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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)      
Net income (loss) for the year R$ 8,635,532 R$ (10,714,935) R$ (2,814,742)
Other comprehensive income (loss)      
Exchange rate variation and fair value investments in equity measured at fair value through other comprehensive income 2,020 6,290 3,576
Tax effect of the above items (687) (2,139) (1,216)
Actuarial gain on post-employment plans of the subsidiaries 2,289 3,522 2,749
Tax effect of the above item (778) (1,015) (935)
Actuarial gain (loss) on post-employment plans of the subsidiaries 117,353 (37,188) (147,640)
Tax effect of the above item (39,900) 12,644 50,198
Items with no subsequent effect on statement of income 80,297 (17,886) (93,268)
Exchange rate variation on conversion of financial statements of the subsidiaries abroad [1] 45,181 (2,857) 45,819
Items with subsequent effect on income 45,181 (2,857) 45,819
Total comprehensive income (loss) 8,761,010 (10,735,678) (2,862,191)
Attributable to      
Controlling shareholders' 8,751,864 (10,745,571) (2,864,967)
Non-controlling interest R$ 9,146 R$ 9,893 R$ 2,776
[1] Includes the realization of the effect arising from the remeasurement of Spinnova’s investment (Note 1.2.5).