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Equity - Appropriations of Earnings and Dividends Per Share (Detail) $ / shares in Units, $ in Millions, $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2024 TWD ($) $ / shares	Sep. 30, 2024 TWD ($) $ / shares	Jun. 30, 2024 TWD ($) $ / shares	Mar. 31, 2024 TWD ($) $ / shares	Dec. 31, 2023 TWD ($) $ / shares	Sep. 30, 2023 TWD ($) $ / shares	Jun. 30, 2023 TWD ($) $ / shares	Mar. 31, 2023 TWD ($) $ / shares	Dec. 31, 2022 TWD ($) $ / shares	Sep. 30, 2022 TWD ($) $ / shares	Jun. 30, 2022 TWD ($) $ / shares	Mar. 31, 2022 TWD ($) $ / shares	Dec. 31, 2024 TWD ($)	Dec. 31, 2023 TWD ($)	Dec. 31, 2022 TWD ($)	Dec. 31, 2024 USD ($)
Resolution date of TSMC's Board of Directors in its meeting													Feb. 12, 2025	Feb. 06, 2024	Feb. 14, 2023
Special capital reserve	$ 311,147.0				$ 311,147.0								$ 311,147.0	$ 311,147.0		$ 9,489.1
Cash dividends per share | $ / shares	$ 4.5	$ 4.5	$ 4	$ 4	$ 3.5	$ 3.5	$ 3	$ 3	$ 2.75	$ 2.75	$ 2.75	$ 2.75
Appropriation of earnings [member]
Resolution date of TSMC's Board of Directors in its meeting	Feb. 12, 2025	Nov. 12, 2024	Aug. 13, 2024	May 10, 2024	Feb. 06, 2024	Nov. 14, 2023	Aug. 08, 2023	May 09, 2023	Feb. 14, 2023	Nov. 08, 2022	Aug. 09, 2022	May 10, 2022
Special capital reserve	$ 0.0	$ 0.0	$ 0.0	$ (28,020.8)	$ 28,020.8	$ 17,228.4	$ (6,365.5)	$ 3,273.5	$ 17,166.2	$ 31,910.4	$ (12,002.8)	$ (15,541.0)	$ 0.0	$ 28,020.8	$ 17,166.2
Cash dividends to shareholders	$ 116,697.3	$ 116,697.3	$ 103,721.5	$ 103,734.5	$ 90,762.2	$ 90,762.3	$ 77,796.2	$ 77,796.2	$ 71,308.5	$ 71,308.5	$ 71,308.5	$ 71,308.5

X

- Definition

A component of equity representing the capital reserves.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
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-URIDate 2024-03-27

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X

- Definition

The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount, per share, of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 107
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_107&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

Resolution date of board meeting.

+ References

No definition available.

+ Details

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