Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure of operating segments [abstract]

Analysis by Reportable Segment of Revenue and Operating Results of Continuing Operations

Analysis by reportable segment of revenues and operating results of continuing operations are as follows:

	Consumer Business		Enterprise Business		International Business		Others		Total
	NT$		NT$		NT$		NT$		NT$
	(In Millions)
Year ended December 31, 2020
Revenues
From external customers	$	126,064	$	70,229	$	6,094	$	5,222	$	207,609
Intersegment revenues		2,616		1,351		950		261		5,178
Segment revenues	$	128,680	$	71,580	$	7,044	$	5,483		212,787
Intersegment elimination										(5,178	)
Consolidated revenues									$	207,609
Segment income before income tax	$	25,928	$	12,263	$	908	$	3,727	$	42,826
Year ended December 31, 2021
Revenues
From external customers	$	129,912	$	69,258	$	6,122	$	5,186	$	210,478
Intersegment revenues		2,857		1,693		961		340		5,851
Segment revenues	$	132,769	$	70,951	$	7,083	$	5,526		216,329
Intersegment elimination										(5,851	)
Consolidated revenues									$	210,478
Segment income before income tax	$	27,528	$	15,094	$	1,246	$	2,199	$	46,067
Year ended December 31, 2022
Revenues
From external customers	$	132,063	$	72,152	$	7,189	$	5,335	$	216,739
Intersegment revenues		2,166		952		864		348		4,330
Segment revenues	$	134,229	$	73,104	$	8,053	$	5,683		221,069
Intersegment elimination										(4,330	)
Consolidated revenues									$	216,739
Segment income before income tax	$	28,505	$	15,607	$	1,694	$	1,398	$	47,204

Other Segment Information

Other information reviewed by the chief operating decision maker or regularly provided to the chief operating decision maker was as follows:

For the year ended December 31, 2020

	Consumer Business			Enterprise Business			International Business			Others		Total
	NT$			NT$			NT$			NT$		NT$
	(In Millions)
Share of profits of associates and    joint ventures accounted for using    equity method	$	(117	)	$	22		$	199		$	140	$	244
Interest income	$	8		$	19		$	22		$	67	$	116
Interest expenses	$	125		$	61		$	5		$	15	$	206
Depreciation and amortization	$	26,618		$	8,960		$	894		$	666	$	37,138
Gain (loss) on disposal of property,    plant and equipment	$	(15	)	$	(8	)	$	(1	)	$	1,452	$	1,428
Gain on disposal of investment    properties	$	—		$	—		$	—		$	151	$	151
Reversal of impairment loss on    investment properties	$	—		$	—		$	—		$	27	$	27
Impairment loss on intangible assets	$	9		$	—		$	—		$	—	$	9

For the year ended December 31, 2021

	Consumer Business			Enterprise Business		International Business		Others		Total
	NT$			NT$		NT$		NT$		NT$
	(In Millions)
Share of profits of associates and    joint ventures accounted for using    equity method	$	(48	)	$	11	$	272	$	186	$	421
Interest income	$	7		$	16	$	5	$	67	$	95
Interest expenses	$	131		$	66	$	7	$	14	$	218
Depreciation and amortization	$	27,953		$	9,700	$	865	$	698	$	39,216
Impairment loss on right-of-use assets	$	5		$	382	$	33	$	—	$	420
Reversal of impairment loss on    investment properties	$	—		$	—	$	—	$	83	$	83
Impairment loss on intangible assets	$	29		$	—	$	—	$	—	$	29

For the year ended December 31, 2022

	Consumer Business			Enterprise Business		International Business		Others		Total
	NT$			NT$		NT$		NT$		NT$
	(In Millions)
Share of profits of associates and    joint ventures accounted for using    equity method	$	(43	)	$	23	$	315	$	147	$	442
Interest income	$	11		$	28	$	8	$	202	$	249
Interest expenses	$	151		$	83	$	7	$	22	$	263
Depreciation and amortization	$	28,703		$	9,714	$	1,114	$	739	$	40,270
Reversal of impairment loss on    investment properties	$	—		$	—	$	—	$	107	$	107
Impairment loss on intangible assets	$	9		$	—	$	—	$	—	$	9

Main Products and Service Revenues

The following is an analysis of the Company’s revenue from its major products and services.

	Year Ended December 31
	2020		2021		2022
	NT$		NT$		NT$
	(In Millions)
Consumer Business
Mobile services	$	48,183	$	49,043	$	51,821
Fixed-line services		42,171		42,277		42,766
Sales		33,167		36,145		35,172
Others		2,543		2,447		2,304
		126,064		129,912		132,063
Enterprise Business
Fixed-line services		34,529		34,712		34,537
ICT business		24,073		22,299		24,248
Mobile services		8,190		8,446		8,942
Others		3,437		3,801		4,425
		70,229		69,258		72,152
International Business
Fixed-line services		4,692		5,008		5,063
ICT business		772		679		1,506
Others		630		435		620
		6,094		6,122		7,189
Others
Sales		4,313		4,335		4,553
Others		909		851		782
		5,222		5,186		5,335
	$	207,609	$	210,478	$	216,739

Geographic Information

The geographic information for revenues was as follows:

	Year Ended December 31
	2020		2021		2022
	NT$		NT$		NT$
	(In Millions)
Taiwan, ROC	$	200,881	$	204,473	$	209,727
Overseas		6,728		6,005		7,012
	$	207,609	$	210,478	$	216,739