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Inventories, Net (Notes) | 3 Months Ended
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Mar. 31, 2020
Inventory, Net [Abstract] |
Inventories, Net | 7. Inventories, Net. Inventories, net consists of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ |  | 2020 |  | 2019
​ | ​ | (in millions)
Raw materials | ​ | $ | 152 | ​ | $ | 206
Work in process | ​ |  | 89 | ​ |  | 94
Finished goods | ​ |  | 1,342 | ​ |  | 1,495
​ | ​ | $ | 1,583 | ​ | $ | 1,795
​ As of March 31, 2020, our Energy segment had inventories, net with a carrying value in excess of net realizable value. As a result, our Energy segment recorded a write-down of its inventories of $58 million, which is included in cost of goods sold in the condensed consolidated statements of operations for the three months ended March 31, 2020. The write-down represents the difference between the carrying value of inventories accounted for using the first-in-first-out method and selling prices for refined products subsequent to March 31, 2020.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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- References No definition available. + Details
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