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Consolidated Statements of Changes in Equity - BRL (R$) R$ in Thousands | Capital [Member] | Equity Valuation Adjustments: Deemed Cost [Member] | Equity Valuation Adjustments: Other Comprehensive Income [Member] | Profit Reserves: Legal Reserve [Member] | Profit Reserves: Profit Retention Reserve [Member] | Accumulated Profit [Member] | Shareholders' Equity [Member] | Attributable to Non-Controlling Interests [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning at Dec. 31, 2016 | R$ 7,910,000 | R$ 944,956 | R$ 53,510 | R$ 792,716 | R$ 5,016,916 |  | R$ 14,718,098 | R$ 260,044 | R$ 14,978,142
Changes in equity |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 1,033,626 | 1,033,626 | 84,629 | 1,118,255
Other comprehensive income: Gain on financial assets, net of taxes |  |  | 17,250 |  |  |  | 17,250 |  | 17,250
Other comprehensive income: actuarial gain (losses), net of taxes |  |  | (29,556) |  |  |  | (29,556) | (123) | (29,679)
Realization - gain on financial assets, net of taxes |  |  | (18,909) |  |  |  | (18,909) |  | (18,909)
Total comprehensive income |  |  | (31,215) |  |  | 1,033,626 | 1,002,411 | 84,506 | 1,086,917
Realization - deemed cost, net of taxes |  | (71,650) |  |  |  | 71,650 |  |  |
Deliberation of additional dividends proposed |  |  |  |  |  |  |  | (11,053) | (11,053)
Approval of additional dividends in accordance with the 62nd Annual General Meeting |  |  |  |  | (223,266) |  | (223,266) |  | (223,266)
Allocation proposed to GSM: Legal reserve |  |  |  | 51,682 |  | (51,682) |  |  |
Allocation proposed to GSM: Interest on own capital |  |  |  |  |  | (266,000) | (266,000) |  | (266,000)
Allocation proposed to GSM: Dividends |  |  |  |  |  | (23,401) | (23,401) | (30,836) | (54,237)
Allocation proposed to GSM: Profit retention reserve |  |  |  |  | 764,193 | (764,193) |  |  |
Balance, ending at Dec. 31, 2017 | 7,910,000 | 873,306 | 22,295 | 844,398 | 5,557,843 |  | 15,207,842 | 302,661 | 15,510,503
Changes in equity |  |  |  |  |  |  |  |  |
Adjustments arising from the adoption of IFRS15 and IFRS9 |  |  | (4,391) |  |  | (160,533) | (164,924) |  | (164,924)
Transfers to profit retention reserve |  |  |  |  | (160,533) | 160,533 |  |  |
Balance as of January 1, 2018 | 7,910,000 | 873,306 | 17,904 | 844,398 | 5,397,310 |  | 15,042,918 | 302,661 | 15,345,579
Net income (loss) |  |  |  |  |  | 1,407,063 | 1,407,063 | 36,941 | 1,444,004
Other comprehensive income: actuarial gain (losses), net of taxes |  |  | (38,514) |  |  |  | (38,514) | 154 | (38,360)
Realization - gain on financial assets, net of taxes |  |  |  |  |  |  |  |  | 0
Total comprehensive income |  |  | (38,514) |  |  | 1,407,063 | 1,368,549 | 37,095 | 1,405,644
Realization - deemed cost, net of taxes |  | (67,086) |  |  |  | 67,086 |  |  |
Allocation proposed to GSM: Legal reserve |  |  |  | 70,353 |  | (70,353) |  |  |
Allocation proposed to GSM: Interest on own capital |  |  |  |  |  | (280,000) | (280,000) |  | (280,000)
Allocation proposed to GSM: Dividends |  |  |  |  |  | (98,542) | (98,542) | (36,467) | (135,009)
Allocation proposed to GSM: Profit retention reserve |  |  |  |  | 1,025,254 | (1,025,254) |  |  |
Balance, ending at Dec. 31, 2018 | 7,910,000 | 806,220 | (20,610) | 914,751 | 6,422,564 |  | 16,032,925 | 303,289 | 16,336,214
Changes in equity |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 1,989,946 | 1,989,946 | 72,923 | 2,062,869
Other comprehensive income: actuarial gain (losses), net of taxes |  |  | (122,583) |  |  |  | (122,583) | (601) | (123,184)
Other comprehensive income: Gain (loss) with interest variation in Subsidiary |  |  | (4,874) |  |  |  | (4,874) | 4,874 |
Realization - gain on financial assets, net of taxes |  |  |  |  |  |  |  |  | 0
Total comprehensive income |  |  | (127,457) |  |  | 1,989,946 | 1,862,489 | 77,196 | 1,939,685
Realization - deemed cost, net of taxes |  | (66,226) |  |  |  | 66,226 |  |  |
Deliberation of additional dividends proposed |  |  |  |  |  |  |  | (3,335) | (3,335)
Dividends |  |  |  |  |  |  |  | (7,838) | (7,838)
Capital increase | 2,890,000 |  |  |  | (2,890,000) |  |  |  |
Allocation proposed to GSM: Legal reserve |  |  |  | 99,497 |  | (99,497) |  |  |
Allocation proposed to GSM: Interest on own capital |  |  |  |  |  | (643,000) | (643,000) |  | (643,000)
Allocation proposed to GSM: Dividends |  |  |  |  |  |  |  | (23,514) | (23,514)
Allocation proposed to GSM: Profit retention reserve |  |  |  |  | 1,313,675 | R$ (1,313,675) |  |  |
Balance, ending at Dec. 31, 2019 | R$ 10,800,000 | R$ 739,994 | R$ (148,067) | R$ 1,014,248 | R$ 4,846,239 |  | R$ 17,252,414 | R$ 345,798 | R$ 17,598,212

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