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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, 2015 $ 369,339   $ 77,574   $ 146,733   $ 77,574   $ 2,676   $ 59,448   $ 139,698   $ 177   $ 91   $ 0   $ 1   $ 0   $ 269   $ 364,274   $ 5,065  
Cash dividends paid by Chunghwa (42,551)   0   0   0   0   (42,551)   (42,551)   0   0   0   0   0   0   (42,551)   0  
Cash dividends distributed by subsidiaries (710)   0   0   0   0   0   0   0   0   0   0   0   0   0   (710)  
Partial disposal of interests in subsidiaries 83   0   58   0   0   0   0   0   0   0   0   0   0   58   25  
Change in additional paid-in capital for not participating proportionately in the capital increase of a subsidiary 1,175   0   389   0   0   0   0   0   0   0   0   0   0   389   786  
Net income 41,626   0   0   0   0   40,485   40,485   0   0   0   0   0   0   40,485   1,141  
Total other comprehensive loss, net of income tax (2,056)   0   0   0   0   (1,725)   (1,725)   (131)   (142)   0   (1)   0   (274)   (1,999)   (57)  
TOTAL COMPREHENSIVE INCOME 39,570   0   0   0   0   38,760   38,760   (131)   (142)   0   (1)   0   (274)   38,486   1,084  
Share-based payment transactions of subsidiaries 17   0   0   0   0   0   0   0   0   0   0   0   0   0   17  
Net increase in noncontrolling interests 5   0   0   0   0   0   0   0   0   0   0   0   0   0   5  
Ending 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 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 a subsidiary 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 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 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 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 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 a subsidiary 1,477   0   777   0   0   0   0   0   0   0   0   0   0   777   700  
Net income 38,581 $ 1,260 0   0   0   0   37,557   37,557   0   0   0   0   0   0   37,557   1,024  
Total other comprehensive loss, net of income tax (1,014) (33) 0   0   0   0   (757)   (757)   95   0   (345)   0   2   (248)   (1,005)   (9)  
TOTAL COMPREHENSIVE INCOME 37,567 1,227 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 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 $ 12,562 $ 77,574 $ 2,534 $ 149,762 $ 4,893 $ 77,574 $ 2,534 $ 2,676 $ 87 $ 66,626 $ 2,177 $ 146,876 $ 4,798 $ (79) $ (3) $ 0 $ 0 $ 538 $ 18 $ 0 $ 0 $ 1 $ 0 $ 460 $ 15 $ 374,672 $ 12,240 $ 9,857 $ 322