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Net Revenue - Summary of Disaggregation of Revenue from Contracts with Customers Based on Resolution (Detail) - TWD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers $ 2,161,735.8 $ 2,263,891.3 $ 1,587,415.0
Wafer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 1,882,518.1 1,991,855.9 1,405,300.3
Wafer [member] | 3-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 108,045.3    
Wafer [member] | 5-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 629,300.4 508,689.9 262,327.4
Wafer [member] | 7-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 357,247.4 535,153.8 440,383.1
Wafer [member] | 10-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 23.3 24.9 660.0
Wafer [member] | 16-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 191,306.1 258,544.3 191,058.9
Wafer [member] | 20-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 10,359.0 8,853.3 5,668.8
Wafer [member] | 28-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 186,924.9 206,611.9 153,066.6
Wafer [member] | 40/45-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 114,667.4 145,546.2 103,413.6
Wafer [member] | 65-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 107,425.4 93,288.6 66,467.9
Wafer [member] | 90-nanometer [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 25,642.0 40,184.2 32,260.3
Wafer [member] | 0.11/0.13 micron [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 47,149.3 57,992.3 40,558.5
Wafer [member] | 0.15/0.18 micron [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers 86,614.2 110,571.2 86,700.3
Wafer [member] | 0.25 micron and above [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue from contracts with customers $ 17,813.4 $ 26,395.3 $ 22,734.9