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3 CASH AND CASH EQUIVALENTS (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Current cash and cash equivalents |  |  |  |
Cash and banks | R$ 496,769 | R$ 1,124,714 |  |
Total short-term investments | 592,186 | 1,123,290 |  |
Cash and cash equivalents | 1,088,955 | 2,248,004 | R$ 3,411,572 | R$ 4,871,162
BRAZIL |  |  |  |
Current cash and cash equivalents |  |  |  |
Total short-term investments | 531,924 | 619,727 |  |
Government Securities [Member] | BRAZIL |  |  |  |
Current cash and cash equivalents |  |  |  |
Total short-term investments | 69,093 | 10,247 |  |
Private Securities [Member] | BRAZIL |  |  |  |
Current cash and cash equivalents |  |  |  |
Total short-term investments | 462,831 | 609,480 |  |
Private Securities [Member] | Abroad [Member] |  |  |  |
Current cash and cash equivalents |  |  |  |
Total short-term investments | R$ 60,262 | R$ 503,563 |  |

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- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2019-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_45&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_i&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2019-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_45&doctype=Standard -URIDate 2019-03-27 + Details
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