Lease Arrangements - Lease Liabilities (Detail) $ in Millions, $ in Millions	Dec. 31, 2021 TWD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 TWD ($)
Lease liabilities [abstract]
Current portion (classified under accrued expenses and other current liabilities)	$ 2,176.5		$ 1,828.0
Noncurrent portion	20,764.2	$ 748.5	20,560.6
Lease liabilities	$ 22,940.7		$ 22,388.6

The amount of current lease liabilities. [Refer: Lease liabilities]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2021-03-24

+ Details

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- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

+ Details

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- References

No definition available.

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- Definition

The amount of non-current lease liabilities. [Refer: Lease liabilities]

+ References

+ Details

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