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Other Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Other Financial Information |
Other financial information is as follows: |  |  |  |  |  |
| Year ended December 31 |
| 2018 |  |  |  | 2017 |  |  | 2016 |
Total financing interest and debt costs | $ | 921 |  |  |  | $ | 902 |  |  | $ | 753 |
Less: Capitalized interest | 173 |  |  |  | 595 |  |  | 552 |
Interest and debt expense | $ | 748 |  |  |  | $ | 307 |  |  | $ | 201 |
Research and development expenses | $ | 453 |  |  |  | $ | 433 |  |  | $ | 476 |
Excess of replacement cost over the carrying value of inventories (LIFO method) | $ | 5,134 |  |  |  | $ | 3,937 |  |  | $ | 2,942 |
LIFO profits (losses) on inventory drawdowns included in earnings | $ | 26 |  |  |  | $ | (5 | ) |  | $ | (88 | )
Foreign currency effects* | $ | 611 |  |  |  | $ | (446 | ) |  | $ | 58 |
* Includes $416, $(45) and $1 in 2018, 2017 and 2016, respectively, for the company’s share of equity affiliates’ foreign currency effects.

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