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Revenues - Segment Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 8,398 | $ 6,667
Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 450 |
Total revenues | 253 | 225
Facilities |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 282 |
Total revenues | 141 | 134
Supply and Logistics |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 8,174 |
Total revenues | 8,111 | 6,395
Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 8,906 |
Other items in revenues | (48) |
Total revenues | 8,858 | 7,082
Operating Segments | Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 450 |
Other items in revenues | 4 |
Total revenues | 454 | 389
Operating Segments | Facilities |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 282 |
Other items in revenues | 10 |
Total revenues | 292 | 293
Operating Segments | Supply and Logistics |  |
Disaggregation of Revenue [Line Items] |  |
Revenues from contracts with customers | 8,174 |
Other items in revenues | (62) |
Total revenues | 8,112 | 6,400
Intersegment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | (460) | (415)
Intersegment | Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | (201) | (164)
Intersegment | Facilities |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | (151) | (159)
Intersegment | Supply and Logistics |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ (1) | $ (5)

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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