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Inventories (Tables) | 9 Months Ended
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Sep. 30, 2013
Inventory, Net [Abstract] |
Schedule of Inventory | The following table summarizes our inventory for the periods presented:
Millions of dollars |  | September 30, 2013 |  | December 31, 2012
Finished products |  | $ | 2,197 |  |  | $ | 1,948 |
Raw materials and work in process |  | 639 |  |  | 596 |
Gross inventories |  | 2,836 |  |  | 2,544 |
Less: excess of FIFO cost over LIFO cost |  | (169 | ) |  | (190 | )
Total inventories |  | $ | 2,667 |  |  | $ | 2,354 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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