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Financial Instruments at Fair Value through Profit or Loss (Additional Information) (Details) - TWD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Jan. 31, 2022
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Disclosure of detailed information about financial instruments [line items] |  |  |
Non-current non-derivative financial assets | $ 1,005 | $ 1,036 |
Taiwania Capital Buffalo Fund VI, L.P. [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Non-current non-derivative financial assets | $ 300 |  | $ 600

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- Definition Noncurrent nonderivative financial assets. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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