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Information by business segment and by geographic area - Net operating revenue (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Information by business segment and by geographic area |  |  |
Net operating revenue | $ 40,018 | $ 37,570 | $ 36,575
Americas, except United States and Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 620 | 1,358 | 1,478
United States of America |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,041 | 1,335 | 1,353
Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,666 | 1,683 | 1,653
Europe, except Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 3,671 | 3,511 | 4,454
Middle East, Africa and Oceania |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,503 | 2,178 | 2,738
Japan |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 2,213 | 2,603 | 2,743
China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 23,140 | 18,242 | 15,242
Asia, except Japan and China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 3,256 | 3,312 | 3,666
Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 2,908 | 3,348 | 3,248
Ferrous minerals |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 32,078 | 30,005 | 27,933
Ferrous minerals | Americas, except United States and Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 334 | 523 | 820
Ferrous minerals | United States of America |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 244 | 404 | 388
Ferrous minerals | Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 357 | 1,161 | 1,130
Ferrous minerals | Europe, except Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,214 | 1,514 | 2,218
Ferrous minerals | Middle East, Africa and Oceania |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,418 | 2,083 | 2,562
Ferrous minerals | Japan |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,793 | 2,057 | 2,072
Ferrous minerals | China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 22,202 | 17,572 | 14,381
Ferrous minerals | Asia, except Japan and China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 2,068 | 2,032 | 1,798
Ferrous minerals | Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 2,448 | 2,659 | 2,564
Base metals |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 7,170 | 6,161 | 6,703
Base metals | Americas, except United States and Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 286 | 835 | 658
Base metals | United States of America |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 797 | 931 | 952
Base metals | Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 1,309 | 522 | 523
Base metals | Europe, except Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 2,356 | 1,715 | 1,800
Base metals | Middle East, Africa and Oceania |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 17 | 20 | 25
Base metals | Japan |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 400 | 426 | 508
Base metals | China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 922 | 670 | 861
Base metals | Asia, except Japan and China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 931 | 816 | 1,101
Base metals | Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 152 | 226 | 275
Coal |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 473 | 1,021 | 1,643
Coal | Europe, except Germany |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 101 | 282 | 436
Coal | Middle East, Africa and Oceania |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 68 | 75 | 151
Coal | Japan |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 20 | 120 | 163
Coal | China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 16 |  |
Coal | Asia, except Japan and China |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 257 | 464 | 767
Coal | Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 11 | 80 | 126
Others |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | 297 | 383 | 296
Others | United States of America |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue |  |  | 13
Others | Brazil |  |  |
Information by business segment and by geographic area |  |  |
Net operating revenue | $ 297 | $ 383 | $ 283

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