Equity - Appropriations of Earnings and Dividends Per Share (Detail) $ / shares in Units, $ in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||
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Dec. 31, 2023
TWD ($)
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Dec. 31, 2023
TWD ($)
$ / shares
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Sep. 30, 2023
TWD ($)
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Sep. 30, 2023
TWD ($)
$ / shares
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Jun. 30, 2023
TWD ($)
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Jun. 30, 2023
TWD ($)
$ / shares
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Mar. 31, 2023
TWD ($)
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Mar. 31, 2023
TWD ($)
$ / shares
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Dec. 31, 2022
TWD ($)
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Dec. 31, 2022
TWD ($)
$ / shares
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Sep. 30, 2022
TWD ($)
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Sep. 30, 2022
TWD ($)
$ / shares
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Jun. 30, 2022
TWD ($)
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Jun. 30, 2022
TWD ($)
$ / shares
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Mar. 31, 2022
TWD ($)
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Mar. 31, 2022
TWD ($)
$ / shares
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Dec. 31, 2021
TWD ($)
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Dec. 31, 2021
TWD ($)
$ / shares
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Sep. 30, 2021
TWD ($)
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Sep. 30, 2021
TWD ($)
$ / shares
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Jun. 30, 2021
TWD ($)
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Jun. 30, 2021
TWD ($)
$ / shares
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Mar. 31, 2021
TWD ($)
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Mar. 31, 2021
TWD ($)
$ / shares
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Dec. 31, 2023
TWD ($)
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Dec. 31, 2022
TWD ($)
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Dec. 31, 2021
TWD ($)
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Dec. 31, 2023
USD ($)
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| Resolution date of TSMC's Board of Directors in its meeting | Feb. 06, 2024 | Feb. 14, 2023 | Feb. 15, 2022 | |||||||||||||||||||||||||
| Special capital reserve | $ 311,147.0 | $ 311,147.0 | $ 311,147.0 | $ 311,147.0 | $ 311,147.0 | $ 311,147.0 | $ 10,161.5 | |||||||||||||||||||||
| Cash dividends to shareholders | $ / shares | $ 3.5 | $ 3.5 | $ 3 | $ 3 | $ 2.75 | $ 2.75 | $ 2.75 | $ 2.75 | $ 2.75 | $ 2.75 | $ 2.75 | $ 2.75 | ||||||||||||||||
| Appropriation of earnings [member] | ||||||||||||||||||||||||||||
| Resolution date of TSMC's Board of Directors in its meeting | Feb. 06, 2024 | Nov. 14, 2023 | Aug. 08, 2023 | May 09, 2023 | Feb. 14, 2023 | Nov. 08, 2022 | Aug. 09, 2022 | May 10, 2022 | Feb. 15, 2022 | Nov. 09, 2021 | Aug. 10, 2021 | Jun. 09, 2021 | ||||||||||||||||
| Special capital reserve | $ 28,020.8 | $ 28,020.8 | $ (17,228.4) | $ (17,228.4) | $ (6,365.5) | $ (6,365.5) | $ 3,273.5 | $ 3,273.5 | $ 17,166.2 | $ 17,166.2 | $ (31,910.4) | $ (31,910.4) | $ (12,002.8) | $ (12,002.8) | $ (15,541.0) | $ (15,541.0) | $ 3,304.3 | $ 3,304.3 | $ 710.2 | $ 710.2 | $ 10,201.2 | $ 10,201.2 | $ (6,287.0) | $ (6,287.0) | $ 28,020.8 | $ 17,166.2 | $ 3,304.3 | |
| Cash dividends to shareholders | $ 90,762.2 | $ 90,762.3 | $ 77,796.2 | $ 77,796.2 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | $ 71,308.5 | ||||||||||||||||