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SEGMENT INFORMATION - Geographical Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of geographical areas [line items] |  |
Non-current assets | $ 38,641 | $ 38,425
Revenue | 11,985 | 12,595
United States |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 16,355 | 16,233
Revenue | 6,134 | 6,298
Mali |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 4,709 | 4,659
Revenue | 1,249 | 1,208
Dominican Republic |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 4,602 | 4,219
Revenue | 1,514 | 1,613
Democratic Republic of Congo |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 3,267 | 3,278
Revenue | 0 | 0
Chile |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 1,937 | 2,027
Revenue | 0 | 0
Zambia |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 1,793 | 1,720
Revenue | 962 | 697
Tanzania |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 1,767 | 1,703
Revenue | 993 | 1,214
Argentina |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 1,739 | 1,686
Revenue | 382 | 333
Canada |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 517 | 479
Revenue | 291 | 407
Saudi Arabia |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 382 | 369
Revenue | 0 | 0
Papua New Guinea |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 330 | 347
Revenue | 0 | 140
Côte d'Ivoire |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 191 | 266
Revenue | 369 | 508
Peru |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 113 | 186
Revenue | 91 | 177
Unallocated |  |
Disclosure of geographical areas [line items] |  |
Non-current assets | 939 | 1,253
Revenue | $ 0 | $ 0

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