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Intangibles (Tables) | 12 Months Ended
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Dec. 31, 2022
Intangibles Abstract |
Schedule of movements in intangibles |
Schedule of movements in intangibles |  |  |  |  |  |  |  |  |  |  |
| Notes | Goodwill |  | Concessions |  |  | Software |  | Research and development project |  | Total
Balance at December 31, 2020 |  | 3,298 |  | 5,391 |  |  | 76 |  | 531 |  | 9,296
Additions |  | - |  | 431 |  |  | 47 |  | - |  | 478
Disposals |  | - |  | (7) |  |  | - |  | - |  | (7)
Amortization |  | - |  | (240) |  |  | (35) |  | - |  | (275)
Acquisition of NLC | 16(a) | - |  | 1,428 |  |  | - |  | - |  | 1,428
Impairment of discontinued operations | 16(a) | - |  | (1,422) |  |  | - |  | - |  | (1,422)
Translation adjustment |  | (90) |  | (358) |  |  | (2) |  | (37) |  | (487)
Balance at December 31, 2021 |  | 3,208 |  | 5,223 |  |  | 86 |  | 494 |  | 9,011
Cost |  | 3,208 |  | 6,332 |  |  | 516 |  | 494 |  | 10,550
Accumulated amortization |  | - |  | (1,109) |  |  | (430) |  | - |  | (1,539)
Balance at December 31, 2021 |  | 3,208 |  | 5,223 |  |  | 86 |  | 494 |  | 9,011
Additions |  | - |  | 1,087 |  |  | 39 |  | - |  | 1,126
Disposals |  | - |  | (13) |  |  | - |  | - |  | (13)
Amortization |  | - |  | (229) |  |  | (43) |  | - |  | (272)
Translation adjustment |  | (19) |  | 366 |  |  | 5 |  | 34 |  | 386
Balance at December 31, 2022 |  | 3,189 |  | 6,434 |  |  | 87 |  | 528 |  | 10,238
Cost |  | 3,189 |  | 7,808 |  |  | 564 |  | 528 |  | 12,089
Accumulated amortization |  | - |  | (1,374) |  |  | (477) |  | - |  | (1,851)
Balance at December 31, 2022 |  | 3,189 |  | 6,434 |  |  | 87 |  | 528 |  | 10,238
Schedule of estimated useful lives of intangibles |
Schedule of estimated useful lives of intangibles |  |
|  | Useful life
Railway concessions |  | 5 to 37 years
Research and development project |  | 19 years
Software |  | 5 years

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- Definition The disclosure of detailed information about intangible assets. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 118 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The disclosure of the reconciliation of changes in intangible assets and goodwill. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 118 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118&doctype=Standard -URIDate 2022-03-24 + Details
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