v3.26.1
Taxes (Details 3) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
UTPs not recorded on statement of financial position    
Transfer pricing over the exportation of ores to a foreign subsidiary $ 6,627 $ 5,501
Expenses of interest on capital 1,311 1,402
Proceeding related to income tax paid abroad 517 427
Goodwill amortization 1,085 869
Payments to Renova Foundation (iii) 1,010 678
Other 470 419
Total not recorded on statement of financial position 11,020 9,296
UTPs recorded on statement of financial position    
Deduction of CSLL in Brazil (iv) 154
Total recorded on statement of financial position 154
Assessed [Member]    
UTPs not recorded on statement of financial position    
Transfer pricing over the exportation of ores to a foreign subsidiary 4,819 3,893
Expenses of interest on capital 1,311 1,402
Proceeding related to income tax paid abroad 517 427
Goodwill amortization 1,008 807
Payments to Renova Foundation (iii) 733 327
Other 470 419
Total not recorded on statement of financial position 8,858 7,275
UTPs recorded on statement of financial position    
Deduction of CSLL in Brazil (iv) 154
Total recorded on statement of financial position 154
Potential [Member]    
UTPs not recorded on statement of financial position    
Transfer pricing over the exportation of ores to a foreign subsidiary 1,808 1,608
Expenses of interest on capital
Proceeding related to income tax paid abroad
Goodwill amortization 77 62
Payments to Renova Foundation (iii) 277 351
Other
Total not recorded on statement of financial position 2,162 2,021
UTPs recorded on statement of financial position    
Deduction of CSLL in Brazil (iv)
Total recorded on statement of financial position