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27. PROVISIONS (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | R$ 641 | R$ 678 | R$ 815
Additions | 1,468 | 115 | 278
Reversals | (68) | (64) | (286)
Settled | (153) | (88) | (129)
Other provisions ending balance | 1,888 | 641 | 678
Labour Provision [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 457 | 474 | 350
Additions | 180 | 67 | 210
Reversals | (44) | (25) | (4)
Settled | (96) | (59) | (82)
Other provisions ending balance | 497 | 457 | 474
Customer Relations [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 19 | 18 | 15
Additions | 21 | 17 | 21
Reversals | (1) |  | (2)
Settled | (20) | (16) | (16)
Other provisions ending balance | 19 | 19 | 18
Other Civil Actions [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 29 | 43 | 40
Additions | 16 | 10 | 10
Reversals | (12) | (14) | (2)
Settled | (15) | (10) | (5)
Other provisions ending balance | 18 | 29 | 43
Civil Cases [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 48 | 61 | 55
Additions | 37 | 27 | 31
Reversals | (13) | (14) | (4)
Settled | (35) | (26) | (21)
Other provisions ending balance | 37 | 48 | 61
Tax [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 52 | 57 | 68
Additions | 1,236 | 5 | 9
Reversals | (8) | (10) | (2)
Settled | (20) |  | (18)
Other provisions ending balance | 1,260 | 52 | 57
Environmental [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 1 |  |
Additions |  | 1 |
Reversals | (1) |  |
Settled |  |  |
Other provisions ending balance |  | 1 |
Regulatory [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 37 | 40 | 44
Additions | 2 | 8 | 15
Reversals | (1) | (10) | (18)
Settled | (2) | (1) | (1)
Other provisions ending balance | 36 | 37 | 40
Other [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance | 46 | 46 | 59
Additions | 13 | 7 | 13
Reversals | (1) | (5) | (19)
Settled |  | (2) | (7)
Other provisions ending balance | R$ 58 | 46 | 46
Corporate [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions Beginning Balance |  |  | 239
Additions |  |  |
Reversals |  |  | (239)
Settled |  |  |
Other provisions ending balance |  |  |

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- Definition The amount of additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_a&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_d&doctype=Standard -URIDate 2019-03-27 + Details
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