v3.22.2.2
Income tax and social contribution (Details) - Schedule of reconciliation of income tax and social contribution expense - BRL (R$)
R$ in Millions
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Schedule Of Reconciliation Of Income Tax And Social Contribution Expense Abstract    
Earnings before income tax and social contribution R$ 912 R$ 1,436
Expense of income tax and social contribution (310) (488)
Adjustments to reflect the effective rate    
Tax fines (1) (1)
Share of profits 12 14
Interest on equity   22
ICMS subsidy - tax incentives [1] 176
Interest selic credits   81
Current period credit 25  
Tax benefits   19
Effective income tax (98) (353)
Income tax and social contribution for the period    
Current (74) (385)
Deferred (24) 32
Income tax and social contribution expenses R$ (98) R$ (353)
Effective rate 10.70% 24.60%
[1] The Company has tax benefits that are characterized as investment subsidies as provided for in Complementary Law n° 160/17 and Law n°. 12,973/14. In the nine-month period ended September 30, 2022, the Company excluded the IRPJ and CSLL calculation bases from the amount constituted in the tax incentive reserve (see note19.4).