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Inventories (Tables) | 6 Months Ended
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Jun. 30, 2020
Inventory, Net [Abstract] |
Schedule of Inventory | The following table summarizes our inventories at June 30, 2020 and December 31, 2019:
Millions of dollars |  | June 30, 2020 |  | December 31, 2019
Finished products |  | $ | 1,638 |  |  | $ | 1,979 |
Raw materials and work in process |  | 619 |  |  | 602 |
|  | 2,257 |  |  | 2,581 |
Less: excess of FIFO cost over LIFO cost |  | (128 | ) |  | (143 | )
Total inventories |  | $ | 2,129 |  |  | $ | 2,438 |

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