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Investments Accounted for Using Equity Method (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure Of Significant Investments In Associates And Joint Ventures [Abstract] |
Summary of Investments Accounted for Using Equity Method |
|  | December 31 |
|  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Investments in associates |  | $ | 7,139 |  |  | $ | 6,685 |
Investment in joint venture |  |  | — |  |  |  | 10 |
|  | $ | 7,139 |  |  | $ | 6,695 |
Investments in Associates |
| a. | Investments in associates
|  | Carrying Amount |
|  | December 31 |
|  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Material associate |  |  |  |  |  |  |  |
Next Commercial Bank Co., Ltd. (“NCB”) (Note) |  | $ | 4,074 |  |  | $ | 3,777 |
Associates that are not individually material |  |  |  |  |  |  |  |
Listed |  |  |  |  |  |  |  |
Senao Networks, Inc. (“SNI”) |  |  | 803 |  |  |  | 841 |
KingwayTek Technology Co., Ltd. (“KWT”) |  |  | 217 |  |  |  | 213 |
Non-listed |  |  |  |  |  |  |  |
ST-2 Satellite Ventures Pte. Ltd. (“STS”) |  |  | 501 |  |  |  | 488 |
Viettel-CHT Co., Ltd. (“Viettel-CHT”) |  |  | 317 |  |  |  | 363 |
Taiwan International Standard Electronics Co., Ltd. (“TISE”) |  |  | 268 |  |  |  | 324 |
So-net Entertainment Taiwan Limited (“So-net”) |  |  | 186 |  |  |  | 225 |
Chunghwa PChome Fund I Co., Ltd. (“CPFI”) |  |  | 194 |  |  |  | 193 |
KKBOX Taiwan Co., Ltd. (“KKBOXTW”) |  |  | 151 |  |  |  | 163 |
Taiwan International Ports Logistics Corporation (“TIPL”) |  |  | 51 |  |  |  | 56 |
Click Force Co., Ltd. (“CF”) |  |  | 37 |  |  |  | 33 |
Cornerstone Ventures Co., Ltd. (“CVC”) |  |  | 5 |  |  |  | 6 |
Alliance Digital Tech Co., Ltd. (“ADT”) |  |  | 3 |  |  |  | 3 |
UUPON Inc. (“UUPON”) |  |  | (3 | ) |  |  | — |
International Integrated System, Inc. (“IISI”) |  |  | 335 |  |  |  | — |
MeWorks Limited (HK) (“MeWorks”) |  |  | — |  |  |  | — |
|  | $ | 7,139 |  |  | $ | 6,685 |
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 |
|  | 2019 |  |  | 2020 |
Material associate |  |  |  |  |  |  |  |
Next Commercial Bank Co., Ltd. (“NCB”) (Note) |  |  | 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 |
So-net Entertainment Taiwan Limited (“So-net”) |  |  | 30 |  |  |  | 30 |
Chunghwa PChome Fund I Co., Ltd. (“CPFI”) |  |  | 50 |  |  |  | 50 |
KKBOX Taiwan Co., Ltd. (“KKBOXTW”) |  |  | 30 |  |  |  | 30 |
Taiwan International Ports Logistics Corporation (“TIPL”) |  |  | 27 |  |  |  | 27 |
Click Force Co., Ltd. (“CF”) |  |  | 49 |  |  |  | 49 |
Cornerstone Ventures Co., Ltd. (“CVC”) |  |  | 49 |  |  |  | 49 |
Alliance Digital Tech Co., Ltd. (“ADT”) |  |  | 14 |  |  |  | 14 |
UUPON Inc. (“UUPON”) |  |  | 22 |  |  |  | — |
International Integrated System, Inc. (“IISI”) |  |  | 31 |  |  |  | — |
MeWorks Limited (HK) (“MeWorks”) |  |  | 20 |  |  |  | — |
Summarized financial information of NCB was set out below:
|  | December 31 |  |  | December 31 |
|  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Assets |  | $ | 10,452 |  |  | $ | 9,907 |
Lliabilities |  |  | (728 | ) |  |  | (789 | )
Equity |  | $ | 9,724 |  |  | $ | 9,118 |
The percentage of ownership interests held by the Company |  |  | 41.9 | % |  |  | 41.9 | %
Equity attributable to the Company |  | $ | 4,074 |  |  | $ | 3,820 |
Unrealized gain or loss from downstream transactions |  |  | — |  |  |  | (43 | )
The carrying amount of investment |  | $ | 4,074 |  |  | $ | 3,777 |
|  | Period from the Beginning Date of Preparation to December 31, 2019 |  |  | Year Ended December 31, 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Revenues |  | $ | — |  |  | $ | — |
Net loss for the period |  | $ | (276 | ) |  | $ | (605 | )
Other comprehensive income |  |  | — |  |  |  | — |
Total comprehensive loss for the period |  | $ | (276 | ) |  | $ | (605 | )
Summarized financial information of associates that are not individually material to the Company was as follows:
|  | Year Ended December 31 |
|  | 2018 |  |  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  | (In Millions) |  |  |  |  |
The Company’s share of profits |  | $ | 509 |  |  | $ | 575 |  |  | $ | 540 |
The Company’s share of other comprehensive income (loss) |  |  | 5 |  |  |  | (3 | ) |  |  | (8 | )
The Company’s share of total comprehensive income |  | $ | 514 |  |  | $ | 572 |  |  | $ | 532 |
The Level 1 fair values of associates based on the closing market prices as of the balance sheet dates were as follows:
|  | December 31 |
|  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
SNI |  | $ | 2,014 |  |  | $ | 1,708 |
KWT |  | $ | 873 |  |  | $ | 676 |
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 |  | 2019 |  |  | 2020 |  |  | 2019 |  |  | 2020 |
Non-listed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chunghwa SEA Holdings (“CHT SEA”) |  | $ | — |  |  | $ | 10 |  |  |  | — |  |  |  | 51 |

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