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Revenues and Accounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2018
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents the reconciliation of our revenues from contracts with customers (as described above for each segment) to segment revenues and total revenues as disclosed in our Consolidated Statement of Operations (in millions):
Year Ended December 31, 2018 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total
Revenues from contracts with customers |  | $ | 1,976 |  |  | $ | 1,136 |  |  | $ | 32,700 |  |  | $ | 35,812 |
Other items in revenues |  | 14 |  |  | 25 |  |  | 122 |  |  | 161 |
Total revenues of reportable segments |  | $ | 1,990 |  |  | $ | 1,161 |  |  | $ | 32,822 |  |  | $ | 35,973 |
Intersegment revenues |  |  |  |  |  |  |  | (1,918 | )
Total revenues |  |  |  |  |  |  |  | $ | 34,055 |
Contracts with Customers, Assets and Liabilities | The following is a reconciliation of trade accounts receivable from revenues from contracts with customers to total Trade accounts receivable and other receivables, net as presented on our Consolidated Balance Sheet (in millions):
| December 31,
| 2018 |  | 2017
Trade accounts receivable arising from revenues from contracts with customers | $ | 2,277 |  |  | $ | 2,584 |
Other trade accounts receivables and other receivables (1) | 2,732 |  |  | 3,709 |
Impact due to contractual rights of offset with counterparties | (2,555 | ) |  | (3,264 | )
Trade accounts receivable and other receivables, net | $ | 2,454 |  |  | $ | 3,029 |
(1) | The balance is comprised primarily of accounts receivable associated with buy/sell arrangements that are not within the scope of Topic 606.
The following table presents the change in the contract liability balance during the year ended December 31, 2018 (in millions):
|  | Contract Liabilities
Balance at December 31, 2017 |  | $ | 90 |
Amounts recognized as revenue |  | (81 | )
Additions (1) (2) |  | 332 |
Other |  | (3 | )
Balance at December 31, 2018 |  | $ | 338 |
(1) | Includes approximately $116 million associated with crude oil sales agreements that are entered into in conjunction with storage arrangements and future inventory exchanges. Such amount is expected to be recognized as revenue in the first quarter of 2019.
(2) | Includes $100 million associated with long-term capacity agreements with Cactus II Pipeline LLC. See Note 9 for additional information.
Remaining Performance Obligations | The following table presents the amount of consideration associated with remaining performance obligations for the population of contracts with external customers meeting the presentation requirements as of December 31, 2018 (in millions):
| 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 and Thereafter
Pipeline revenues supported by minimum volume commitments and long-term capacity agreements (1) | $ | 157 |  |  | $ | 198 |  |  | $ | 189 |  |  | $ | 188 |  |  | $ | 188 |  |  | $ | 635 |
Long-term storage, terminalling and throughput agreement revenues | 389 |  |  | 312 |  |  | 225 |  |  | 168 |  |  | 132 |  |  | 436 |
Total | $ | 546 |  |  | $ | 510 |  |  | $ | 414 |  |  | $ | 356 |  |  | $ | 320 |  |  | $ | 1,071 |
(1) | Includes revenues from certain contracts for which the amount and timing of revenue is subject to the completion of underlying construction projects.
Supply and Logistics |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents our Supply and Logistics segment revenues from contracts with customers disaggregated by type of activity (in millions):
|  | Year Ended December 31, 2018
Supply and Logistics segment revenues from contracts with customers |  |
Crude oil transactions |  | $ | 29,592 |
NGL and other transactions |  | 3,108 |
Total Supply and Logistics segment revenues from contracts with customers |  | $ | 32,700 |
Transportation |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents our Transportation segment revenues from contracts with customers disaggregated by type of activity (in millions):
|  | Year Ended December 31, 2018
Transportation segment revenues from contracts with customers |  |
Tariff activities: |  |
Crude oil pipelines |  | $ | 1,724 |
NGL pipelines |  | 103 |
Total tariff activities |  | 1,827 |
Trucking |  | 149 |
Total Transportation segment revenues from contracts with customers |  | $ | 1,976 |
Facilities |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents our Facilities segment revenues from contracts with customers disaggregated by type of activity (in millions):
|  | Year Ended December 31, 2018
Facilities segment revenues from contracts with customers |  |
Crude oil, NGL and other terminalling and storage |  | $ | 688 |
NGL and natural gas processing and fractionation |  | 364 |
Rail load / unload |  | 84 |
Total Facilities segment revenues from contracts with customers |  | $ | 1,136 |

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