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Additional Information of Expenses by Nature - Summary of Profit Sharing Bonus to Employees and Compensation to Directors (Detail) - TWD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Expense by Nature [line items]      
Resolution date of TSMC's Board of Directors in its meeting Feb. 15, 2022 Feb. 09, 2021 Feb. 11, 2020
Bonus to Employees [member]      
Expense by Nature [line items]      
Profit sharing bonus to employees $ 35,601.5 $ 34,753.2 $ 23,165.7
Compensation to Directors [member]      
Expense by Nature [line items]      
Compensation to directors $ 487.5 $ 509.8 $ 360.4