Quarterly report pursuant to Section 13 or 15(d)

DEBT (Details)

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DEBT (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Long-term debt    
Long-term debt gross $ 682 $ 653
Unamortized discount (35) (35)
Fair value adjustment due to hedge on indebtedness 77 88
Capital leases 66 53
Total long-term debt 790 759
Less: Current maturities of long-term debt (54) (61)
Long-term debt 736 698
Principal payments required on long-term debt    
2013 47  
2014 46  
2015 66  
2016 77  
2017 13  
Export financing loan, 4.5%, due 2013
   
Long-term debt    
Debt instrument interest rate (as a percent) 4.50%  
Long-term debt gross 11 23
Debentures, 6.75%, due 2027
   
Long-term debt    
Debt instrument interest rate (as a percent) 6.75%  
Long-term debt gross 58 58
Debentures, 7.125%, due 2028
   
Long-term debt    
Debt instrument interest rate (as a percent) 7.125%  
Long-term debt gross 250 250
Debentures, 5.65%, due 2098 (effective interest rate 7.48%)
   
Long-term debt    
Debt instrument interest rate (as a percent) 5.65%  
Effective interest rate (as a percent) 7.48%  
Long-term debt gross 165 165
Credit facilities related to consolidated joint ventures
   
Long-term debt    
Long-term debt gross 112 88
Other long-term debt
   
Long-term debt    
Long-term debt gross $ 86 $ 69