Debt Obligations - Level 4 (Details) - USD ($)
$ in Millions
2 Months Ended 10 Months Ended 12 Months Ended
Dec. 31, 2014
Oct. 24, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2013
May 31, 2012
Debt Instrument [Line Items]            
Current Fiscal Year End Date     --12-31 --12-31    
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months     $ 36      
Long-term Debt, Excluding Current Maturities     1,167 $ 1,169    
Long-term Debt, Current Maturities     36 36    
Loss on extinguishment of debt $ 0 $ 0 9 7    
Operating Leases, Future Minimum Payments Due, Next Twelve Months     15      
Long-term Debt, Maturities, Repayments of Principal in Year Two     0      
Operating Leases, Future Minimum Payments Receivable, in Two Years     11      
Long-term Debt, Maturities, Repayments of Principal in Year Three     0      
Operating Leases, Future Minimum Payments, Due in Three Years     9      
Long-term Debt, Maturities, Repayments of Principal in Year Four     0      
Operating Leases, Future Minimum Payments Receivable, in Four Years     7      
Long-term Debt, Maturities, Repayments of Principal in Year Five     1,100      
Operating Leases, Future Minimum Payments, Due in Five Years     6      
Long-term Debt, Maturities, Repayments of Principal after Year Five     202      
Operating Leases, Future Minimum Payments, Due Thereafter     15      
Long-term Debt, Gross     1,338      
Operating Leases, Future Minimum Payments Due     63      
Operating Leases, Rent Expense $ 4 $ 16 15 13    
Exit ABL Facility [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities     0 0    
Long-term Debt, Current Maturities     0 0    
Other Debt Obligations [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities     0 0    
Long-term Debt, Current Maturities     0 3    
Senior secured note, maturity June15, 2014 [Member] | Senior notes [Member]            
Debt Instrument [Line Items]            
Interest rate at period end         12.50%  
10% senior secured notes, due October 2020 [Member]            
Debt Instrument [Line Items]            
Senior Notes     1,100      
Aggregate principal amount           $ 250
Issue price           100.00%
10.0% senior secured notes, maturity October 15, 2020 [Member]            
Debt Instrument [Line Items]            
Interest rate at period end         10.00%  
JP Morgan Chase, Term Loan Tranche B-2-B, Maturity May 4, 2015 [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Current Maturities          
New First Lien Notes [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities     995 977    
Long-term Debt, Current Maturities     0 0    
New Second Lien Notes [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities     172 192    
Long-term Debt, Current Maturities     0 0    
Agricultural Bank of China, Fixed Asset Loan, Maturity June 30, 2015 [Member]            
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities     0 0    
Long-term Debt, Current Maturities     $ 36 $ 33