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Supplemental Balance Sheet Data | 9 Months Ended
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Sep. 30, 2017
Statement of Financial Position [Abstract] |
Additional Financial Information Disclosure | Supplemental Balance Sheet Data The following schedule presents a summary of inventories by major class:
|  | September 30, 2017 |  | December 31, 2016
|  | LIFO |  | Non-LIFO |  | Total |  | LIFO |  | Non-LIFO |  | Total
Raw materials |  | $ | 88 |  |  | $ | 249 |  |  | $ | 337 |  |  | $ | 93 |  |  | $ | 236 |  |  | $ | 329 |
Work in process |  | 106 |  |  | 97 |  |  | 203 |  |  | 114 |  |  | 89 |  |  | 203 |
Finished goods |  | 396 |  |  | 687 |  |  | 1,083 |  |  | 430 |  |  | 600 |  |  | 1,030 |
Supplies and other |  | — |  |  | 298 |  |  | 298 |  |  | — |  |  | 280 |  |  | 280 |
|  | 590 |  |  | 1,331 |  |  | 1,921 |  |  | 637 |  |  | 1,205 |  |  | 1,842 |
Excess of FIFO or weighted-average cost over LIFO cost |  | (173 | ) |  | — |  |  | (173 | ) |  | (163 | ) |  | — |  |  | (163 | )
Total |  | $ | 417 |  |  | $ | 1,331 |  |  | $ | 1,748 |  |  | $ | 474 |  |  | $ | 1,205 |  |  | $ | 1,679 |
Inventories are valued at the lower of cost and net realizable value, determined on the FIFO or weighted-average cost methods, and at the lower of cost or market, determined on the LIFO cost method. The following schedule presents a summary of property, plant and equipment, net:
| September 30, 2017 |  | December 31, 2016
Land | $ | 171 |  |  | $ | 163 |
Buildings | 2,787 |  |  | 2,612 |
Machinery and equipment | 14,328 |  |  | 13,591 |
Construction in progress | 337 |  |  | 488 |
| 17,623 |  |  | 16,854 |
Less accumulated depreciation | (10,306 | ) |  | (9,685 | )
Total | $ | 7,317 |  |  | $ | 7,169 |

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