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Inventories
6 Months Ended
Jun. 30, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories
 
As of
 
As of
 
June 30,
2012
 
December 31, 2011
 
(In $ millions)
Finished goods
525

 
511

Work-in-process
37

 
38

Raw materials and supplies
164

 
163

Total
726

 
712