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Provision for de-characterization of dam structures and asset retirement obligations - De-characterization of dam structures located in Brazil (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Additional provision | $ 65 | $ 27 |
Disbursements | (112) | (70) |
Translation adjustment | 257 |  |
Current liabilities | 849 |  | $ 1,036
Non-current liabilities | 2,700 |  | 2,446
Liabilities | 51,226 |  | 49,536
De Characterization Of Upstream Dams [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Balance at the beginning | 3,378 | 3,523 |
Additional provision |  | 37 |
Disbursements | (173) | (152) |
Present value valuation | 179 | (104) |
Translation adjustment | 277 | 240 |
Balance at the end | 3,661 | $ 3,544 |
Current liabilities | 502 |  | 357
Non-current liabilities | 3,159 |  | 3,021
Liabilities | $ 3,661 |  | $ 3,378

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