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Risks and Financial Instruments - Summary the position of hedging instruments (Detail)
€ in Thousands, ¥ in Thousands, R$ in Thousands, $ in Thousands
12 Months Ended
Mar. 06, 2024
Dec. 31, 2023
BRL (R$)
Dec. 31, 2022
BRL (R$)
Dec. 31, 2021
BRL (R$)
Dec. 31, 2023
EUR (€)
Dec. 31, 2023
JPY (¥)
Dec. 31, 2023
BRL (R$)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
EUR (€)
Dec. 31, 2022
BRL (R$)
Dec. 31, 2022
USD ($)
Disclosure of detailed information about financial instruments [line items]                      
Final maturity March 6,2025                    
Derivatives designated as hedge accounting [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Fair value, Assets             R$ 637,128     R$ 289,893  
Fair value, Liabilities             (373,895)     (152,249)  
Gains (losses), Results   R$ (284,504) R$ (1,180,344) R$ (135,479)              
Gains (losses) Equity       R$ 0     (10,857)     0  
Derivatives designated as hedge accounting [member] | Foreign exchange swap [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   USD + 0.00% USD + 4.95% USD + 4.65              
Contracted rates-liabilities   53.60% of DI 106.67% of DI 104.87% DI              
Final maturity   Oct-26 Sept-25 Sept-23              
Notional amount [1]       R$ 125,000       $ 234,000     $ 221,339
Fair value, Assets             0     106,550  
Fair value, Liabilities             (106,657)     (9,243)  
Gains (losses), Results   R$ (145,949) R$ (121,296) 11,712              
Gains (losses) Equity       R$ 0     (10,857)     0  
Derivatives designated as hedge accounting [member] | Foreign exchange swap one [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   USD + 5.47% EUR + 3.42% USD + LIBOR-3M              
Contracted rates-liabilities   110.02% of DI 111.60% of DI 105.00% DI              
Final maturity   Sept-25 Mar-23 Jun-22              
Notional amount [1]       R$ 50,000       206,067 € 9,709    
Fair value, Assets             0     1,954  
Fair value, Liabilities             (119,094)     0  
Gains (losses), Results   R$ (223,555) R$ 2,573 10,779              
Gains (losses) Equity       R$ 0     0     0  
Derivatives designated as hedge accounting [member] | Foreign exchange swap two [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   EUR + 5.12% USD + LIBOR-3M + 1.14%                
Contracted rates-liabilities   111.93% of DI 105.00% of DI                
Final maturity   Jan-24                  
Notional amount [1]         € 22,480         0  
Fair value, Assets             0     0  
Fair value, Liabilities             (22,529)     0  
Gains (losses), Results   R$ (23,304) R$ (21,566)                
Gains (losses) Equity             0     0  
Derivatives designated as hedge accounting [member] | Foreign exchange swap three [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   JPY + 1.50%                  
Contracted rates-liabilities   109.40% of DI                  
Final maturity   Mar-25                  
Notional amount | ¥ [1]           ¥ 12,564,393          
Fair value, Assets             0        
Fair value, Liabilities             (120,746)        
Gains (losses), Results   R$ (130,726)                  
Gains (losses) Equity             0        
Derivatives designated as hedge accounting [member] | Interest rate swap contract [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   IPCA + 5.03% IPCA + 5.03% 4.59% + IPCA              
Contracted rates-liabilities   102.87% of DI 102.87% of DI 102.00% DI              
Final maturity   Jun-32 Jun-32 Sept-28              
Notional amount [1]       R$ 2,226,054     3,226,054     3,226,054  
Fair value, Assets             598,311     173,741  
Fair value, Liabilities             0     (59,789)  
Gains (losses), Results   R$ 260,301 R$ (143,762) (17,922)              
Gains (losses) Equity       R$ 0     0     0  
Derivatives designated as hedge accounting [member] | Interest rate swap contract one [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   10.48% 6.47% 6.47%              
Contracted rates-liabilities   103.64% of DI 99.94% of DI 99.94% DI              
Final maturity   Jun-27 Nov-24 Nov-24              
Notional amount [1]       R$ 90,000     615,791     90,000  
Fair value, Assets             12,515     0  
Fair value, Liabilities             (3,182)     (9,513)  
Gains (losses), Results   R$ 10,694 R$ (5,069) (10,088)              
Gains (losses) Equity       R$ 0     0     0  
Derivatives designated as hedge accounting [member] | Commodity Forward [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   BRL BRL                
Contracted rates-liabilities   Heating Oil/ RBOB Heating Oil/ RBOB                
Final maturity   Jan-24 Jul-23                
Notional amount | $ [1]               129,894     181,880
Fair value, Assets             22,343     2,936  
Fair value, Liabilities             (854)     (70,630)  
Gains (losses), Results   R$ (50,977) R$ (944,896)                
Gains (losses) Equity             0     0  
Derivatives designated as hedge accounting [member] | NDF [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   BRL BRL BRL              
Contracted rates-liabilities   USD USD USD              
Final maturity   Feb-24 Jan-23 Jan-22              
Notional amount [1]       R$ 68,361       211,179     127,233
Fair value, Assets             3,959     4,712  
Fair value, Liabilities             (833)     (3,074)  
Gains (losses), Results   R$ 19,012 R$ 53,672 813              
Gains (losses) Equity       R$ 0     0     0  
Derivatives designated as hedge accounting [member] | Term [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets       BRL              
Contracted rates-liabilities       Heating Oil/ RBOB              
Final maturity       Jan-22              
Notional amount [1]       R$ 120,260              
Gains (losses), Results       (130,773)              
Gains (losses) Equity       0              
Derivatives not designated as hedge accounting                      
Disclosure of detailed information about financial instruments [line items]                      
Fair value, Assets             189,917     266,617  
Fair value, Liabilities             (252,839)     (372,062)  
Gains (losses), Results   R$ (279,246) R$ (792,278) (54,321)              
Gains (losses) Equity       R$ 0     0     0  
Derivatives not designated as hedge accounting | Foreign exchange swap [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   USD + 0.00% 0.00% 2.67%              
Contracted rates-liabilities   52.99% of CDI 53.0% of CDI 100.00%              
Final maturity   Jun-29 Jun-29 May-21              
Notional amount [1]       R$ 0       375,000     375,000
Fair value, Assets             186,925     230,145  
Fair value, Liabilities             (45,877)     (9,174)  
Gains (losses), Results   R$ (188,395) R$ (85,474) 17              
Gains (losses) Equity       R$ 0     0     0  
Derivatives not designated as hedge accounting | Interest rate swap contract [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   USD + 5.25% USD + 5.25% 5.25%              
Contracted rates-liabilities   1.36% of CDI CDI - 1.36% DI - 1.36%              
Final maturity   Jun-29 Jun-29 Jun-29              
Notional amount [1]       R$ 300,000       300,000     300,000
Fair value, Assets             0     0  
Fair value, Liabilities             (196,243)     (308,821)  
Gains (losses), Results   R$ 9,257 R$ (266,445) (109,081)              
Gains (losses) Equity       R$ 0     0     0  
Derivatives not designated as hedge accounting | Commodity Forward [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   BRL                  
Contracted rates-liabilities   Heating Oil/ Marine Fuel/Others                  
Final maturity   Mar-24                  
Notional amount | $ [1]               18,127      
Fair value, Assets             1,524        
Fair value, Liabilities             (2,310)        
Gains (losses), Results   R$ 5,489                  
Gains (losses) Equity             0        
Derivatives not designated as hedge accounting | NDF [member]                      
Disclosure of detailed information about financial instruments [line items]                      
Contracted rates-assets   USD USD USD              
Contracted rates-liabilities   BRL BRL BRL              
Final maturity   Mar-24 Jul-23 Jun-22              
Notional amount [1]       R$ 625,762       $ 457,099     $ 1,116,702
Fair value, Assets             1,468     36,472  
Fair value, Liabilities             (8,409)     (54,067)  
Gains (losses), Results   R$ (105,597) R$ (440,359) 54,743              
Gains (losses) Equity       R$ 0     R$ 0     R$ 0  
[1] Currency as indicated.