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Net revenue from sale and services - Net revenue from sale and services (Detail) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Net revenue from sale and services details [abstract]      
Gross revenue from sale R$ 86,754,003 R$ 94,296,759 R$ 94,693,178
Gross revenue from services 929,304 869,084 750,791
Sales taxes [1] (4,291,081) (4,031,295) (3,027,597)
Discounts and sales returns (1,871,825) (1,494,814) (1,342,799)
Amortization of contractual assets with customers (see Note 11) (289,436) (355,250) (371,825)
Deferred revenue (see Note 23) 10,137 13,491 (3,765)
Net revenue from sales and services R$ 81,241,102 R$ 89,297,975 R$ 90,697,983
[1] Presented as required by the Brazilian law.