Other Current Assets (Tables)
 6 Months Ended
Jun. 30, 2014
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Summary of Other Current Assets

Other current assets consisted of:

 

(in $ millions)

    June 30,
2014		      December 31,
2013		  

Restricted cash

    $ 35       $ 44   

Sales and use tax receivables

      28         30   

Prepaid expenses

      21         22   

Prepaid incentives

      12         20   

Derivative assets

      1         3   

Other

      15         15   
  

 

 

     

 

 

  
   $ 112       $ 134