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Post-retirement benefits (Tables) | 12 Months Ended
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Dec. 31, 2024
Text Block 1 [Abstract] |
Summary of Post Retirement Benefits |
|  | Note |  |  | 12.31.2024 |  |  | 12.31.2023 |
Post-employment health care benefit plans in Brazil |  |  | 25.1.1 |  |  |  | 31.6 |  |  |  | 46.1 |
Other post-employment benefit plans offered abroad |  |  | (i | ) |  |  | 2.8 |  |  |  | 1.9 |
Post-retirement benefits |  |  |  |  |  |  | 34.4 |  |  |  | 48.0 |
Summary of reconciliation | The following table shows a reconciliation from the opening balances to the closing balances:
|  | 12.31.2024 |  |  | 12.31.2023 |
Balance at beginning of year |  |  | 46.1 |  |  |  | 34.2 |
Current service cost |  |  | 0.1 |  |  |  | 0.1 |
Interest expense |  |  | 3.9 |  |  |  | 3.8 |
Remeasurement losses (gains): |  |  |  |  |  |  |  |
Experience loss |  |  | 1.2 |  |  |  | 3.9 |
(Gain) loss due to change in financial assumptions |  |  | (4.5 | ) |  |  | 2.8 |
Gain due to change in demographic assumptions |  |  | (4.5 | ) |  |  | — |
Benefits paid |  |  | (1.3 | ) |  |  | (1.7 | )
Translation adjustments |  |  | (9.4 | ) |  |  | 3.0 |
Balance at end of year |  |  | 31.6 |  |  |  | 46.1 |
Summary of Retirement probability |
|  | 12.31.2024 |  |  | 12.31.2023 |
Discount rate |  |  | 7.45% p.a. |  |  |  | 5.47% p.a. |
Health care cost trend rate: medical inflation |  |  | 3% p.a. |  |  |  | 5% p.a. |
Aging factor |  |  | 3% p.a. |  |  |  | 3% p.a. |
Summary of the reasonably possible changes | As of December 31, 2024, reasonably possible changes (1%) in each of the actuarial assumptions described below, holding other assumptions constant, would have (increased) or reduced the defined benefit obligation as shown below:
|  | Increase |  |  | Reduction |
Effect on the discount rate |  |  | 3.6 |  |  |  | (4.4 | )
Effect on medical inflation |  |  | (4.3 | ) |  |  | 3.6 |

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