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Inventories - Summary of Inventories (Detail) $ in Millions, $ in Millions	Dec. 31, 2023 TWD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 TWD ($)
Classes of current inventories [abstract]
Merchandise	$ 4,340		$ 3,978
Project in process	4,771		4,859
Work in process	74		98
Raw materials	221		279
Inventories subtotal	9,406		9,214
Land held under development	1,999		1,999
Construction in progress	116		103
Inventories	$ 11,521	$ 376	$ 11,316

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Current project in progress.

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Land held under development.

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The amount of expenditure capitalised during the construction of non-current assets that are not yet available for use. [Refer: Non-current assets]

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A classification of current inventory representing the amount of materials and supplies to be consumed in a production process or while rendering services. [Refer: Inventories]

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The amount of current inventories. [Refer: Inventories]

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A classification of current inventory representing the amount of assets to be consumed in the production process or in the rendering of services. [Refer: Inventories]

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A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories]

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