Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of detailed information about property, plant and equipment [line items]

Summary of Property, Plant and Equipment


	Land and Land Improvements			Buildings			Machinery and Equipment			Office Equipment			Equipment under Installation and Construction in Progress			Total
	NT$			NT$			NT$			NT$			NT$			NT$
	(In Millions)			(In Millions)			(In Millions)			(In Millions)			(In Millions)			(In Millions)
Cost

Balance at January 1, 201 7	$	4,049.3		$	304,404.5		$	2,042,867.7		$	34,729.6		$	387,199.7		$	2,773,250.8
Additions (Deductions)		—			75,594.7			458,605.8			8,195.9			(219,902.5	)		322,493.9
Disposals or retirements		—			(37.0	)		(9,553.0	)		(377.8	)		—			(9,967.8	)
Reclassification		—			—			8.8			1.5			—			10.3
Effect of disposal of subsidiary		—			—			(51.2	)		(14.8	)		(0.5	)		(66.5	)
Effect of exchange rate changes		(66.1	)		(827.6	)		(4,125.8	)		(142.9	)		56.8			(5,105.6	)


Balance at December 31, 2017	$	3,983.2		$	379,134.6		$	2,487,752.3		$	42,391.5		$	167,353.5		$	3,080,615.1


Accumulated depreciation and impairment

Balance at January 1, 2017	$	524.8		$	174,349.1		$	1,577,377.5		$	23,221.7		$	—		$	1,775,473.1
Additions		27.8			20,844.6			229,985.6			4,938.0			—			255,796.0
Disposals or retirements		—			(28.8	)		(8,114.3	)		(377.5	)		—			(8,520.6	)
Reclassification		—			—			8.2			1.5			—			9.7
Effect of disposal of subsidiary		—			—			(42.8	)		(13.9	)		—			(56.7	)
Effect of exchange rate changes		(42.1	)		(718.4	)		(3,765.3	)		(102.9	)		—			(4,628.7	)


Balance at December 31, 2017	$	510.5		$	194,446.5		$	1,795,448.9		$	27,666.9		$	—		$	2,018,072.8


Carrying amounts at December 31, 2017	$	3,472.7		$	184,688.1		$	692,303.4		$	14,724.6		$	167,353.5		$	1,062,542.3


Cost

Balance at January 1, 2018	$	3,983.2		$	379,134.6		$	2,487,752.3		$	42,391.5		$	167,353.5		$	3,080,615.1
Additions		—			40,396.4			247,042.3			6,773.4			5,812.3			300,024.4
Disposals or retirements		—			(410.9	)		(5,972.5	)		(790.8	)		—			(7,174.2	)
Effect of exchange rate changes		28.2			(405.8	)		(61.9	)		8.1			(254.8	)		(686.2	)

Balance at December 31, 2018	$	4,011.4		$	418,714.3		$	2,728,760.2		$	48,382.2		$	172,911.0		$	3,372,779.1


Accumulated depreciation and impairment

Balance at January 1, 2018	$	510.5		$	194,446.5		$	1,795,448.9		$	27,666.9		$	—		$	2,018,072.8
Additions		20.9			24,293.4			258,195.3			5,615.3			—			288,124.9
Disposals or retirements		—			(399.0	)		(4,773.6	)		(790.0	)		—			(5,962.6	)
Impairment		—			—			423.5			—			—			423.5
Effect of exchange rate changes		19.2			33.2			(15.1	)		32.9			—			70.2


Balance at December 31, 2018	$	550.6		$	218,374.1		$	2,049,279.0		$	32,525.1		$	—		$	2,300,728.8


Carrying amounts at December 31, 2018	$	3,460.8		$	200,340.2		$	679,481.2		$	15,857.1		$	172,911.0		$	1,072,050.3

Buildings [member]

Disclosure of detailed information about property, plant and equipment [line items]

Summary of maturity analysis of operating lease payments receivable

The maturity analysis of operating lease payments receivable for the buildings is as follows:


	December 31, 2019
	NT$
	(In Millions)
Year 1	$	18.4
Year 2		17.0
Year 3		17.0


	$	52.4

Property, plant and equipment not subject to operating leases [member]

Disclosure of detailed information about property, plant and equipment [line items]

Summary of Property, Plant and Equipment


	Land and Land Improvements			Buildings			Machinery and Equipment			Office Equipment			Equipment under Installation and Construction in Progress			Total
	NT$			NT$			NT$			NT$			NT$			NT$
	(In Millions)			(In Millions)			(In Millions)			(In Millions)			(In Millions)			(In Millions)
Cost

Balance at January 1, 2019	$	4,011.4		$	418,151.7		$	2,728,760.2		$	48,382.2		$	172,911.0		$	3,372,216.5
Additions		—			21,448.5			179,798.4			7,415.0			355,621.1			564,283.0
Disposals or retirements		—			(159.0	)		(17,381.6	)		(1,043.3	)		—			(18,583.9	)
Transfers from right-of-use assets		—			—			619.8			—			—			619.8
Effect of disposal of subsidiary		—			—			—			(0.5	)		—			(0.5	)
Effect of exchange rate changes		(19.6	)		(1,366.2	)		(5,173.8	)		(142.0	)		(237.0	)		(6,938.6	)


Balance at December 31, 2019	$	3,991.8		$	438,075.0		$	2,886,623.0		$	54,611.4		$	528,295.1		$	3,911,596.3


Accumulated depreciation and impairment

Balance at January 1, 2019	$	550.6		$	217,899.2		$	2,049,279.0		$	32,525.1		$	—		$	2,300,253.9
Additions		1.6			26,026.6			246,724.2			6,012.5			—			278,764.9
Disposals or retirements		—			(144.4	)		(12,880.8	)		(1,042.1	)		—			(14,067.3	)
Transfers from right-of-use assets		—			—			20.7			—			—			20.7
Reversal of impairment		—			—			(301.4	)		—			—			(301.4	)
Effect of disposal of subsidiary		—			—			—			(0.5	)		—			(0.5	)
Effect of exchange rate changes		(13.5	)		(722.1	)		(4,575.7	)		(76.6	)		—			(5,387.9	)


Balance at December 31, 2019	$	538.7		$	243,059.3		$	2,278,266.0		$	37,418.4		$	—		$	2,559,282.4


Carrying amounts at December 31, 2019	$	3,453.1		$	195,015.7		$	608,357.0		$	17,193.0		$	528,295.1		$	1,352,313.9

Property, plant and equipment subject to operating leases [member]

Disclosure of detailed information about property, plant and equipment [line items]

Summary of Property, Plant and Equipment


	Buildings
	NT$
	(In Millions)
Cost

Balance at January 1, 2019	$	562.6


Balance at December 31, 2019	$	562.6


Accumulated depreciation

Balance at January 1, 2019	$	474.9
Additions		24.2


Balance at December 31, 2019	$	499.1


Carrying amounts at December 31, 2019	$	63.5

Property plant and equipment including subject and not subject to operating leases [member]

Disclosure of detailed information about property, plant and equipment [line items]

Summary of Property, Plant and Equipment


	December 31, 2019
	NT$
	(In Millions)
Assets used by the Company	$	1,352,313.9
Assets subject to operating leases		63.5


	$	1,352,377.4