v3.25.2
Legal proceedings (Details 1) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
IfrsStatementLineItems [Line Items]    
Balance at the beginning $ 1,970  
Payments (288)  
Translation adjustment 258  
Balance at the ending 2,129  
Tax Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning 201 $ 90
Additions and reversals, net 2 5
Payments (17) (2)
Indexation and interest 1 9
Acquisition of Alianca Energia (62)  
Translation adjustment 26 (13)
Balance at the ending 151 89
Civil Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning 290 380
Additions and reversals, net (39) 18
Payments (30) (58)
Indexation and interest 10 15
Acquisition of Alianca Energia (5)  
Translation adjustment 35 (52)
Balance at the ending 261 303
Labor Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning 482 514
Additions and reversals, net 96 78
Payments (48) (53)
Indexation and interest 18 1
Translation adjustment 69 (68)
Balance at the ending 617 472
Environmental Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning 40 15
Additions and reversals, net 31 3
Payments (30)  
Indexation and interest 1 1
Acquisition of Alianca Energia (27)  
Translation adjustment 6 (3)
Balance at the ending 21 16
Legal proceedings provision [member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning 1,013 999
Additions and reversals, net 90 104
Payments (125) (113)
Indexation and interest 30 26
Acquisition of Alianca Energia (94)  
Translation adjustment 136 (136)
Balance at the ending $ 1,050 $ 880