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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Summary of Property, Plant and Equipment | Property, plant and equipment with associated accumulated depreciation is shown below:
|  | Estimated Useful Lives |  | December 31,
(In millions) |  | 2018 |  | 2017
Natural gas gathering and NGL transportation pipelines and facilities |  | 5 - 30 years |  | $ | 5,926 |  |  | $ | 5,178 |
Processing, fractionation and storage facilities |  | 10 - 40 years |  | 5,336 |  |  | 3,893 |
Pipelines and related assets |  | 15 - 51 years |  | 2,560 |  |  | 2,253 |
Barges and towing vessels |  | 20 years |  | 620 |  |  | 490 |
Terminals and related assets |  | 4 - 30 years |  | 1,178 |  |  | 821 |
Refinery related assets |  | 5 - 30 years |  | 938 |  |  | — |
Land, building, office equipment and other |  | 3 - 35 years |  | 957 |  |  | 770 |
Construction-in-progress |  |  |  | 801 |  |  | 1,057 |
Total |  |  |  | 18,316 |  |  | 14,462 |
Less accumulated depreciation |  |  |  | 3,677 |  |  | 2,275 |
Property, plant and equipment, net |  |  |  | $ | 14,639 |  |  | $ | 12,187 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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