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GOODWILL (Tables) | 12 Months Ended
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Dec. 31, 2019
GOODWILL |
Summary of changes in goodwill |
|  |  |  | Accumulated |  | Goodwill after
|  | Goodwill |  | impairment losses |  | Impairment losses
Balance as of January 1, 2017 |  | 15,059,838 |  | (5,589,822) |  | 9,470,016
(+/-) Foreign exchange effect |  | 242,510 |  | (169,979) |  | 72,531
(-) Impairment |  | — |  | (849,438) |  | (849,438)
(-) Transfer to assets held for sale |  | (801,967) |  | — |  | (801,967)
Balance as of December 31, 2017 |  | 14,500,381 |  | (6,609,239) |  | 7,891,142
(+/-) Foreign exchange effect |  | 2,283,577 |  | (1,062,329) |  | 1,221,248
Balance as of December 31, 2018 |  | 16,783,958 |  | (7,671,568) |  | 9,112,390
(+/-) Foreign exchange effect |  | 661,247 |  | (304,326) |  | 356,921
Balance as of December 31, 2019 |  | 17,445,205 |  | (7,975,894) |  | 9,469,311
Schedule of goodwill by segment |
|  | 2019 |  | 2018 |  | 2017
Brazil |  | 373,135 |  | 373,135 |  | 373,135
Special Steel |  | 2,969,752 |  | 2,854,888 |  | 2,487,364
North America |  | 6,126,424 |  | 5,884,367 |  | 5,030,643
|  | 9,469,311 |  | 9,112,390 |  | 7,891,142

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- Definition The disclosure of the reconciliation of changes in goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2019-01-01 -Paragraph B67 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B -URIDate 2019-03-27 + Details
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