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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of comprehensive income [abstract]      
Net income (loss) for the year R$ 14,106,381 R$ 23,394,887 R$ 8,635,532
Other comprehensive income (loss)      
Fair value investments in equity measured at fair value through other comprehensive income (1,311) (3,441) 2,020
Tax effect on the fair value of investments 446 1,170 (687)
Actuarial gain (loss) on post-employment plans of subsidiaries (480) (9,499) 2,289
Tax effect of the actuarial loss 163 3,260 (778)
Actuarial gain (loss) on post-employment plans of subsidiaries (128,047) (3,182) 117,353
Tax effect of the actuarial loss 43,536 1,082 (39,900)
Items with no subsequent effect on income (85,693) (10,610) 80,297
Exchange rate variation on conversion of financial information of the subsidiaries abroad 4,707 (16,035) 46,006
Realization of the above items 471 (235,737) (825)
Items with no subsequent effect on income 5,178 (251,772) 45,181
Total comprehensive income (loss) 14,025,866 23,132,505 8,761,010
Attributable to      
Controlling shareholders' 14,004,333 23,119,235 8,751,864
Non-controlling interest R$ 21,533 R$ 13,270 R$ 9,146