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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2017
Oxy |
Related Party Transactions |
Schedule of related party transactions | The impact to our Consolidated Statements of Operations from those transactions is included below (in millions):
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Revenues | $ | 920 |  |  | $ | 655 |  |  | $ | 866 |
Purchases and related costs (1) | $ | (253 | ) |  | $ | 42 |  |  | $ | 41 |
(1) | Crude oil purchases that are part of inventory exchanges under buy/sell transactions are netted with the related sales, with any margin presented in “Purchases and related costs” in our Consolidated Statements of Operations.
We currently have a netting arrangement with Oxy. Our gross receivable and payable amounts with Oxy were as follows (in millions):
| December 31,
| 2017 |  | 2016
Trade accounts receivable and other receivables | $ | 1,075 |  |  | $ | 789 |
Accounts payable | $ | 990 |  |  | $ | 836 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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