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Other Financial Information (Tables) | 12 Months Ended
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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.

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