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Property, plant and equipment (Tables) | 12 Months Ended
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Dec. 31, 2017
Property, plant and equipment [abstract] |
Schedule of property, plant and equipment |
| Buildings, plant installations and machinery |  | Finance leases |  | Other |  |  | TOTAL |
Cost at January 1, 2017 | $ | 4,549,816 |  | $ | 206,260 |  | $ | 272,878 |  |  | $ | 5,028,954 |
Additions | 98,780 |  | 7,667 |  | 5,001 |  |  | 111,448 |
Disposals and other | 328 |  | 1,846 |  | (2,386 | ) |  | (212 | )
Cost at December 31, 2017 | 4,648,924 |  | 215,773 |  | 275,493 |  |  | 5,140,190 |
Accumulated depreciation at January 1, 2017 | 1,752,540 |  | 18,557 |  | 140,388 |  |  | 1,911,485 |
Disposals and other | (2,066 | ) | — |  | (673 | ) |  | (2,739 | )
Depreciation | 205,843 |  | 15,370 |  | 11,905 |  |  | 233,118 |
Accumulated depreciation at December 31, 2017 | 1,956,317 |  | 33,927 |  | 151,620 |  |  | 2,141,864 |
Net book value at December 31, 2017 | $ | 2,692,607 |  | $ | 181,846 |  | $ | 123,873 |  |  | $ | 2,998,326 |
| Buildings, plant installations and machinery |  | Finance leases |  | Other |  |  | TOTAL |
Cost at January 1, 2016 | $ | 4,521,835 |  | $ | 121,849 |  | $ | 204,483 |  |  | $ | 4,848,167 |
Additions | 35,644 |  | 87,800 |  | 74,303 |  |  | 197,747 |
Disposals and other | (7,663 | ) | (3,389 | ) | (5,908 | ) |  | (16,960 | )
Cost at December 31, 2016 | 4,549,816 |  | 206,260 |  | 272,878 |  |  | 5,028,954 |
Accumulated depreciation at January 1, 2016 | 1,545,834 |  | 6,853 |  | 136,698 |  |  | 1,689,385 |
Disposals and other | (945 | ) | — |  | (5,908 | ) |  | (6,853 | )
Depreciation | 207,651 |  | 11,704 |  | 9,598 |  |  | 228,953 |
Accumulated depreciation at December 31, 2016 | 1,752,540 |  | 18,557 |  | 140,388 |  |  | 1,911,485 |
Net book value at December 31, 2016 | $ | 2,797,276 |  | $ | 187,703 |  | $ | 132,490 |  |  | $ | 3,117,469 |

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- Definition The disclosure of detailed information about property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73&doctype=Standard -URIDate 2017-03-09 + Details
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