v3.25.1
Financial instruments - Outstanding derivatives by contract type, including embedded derivatives (Details)
R$ in Thousands, $ in Thousands
Mar. 31, 2025
BRL (R$)
Mar. 31, 2025
USD ($)
Dec. 31, 2024
BRL (R$)
Dec. 31, 2024
USD ($)
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ R$ (2,999,118)   R$ (6,567,720)  
Derivative financial instruments 888,004   1,006,427  
Derivative financial instruments 3,244,326   2,880,673  
Current derivative financial liabilities (1,561,094)   (2,760,273)  
Non-current derivative financial liabilities (5,570,354)   (7,694,547)  
Operational Hedge        
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ (1,555,503)   (4,660,846)  
Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ (1,449,747)   (1,843,085)  
Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ 6,132   (63,789)  
NDF (R$ x US$) | Operational Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value 185,000   581,000  
Fair value in R$ (36,977)   (331,876)  
Swap US$ e US-CPI (1) | Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value 138,182   138,439  
Fair value in R$ (23,226)   (80,759)  
Swap VLSFO/Brent | Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value 23,027   39,706  
Fair value in R$ 3,846   10,873  
Interest rate swap contract [member] | Zero Cost Collar | Operational Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   $ 7,264,700   $ 6,852,200
Fair value in R$ (1,518,526)   (4,328,970)  
Interest rate swap contract [member] | Zero Cost Collar | Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   209,530   163,941
Fair value in R$ 25,512   6,097  
Interest rate swap contract [member] | NDF (R$ x US$) | Operational Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   185,000   581,000
Fair value in R$ (36,977)   (331,876)  
Interest rate swap contract [member] | Swap SOFR x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   1,687,593   1,973,705
Fair value in R$ 244,452   394,129  
Interest rate swap contract [member] | Swap IPCA x CDI (notional in Brazilian Reais) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   8,053,063   8,128,395
Fair value in R$ (764,449)   (825,899)  
Interest rate swap contract [member] | Swap CNH x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   165,815    
Fair value in R$ (7,456)      
Interest rate swap contract [member] | Swap CDI x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   903,827   909,612
Fair value in R$ (570,496)   (776,261)  
Interest rate swap contract [member] | Swap CDI x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   610,171   610,171
Fair value in R$ (331,078)     (590,764)
Interest rate swap contract [member] | Swap SOFR x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   150,961   150,961
Fair value in R$ (20,720)     (37,850)
Interest rate swap contract [member] | Swap US$ e US-CPI (1) | Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   138,182   138,439
Fair value in R$ (23,226)   (80,759)  
Interest rate swap contract [member] | Swap VLSFO/Brent | Commodity Hedge        
Disclosure of detailed information about financial instruments [line items]        
Notional value | $   $ 23,027   $ 39,706
Fair value in R$ 3,846   10,873  
Derivative Assets | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ 3,497,526   3,594,291  
Derivative Assets | Swap SOFR x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 1,687,593   1,973,705  
Fair value in R$ 250,548   424,824  
Derivative Assets | Swap IPCA x CDI (notional in Brazilian Reais) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 8,456,042   8,382,699  
Fair value in R$ 900,125   927,586  
Derivative Assets | Swap CNH x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 1,200,000   1,200,000  
Fair value in R$ 25,935      
Derivative Assets | Swap CDI x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 4,650,715   4,748,394  
Fair value in R$ 1,441,090   1,482,759  
Derivative Assets | Swap CDI x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 3,117,625   3,117,625  
Fair value in R$ 874,462   754,173  
Derivative Assets | Swap SOFR x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 150,961   150,961  
Fair value in R$ 5,366   4,949  
Derivative Liabilities | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Fair value in R$ (4,947,273)   (5,437,376)  
Derivative Liabilities | Swap SOFR x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 1,687,593   1,973,705  
Fair value in R$ (6,096)   (30,695)  
Derivative Liabilities | Swap IPCA x CDI (notional in Brazilian Reais) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 8,053,063   8,128,395  
Fair value in R$ (1,664,574)   (1,753,485)  
Derivative Liabilities | Swap CNH x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 165,815      
Fair value in R$ (33,391)   (6,440)  
Derivative Liabilities | Swap CDI x Fixed (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 903,827   909,612  
Fair value in R$ (2,011,586)   (2,259,020)  
Derivative Liabilities | Swap CDI x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 610,171   610,171  
Fair value in R$ (1,205,540)   (1,344,937)  
Derivative Liabilities | Swap SOFR x SOFR (US$) | Debt hedges        
Disclosure of detailed information about financial instruments [line items]        
Notional value 150,961   150,961  
Fair value in R$ R$ (26,086)   R$ (42,799)