Accumulated gain or loss on hedging instruments in other equity continuing hedges.

No definition available.

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- Definition

Derivative contract, cross currency.

+ References

No definition available.

+ Details

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- Definition

Derivative forward rate.

+ References

No definition available.

+ Details

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- Definition

Description of derivative financial instruments maturity period.

+ References

No definition available.

+ Details

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- Definition

Gain loss on change in value of hedging instrument used as basis for recognising hedge ineffectiveness.

+ References

No definition available.

+ Details

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- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The gain (loss) on the change in fair value of the hedging instrument used as a basis for recognising hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 24A
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24A_c&doctype=Standard
-URIDate 2018-03-16

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Details

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- Details

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- Details

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Hedging Derivative Financial Instruments - Summary of Hedging Instrument (Details) - Cash flow hedges [member] € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 TWD ($)	Dec. 31, 2018 EUR (€)	Dec. 31, 2017 TWD ($)
Disclosure Of Detailed Information About Hedging Instruments [Line Items]
Cash flow hedge-forward exchange contracts, financial liabilities	$ 0		$ 1
Forecast Purchases - forward Exchange Contract [Member]
Disclosure Of Detailed Information About Hedging Instruments [Line Items]
Change in Value of Hedged Item Used for Calculating Hedge Ineffectiveness	(2)
Accumulated Gain or Loss on Hedging Instruments in Other Equity Continuing Hedges	$ 1
Foreign currency risk [Member] \| Forecast Purchases - forward Exchange Contract [Member]
Disclosure Of Detailed Information About Hedging Instruments [Line Items]
Currency	EUR/NT$
Contract Amount	$ 172	€ 5
Maturity Period	2019.03
Forward Rate	34.98
Carrying Amount of Asset	$ 1
Change in Fair Values of Hedging Instruments Used for Calculating Hedge Ineffectiveness	$ 2