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Investments Accounted for Using Equity Method (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Of Significant Investments In Associates And Joint Ventures [Abstract]

Summary of Investments Accounted for Using Equity Method

		December 31
		2020				2021
		NT$				NT$
		(In Millions)
Investments in associates		$	6,685			$	7,127
Investment in joint venture			10				10
		$	6,695			$	7,137

Investments in Associates

a. Investments in associates

		Carrying Amount
		December 31
		2020				2021
		NT$				NT$
		(In Millions)
Material associate
Next Commercial Bank Co., Ltd. (“NCB”)		$	3,777			$	3,592
Associates that are not individually material
Listed
Senao Networks, Inc. (“SNI”)			841				926
KingwayTek Technology Co., Ltd. (“KWT”)			213				222
Non-listed
ST-2 Satellite Ventures Pte., Ltd. (“STS”)			488				518
Viettel-CHT Co., Ltd. (“Viettel-CHT”)			363				447
Taiwan International Standard Electronics Co., Ltd. (“TISE”)			324				341
WiAdvance Technology Corporation (“WATC”)			—				254
Chunghwa PChome Fund I Co., Ltd. (“CPFI”)			193				221
So-net Entertainment Taiwan Limited (“So-net”)			225				217
KKBOX Taiwan Co., Ltd. (“KKBOXTW”)			163				157
Taiwan International Ports Logistics Corporation (“TIPL”)			56				70
CHT Infinity Singapore Pte. Ltd. (“CISG”)			—				55
Imedtac Co., Ltd. (“IME”)			—				45
Click Force Co., Ltd. (“CF”)			33				37
AgriTalk Technology Inc. (“ATT”)			—				18
Cornerstone Ventures Co., Ltd. (“CVC”)			6				7
Alliance Digital Tech Co., Ltd. (“ADT”)			3				—
UUPON Inc. (“UUPON”)			—				—
International Integrated Systems, Inc. (“IISI”)			—				—
MeWorks Limited (HK) (“MeWorks”)			—				—
		$	6,685			$	7,127

The percentages of ownership interests and voting rights in associates held by the Company as of balance sheet dates were as follows:

		% of Ownership Interests and Voting Rights
		December 31
		2020				2021
Material associate
Next Commercial Bank Co., Ltd. (“NCB”)			42				42
Associates that are not individually material
Senao Networks, Inc. (“SNI”)			34				34
KingwayTek Technology Co., Ltd. (“KWT”)			23				23
ST-2 Satellite Ventures Pte., Ltd. (“STS”)			38				38
Viettel-CHT Co., Ltd. (“Viettel-CHT”)			30				30
Taiwan International Standard Electronics Co., Ltd. (“TISE”)			40				40
WiAdvance Technology Corporation (“WATC”)			—				20
Chunghwa PChome Fund I Co., Ltd. (“CPFI”)			50				50
So-net Entertainment Taiwan Limited (“So-net”)			30				30
KKBOX Taiwan Co., Ltd. (“KKBOXTW”)			30				30
Taiwan International Ports Logistics Corporation (“TIPL”)			27				27
CHT Infinity Singapore Pte. Ltd. (“CISG”)			—				40
Imedtac Co., Ltd. (“IME”)			—				7
Click Force Co., Ltd. (“CF”)			49				49
AgriTalk Technology Inc. (“ATT”)			—				17
Cornerstone Ventures Co., Ltd. (“CVC”)			49				49
Alliance Digital Tech Co., Ltd. (“ADT”)			14				—
UUPON Inc. (“UUPON”)			—				—
International Integrated Systems, Inc. (“IISI”)			—				—
MeWorks Limited (HK) (“MeWorks”)			—				—

Summarized financial information of NCB was set out below:

		December 31
		2020				2021
		NT$				NT$
		(In Millions)
Assets		$	9,907			$	9,197
Lliabilities			(789	)			(525	)
Equity		$	9,118			$	8,672
The percentage of ownership interest held by the Company			41.9	%			41.9	%
Equity attributable to the Company		$	3,820			$	3,634
Unrealized gain or loss from downstream transactions			(43	)			(42	)
The carrying amount of investment		$	3,777			$	3,592

		Period from the Beginning Date of Preparation to December 31, 2019				Year Ended December 31
						2020				2021
		NT$				NT$				NT$
		(In Millions)
Revenues		$	—			$	—			$	—
Net loss for the period		$	(276	)		$	(605	)		$	(446	)
Other comprehensive income			—				—				—
Total comprehensive loss for the period		$	(276	)		$	(605	)		$	(446	)

Except for NCB, no associate is considered individually material to the Company.  Summarized financial information of associates that are not individually material to the Company was as follows:

		Year Ended December 31
		2019				2020				2021
		NT$				NT$				NT$
						(In Millions)
The Company’s share of profits		$	575			$	540			$	607
The Company’s share of other comprehensive loss			(3	)			(8	)			(6	)
The Company’s share of total comprehensive income		$	572			$	532			$	601

The Level 1 fair values of associates based on the closing market prices as of the balance sheet dates were as follows:

		December 31
		2020				2021
		NT$				NT$
		(In Millions)
SNI		$	1,708			$	1,699
KWT		$	676			$	910

Investments in Joint Ventures

b. Investment in joint venture

		Carrying Amount								% of Ownership Interests and Voting Rights
		December 31								December 31
Name of Joint Venture		2020				2021				2020				2021
Non-listed
Chunghwa SEA Holdings (“CHT SEA”)		$	10			$	10				51				51

The joint venture is not considered individually material to the Company.  Summarized financial information of CHT SEA was set out below:

		Year Ended December 31
		2020				2021
		NT$				NT$
		(In Millions)
The Company’s share of loss		$	—			$	—
The Company’s share of other comprehensive    income			—				—
The Company’s share of total comprehensive loss		$	—			$	—

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