v3.25.1
NET SALES - Revenue Disaggregated by Products and Service Lines and Timing of Revenue Recognition (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers R$ 43,950,742 R$ 39,468,497 R$ 39,322,786
Elimination [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers (61,433) (61,292) (63,036)
Goods or services transferred at point in time [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 27,650,002 26,304,981 28,037,078
Goods or services transferred at point in time [member] | Natural gas distribution [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 16,186,691 15,737,450 17,854,412
Goods or services transferred at point in time [member] | Lubricants, base oil and other [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 9,424,869 9,285,675 8,690,659
Goods or services transferred at point in time [member] | Lease and sale of property      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 1,441,809 743,411 834,616
Goods or services transferred at point in time [member] | Electricity trading [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 238,544
Goods or services transferred at point in time [member] | Other [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 596,633 538,445 418,847
Goods or services transferred over time [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 16,362,173 13,224,808 11,348,744
Goods or services transferred over time [member] | Railroad transportation services [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 13,251,052 10,379,017 9,503,965
Goods or services transferred over time [member] | Container operations [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 685,337 558,699 337,543
Goods or services transferred over time [member] | Construction revenue [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 1,602,284 1,494,141 1,217,818
Goods or services transferred over time [member] | Other services [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers R$ 823,500 R$ 792,951 R$ 289,418