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Legal proceedings (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Tax Litigation [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Effects in income statements |  | $ (1) | $ (2) | $ (5)
Civil Litigation [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Effects in income statements | 55 | (6) | 39 | (18)
Labor Litigation [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Effects in income statements | (57) | (45) | (96) | (78)
Environmental Litigation [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Effects in income statements | (31) | (2) | (31) | (3)
Legal proceedings provision [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Effects in income statements | $ (33) | $ (54) | $ (90) | $ (104)

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