Disclosure Of Property Plant And Equipment [Line Items]

Summary of Property, Plant and Equipment


	Land			Land Improvements			Buildings			Computer Equipment			Telecommuni- cations Equipment			Transportation Equipment			Miscellaneous Equipment			Construction in Progress and Equipment to be Accepted			Total
	NT$			NT$			NT$			NT$			NT$			NT$			NT$			NT$			NT$
	(In Millions)
Accumulated depreciation and impairment
Balance on January 1, 2021	$	—		$	(1,399	)	$	(29,247	)	$	(10,639	)	$	(593,663	)	$	(3,718	)	$	(7,926	)	$	—		$	(646,592	)
Depreciation expenses		—			(43	)		(1,401	)		(716	)		(24,802	)		(65	)		(701	)		—			(27,728	)
Disposal		—			1			29			1,724			27,900			84			466			—			30,204
Effect of foreign exchange differences		—			—			—			—			31			—			1			—			32
Others		—			(1	)		41			(1	)		1			—			(45	)		—			(5	)
Balance on December 31, 2021	$	—		$	(1,442	)	$	(30,578	)	$	(9,632	)	$	(590,533	)	$	(3,699	)	$	(8,205	)	$	—		$	(644,089	)
Balance on December 31, 2021, net	$	102,645		$	220		$	40,780		$	1,585		$	123,001		$	228		$	2,604		$	10,786		$	281,849
Cost
Balance on January 1, 2022	$	102,645		$	1,662		$	71,358		$	11,217		$	713,534		$	3,927		$	10,809		$	10,786		$	925,938
Additions		460			—			133			102			149			1			253			30,167			31,265
Disposal		(4	)		(6	)		(7	)		(808	)		(18,395	)		(104	)		(392	)		—			(19,716	)
Effect of foreign exchange differences		—			—			—			—			209			—			4			19			232
Others		563			19			1,046			578			24,571			147			794			(26,545	)		1,173
Balance on December 31, 2022	$	103,664		$	1,675		$	72,530		$	11,089		$	720,068		$	3,971		$	11,468		$	14,427		$	938,892
Accumulated depreciation and impairment
Balance on January 1, 2022	$	—		$	(1,442	)	$	(30,578	)	$	(9,632	)	$	(590,533	)	$	(3,699	)	$	(8,205	)	$	—		$	(644,089	)
Depreciation expenses		—			(39	)		(1,452	)		(725	)		(25,654	)		(77	)		(754	)		—			(28,701	)
Disposal		—			7			7			807			18,382			104			388			—			19,695
Effect of foreign exchange differences		—			—			—			—			(110	)		—			(2	)		—			(112	)
Others		—			—			(240	)		(4	)		(42	)		(1	)		(69	)		—			(356	)
Balance on December 31, 2022	$	—		$	(1,474	)	$	(32,263	)	$	(9,554	)	$	(597,957	)	$	(3,673	)	$	(8,642	)	$	—		$	(653,563	)
Balance on December 31, 2022, net	$	103,664		$	201		$	40,267		$	1,535		$	122,111		$	298		$	2,826		$	14,427		$	285,329

Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment

The future aggregate lease collection under operating lease for investment properties is as follows:


	December 31
	2021		2022
	NT$		NT$
	(In Millions)
Year 1	$	107	$	118
Year 2		82		99
Year 3		62		90
Year 4		55		70
Year 5		39		44
Onwards		78		149
	$	423	$	570

Disclosure Of Property Plant And Equipment [Line Items]

Disclosure Of Property Plant And Equipment Estimated Useful Life Explanatory

The above items of property, plant and equipment subject to operating leases are depreciated on a straight-line basis over their estimated useful lives as follows:


Buildings
Main buildings		35-60 years
Other building facilities		3-15 years

Summary of Property, Plant and Equipment

a.

Assets used by the Company


	Land			Land Improvements			Buildings			Computer Equipment			Telecommuni- cations Equipment			Transportation Equipment			Miscellaneous Equipment			Construction in Progress and Equipment to be Accepted			Total
	NT$			NT$			NT$			NT$			NT$			NT$			NT$			NT$			NT$
	(In Millions)
Cost
Balance on January 1, 2020	$	99,103		$	1,618		$	71,001		$	13,005		$	706,032		$	3,912		$	10,090		$	13,752		$	918,513
Additions		67			—			18			55			118			1			150			24,786			25,195
Disposal		(270	)		(19	)		(49	)		(1,245	)		(20,619	)		(45	)		(520	)		(29	)		(22,796	)
Effect of foreign exchange differences		—			—			—			—			(91	)		—			—			(7	)		(98	)
Acquired by business combinations (Note 14)		—			—			—			70			—			—			72			—			142
Others		3,091			31			(81	)		521			25,336			26			508			(29,973	)		(541	)
Balance on December 31, 2020	$	101,991		$	1,630		$	70,889		$	12,406		$	710,776		$	3,894		$	10,300		$	8,529		$	920,415
Accumulated depreciation and impairment
Balance on January 1, 2020	$	—		$	(1,375	)	$	(27,977	)	$	(11,068	)	$	(590,338	)	$	(3,694	)	$	(7,662	)	$	(29	)	$	(642,143	)
Depreciation expenses		—			(43	)		(1,366	)		(770	)		(23,994	)		(68	)		(666	)		—			(26,907	)
Disposal		—			19			49			1,243			20,600			45			504			29			22,489
Effect of foreign exchange differences		—			—			—			—			41			—			—			—			41
Acquired by business combinations (Note 14)		—			—			—			(40	)		—			—			(54	)		—			(94	)
Others		—			—			47			(4	)		28			(1	)		(48	)		—			22
Balance on December 31, 2020	$	—		$	(1,399	)	$	(29,247	)	$	(10,639	)	$	(593,663	)	$	(3,718	)	$	(7,926	)	$	—		$	(646,592	)
Balance on December 31, 2020, net	$	101,991		$	231		$	41,642		$	1,767		$	117,113		$	176		$	2,374		$	8,529		$	273,823
Cost
Balance on January 1, 2021	$	101,991		$	1,630		$	70,889		$	12,406		$	710,776		$	3,894		$	10,300		$	8,529		$	920,415
Additions		—			—			37			72			84			—			198			35,222			35,613
Disposal		—			(1	)		(29	)		(1,734	)		(27,916	)		(84	)		(470	)		—			(30,234	)
Effect of foreign exchange differences		—			—			—			—			(64	)		—			(2	)		(6	)		(72	)
Others		654			33			461			473			30,654			117			783			(32,959	)		216
Balance on December 31, 2021	$	102,645		$	1,662		$	71,358		$	11,217		$	713,534		$	3,927		$	10,809		$	10,786		$	925,938