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Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) $ in Millions, $ in Millions	Dec. 31, 2023 TWD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 TWD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 TWD ($)	Dec. 31, 2020 TWD ($)
Cash
Cash on hand	$ 404		$ 472
Bank deposits	9,522		10,423
Cash	9,926		10,895
Cash equivalents (with maturities of less than three months)
Commercial paper	14,496		19,592
Negotiable certificates of deposit	5,900		15,500
Time deposits	3,502		4,206
Stimulus Vouchers	0		0
Cash equivalents	23,898		39,298
Cash and cash equivalents	$ 33,824	$ 1,105	$ 50,193	$ 1,639	$ 39,779	$ 30,420

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Negotiable certificates of deposit amount.

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Stimulus vouchers.

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Time deposits with banks that have specified date of maturity.

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- Definition

The amount of cash balances held at banks.

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The amount of cash on hand and demand deposits. [Refer: Cash on hand]

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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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The amount of cash held by the entity. This does not include demand deposits.

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A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents]

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