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]
Finished goods	$ 34,511.0		$ 54,818.4
Work in process	156,498.5		125,661.9
Raw materials	38,818.3		20,389.1
Supplies and spare parts	21,169.3		20,279.7
Inventories, total	$ 250,997.1	$ 8,197.2	$ 221,149.1

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A classification of current inventory representing the amount of goods that have completed the production process and are held for sale in the ordinary course of business. [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 interchangeable parts that are kept in an inventory and are used for the repair or replacement of failed parts. [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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