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Revenues and Accounts Receivable (Tables) | 6 Months Ended
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Jun. 30, 2019
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents the reconciliation of our revenues from contracts with customers to segment revenues and total revenues as disclosed in our Condensed Consolidated Statements of Operations (in millions):
Three Months Ended June 30, 2019 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total
Revenues from contracts with customers |  | $ | 551 |  |  | $ | 283 |  |  | $ | 7,864 |  |  | $ | 8,698 |
Other items in revenues |  | 8 |  |  | 8 |  |  | 51 |  |  | 67 |
Total revenues of reportable segments |  | $ | 559 |  |  | $ | 291 |  |  | $ | 7,915 |  |  | $ | 8,765 |
Intersegment revenues |  |  |  |  |  |  |  | (512 | )
Total revenues |  |  |  |  |  |  |  | $ | 8,253 |
Three Months Ended June 30, 2018 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total
Revenues from contracts with customers |  | $ | 470 |  |  | $ | 278 |  |  | $ | 8,124 |  |  | $ | 8,872 |
Other items in revenues |  | 5 |  |  | 6 |  |  | (343 | ) |  | (332 | )
Total revenues of reportable segments |  | $ | 475 |  |  | $ | 284 |  |  | $ | 7,781 |  |  | $ | 8,540 |
Intersegment revenues |  |  |  |  |  |  |  | (460 | )
Total revenues |  |  |  |  |  |  |  | $ | 8,080 |
Six Months Ended June 30, 2019 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total
Revenues from contracts with customers |  | $ | 1,095 |  |  | $ | 563 |  |  | $ | 15,710 |  |  | $ | 17,368 |
Other items in revenues |  | 20 |  |  | 26 |  |  | 228 |  |  | 274 |
Total revenues of reportable segments |  | $ | 1,115 |  |  | $ | 589 |  |  | $ | 15,938 |  |  | $ | 17,642 |
Intersegment revenues |  |  |  |  |  |  |  | (1,014 | )
Total revenues |  |  |  |  |  |  |  | $ | 16,628 |
Six Months Ended June 30, 2018 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total
Revenues from contracts with customers |  | $ | 920 |  |  | $ | 560 |  |  | $ | 16,298 |  |  | $ | 17,778 |
Other items in revenues |  | 9 |  |  | 16 |  |  | (405 | ) |  | (380 | )
Total revenues of reportable segments |  | $ | 929 |  |  | $ | 576 |  |  | $ | 15,893 |  |  | $ | 17,398 |
Intersegment revenues |  |  |  |  |  |  |  | (920 | )
Total revenues |  |  |  |  |  |  |  | $ | 16,478 |
Contracts with customers, change in contract liability balance | The following table presents the change in the contract liability balance during the six months ended June 30, 2019 (in millions):
|  | Contract Liabilities
Balance at December 31, 2018 |  | $ | 338 |
Amounts recognized as revenue |  | (225 | )
Additions (1) |  | 206 |
Other |  | (1 | )
Balance at June 30, 2019 |  | $ | 318 |
(1) Includes approximately $130 million associated with crude oil sales agreements that were entered into in conjunction with storage arrangements and future inventory exchanges. Such amount is expected to be recognized as revenue in the third quarter of 2019. The inventory that has been sold under these agreements is reflected in “Other current assets” on our Condensed Consolidated Balance Sheet until all of our performance obligations are complete. 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 Condensed Consolidated Balance Sheets (in millions):
| June 30, 2019 |  | December 31, 2018
Trade accounts receivable arising from revenues from contracts with customers | $ | 2,563 |  |  | $ | 2,277 |
Other trade accounts receivables and other receivables (1) | 3,722 |  |  | 2,732 |
Impact due to contractual rights of offset with counterparties | (3,450 | ) |  | (2,555 | )
Trade accounts receivable and other receivables, net | $ | 2,835 |  |  | $ | 2,454 |
(1) The balance is comprised primarily of accounts receivable associated with buy/sell arrangements that are not within the scope of Topic 606.
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 June 30, 2019 (in millions):
| Remainder of 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 and Thereafter
Pipeline revenues supported by minimum volume commitments and capacity agreements (1) | $ | 79 |  |  | $ | 156 |  |  | $ | 163 |  |  | $ | 159 |  |  | $ | 158 |  |  | $ | 805 |
Storage, terminalling and throughput agreement revenues | 220 |  |  | 361 |  |  | 256 |  |  | 195 |  |  | 160 |  |  | 355 |
Total | $ | 299 |  |  | $ | 517 |  |  | $ | 419 |  |  | $ | 354 |  |  | $ | 318 |  |  | $ | 1,160 |
(1) | Calculated as volumes committed under contracts multiplied by the current applicable tariff rate.
Supply and Logistics |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following tables present our Supply and Logistics segment, Transportation segment and Facilities segment revenues from contracts with customers disaggregated by type of activity (in millions):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Supply and Logistics segment revenues from contracts with customers |  |  |  |  |  |  |
Crude oil transactions | $ | 7,595 |  |  | $ | 7,649 |  |  | $ | 14,532 |  |  | $ | 14,672 |
NGL and other transactions | 269 |  |  | 475 |  |  | 1,178 |  |  | 1,626 |
Total Supply and Logistics segment revenues from contracts with customers | $ | 7,864 |  |  | $ | 8,124 |  |  | $ | 15,710 |  |  | $ | 16,298 |
Transportation |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue |
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Transportation segment revenues from contracts with customers |  |  |  |  |  |  |
Tariff activities: |  |  |  |  |  |  |
Crude oil pipelines | $ | 494 |  |  | $ | 412 |  |  | $ | 971 |  |  | $ | 801 |
NGL pipelines | 22 |  |  | 24 |  |  | 50 |  |  | 51 |
Total tariff activities | 516 |  |  | 436 |  |  | 1,021 |  |  | 852 |
Trucking | 35 |  |  | 34 |  |  | 74 |  |  | 68 |
Total Transportation segment revenues from contracts with customers | $ | 551 |  |  | $ | 470 |  |  | $ | 1,095 |  |  | $ | 920 |
Facilities |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue |
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Facilities segment revenues from contracts with customers |  |  |  |  |  |  |
Crude oil, NGL and other terminalling and storage | $ | 177 |  |  | $ | 171 |  |  | $ | 349 |  |  | $ | 337 |
NGL and natural gas processing and fractionation | 87 |  |  | 91 |  |  | 175 |  |  | 191 |
Rail load / unload | 19 |  |  | 16 |  |  | 39 |  |  | 32 |
Total Facilities segment revenues from contracts with customers | $ | 283 |  |  | $ | 278 |  |  | $ | 563 |  |  | $ | 560 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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