XML 170 R156.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Equity - Adjustments of Additional Paid-in Capital (Detail)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Dec. 31, 2021
TWD ($)
Beginning balance $ 391,529   $ 389,130 $ 387,273
Unclaimed dividend 2   2 2
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method (26)     1
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries     15  
Share-based payment transactions of subsidiaries 33   89 73
Ending balance 392,719 $ 12,826 391,529 389,130
Share premium [Member]        
Beginning balance 126,045   126,045 126,045
Unclaimed dividend 0   0 0
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       0
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries 0   0  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 0   0 0
Ending balance 126,045   126,045 126,045
Movements Of Additional Paid-in Capital For Associates And Joint Ventures Accounted For Using Equity Method        
Beginning balance 1   1 0
Unclaimed dividend 0   0 0
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       1
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries (26)   0  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 0   0 0
Ending balance (25)   1 1
Movements of additional paid-in capital arising from changes in equities of subsidiaries [Member]        
Beginning balance 2,138   2,106 2,089
Unclaimed dividend 0   0 0
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       0
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries 0   5  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 8   27 17
Ending balance 2,146   2,138 2,106
Difference between consideration received or paid and carrying amount of subsidiaries net assets during actual disposal or acquisition [Member]        
Beginning balance 987   987 987
Unclaimed dividend 0   0 0
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       0
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries 0   0  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 0   0 0
Ending balance 987   987 987
Donated capital [Member]        
Beginning balance 25   23 21
Unclaimed dividend 2   2 2
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       0
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries 0   0  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 0   0 0
Ending balance 27   25 23
Stockholders' contribution due to privatization [Member]        
Beginning balance 20,648   20,648 20,648
Unclaimed dividend 0   0 0
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method       0
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries 0   0  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 0   0 0
Ending balance 20,648   20,648 20,648
Additional paid-in capital [Member]        
Beginning balance 149,844   149,810 149,790
Unclaimed dividend 2   2 2
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method (26)     1
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries (26)   5  
Actual acquisition of interests in subsidiaries 0      
Share-based payment transactions of subsidiaries 8   27 17
Ending balance $ 149,828 $ 4,893 $ 149,844 $ 149,810