v3.25.2
Brumadinho dam failure (Details 1)
$ in Millions
 6 Months Ended
Jun. 30, 2025
USD ($)
IfrsStatementLineItems [Line Items]  
Balance at the beginning $ 1,970
Revision to estimates 49
Monetary and present value adjustments 140
Disbursements (288)
Translation adjustment 258
Balance at the ending 2,129
Judicial Settlement For Brumadinho [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 1,164
Revision to estimates (30)
Monetary and present value adjustments 90
Disbursements (185)
Translation adjustment 150
Balance at the ending 1,189
Judicial Settlement For Brumadinho [Member] | Payment Obligations [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 304
Revision to estimates (4)
Monetary and present value adjustments 28
Disbursements (95)
Translation adjustment 38
Balance at the ending 271
Judicial Settlement For Brumadinho [Member] | Provision For Socio Economic Reparation And Others [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 327
Revision to estimates (17)
Monetary and present value adjustments 24
Disbursements (29)
Translation adjustment 42
Balance at the ending 347
Judicial Settlement For Brumadinho [Member] | Provision For Social And Environmental Reparation [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 533
Revision to estimates (9)
Monetary and present value adjustments 38
Disbursements (61)
Translation adjustment 70
Balance at the ending 571
Other Obligations [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 806
Revision to estimates 79
Monetary and present value adjustments 50
Disbursements (103)
Translation adjustment 108
Balance at the ending 940
Other Obligations [Member] | Tailings Containment And Geotechnical Safety [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 504
Revision to estimates 14
Monetary and present value adjustments 34
Disbursements (57)
Translation adjustment 68
Balance at the ending 563
Other Obligations [Member] | Individual Indemnification [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 49
Revision to estimates 8
Monetary and present value adjustments 5
Disbursements (18)
Translation adjustment 5
Balance at the ending 49
Other Obligations [Member] | Other Commitments [Member]  
IfrsStatementLineItems [Line Items]  
Balance at the beginning 253
Revision to estimates 57
Monetary and present value adjustments 11
Disbursements (28)
Translation adjustment 35
Balance at the ending $ 328