchase Discount       58.00% 50.00% 38.125%    
Gain on extinguishment of debt         $ 1,900,000.0      
Debt Instrument, Face Amount Exchanged       $ 67,000,000        
Unamortized Debt Issuance Expense         1,100,000 $ 1,800,000    
Debt Instrument, Unamortized Discount         $ 800,000 1,300,000    
Senior Notes - $400 Million [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      
Senior Notes - $400 Million [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      
Five Hundred Million Four Point Eight Zero Percent Senior Note [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Repurchased Face Amount       $ 43,800,000 $ 1,800,000 10,000,000    
Debt Instrument, Face Amount         500,000,000.0 500,000,000    
Debt Instrument, Par Value         306,700,000 $ 490,000,000    
Senior Notes, Noncurrent         $ 500,000,000      
Stated interest rate         4.80% 4.80%    
Imputed interest rate         4.83% 4.83%    
Debt Repurchase Discount       54.30% 50.00% 40.25%    
Gain on extinguishment of debt           $ 4,000,000    
Debt Instrument, Face Amount Exchanged       $ 137,800,000        
Unamortized Debt Issuance Expense         $ 1,100,000 2,200,000    
Debt Instrument, Unamortized Discount         400,000 600,000    
$800 Million 6.25% 2040 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Repurchased Face Amount       $ 45,900,000        
Debt Instrument, Face Amount         800,000,000      
Debt Instrument, Par Value         $ 492,800,000 $ 800,000,000    
Stated interest rate         6.25% 6.25%    
Imputed interest rate         6.34% 6.34%    
Debt Repurchase Discount       52.50%        
Debt Instrument, Face Amount Exchanged       $ 261,300,000        
Unamortized Debt Issuance Expense         $ 4,300,000 $ 7,200,000    
Debt Instrument, Unamortized Discount         5,800,000 9,500,000    
Five Hundred Million Six Point Two Five Percent Two Thousand And Forty [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         $ 500,000,000      
Senior Notes10 Year Tranche [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Redemption Period, Time Period Prior to Maturity Date         3 months      
Note Redemption Price if Redemption Period is During Specified Time Period, Percent of Principal Amount to be Redeemed         100.00%      
Senior Notes, Noncurrent         $ 700,000,000      
Seven Hundred Million Four Point Eight Seven Five Two Thousand Twenty-one Senior Note [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Repurchased Face Amount       $ 58,300,000 10,700,000 10,000,000    
Debt Instrument, Face Amount         700,000,000 700,000,000    
Debt Instrument, Par Value         $ 412,500,000 $ 690,000,000    
Stated interest rate         4.875% 4.875%    
Imputed interest rate         4.89% 4.89%    
Debt Repurchase Discount       52.00% 50.00% 40.50%    
Gain on extinguishment of debt           $ 4,100,000    
Debt Instrument, Face Amount Exchanged       $ 208,500,000        
Unamortized Debt Issuance Expense         $ 1,700,000 3,500,000    
Debt Instrument, Unamortized Discount         200,000 500,000    
Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         544,200,000 0    
Debt Instrument, Par Value         $ 544,200,000      
Stated interest rate         7.75%      
Initial Redemption Price         1.03875      
Redemption Price beginning March 31, 2019         1      
Redemption Price from time to time and Prior to March 31, 2017         1      
Amount in aggregate that can be redeemed on or prior to March 31, 2017         0.35      
Redemption Price of 35 percent or less of Outstanding         1.0775      
Amount to Remain Outstanding Prior to March 31, 2018         0.65      
Discount Received in Debt Exchange of $400M 5.90% Notes       15,500,000        
Debt Instrument, Face Amount Received in Debt Exchange of $400M 5.90% Notes       57,500,000        
Discount Received in Debt Exchange of $800M 6.25% Notes       55,000,000        
Debt Instrument, Face Amount Received in Debt Exchange of $800M 6.25% Notes       203,500,000        
Discount Received in Debt Exchange of $500M 4.80% Notes       30,500,000        
Debt Instrument, Face Amount Received in Debt Exchange of $500M 4.80% Notes       112,900,000        
Discount Received in Debt Exchange of $700M 4.875% Notes       46,000,000        
Imputed interest rate         15.55%      
Debt instrument, Face Amount Received in Debt Exchange of $700M 4.875% Notes       170,300,000        
Unamortized Debt Issuance Expense         $ 9,500,000      
Debt Instrument, Unamortized Discount       147,000,000 131,500,000      
Revolving Credit Facility [Member]                
Line of Credit Facility [Line Items]                
Sublimit for Issuance of Letters of Credit for Australian Tranche         50,000,000      
Sublimit for Australian Swingline Loans         $ 20,000,000      
LIBOR Rate Based on a One-month interest period plus 1 percent         0.01      
Fixed Charge Coverage Ratio         1.0      
Repayments of Debt $ 350,000,000              
Revolving credit facility, borrowing capacity         $ 366,000,000      
Credit facility, amount outstanding         0 [1] 0 [2]    
Credit facility remaining capacity         179,200,000 975,500,000    
Debt Instrument, Par Value         550,000,000 $ 1,125,000,000    
U.S. Tranche         450,000,000      
Imputed interest rate           2.94%    
Sublimit for Issuers of Letters of Credit for U.S. Tranche         250,000,000      
Sublimit for U.S. Swingline Loans         100,000,000      
Australian Tranche         $ 100,000,000      
Revolving Credit Facility [Member] | Maximum [Member]                
Line of Credit Facility [Line Items]                
Base Rate         0.01      
Revolving Credit Facility [Member] | Minimum [Member]                
Line of Credit Facility [Line Items]                
Base Rate         0.005      
Senior Notes Five Hundred Million [Member]                
Line of Credit Facility [Line Items]                
Note Redemption Price, Percent of Principal Amount to be Redeemed         100.00%      
Redemption Price, Percent Of Principal In The Event Of Change Of Control         101.00%      
Limit on Increase in Interest Rate Above Initial Interest Rate, Based on Rating Events         2.00%      
Senior Notes Five Hundred Million [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      
Senior Notes Five Hundred Million [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      
Five Hundred Million Three Point Nine Five Two Thousand Eighteen Senior Note [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Repurchased Face Amount       $ 44,000,000 $ 20,000,000      
Debt Instrument, Face Amount         500,000,000 $ 500,000,000.0    
Debt Instrument, Par Value         $ 311,200,000 $ 480,000,000    
Stated interest rate         3.95% 3.95%    
Cash Used to Repurchase Debt         $ 68,600,000      
Imputed interest rate         6.30% 5.17%    
Debt Repurchase Discount       77.50%   30.875%    
Gain on extinguishment of debt           $ 6,200,000    
Debt Instrument, Face Amount Exchanged         $ 124,800,000      
Interest Rate Due to Rating Downgrades         5.95% 5.70%    
Unamortized Debt Issuance Expense         $ 900,000 $ 2,100,000    
Debt Instrument, Unamortized Discount         1,200,000 2,600,000    
Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         540,000,000 $ 0    
Debt Instrument, Par Value         $ 540,000,000      
Stated interest rate         8.25%      
Repurchase Price of $540M 8.25% Notes if Triggering Event Occurs         1.01      
Initial Redemption Price         1.0825      
Redemption Price after 2018         1      
Redemption Price from time to time and Prior to March 31, 2018         1      
Amount in aggregate that can be redeemed on or prior to March 31, 2018         0.35      
Redemption Price of 35 percent or less of Outstanding         1.0825      
Amount to Remain Outstanding Prior to March 31, 2018         0.65      
In the Event of Default Amount that will Accelerate         0.25      
Imputed interest rate         9.97%      
Unamortized Debt Issuance Expense         $ 10,500,000      
Debt Instrument, Unamortized Discount         32,100,000.0      
Senior Notes30 Year Tranche [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         300,000,000      
Senior Notes One Billion Two Thousand Eleven Offering [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         $ 1,000,000,000      
Note Redemption Price, Percent of Principal Amount to be Redeemed         100.00%      
Redemption Price, Percent Of Principal In The Event Of Change Of Control         101.00%      
Senior Notes One Billion Two Thousand Eleven Offering [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      
Senior Notes One Billion Two Thousand Eleven Offering [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      
Senior Notes One Billion Two Thousand Ten Offering [Member]                
Line of Credit Facility [Line Items]                
Debt Instrument, Face Amount         $ 1,000,000,000      
Note Redemption Price, Percent of Principal Amount to be Redeemed         100.00%      
Senior Notes One Billion Two Thousand Ten Offering [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      
Senior Notes One Billion Two Thousand Ten Offering [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      
Debt Repurchase [Member] | Senior Notes - $400 Million [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt     $ 18,000,000 $ 300,000        
Debt Repurchase [Member] | Five Hundred Million Four Point Eight Zero Percent Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       15,600,000 $ 900,000      
Debt Repurchase [Member] | $800 Million 6.25% 2040 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       15,000,000        
Debt Repurchase [Member] | Seven Hundred Million Four Point Eight Seven Five Two Thousand Twenty-one Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       20,000,000 $ 5,300,000      
Debt Repurchase [Member] | Five Hundred Million Three Point Nine Five Two Thousand Eighteen Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       7,100,000        
Exchange of Debt [Member] | Senior Notes - $400 Million [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       24,500,000        
Exchange of Debt [Member] | Five Hundred Million Four Point Eight Zero Percent Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       54,600,000        
Exchange of Debt [Member] | $800 Million 6.25% 2040 Senior Notes [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       107,300,000        
Exchange of Debt [Member] | Seven Hundred Million Four Point Eight Seven Five Two Thousand Twenty-one Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt       $ 83,100,000        
Exchange of Debt [Member] | Five Hundred Million Three Point Nine Five Two Thousand Eighteen Senior Note [Member]                
Line of Credit Facility [Line Items]                
Gain on extinguishment of debt     $ 54,900,000          
[1] As of December 31, 2015, no loans were drawn under the $550.0 million ABL Facility and we had total availability of $366.0 million as a result of borrowing base limitations. As of December 31, 2015, the principal amount of letter of credit obligations totaled $186.3 million and commodity hedge obligations totaled $0.5 million, thereby further reducing available borrowing capacity on our ABL Facility to $179.2 million.
[2] As of December 31, 2014, we had no revolving loans drawn under the revolving credit agreement, which had total availability of $1.125 billion as of December 31, 2014. As of December 31, 2014, the principal amount of letter of credit obligations totaled $149.5 million, thereby reducing available borrowing capacity to $975.5 million.