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Retirement Employee Benefits - Schedule of Main Actuarial Assumptions at Reporting Date (Detail)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of defined benefit plans [abstract]      
Discount of the projected benefit obligation at present value 10.70% 9.70% 10.20%
Salary increase 6.20% 5.30% 6.00%
Remaining labor life 16 years 4 months 24 days 15 years 10 months 24 days 15 years 8 months 12 days
Inflation 4.20% 3.80% 5.80%