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Investments Accounted for Using Equity Method (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure Of Significant Investments In Associates And Joint Ventures [Abstract] |
Summary of Investments Accounted for Using Equity Method |
|  | December 31 |
|  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Investments in associates |  | $ | 2,383 |  |  | $ | 2,326 |
Investments in joint ventures |  |  | 3 |  |  |  | — |
|  | $ | 2,386 |  |  | $ | 2,326 |
Investments in Associates | Investments in associates were as follows:
|  | Carrying Amount |
|  | December 31 |
|  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Listed |  |  |  |  |  |  |  |
Senao Networks, Inc. (“SNI”) |  | $ | 680 |  |  | $ | 704 |
Non-listed |  |  |  |  |  |  |  |
ST-2 Satellite Ventures Pte. Ltd. (“STS”) |  |  | 467 |  |  |  | 472 |
International Integrated System, Inc. (“IISI”) |  |  | 307 |  |  |  | 292 |
Viettel-CHT Co., Ltd. (“Viettel-CHT”) |  |  | 275 |  |  |  | 256 |
Skysoft Co., Ltd. (“SKYSOFT”) |  |  | 145 |  |  |  | 140 |
Taiwan International Standard Electronics Co., Ltd. (“TISE”) |  |  | 142 |  |  |  | 132 |
KingwayTek Technology Co., Ltd. (“KWT”) |  |  | 84 |  |  |  | 90 |
So-net Entertainment Taiwan Limited (“So-net”) |  |  | 111 |  |  |  | 104 |
Taiwan International Ports Logistics Corporation (“TIPL”) |  |  | 57 |  |  |  | 50 |
Click Force Co., Ltd. (“CF”) |  |  | 37 |  |  |  | 38 |
Dian Zuan Integrating Marketing Co., Ltd. (“DZIM”) |  |  | 22 |  |  |  | 12 |
HopeTech Technologies Limited (“HopeTech”) |  |  | 24 |  |  |  | 23 |
Alliance Digital Tech Co., Ltd. (“ADT”) |  |  | 32 |  |  |  | 13 |
MeWorks LIMITED (HK) (“MeWorks”) |  |  | — |  |  |  | — |
|  | $ | 2,383 |  |  | $ | 2,326 |
The percentages of ownership and voting rights in associates held by the Company as of balance sheet dates were as follows:
|  | % of Ownership and Voting Rights |
|  | December 31 |
|  | 2016 |  |  | 2017 |
Senao Networks, Inc. (“SNI”) |  |  | 34 |  |  |  | 34 |
ST-2 Satellite Ventures Pte., Ltd. (“STS”) |  |  | 38 |  |  |  | 38 |
International Integrated System, Inc. (“IISI”) |  |  | 32 |  |  |  | 32 |
Viettel-CHT Co., Ltd. (“Viettel-CHT”) |  |  | 30 |  |  |  | 30 |
Skysoft Co., Ltd. (“SKYSOFT”) |  |  | 30 |  |  |  | 30 |
Taiwan International Standard Electronics Co., Ltd. (“TISE”) |  |  | 40 |  |  |  | 40 |
KingwayTek Technology Co., Ltd. (“KWT”) |  |  | 26 |  |  |  | 26 |
So-net Entertainment Taiwan Limited (“So-net”) |  |  | 30 |  |  |  | 30 |
Taiwan International Ports Logistics Corporation (“TIPL”) |  |  | 27 |  |  |  | 27 |
Click Force Co., Ltd. (“CF”) |  |  | 49 |  |  |  | 49 |
Dian Zuan Integrating Marketing Co., Ltd. (“DZIM”) |  |  | 26 |  |  |  | 22 |
HopeTech Technologies Limited (“HopeTech”) |  |  | 45 |  |  |  | 45 |
Alliance Digital Tech Co., Ltd. (“ADT”) |  |  | 14 |  |  |  | 14 |
MeWorks LIMITED (HK) (“MeWorks”) |  |  | 20 |  |  |  | 20 |
Summarized financial information of associates that are not individually material was as follows:
|  | Year Ended December 31 |
|  | 2015 |  |  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  | (In Millions) |  |  |  |  |
The Company’s share of profit |  | $ | 926 |  |  | $ | 557 |  |  | $ | 420 |
The Company’s share of other comprehensive loss |  |  | (19 | ) |  |  | (47 | ) |  |  | (4 | )
The Company’s share of total comprehensive income |  | $ | 907 |  |  | $ | 510 |  |  | $ | 416 |
The Level 1 fair values based on the closing market prices of SNI as of the balance sheet dates were as follows:
|  | December 31 |
|  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
SNI |  | $ | 2,537 |  |  | $ | 2,130 |
Investments in Joint Ventures | Investments in joint ventures were as follows:
|  |  |  |  | % of Ownership and |
|  | Carrying Amount |  |  | Voting Rights |
|  | December 31 |  |  | December 31 |
|  | 2016 |  |  | 2017 |  |  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |  |  |  |  |  |  |  |  |
|  | (In Millions) |  |  |  |  |  |  |  |  |
Non-listed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chunghwa Benefit One Co., Ltd. (“CBO”) |  | $ | 3 |  |  | $ | — |  |  |  | 50 |  |  |  | — |
Huada Digital Corporation (“HDD”) |  |  | — |  |  |  | — |  |  |  | 50 |  |  |  | — |
|  | $ | 3 |  |  | $ | — |  |  |  |  |  |  |  |  |
Summarized financial information of joint ventures that were not material to the Company was as follows:
|  | Year Ended December 31 |
|  | 2015 |  |  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  |  |  |  |  | (In Millions) |  |  |  |  |
The Company’s share of loss |  | $ | (29 | ) |  | $ | (42 | ) |  | $ | (1 | )
The Company’s share of other comprehensive income |  |  | — |  |  |  | — |  |  |  | — |
The Company’s share of total comprehensive loss |  | $ | (29 | ) |  | $ | (42 | ) |  | $ | (1 | )

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