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Objectives and Strategies for Using Derivatives (Tables)
 12 Months Ended
Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of fair values of derivative instruments
Set forth below is a summary of the total designated and undesignated fair values of our derivative instruments:
 
Assets
 
Liabilities
 
2014
 
2013
 
2014
 
2013
Foreign currency exchange contracts
$
54

 
$
34

 
$
102

 
$
49

Interest rate contracts
—

 
22

 
4

 
—

Commodity price contracts
—

 
6

 
10

 
—

Total
$
54

 
$
62

 
$
116

 
$
49