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Consolidated Statements of Changes in Equity
$ in Millions, $ in Millions
TWD ($)
USD ($)
Common stocks [Member]
TWD ($)
Common stocks [Member]
USD ($)
Additional paid-in capital [Member]
TWD ($)
Additional paid-in capital [Member]
USD ($)
Legal reserve [Member]
TWD ($)
Legal reserve [Member]
USD ($)
Special reserve [Member]
TWD ($)
Special reserve [Member]
USD ($)
Unappropriated earnings [Member]
TWD ($)
Unappropriated earnings [Member]
USD ($)
Total retained earnings [Member]
TWD ($)
Total retained earnings [Member]
USD ($)
Exchange differences arising from the translation of the foreign operations [Member]
TWD ($)
Exchange differences arising from the translation of the foreign operations [Member]
USD ($)
Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]
TWD ($)
Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]
USD ($)
Gain or Loss on hedging instruments [Member]
TWD ($)
Gain or Loss on hedging instruments [Member]
USD ($)
Total Others [member]
TWD ($)
Total Others [member]
USD ($)
Total equity attributable to stockholders of the parent [Member]
TWD ($)
Total equity attributable to stockholders of the parent [Member]
USD ($)
Noncontrolling interests [Member]
TWD ($)
Noncontrolling interests [Member]
USD ($)
Beginning balance at Dec. 31, 2018 $ 384,458   $ 77,574   $ 149,762   $ 77,574   $ 2,676   $ 66,575   $ 146,825   $ (79)   $ 538   $ 1   $ 460   $ 374,621   $ 9,837  
Cash dividends distributed by Chunghwa (34,746)   0   0   0   0   (34,746)   (34,746)   0   0   0   0   (34,746)   0  
Cash dividends distributed by subsidiaries (710)   0   0   0   0   0   0   0   0   0   0   0   (710)  
Unclaimed dividend 1   0   1   0   0   0   0   0   0   0   0   1   0  
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method                                                 0  
Net income 33,921   0   0   0   0   32,947   32,947   0   0   0   0   32,947   974  
Other comprehensive income (loss) 1,328   0   0   0   0   1,208   1,208   (69)   197   (1)   127   1,335   (7)  
TOTAL COMPREHENSIVE INCOME 35,249   0   0   0   0   34,155   34,155   (69)   197   (1)   127   34,282   967  
Share-based payment transactions of subsidiaries 21   0   (1)   0   0   0   0   0   0   0   0   (1)   22  
Net increase (decrease) in noncontrolling interests (1)   0   0   0   0   0   0   0   0   0   0   0   (1)  
Ending balance at Dec. 31, 2019 384,272   77,574   149,762   77,574   2,676   65,984   146,234   (148)   735   0   587   374,157   10,115  
Cash dividends distributed by Chunghwa (32,783)   0   0   0   0   (32,783)   (32,783)   0   0   0   0   (32,783)   0  
Cash dividends distributed by subsidiaries (775)   0   0   0   0   0   0   0   0   0   0   0   (775)  
Unclaimed dividend 2   0   2   0   0   0   0   0   0   0   0   2   0  
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method (2)   0   0   0   0   0   0   0   0   0   0   0   (2)  
Net income 34,704   0   0   0   0   33,419   33,419   0   0   0   0   33,419   1,285  
Other comprehensive income (loss) 1,290   0   0   0   0   937   937   (167)   522   2   357   1,294   (4)  
TOTAL COMPREHENSIVE INCOME 35,994   0   0   0   0   34,356   34,356   (167)   522   2   357   34,713   1,281  
Disposal of investments in equity instruments at fair value through other comprehensive income 0   0   0   0   0   17   17   0   (17)   0   (17)   0   0  
Share-based payment transactions of subsidiaries 89   0   26   0   0   0   0   0   0   0   0   26   63  
Net increase (decrease) in noncontrolling interests 476   0   0   0   0   0   0   0   0   0   0   0   476  
Ending balance at Dec. 31, 2020 387,273   77,574   149,790   77,574   2,676   67,574   147,824   (315)   1,240   2   927   376,115   11,158  
Cash dividends distributed by Chunghwa (33,404)   0   0   0   0   (33,404)   (33,404)   0   0   0   0   (33,404)   0  
Cash dividends distributed by subsidiaries (896)   0   0   0   0   0   0   0   0   0   0   0   (896)  
Unclaimed dividend 2   0   2   0   0   0   0   0   0   0   0   2   0  
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method 1   0   1   0   0   0   0   0   0   0   0   1   0  
Net income 37,047 $ 1,336 0   0   0   0   35,616   35,616   0   0   0   0   35,616   1,431  
Other comprehensive income (loss) (966) (35) 0   0   0   0   311   311   (77)   (1,188)   (10)   (1,275)   (964)   (2)  
TOTAL COMPREHENSIVE INCOME 36,081 1,301 0   0   0   0   35,927   35,927   (77)   (1,188)   (10)   (1,275)   34,652   1,429  
Disposal of investments in equity instruments at fair value through other comprehensive income 0   0   0   0   0   60   60   0   (60)   0   (60)   0   0  
Share-based payment transactions of subsidiaries 73   0   17   0   0   0   0   0   0   0   0   17   56  
Net increase (decrease) in noncontrolling interests                                                 0  
Ending balance at Dec. 31, 2021 $ 389,130 $ 14,028 $ 77,574 $ 2,796 $ 149,810 $ 5,401 $ 77,574 $ 2,796 $ 2,676 $ 97 $ 70,157 $ 2,529 $ 150,407 $ 5,422 $ (392) $ (15) $ (8) $ 0 $ (8) $ 0 $ (408) $ (15) $ 377,383 $ 13,604 $ 11,747 $ 424