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Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Summary of Intangible Assets

		Goodwill				Technology License Fees				Software and System Design Costs				Patent and Others				Total
		NT$				NT$				NT$				NT$				NT$
		(In Millions)				(In Millions)				(In Millions)				(In Millions)				(In Millions)
Cost
Balance at January 1, 2020		$	5,693.4			$	15,855.0			$	33,024.0			$	8,302.9			$	62,875.3
Additions			—				6,035.2				1,292.0				2,863.1				10,190.3
Disposals or retirements			—				—				(48.8	)			—				(48.8	)
Effect of exchange rate changes			(75.9	)			(3.4	)			(17.3	)			(1.3	)			(97.9	)
Balance at June 30, 2020		$	5,617.5			$	21,886.8			$	34,249.9			$	11,164.7			$	72,918.9
Accumulated amortization and impairment
Balance at January 1, 2020		$	—			$	9,823.8			$	26,502.1			$	5,896.4			$	42,222.3
Additions			—				1,021.9				1,856.2				486.3				3,364.4
Disposals or retirements			—				—				(48.8	)			—				(48.8	)
Effect of exchange rate changes			—				(3.3	)			(10.3	)			(1.0	)			(14.6	)
Balance at June 30, 2020		$	—			$	10,842.4			$	28,299.2			$	6,381.7			$	45,523.3
Carrying amounts at January 1, 2020		$	5,693.4			$	6,031.2			$	6,521.9			$	2,406.5			$	20,653.0
Carrying amounts at June 30, 2020		$	5,617.5			$	11,044.4			$	5,950.7			$	4,783.0			$	27,395.6
Cost
Balance at January 1, 2021		$	5,436.6			$	22,161.7			$	36,239.0			$	11,277.6			$	75,114.9
Additions			—				1,005.0				3,708.2				90.7				4,803.9
Disposals or retirements			—				—				(13.8	)			—				(13.8	)
Effect of exchange rate changes			(28.2	)			1.1				2.1				0.2				(24.8	)
Balance at June 30, 2021		$	5,408.4			$	23,167.8			$	39,935.5			$	11,368.5			$	79,880.2
Accumulated amortization and impairment
Balance at January 1, 2021		$	—			$	12,226.2			$	30,111.7			$	7,008.9			$	49,346.8
Additions			—				1,334.1				2,068.5				605.8				4,008.4
Disposals or retirements			—				—				(12.6	)			—				(12.6	)
Effect of exchange rate changes			—				1.1				1.3				0.1				2.5
Balance at June 30, 2021		$	—			$	13,561.4			$	32,168.9			$	7,614.8			$	53,345.1
Carrying amounts at January 1, 2021		$	5,436.6			$	9,935.5			$	6,127.3			$	4,268.7			$	25,768.1
Carrying amounts at June 30, 2021		$	5,408.4			$	9,606.4			$	7,766.6			$	3,753.7			$	26,535.1

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- Definition

The disclosure of the reconciliation of changes in intangible assets and goodwill. [Refer: Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URIDate 2020-01-01

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Text block [abstract].

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