XML 57 R26.htm IDEA: XBRL DOCUMENT
v3.20.1

Hedging Financial Instruments | 12 Months Ended
--- | ---
Dec. 31, 2019
Disclosure Of Detailed Information About Hedging Instruments [Abstract] |
Hedging Financial Instruments |
21. | HEDGING FINANCIAL INSTRUMENTS
Chunghwa’s hedge strategy is to enter forward exchange contracts - buy to avoid its foreign currency exposure to certain foreign currency denominated equipment payments in the following six months. In addition, Chunghwa’s management considers the market condition to determine the hedge ratio, and enters into forward exchange contracts with the banks to avoid the foreign currency risk. Chunghwa signed equipment purchase contracts with suppliers and entered into forward exchange contracts to avoid foreign currency risk exposure to Euro-denominated purchase commitments. Those forward exchange contracts were designated as cash flow hedges. When forecast purchases actually take place, basis adjustments are made to the initial carrying amounts of hedged items. For the hedges of highly probable forecast sales and purchases, as the critical terms (i.e. the notional amount, life and underlying) of the forward foreign exchange contracts and their corresponding hedged items are the same, the Company performs a qualitative assessment of effectiveness and it is expected that the value of the forward contracts and the value of the corresponding hedged items will systematically change in opposite direction in response to movements in the underlying exchange rates. The main source of hedge ineffectiveness in these hedging relationships is the effect of credit risks of the Company and the counterparty on the fair value of the forward exchange contracts. Such credit risks do not impact the fair value of the hedged item attributable to changes in foreign exchange rates. No other sources of ineffectiveness emerged from these hedging relationships. 2017 The hedging instrument was showed as follows:
|  | December 31, 2017 |
|  | NT$ |
|  | (In Millions) |
Hedging derivative financial assets |  |  |  |
Cash flow hedge - forward exchange contracts |  | $ | － |
Hedging derivative financial liabilities |  |  |  |
Cash flow hedge - forward exchange contracts |  | $ | 1 |
For the year ended December 31, 2017, losses arising from changes in fair value of the hedged items recognized in other comprehensive income was $1 million. Upon the completion of the purchase transaction, the amount deferred and recognized in equity initially will be reclassified into equipment as its carrying value. As of December 31, 2017, Chunghwa expected part of the equipment purchase transactions would not occur and reclassified the related gains of $2 million from equity to profit or loss which arising from the forward exchange contracts of the aforementioned transactions for the year ended December 31, 2017. The outstanding forward exchange contracts at the balance sheet dates were as follows:
|  | Currency |  | Maturity Period |  | Contract Amount (Millions)
December 31, 2017 |  |  |  |  |  |
Forward exchange contracts - buy |  | EUR/NT$ |  | 2018.03-06 |  | EUR4/NT$142
Loss (gain) arising from the hedging derivative financial instruments that have been reclassified from equity to initial cost of the property, plant and equipment were as follows:
|  | Year Ended December 31, 2017 |
|  | NT$ |
|  | (In Millions) |
Construction in progress and equipment to be accepted |  | $ | (2 | )
Starting from 2018 The following tables summarized the information relating to the hedges for foreign currency risk. December 31, 2018
|  |  |  | Notional Amount |  |  |  | Forward |  |  | Line Item in |  | Carrying Amount |  |  | Change in Fair Values of Hedging Instruments Used for Calculating |
Hedging Instruments |  | Currency |  | (In millions) |  | Maturity |  | Rate |  |  | Balance Sheet |  | Asset |  |  | Liability |  |  | Hedge Ineffectiveness |
|  |  |  |  |  |  |  |  |  |  |  |  |  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  |  |  |  |  |  |  |  |  | (In Millions) |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forecast purchases - forward exchange contracts |  | EUR/NT$ |  | EUR 5/ NT$ 172 |  | 2019.03 |  | $ | 34.98 |  |  | Hedging financial assets (liabilities) |  | $ | 1 |  |  | $ | — |  |  | $ | 2 |
|  |  |  |  |  | Accumulated Gain or Loss on Hedging Instruments in Other Equity |
Hedged Items |  | Change in Value of Hedged Item Used for Calculating Hedge Ineffectiveness |  |  | Continuing Hedges |  |  | Hedge Accounting No Longer Applied |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  | (In Millions) |  |  |  |  |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |
Forecast equipment purchases |  | $ | (2 | ) |  | $ | 1 |  |  | $ | — |
December 31, 2019
|  |  |  | Notional Amount |  |  |  | Forward |  |  | Line Item in |  | Carrying Amount |  |  | Change in Fair Values of Hedging Instruments Used for Calculating |
Hedging Instruments |  | Currency |  | (In millions) |  | Maturity |  | Rate |  |  | Balance Sheet |  | Asset |  |  | Liability |  |  | Hedge Ineffectiveness |
|  |  |  |  |  |  |  |  |  |  |  |  |  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  |  |  |  |  |  |  |  |  | (In Millions) |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forecast purchases - forward exchange contracts |  | EUR/NT$ |  | EUR 2/NT$ 84 |  | 2020.03 |  | $ | 33.66 |  |  | Hedging financial assets (liabilities) |  | $ | — |  |  | $ | — |  |  | $ | (1 | )
|  |  |  |  |  | Accumulated Gain or Loss on Hedging Instruments in Other Equity |
Hedged Items |  | Change in Value of Hedged Item Used for Calculating Hedge Ineffectiveness |  |  | Continuing Hedges |  |  | Hedge Accounting No Longer Applied |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  | (In Millions) |  |  |  |  |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |
Forecast equipment purchases |  | $ | 1 |  |  | $ | — |  |  | $ | — |
2018
|  | Comprehensive Income |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Reclassification from Equity to Profit or Loss and the Adjusted Line Item |
|  | Hedging Gain or Loss |  |  | Amount of Hedge Ineffectiveness |  |  | Line Item in which Hedge |  |  | Amount Reclassified to P/L and |  |  | Due to Hedged Future Cash Flows No |
Hedge |  | Recognized |  |  | Recognized in |  |  | Ineffectiveness |  |  | the Adjusted |  |  | Longer Expected |
Transaction |  | in OCI |  |  | Profit or Loss |  |  | is Included |  |  | Line Item |  |  | to Occur |
|  | NT$ |  |  | NT$ |  |  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forecast equipment purchases |  | $ | 2 |  |  | $ | — |  |  |  | — |  |  | $ | (4 | ) |  | $ | — |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Construction in progress and equipment to be accepted |  |  | Other gains and losses |
2019
|  | Comprehensive Income |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Reclassification from Equity to Profit or Loss and the Adjusted Line Item |
|  | Hedging Gain or Loss |  |  | Amount of Hedge Ineffectiveness |  |  | Line Item in which Hedge |  |  | Amount Reclassified to P/L and |  |  | Due to Hedged Future Cash Flows No |
Hedge |  | Recognized |  |  | Recognized in |  |  | Ineffectiveness |  |  | the Adjusted |  |  | Longer Expected |
Transaction |  | in OCI |  |  | Profit or Loss |  |  | is Included |  |  | Line Item |  |  | to Occur |
|  | NT$ |  |  | NT$ |  |  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |
Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forecast equipment purchases |  | $ | (1 | ) |  | $ | — |  |  |  | — |  |  | $ | (2 | ) |  | $ | — |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Construction in progress and equipment to be accepted |  |  | Other gains and losses |

X
- Definition Disclosure of hedging financial instruments explanatory. + References No definition available. + Details
Name: | cht_DisclosureOfHedgingFinancialInstrumentsExplanatory
Namespace Prefix: | cht_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration