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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 (loss) on available-for-sale financial assets [Member]
TWD ($)
Unrealized gain (loss) on available-for-sale financial assets [Member]
USD ($)
Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]
TWD ($)
Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]
USD ($)
Cash flow hedges [Member]
TWD ($)
Cash flow hedges [Member]
USD ($)
Gain or Loss on hedging instruments [Member]
TWD ($)
Gain or Loss on hedging instruments [Member]
USD ($)
Total other adjustments [Member]
TWD ($)
Total other adjustments [Member]
USD ($)
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, 2016 $ 366,928   $ 77,574   $ 147,180   $ 77,574   $ 2,676   $ 55,657   $ 135,907   $ 46   $ (51)   $ 0   $ 0   $ 0   $ (5)   $ 360,656   $ 6,272  
Provision for special reserve 0   0   0   0   5   (5)   0   0   0   0   0   0   0   0   0  
Cash dividends paid or distributed by Chunghwa (38,336)   0   0   0   0   (38,336)   (38,336)   0   0   0   0   0   0   (38,336)   0  
Cash dividends distributed by subsidiaries (942)   0   0   0   0   0   0   0   0   0   0   0   0   0   (942)  
Unclaimed dividend 3   0   3   0   0   0   0   0   0   0   0   0   0   3   0  
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0  
Partial disposal of interests in subsidiaries 106   0   77   0   0   0   0   0   0   0   0   0   0   77   29  
Change in additional paid-in capital for not participating proportionately in the capital increase of subsidiaries 2,552   0   802   0   0   0   0   0   0   0   0   0   0   802   1,750  
Other changes in additional paid-in capital of subsidiaries 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0  
Net income 40,160   0   0   0   0   38,988   38,988   0   0   0   0   0   0   38,988   1,172  
Total other comprehensive income (loss), net of income tax (1,306)   0   0   0   0   (1,671)   (1,671)   (220)   609   0   (1)   0   388   (1,283)   (23)  
TOTAL COMPREHENSIVE INCOME 38,854   0   0   0   0   37,317   37,317   (220)   609   0   (1)   0   388   37,705   1,149  
Share-based payment transactions of subsidiaries 22   0   2   0   0   0   0   0   0   0   0   0   0   2   20  
Net increase (decrease) in noncontrolling interests 223   0   27   0   0   0   0   0   0   0   0   0   0   27   196  
Ending balance at Dec. 31, 2017 369,410   77,574   148,091   77,574   2,681   54,633   134,888   (174)   558   0   (1)   0   383   360,936   8,474  
Effect of retrospective application (IFRS9 and IFRS15 [Member]) at Dec. 31, 2017 12,714   0   0   0   0   12,393   12,393   0   (558)   883   1   (1)   325   12,718   (4)  
BALANCE, AS ADJUSTED at Dec. 31, 2017 382,124   77,574   148,091   77,574   2,681   67,026   147,281   (174)   0   883   0   (1)   708   373,654   8,470  
Reversal of special reserve 0   0   0   0   (5)   5   0   0   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   0   0   (37,205)   0  
Cash dividends distributed by subsidiaries (958)   0   0   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   0   0   2   0  
Partial disposal of interests in subsidiaries 1,175   0   826   0   0   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   0   0   777   700  
Other changes in additional paid-in capital of subsidiaries                                                         0  
Net income 38,581   0   0   0   0   37,557   37,557   0   0   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   0   (345)   0   2   (248)   (1,005)   (9)  
TOTAL COMPREHENSIVE INCOME 37,567   0   0   0   0   36,800   36,800   95   0   (345)   0   2   (248)   36,552   1,015  
Share-based payment transactions of subsidiaries 53   0   11   0   0   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   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)   0   538   0   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   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)   0   538   0   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   0   0   (34,746)   0  
Cash dividends distributed by subsidiaries (710)   0   0   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   0   0   1   0  
Partial disposal of interests in subsidiaries                                                         0  
Other changes in additional paid-in capital of subsidiaries                                                         0  
Net income 33,921 $ 1,134 0   0   0   0   32,947   32,947   0   0   0   0   0   0   32,947   974  
Total other comprehensive income (loss), net of income tax 1,328 44 0   0   0   0   1,208   1,208   (69)   0   197   0   (1)   127   1,335   (7)  
TOTAL COMPREHENSIVE INCOME 35,249 1,178 0   0   0   0   34,155   34,155   (69)   0   197   0   (1)   127   34,282   967  
Share-based payment transactions of subsidiaries 21   0   (1)   0   0   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   0   0   (1)  
Ending balance at Dec. 31, 2019 $ 384,272 $ 12,848 $ 77,574 $ 2,594 $ 149,762 $ 5,007 $ 77,574 $ 2,594 $ 2,676 $ 89 $ 65,984 $ 2,206 $ 146,234 $ 4,889 $ (148) $ (5) $ 0 $ 0 $ 735 $ 25 $ 0 $ 0 $ 0 $ 0 $ 587 $ 20 $ 374,157 $ 12,510 $ 10,115 $ 338