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Income and Social Contribution Taxes - Schedule of Reconciliation of Income Tax and Social Contribution Tax Effective Rate (Details) - BRL (R$)
R$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income And Social Contribution Taxes      
Profit before income tax and social contribution tax R$ 9,358 R$ 6,851 R$ 4,121
Income tax and social contribution tax - nominal expense (34%) (3,182) (2,329) (1,401)
Tax effects applicable to:      
Gain in subsidiaries by equity method 66 93 182
Tax incentives 166 89 62
Effects from subsidiaries taxed based on gross revenues 95 92 97
Non-deductible penalties (78) (95) (45)
Interest on own capital 629 950 722
Estimated losses on doubtful accounts receivable from related parties (234)
Realization of goodwill 108
Monetary update on tax overpayments 29 101
Others 36 15 15
Income tax expense (2,239) (1,084) (26)
Current tax (1,495) (943) (950)
Deferred tax (744) (141) 924
Income tax and social contribution tax R$ (2,239) R$ (1,084) R$ (26)
Effective rate 23.93% 15.82% 0.63%