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Inventories (Notes) | 3 Months Ended
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Mar. 31, 2019
Inventory, Net [Abstract] |
Inventories | INVENTORIES Inventories consisted of the following:
| March 31, 2019 |  | December 31, 2018
Natural gas, NGLs and refined products | $ | 760 |  |  | $ | 833 |
Crude oil | 589 |  |  | 506 |
Spare parts and other | 373 |  |  | 338 |
Total inventories | $ | 1,722 |  |  | $ | 1,677 |
We utilize commodity derivatives to manage price volatility associated with its natural gas inventories. Changes in fair value of designated hedged inventory are recorded in inventory on our consolidated balance sheets and cost of products sold in our consolidated statements of operations.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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