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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, 2024
Dec. 31, 2023
Dec. 31, 2022
Expense by Nature [line items]      
Resolution date of TSMC's Board of Directors in its meeting Feb. 12, 2025 Feb. 06, 2024 Feb. 14, 2023
Bonus to Employees [member]      
Expense by Nature [line items]      
Profit sharing bonus to employees $ 70,296.3 $ 50,090.5 $ 60,702.0
Compensation to Directors [member]      
Expense by Nature [line items]      
Compensation to directors $ 359.0 $ 552.0 $ 690.1