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Goodwill (Tables) | 9 Months Ended
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Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill by segment and changes during the period | Goodwill by segment and changes in goodwill is reflected in the following table (in millions):
| Transportation |  | Facilities |  | Supply and Logistics |  | Total
Balance at December 31, 2015 | $ | 815 |  |  | $ | 1,087 |  |  | $ | 503 |  |  | $ | 2,405 |
Foreign currency translation adjustments | 12 |  |  | 5 |  |  | 2 |  |  | 19 |
Dispositions and reclassifications to assets held for sale | (15 | ) |  | (56 | ) |  | — |  |  | (71 | )
Balance at September 30, 2016 | $ | 812 |  |  | $ | 1,036 |  |  | $ | 505 |  |  | $ | 2,353 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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