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Operating Segments (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) segment | Jun. 30, 2014 USD ($)
Operating Segments |  |  |  |
Operating segments number | segment |  |  | 3 |
Revenues: |  |  |  |
Revenues | $ 6,663 | $ 11,195 | $ 12,605 | $ 22,878
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments |  |  |  |
Equity earnings in unconsolidated entities | 52 | 23 | 89 | 44
Segment profit | 371 | 488 | 884 | 1,097
Maintenance capital | 52 | 48 | 102 | 95
Transportation |  |  |  |
Revenues: |  |  |  |
Revenues | 180 | 195 | 366 | 376
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments |  |  |  |
Equity earnings in unconsolidated entities | 52 | 23 | 89 | 44
Segment profit | 186 | 221 | 428 | 427
Maintenance capital | 33 | 42 | 66 | 76
Facilities |  |  |  |
Revenues: |  |  |  |
Revenues | 137 | 144 | 261 | 301
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments |  |  |  |
Segment profit | 144 | 134 | 285 | 288
Maintenance capital | 17 | 5 | 32 | 15
Supply and Logistics |  |  |  |
Revenues: |  |  |  |
Revenues | 6,346 | 10,856 | 11,978 | 22,201
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments |  |  |  |
Segment profit | 41 | 133 | 171 | 382
Maintenance capital | 2 | 1 | 4 | 4
Interest expense related to hedged inventory purchases | 2 | 5 | 3 | 7
Operating Segments |  |  |  |
Revenues: |  |  |  |
Revenues | 7,022 | 11,549 | 13,312 | 23,602
Operating Segments | Transportation |  |  |  |
Revenues: |  |  |  |
Revenues | 402 | 412 | 803 | 798
Operating Segments | Facilities |  |  |  |
Revenues: |  |  |  |
Revenues | 269 | 277 | 525 | 576
Operating Segments | Supply and Logistics |  |  |  |
Revenues: |  |  |  |
Revenues | 6,351 | 10,860 | 11,984 | 22,228
Intersegment |  |  |  |
Revenues: |  |  |  |
Revenues | (359) | (354) | (707) | (724)
Intersegment | Transportation |  |  |  |
Revenues: |  |  |  |
Revenues | (222) | (217) | (437) | (422)
Intersegment | Facilities |  |  |  |
Revenues: |  |  |  |
Revenues | (132) | (133) | (264) | (275)
Intersegment | Supply and Logistics |  |  |  |
Revenues: |  |  |  |
Revenues | $ (5) | $ (4) | $ (6) | $ (27)

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