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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, 2017 $ 382,124   $ 77,574   $ 148,091   $ 77,574   $ 2,681   $ 67,026   $ 147,281   $ (174)   $ 883   $ (1)   $ 708   $ 373,654   $ 8,470  
Reversal of special reserve 0   0   0   0   (5)   5   0   0   0   0   0   0   0  
Cash dividends paid or distributed by Chunghwa (37,205)   0   0   0   0   (37,205)   (37,205)   0   0   0   0   (37,205)   0  
Cash dividends distributed by subsidiaries (958)   0   0   0   0   0   0   0   0   0   0   0   (958)  
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                                                 0  
Partial disposal of interests in subsidiaries 1,175   0   826   0   0   0   0   0   0   0   0   826   349  
Change in additional paid-in capital for not participating proportionately in the capital increase of subsidiaries 1,477   0   777   0   0   0   0   0   0   0   0   777   700  
Net income 38,581   0   0   0   0   37,557   37,557   0   0   0   0   37,557   1,024  
Total other comprehensive income (loss), net of income tax (1,014)   0   0   0   0   (757)   (757)   95   (345)   2   (248)   (1,005)   (9)  
TOTAL COMPREHENSIVE INCOME 37,567   0   0   0   0   36,800   36,800   95   (345)   2   (248)   36,552   1,015  
Share-based payment transactions of subsidiaries 53   0   11   0   0   0   0   0   0   0   0   11   42  
Net increase (decrease) in noncontrolling interests 294   0   55   0   0   0   0   0   0   0   0   55   239  
Ending balance at Dec. 31, 2018 384,529   77,574   149,762   77,574   2,676   66,626   146,876   (79)   538   1   460   374,672   9,857  
Effect of retrospective application (IFRS16 [Member]) at Dec. 31, 2018 (71)   0   0   0   0   (51)   (51)   0   0   0   0   (51)   (20)  
BALANCE, AS ADJUSTED 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 paid or 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  
Partial disposal of interests in subsidiaries                                                 0  
Net income 33,921   0   0   0   0   32,947   32,947   0   0   0   0   32,947   974  
Total other comprehensive income (loss), net of income tax 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 paid or 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)  
Partial disposal of interests in subsidiaries                                                 0  
Change in additional paid-in capital for not participating proportionately in the capital increase of subsidiaries 0   0   0   0   0   0   0   0   0   0   0   0   0  
Net income 34,704 $ 1,236 0   0   0   0   33,419   33,419   0   0   0   0   33,419   1,285  
Total other comprehensive income (loss), net of income tax 1,290 46 0   0   0   0   937   937   (167)   522   2   357   1,294   (4)  
TOTAL COMPREHENSIVE INCOME 35,994 1,282 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 $ 13,791 $ 77,574 $ 2,763 $ 149,790 $ 5,334 $ 77,574 $ 2,763 $ 2,676 $ 95 $ 67,574 $ 2,406 $ 147,824 $ 5,264 $ (315) $ (11) $ 1,240 $ 44 $ 2 $ 0 $ 927 $ 33 $ 376,115 $ 13,394 $ 11,158 $ 397