v3.25.2
Information by business segment and geographic area (Details 1) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
IfrsStatementLineItems [Line Items]        
Net operating revenue $ 8,804 $ 9,920 $ 16,923 $ 18,379
Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 5,762 6,729 10,916 12,021
Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 1,004 1,394 2,059 2,979
Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 197 175 363 323
Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 6,963 8,298 13,338 15,323
Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 1,024 873 1,985 1,703
Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 779 702 1,520 1,279
Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 38 47 80 74
Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 1,841 1,622 3,585 3,056
Country Of China [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 4,329 5,204 8,215 9,097
Country Of China [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 4,186 4,883 7,811 8,545
Country Of China [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of China [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of China [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 4,186 4,883 7,811 8,545
Country Of China [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 106 103 198 174
Country Of China [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 26 189 188 349
Country Of China [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 11 29 18 29
Country Of China [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 143 321 404 552
Country Of Japan [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 648 927 1,165 1,609
Country Of Japan [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 555 710 999 1,230
Country Of Japan [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 40 87 59 152
Country Of Japan [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 1 1 1 1
Country Of Japan [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 596 798 1,059 1,383
Country Of Japan [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 52 129 106 226
Country Of Japan [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of Japan [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of Japan [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 52 129 106 226
Asia Except Japan And China [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 905 727 1,615 1,321
Asia Except Japan And China [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 533 509 1,068 974
Asia Except Japan And China [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 84 112 122 151
Asia Except Japan And China [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 2 2 8 5
Asia Except Japan And China [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 619 623 1,198 1,130
Asia Except Japan And China [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 97 63 195 154
Asia Except Japan And China [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 186 41 215 37
Asia Except Japan And China [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 3 7
Asia Except Japan And China [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 286 104 417 191
Country Of Brazil [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 774 868 1,588 1,874
Country Of Brazil [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 233 273 482 602
Country Of Brazil [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 326 410 703 931
Country Of Brazil [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 193 172 353 317
Country Of Brazil [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 752 855 1,538 1,850
Country Of Brazil [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 16 12 39 20
Country Of Brazil [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of Brazil [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 6 1 11 4
Country Of Brazil [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 22 13 50 24
Country Of United States Of America [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 273 254 570 497
Country Of United States Of America [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of United States Of America [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 67 51 121 103
Country Of United States Of America [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 1 1
Country Of United States Of America [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 68 51 122 103
Country Of United States Of America [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 198 196 421 374
Country Of United States Of America [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of United States Of America [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 7 7 27 20
Country Of United States Of America [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 205 203 448 394
Americas Except United States And Brazil [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 199 287 368 593
Americas Except United States And Brazil [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Americas Except United States And Brazil [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 45 107 94 228
Americas Except United States And Brazil [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Americas Except United States And Brazil [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 45 107 94 228
Americas Except United States And Brazil [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 154 141 274 264
Americas Except United States And Brazil [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 39 101
Americas Except United States And Brazil [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Americas Except United States And Brazil [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 154 180 274 365
Country Of Germany [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 453 286 916 612
Country Of Germany [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 77 89 159 157
Country Of Germany [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 30 49 71 84
Country Of Germany [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Country Of Germany [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 107 138 230 241
Country Of Germany [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 126 81 268 177
Country Of Germany [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 218 67 412 194
Country Of Germany [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 2 6
Country Of Germany [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 346 148 686 371
Europe Except Germany [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 795 793 1,606 1,476
Europe Except Germany [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 178 265 397 506
Europe Except Germany [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 13 11 46 52
Europe Except Germany [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Europe Except Germany [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 191 276 443 558
Europe Except Germany [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 246 141 447 299
Europe Except Germany [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 349 366 705 598
Europe Except Germany [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 9 10 11 21
Europe Except Germany [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 604 517 1,163 918
Middle East Africa And Oceania [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 428 574 880 1,300
Middle East Africa And Oceania [Member] | Iron Ore [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 7
Middle East Africa And Oceania [Member] | Iron Ore Pellets [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 399 567 843 1,278
Middle East Africa And Oceania [Member] | Other Ferrous Products And Logistics Services [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Middle East Africa And Oceania [Member] | Iron Solutions [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 399 567 843 1,285
Middle East Africa And Oceania [Member] | Nickel And Other Products [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue 29 7 37 15
Middle East Africa And Oceania [Member] | Copper [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Middle East Africa And Oceania [Member] | Other energy transition metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue
Middle East Africa And Oceania [Member] | Energy Transition Metals [Member]        
IfrsStatementLineItems [Line Items]        
Net operating revenue $ 29 $ 7 $ 37 $ 15