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Other Financial Information (Tables)
 12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Other Financial Information
Other financial information is as follows:

 
 
 
 
 
 
 
Year ended December 31
 
 
2017

 
 
2016

 
2015

Total financing interest and debt costs
$
902

 
 
$
753

 
$
495

Less: Capitalized interest
595

 
 
552

 
495

Interest and debt expense
$
307

 
 
$
201

 
$
—

Research and development expenses
$
433

 
 
$
476

 
$
601

Excess of replacement cost over the carrying value of inventories (LIFO method)
$
3,937

 
 
$
2,942

 
$
3,745

LIFO losses on inventory drawdowns included in earnings
$
(5
)
 
 
$
(88
)
 
$
(65
)
Foreign currency effects*
$
(446
)
 
 
$
58

 
$
769

* Includes $(45), $1 and $344 in 2017, 2016 and 2015, respectively, for the company’s share of equity affiliates’ foreign currency effects.