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Lease Arrangements (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure of quantitative information about leases for lessee [abstract]

Summary of Right-of-use Assets

a.Right-of-use assets

		December 31
		2022				2023
		NT$				NT$
		(In Millions)
Land and buildings
Handsets base stations		$	7,175			$	7,577
Others			1,727				1,754
Equipment			2,201				1,907
		$	11,103			$	11,238

		Year Ended December 31
		2021				2022				2023
		NT$				NT$				NT$
		(In Millions)
Additions to right-of-use assets		$	4,669			$	4,369			$	4,415
Depreciation charge for right-of-use assets
Land and buildings
Handsets base stations		$	2,789			$	2,863			$	2,939
Others			786				770				787
Equipment			410				349				346
		$	3,985			$	3,982			$	4,072

Summary of Lease Liabilities

b.Lease liabilities

		December 31
		2022				2023
		NT$				NT$
		(In Millions)
Lease liabilities
Current		$	3,339			$	3,505
Noncurrent			7,334				7,470
		$	10,673			$	10,975

Summary of Range of Discount Rate for Lease Liabilities

		December 31
		2022		2023
Land and buildings
Handsets base stations		0.37%-1.71%		0.37%-1.84%
Others		0.37%-9.00%		0.37%-9.00%
Equipment		0.37%-2.99%		0.37%-3.50%

Summary of Total Cash Outflow for Leases

d.Other lease information

		Year Ended December 31
		2021				2022				2023
		NT$				NT$				NT$
		(In Millions)
Expenses relating to low-value asset leases		$	8			$	9			$	9
Expenses relating to variable lease payments not included in      the measurement of lease liabilities		$	7			$	8			$	8
Total cash outflow for leases		$	3,813			$	3,869			$	4,006

X

- Definition

Disclosure of quantitative information about lease liabilities.

+ References

No definition available.

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- Definition

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

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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 2023-01-01
-Paragraph 59
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_59&doctype=Standard
-URIDate 2023-03-23

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- 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 2023-01-01
-Paragraph 53
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53&doctype=Standard
-URIDate 2023-03-23

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