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Intangible Assets - Balance and changes in intangible assets (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | R$ 1,782,655 |  | R$ 1,762,593 |  | R$ 2,369,355 |
Intangible assets, additions |  | 318,335 |  | 310,412 |  | 441,748 |
Intangible assets, amortization |  | (212,222) |  | (182,681) |  | (120,492) |
Intangible assets, transfer |  | 169 | [1] | (65) | [2] | (6,442) | [3]
Intangible assets, write-offs and disposals |  | (177,334) |  | (128,545) |  | (920) |
Intangible assets, effect of foreign currency exchange rate variation |  | 4,923 |  | 20,941 |  | 2,788 |
Intangible assets, reclassification to assets held for sale | [4] | (245,270) |  |  |  |  |
Intangible assets, oxiteno andian |  | (451) |  | (163) |  | (290) |
Intangible assets, ending balance |  | 1,471,256 |  | 1,782,655 |  | 1,762,593 |
IFRS 16 [Member] | Intangibles assets arising from business combination |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, IFRS 16 |  |  |  |  |  | (39,928) |
Oxiteno Andina C A [Member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  | (20) |
Distribution rights asset [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  |  |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  |  |
Cost [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | 3,388,802 |  | 3,191,963 |  | 3,105,856 |
Intangible assets, IFRS 16 |  |  |  |  |  | (56,114) |
Intangible assets, additions |  | 462,826 |  | 310,412 |  | 151,997 |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  | 372 | [1] | (65) | [2] | (10,098) | [3]
Intangible assets, write-offs and disposals |  | (196,663) |  | (138,854) |  | (3,187) |
Intangible assets, effect of foreign currency exchange rate variation |  | 6,491 |  | 25,346 |  | 3,790 |
Intangible assets, reclassification to assets held for sale | [4] | (1,397,748) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  | (281) |
Intangible assets, ending balance |  | 2,264,080 |  | 3,388,802 |  | 3,191,963 |
Cost [member] | Goodwill [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | 1,525,088 |  | 1,525,088 |  | 1,525,088 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | (706,992) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | R$ 818,096 |  | R$ 1,525,088 |  | R$ 1,525,088 |
Cost [member] | Software [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  | 4 years |  | 4 years |  | 3 years |
Intangible assets, beginning |  | R$ 1,395,046 |  | R$ 1,210,529 |  | R$ 1,062,486 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  | 284,311 |  | 184,027 |  | 145,004 |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  | 372 | [1] | 993 | [2] | 2,553 | [3]
Intangible assets, write-offs and disposals |  | (19,826) |  | (6,633) |  | (784) |
Intangible assets, effect of foreign currency exchange rate variation |  | 1,808 |  | 6,130 |  | 1,551 |
Intangible assets, reclassification to assets held for sale | [4] | (514,731) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  | (281) |
Intangible assets, ending balance |  | 1,146,980 |  | 1,395,046 |  | R$ 1,210,529 |
Cost [member] | Technology [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  |  |  |  |  | 5 years |
Intangible assets, beginning |  | 32,617 |  | 32,617 |  | R$ 32,617 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | (32,617) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  | 32,617 |  | R$ 32,617 |
Cost [member] | Commercial property rights [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  |  |  |  |  | 10 years |
Intangible assets, beginning |  |  |  | 7,934 |  | R$ 64,032 |
Intangible assets, IFRS 16 |  |  |  |  |  | (56,114) |
Intangible assets, additions |  |  |  |  |  | 3,820 |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  |  |  | [2] | (1,401) | [3]
Intangible assets, write-offs and disposals |  |  |  | (7,934) |  | (2,403) |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  | R$ 7,934 |
Cost [member] | Distribution rights asset [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  | 12 years |  | 10 years |  | 6 years |
Intangible assets, beginning |  | R$ 133,599 |  | R$ 133,599 |  | R$ 142,989 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  | 1,505 |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] | (10,895) | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | (19,006) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | 114,593 |  | 133,599 |  | 133,599 |
Cost [member] | Brands [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | 136,962 |  | 122,504 |  | 120,571 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  | 4,759 |  | 14,458 |  | 1,933 |
Intangible assets, reclassification to assets held for sale | [4] | (72,523) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | R$ 69,198 |  | R$ 136,962 |  | R$ 122,504 |
Cost [member] | Trademark rights [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  | 39 years |  | 39 years |  | 35 years |
Intangible assets, beginning |  | R$ 114,792 |  | R$ 114,792 |  | R$ 114,792 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | R$ 114,792 |  | R$ 114,792 |  | R$ 114,792 |
Cost [member] | Others [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Weighted average useful life (years) |  | 10 years |  | 10 years |  | 10 years |
Intangible assets, beginning |  | R$ 50,698 |  | R$ 44,900 |  | R$ 43,281 |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  | 1,678 |  | 1,040 |  | 1,668 |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] | (355) | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  | (76) |  | 4,758 |  | 306 |
Intangible assets, reclassification to assets held for sale | [4] | (51,879) |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | 421 |  | 50,698 |  | 44,900 |
Cost [member] | Decarbonization credits [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  |  |  |  |  |  |
Intangible assets, additions |  | 176,837 |  | 125,345 |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] | (1,058) | [2] |  |
Intangible assets, write-offs and disposals |  | (176,837) |  | (124,287) |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  |  |
Accumulated amortization [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (1,012,867) |  | (835,625) |  | (736,501) |
Intangible assets, IFRS 16 |  |  |  |  |  | 16,186 |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  | (212,222) |  | (182,681) |  | (120,492) |
Intangible assets, transfer |  | (203) | [1] |  | [2] | 3,656 | [3]
Intangible assets, write-offs and disposals |  | 19,329 |  | 9,844 |  | 2,267 |
Intangible assets, effect of foreign currency exchange rate variation |  | (1,568) |  | (4,405) |  | (1,002) |
Intangible assets, reclassification to assets held for sale | [4] | 414,707 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  | 261 |
Intangible assets, ending balance |  | (792,824) |  | (1,012,867) |  | (835,625) |
Accumulated amortization [member] | Software [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (825,024) |  | (648,861) |  | (537,438) |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  | (206,025) |  | (175,144) |  | (110,088) |
Intangible assets, transfer |  | (203) | [1] |  | [2] | 13 | [3]
Intangible assets, write-offs and disposals |  | 19,329 |  | 3,375 |  | 611 |
Intangible assets, effect of foreign currency exchange rate variation |  | (1,566) |  | (4,394) |  | (998) |
Intangible assets, reclassification to assets held for sale | [4] | 334,087 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  | 261 |
Intangible assets, ending balance |  | (679,402) |  | (825,024) |  | (648,861) |
Accumulated amortization [member] | Technology [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (32,616) |  | (32,616) |  | (32,613) |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  | (3) |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | 32,616 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  | (32,616) |  | (32,616) |
Accumulated amortization [member] | Commercial property rights [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  |  |  | (6,384) |  | (23,931) |
Intangible assets, IFRS 16 |  |  |  |  |  | 16,186 |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  |  |  | (85) |  | (848) |
Intangible assets, transfer |  |  |  |  | [2] | (669) | [3]
Intangible assets, write-offs and disposals |  |  |  | 6,469 |  | 2,878 |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  | (6,384) |
Accumulated amortization [member] | Distribution rights asset [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (113,326) |  | (108,932) |  | (106,597) |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  | (3,093) |  | (4,394) |  | (6,511) |
Intangible assets, transfer |  |  | [1] |  | [2] | 4,176 | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | 15,392 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | (101,027) |  | (113,326) |  | (108,932) |
Accumulated amortization [member] | Trademark rights [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (9,056) |  | (6,119) |  | (3,182) |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  | (2,937) |  | (2,937) |  | (2,937) |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | (11,993) |  | (9,056) |  | (6,119) |
Accumulated amortization [member] | Others [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (32,845) |  | (32,713) |  | (32,740) |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  |  |
Intangible assets, amortization |  | (167) |  | (121) |  | (105) |
Intangible assets, transfer |  |  | [1] |  | [2] | 136 | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  | (2) |  | (11) |  | (4) |
Intangible assets, reclassification to assets held for sale | [4] | 32,612 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  | (402) |  | (32,845) |  | (32,713) |
Provision for losses and impairment [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (593,280) |  | (593,745) |  |  |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  | (144,491) |  |  |  | (593,745) |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  | 465 |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | 737,771 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  | (593,280) |  | (593,745) |
Provision for losses and impairment [member] | Goodwill [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  | (593,280) |  | (593,280) |  |  |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  | (68,273) |  |  |  | (593,280) |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  | [1] |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | 661,553 |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  | (593,280) |  | (593,280) |
Provision for losses and impairment [member] | Commercial property rights [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, beginning |  |  |  | (465) |  |  |
Intangible assets, IFRS 16 |  |  |  |  |  |  |
Intangible assets, additions |  |  |  |  |  | (465) |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer |  |  |  |  | [2] |  | [3]
Intangible assets, write-offs and disposals |  |  |  | 465 |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, oxiteno andian | [5] |  |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  | R$ (465) |
Provision for losses and impairment [member] | Distribution rights asset [member] |  |  |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |  |  |
Intangible assets, additions |  | (76,218) |  |  |  |  |
Intangible assets, amortization |  |  |  |  |  |  |
Intangible assets, transfer | [1] |  |  |  |  |  |
Intangible assets, write-offs and disposals |  |  |  |  |  |  |
Intangible assets, effect of foreign currency exchange rate variation |  |  |  |  |  |  |
Intangible assets, reclassification to assets held for sale | [4] | 76,218 |  |  |  |  |
Intangible assets, ending balance |  |  |  |  |  |  |
[1] | Refers to amounts transferred from PP&E.
[2] | Refers to amounts transferred to property, plant and equipment and prepaid expenses.
[3] | Refers to amounts transferred to PP&E and right-of-use assets.
[4] | For further information, see Note 3.c.1.
[5] | Refers to the asset write-offs of Oxiteno Andina.

X
- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2021-03-24 + Details
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