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Other Income (Expense), Net (Tables)
 12 Months Ended
Dec. 31, 2012
Other Income and Expenses [Abstract]  
Schedule of Other Income (Expense), Net
The following table presents the detail of other income (expense), net, for the periods presented (in millions):
 
Year Ended December 31,
 
2012
 
2011
 
2010
Interest income
$
14

 
$
4

 
$
1

Foreign currency exchange losses, net
(9
)
 
(29
)
 
(1
)
Other
2

 
6

 
(2
)
Other income (expense), net
$
7

 
$
(19
)
 
$
(2
)