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Other Non-Current Assets
9 Months Ended
Sep. 30, 2011
Other Non-Current Assets [Abstract] 
Other Non-Current Assets
 
8.  Other Non-Current Assets
 
Other non-current assets consisted of:
 
                 
    September 30,
 		    December 31,
 		 
(in $ millions)   2011     2010  
 
Development advances
    108       113  
Deferred financing costs
    107       37  
Pension asset
    20       17  
Derivative assets
    —       5  
Other
    31       32  
                 
      266       204