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Additional Information of Expenses by Nature - Summary of Accrued Profit Sharing Bonus to Employees (Detail) - TWD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Bonus to Employees [member] |  |  |
Expense by Nature [line items] |  |  |
Accrued profit sharing bonus to employees | $ 70,296.3 | $ 50,090.5 | $ 60,702.0

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- Definition Accrued profit sharing bonus. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose the amount of expenses aggregated according to their nature (for example, depreciation, purchases of materials, transport costs, employee benefits and advertising costs), and not reallocated among functions within the entity. + References No definition available. + Details
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Period Type: | duration

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- Details
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Period Type: |