XML 79 R63.htm IDEA: XBRL DOCUMENT v3.21.1

Lease Arrangements (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Of Quantitative Information About Leases For Lessee [Abstract]

Summary of Right-of-use Assets

a. Right-of-use Assets

		December 31
		2019				2020
		NT$				NT$
		(In Millions)
Land and buildings
Handsets base stations		$	6,845			$	7,096
Others			1,916				1,708
Equipment			2,603				2,205
		$	11,364			$	11,009

		Year Ended December 31
		2019				2020
		NT$				NT$
		(In Millions)
Additions to right-of-use assets		$	3,803			$	3,796
Depreciation charge for right-of-use assets
Land and buildings
Handsets base stations		$	2,728			$	2,729
Others			821				786
Equipment			419				416
		$	3,968			$	3,931

Summary of Lease Liabilities

b.Lease liabilities

		December 31
		2019				2020
		NT$				NT$
		(In Millions)
Lease liabilities
Current		$	3,291			$	3,382
Noncurrent			6,467				6,215
		$	9,758			$	9,597

Summary of Range of Discount Rate for Lease Liabilities

Ranges of discount rates for lease liabilities were as follows:

		December 31
		2019		2020
Land and buildings
Handsets base stations		0.58%-1.18%		0.46%-1.18%
Others		0.58%-9.00%		0.46%-9.00%
Equipment		0.58%-4.50%		0.46%-2.99%

Summary of Total Cash Outflow for Leases

d. Other lease information

		Year Ended December 31
		2019				2020
		NT$				NT$
		(In Millions)
Expenses relating to low-value asset leases		$	7			$	8
Expenses relating to variable lease payments not included in      the measurement of lease liabilities		$	6			$	5
Total cash outflow for leases		$	3,826			$	3,776

X

- Definition

Disclosure of quantitative information about lease liabilities.

+ References

No definition available.

+ Details

Name:	cht_DisclosureOfQuantitativeInformationAboutLeaseLiabilitiesExplanatory
Namespace Prefix:	cht_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of significant unobservable inputs used in fair value measurement of lease liabilities.

+ References

No definition available.

+ Details

Name:	cht_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLeaseLiabilitiesExplanatory
Namespace Prefix:	cht_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of additional information about leasing activities of a lessee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2020-01-01
-Paragraph 59
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_59&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfQuantitativeInformationAboutLeasesForLesseeAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of quantitative information about right-of-use assets. [Refer: Right-of-use assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2020-01-01
-Paragraph 53
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration