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Interest Cost Components | 12 Months Ended
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Dec. 31, 2018
Debt Disclosure [Abstract] |
Interest Cost Components | Interest Cost Components
For the year ended December 31, | 2018 |  | 2017 |  | 2016
Amount charged to expense | $ | 378 |  |  | $ | 496 |  |  | $ | 499 |
Amount capitalized | 23 |  |  | 22 |  |  | 32 |
| $ | 401 |  |  | $ | 518 |  |  | $ | 531 |

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