The amount of current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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-IssueDate 2025-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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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.

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The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets]

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The amount of financial assets mandatorily measured at fair value through profit or loss in accordance with IFRS 9. [Refer: Financial assets at fair value through profit or loss]

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The amount of non-current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

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Contents of Significant Accounts - Financial Assets at Fair Value through Profit or Loss (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2025 TWD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 TWD ($)
Disclosure of financial assets [line items]
Total	$ 18,153,916		$ 18,456,932
Current	568,521	$ 18,123	606,018
Noncurrent	17,585,395	$ 560,580	17,850,914
Common stocks [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	8,823,146		8,759,564
Preferred stocks [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	3,861,674		3,475,613
Funds [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	4,956,553		5,792,863
Convertible bonds [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	438,024		363,430
Forward exchange contracts [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	1,859		2
Others [member]
Disclosure of financial assets [line items]
Financial assets mandatorily measured at fair value through profit or loss	$ 72,660		$ 65,460