XML 135 R102.htm IDEA: XBRL DOCUMENT v3.25.1
Intangible Assets - Summary of Intangible Assets (Detail)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2024
TWD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
TWD ($)
Dec. 31, 2022
TWD ($)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance $ 22,766.7   $ 25,999.2  
Ending balance 26,282.5 $ 801.5 22,766.7 $ 25,999.2
Cost [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 93,682.2   91,928.5 84,061.4
Additions 12,522.2   6,029.8 7,535.1
Disposals or retirements (5,478.4)   (4,289.2) (96.3)
Effect of exchange rate changes 323.9   13.1 428.3
Ending balance 101,049.9   93,682.2 91,928.5
Accumulated amortization and impairment [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 70,915.5   65,929.3 57,239.7
Additions 9,186.1   9,258.2 8,756.1
Disposals or retirements (5,369.8)   (4,289.1) (77.7)
Effect of exchange rate changes 35.6   17.1 11.2
Ending balance 74,767.4   70,915.5 65,929.3
Goodwill [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 5,796.4   5,791.8  
Ending balance 6,070.9   5,796.4 5,791.8
Goodwill [member] | Cost [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 5,796.4   5,791.8 5,379.2
Effect of exchange rate changes 274.5   4.6 412.6
Ending balance 6,070.9   5,796.4 5,791.8
Technology license fees [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 5,731.3   8,062.6  
Ending balance 5,379.7   5,731.3 8,062.6
Technology license fees [member] | Cost [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 26,221.4   25,759.0 23,534.0
Additions 2,378.4   461.1 2,253.0
Disposals or retirements (32.5)   0.0 (30.0)
Effect of exchange rate changes (0.8)   1.3 2.0
Ending balance 28,566.5   26,221.4 25,759.0
Technology license fees [member] | Accumulated amortization and impairment [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 20,490.1   17,696.4 14,912.4
Additions 2,730.0   2,792.4 2,793.5
Disposals or retirements (32.5)   0.0 (11.4)
Effect of exchange rate changes (0.8)   1.3 1.9
Ending balance 23,186.8   20,490.1 17,696.4
Software and system design costs [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 9,470.3   9,837.4  
Ending balance 13,178.4   9,470.3 9,837.4
Software and system design costs [member] | Cost [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 49,317.0   48,675.8 43,651.0
Additions 9,166.4   4,947.4 5,079.0
Disposals or retirements (5,235.3)   (4,289.2) (66.3)
Effect of exchange rate changes 31.0   (17.0) 12.1
Ending balance 53,279.1   49,317.0 48,675.8
Software and system design costs [member] | Accumulated amortization and impairment [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 39,846.7   38,838.4 34,121.6
Additions 5,470.2   5,308.1 4,774.5
Disposals or retirements (5,235.3)   (4,289.1) (66.3)
Effect of exchange rate changes 19.1   (10.7) 8.6
Ending balance 40,100.7   39,846.7 38,838.4
Patent and others [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 1,768.7   2,307.4  
Ending balance 1,653.5   1,768.7 2,307.4
Patent and others [member] | Cost [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 12,347.4   11,701.9 11,497.2
Additions 977.4   621.3 203.1
Disposals or retirements (210.6)      
Effect of exchange rate changes 19.2   24.2 1.6
Ending balance 13,133.4   12,347.4 11,701.9
Patent and others [member] | Accumulated amortization and impairment [member]        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Beginning balance 10,578.7   9,394.5 8,205.7
Additions 985.9   1,157.7 1,188.1
Disposals or retirements (102.0)      
Effect of exchange rate changes 17.3   26.5 0.7
Ending balance $ 11,479.9   $ 10,578.7 $ 9,394.5