v3.25.2
Financial assets and liabilities (Details 2) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities $ 17,146 $ 14,792
Gross carrying amount [member] | USD [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 6,722 5,844
Gross carrying amount [member] | EUR [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 56 63
Gross carrying amount [member] | TJLP, TR,IPCA, IGP-M And CDI [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 156 185
Gross carrying amount [member] | Basket Of Currencies And USD LIBOR [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 152 152
Gross carrying amount [member] | Fixed interest rate [member] | Currencies Other Than U S Dollar And Brazilian Real [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 9 9
Gross carrying amount [member] | Bond [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 7,683 7,267
Gross carrying amount [member] | Debentures [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 2,368 1,272
At fair value [member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 17,468 14,854
At fair value [member] | USD [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 7,014 5,922
At fair value [member] | EUR [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 58 64
At fair value [member] | TJLP, TR,IPCA, IGP-M And CDI [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 156 185
At fair value [member] | Basket Of Currencies And USD LIBOR [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 160 155
At fair value [member] | Fixed interest rate [member] | Currencies Other Than U S Dollar And Brazilian Real [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 8 8
At fair value [member] | Bond [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities 7,725 7,245
At fair value [member] | Debentures [Member]    
IfrsStatementLineItems [Line Items]    
Fair value of assets and liabilities $ 2,347 $ 1,275