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v3.19.1

Supplemental Balance Sheet Data | 3 Months Ended
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Mar. 31, 2019
Statement of Financial Position [Abstract] |
Additional Financial Information Disclosure | Supplemental Balance Sheet Data The following schedule presents a summary of inventories by major class:
|  | March 31, 2019 |  | December 31, 2018
|  | LIFO |  | Non-LIFO |  | Total |  | LIFO |  | Non-LIFO |  | Total
Raw materials |  | $ | 96 |  |  | $ | 248 |  |  | $ | 344 |  |  | $ | 99 |  |  | $ | 263 |  |  | $ | 362 |
Work in process |  | 119 |  |  | 93 |  |  | 212 |  |  | 120 |  |  | 94 |  |  | 214 |
Finished goods |  | 494 |  |  | 725 |  |  | 1,219 |  |  | 461 |  |  | 692 |  |  | 1,153 |
Supplies and other |  | — |  |  | 278 |  |  | 278 |  |  | — |  |  | 275 |  |  | 275 |
|  | 709 |  |  | 1,344 |  |  | 2,053 |  |  | 680 |  |  | 1,324 |  |  | 2,004 |
Excess of FIFO or weighted-average cost over LIFO cost |  | (196 | ) |  | — |  |  | (196 | ) |  | (191 | ) |  | — |  |  | (191 | )
Total |  | $ | 513 |  |  | $ | 1,344 |  |  | $ | 1,857 |  |  | $ | 489 |  |  | $ | 1,324 |  |  | $ | 1,813 |
Inventories are valued at the lower of cost or 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:
| March 31, 2019 |  | December 31, 2018
Land | $ | 168 |  |  | $ | 169 |
Buildings | 2,814 |  |  | 2,787 |
Machinery and equipment | 14,194 |  |  | 14,059 |
Construction in progress | 648 |  |  | 699 |
| 17,824 |  |  | 17,714 |
Less accumulated depreciation | (10,685 | ) |  | (10,555 | )
Total | $ | 7,139 |  |  | $ | 7,159 |

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