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Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2020
Disclosure Of Intangible Assets [Abstract]  
Summary of Intangible Assets

 

 

 

December 31

 

 

 

2019

 

 

2020

 

 

 

NT$

 

 

NT$

 

 

 

(In Millions)

 

Carrying amount

 

 

 

 

 

 

 

 

Mobile Broadband Concession

 

$

45,672

 

 

$

89,019

 

Computer software

 

 

931

 

 

 

788

 

Goodwill

 

 

200

 

 

 

246

 

Others

 

 

244

 

 

 

232

 

 

 

$

47,047

 

 

$

90,285

 

 

 

 

Mobile Broadband Concession

 

 

Computer Software

 

 

Goodwill

 

 

Others

 

 

Total

 

 

 

NT$

 

 

NT$

 

 

NT$

 

 

NT$

 

 

NT$

 

 

 

(In Millions)

 

Cost

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2018

 

$

70,144

 

 

$

3,312

 

 

$

236

 

 

$

418

 

 

$

74,110

 

Additions-acquired separately

 

 

—

 

 

 

485

 

 

 

—

 

 

 

13

 

 

 

498

 

Disposal

 

 

—

 

 

 

(371

)

 

 

—

 

 

 

(58

)

 

 

(429

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Balance on December 31, 2018

 

$

70,144

 

 

$

3,426

 

 

$

236

 

 

$

373

 

 

$

74,179

 

Accumulated amortization and impairment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2018

 

$

(16,675

)

 

$

(2,432

)

 

$

(27

)

 

$

(93

)

 

$

(19,227

)

Amortization expenses

 

 

(3,957

)

 

 

(406

)

 

 

—

 

 

 

(23

)

 

 

(4,386

)

Disposal

 

 

—

 

 

 

371

 

 

 

—

 

 

 

58

 

 

 

429

 

Impairment losses

 

 

—

 

 

 

—

 

 

 

—

 

 

 

(51

)

 

 

(51

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Balance on December 31, 2018

 

$

(20,632

)

 

$

(2,467

)

 

$

(27

)

 

$

(109

)

 

$

(23,235

)

Balance on December 31, 2018, net

 

$

49,512

 

 

$

959

 

 

$

209

 

 

$

264

 

 

$

50,944

 

Cost

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2019

 

$

70,144

 

 

$

3,426

 

 

$

236

 

 

$

373

 

 

$

74,179

 

Additions-acquired separately

 

 

—

 

 

 

358

 

 

 

—

 

 

 

5

 

 

 

363

 

Disposal

 

 

(10,179

)

 

 

(356

)

 

 

—

 

 

 

—

 

 

 

(10,535

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Others

 

 

—

 

 

 

2

 

 

 

—

 

 

 

—

 

 

 

2

 

Balance on December 31, 2019

 

$

59,965

 

 

$

3,430

 

 

$

236

 

 

$

378

 

 

$

64,009

 

Accumulated amortization and impairment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2019

 

$

(20,632

)

 

$

(2,467

)

 

$

(27

)

 

$

(109

)

 

$

(23,235

)

Amortization expenses

 

 

(3,840

)

 

 

(388

)

 

 

—

 

 

 

(25

)

 

 

(4,253

)

Disposal

 

 

10,179

 

 

 

356

 

 

 

—

 

 

 

—

 

 

 

10,535

 

Impairment losses

 

 

—

 

 

 

—

 

 

 

(9

)

 

 

—

 

 

 

(9

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Balance on December 31, 2019

 

$

(14,293

)

 

$

(2,499

)

 

$

(36

)

 

$

(134

)

 

$

(16,962

)

Balance on December 31, 2019, net

 

$

45,672

 

 

$

931

 

 

$

200

 

 

$

244

 

 

$

47,047

 

Cost

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2020

 

$

59,965

 

 

$

3,430

 

 

$

236

 

 

$

378

 

 

$

64,009

 

Additions-acquired separately

 

 

48,373

 

 

 

226

 

 

 

—

 

 

 

6

 

 

 

48,605

 

Disposal

 

 

—

 

 

 

(338

)

 

 

—

 

 

 

(3

)

 

 

(341

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Acquired by business combinations (Note 14)

 

 

—

 

 

 

1

 

 

 

55

 

 

 

11

 

 

 

67

 

Others

 

 

—

 

 

 

1

 

 

 

—

 

 

 

—

 

 

 

1

 

Balance on December 31, 2020

 

$

108,338

 

 

$

3,320

 

 

$

291

 

 

$

392

 

 

$

112,341

 

Accumulated amortization and impairment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance on January 1, 2020

 

$

(14,293

)

 

$

(2,499

)

 

$

(36

)

 

$

(134

)

 

$

(16,962

)

Amortization expenses

 

 

(5,026

)

 

 

(371

)

 

 

—

 

 

 

(27

)

 

 

(5,424

)

Disposal

 

 

—

 

 

 

338

 

 

 

—

 

 

 

1

 

 

 

339

 

Impairment losses

 

 

—

 

 

 

—

 

 

 

(9

)

 

 

—

 

 

 

(9

)

Effect of foreign exchange difference

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Acquired by business combinations (Note 14)

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Balance on December 31, 2020

 

$

(19,319

)

 

$

(2,532

)

 

$

(45

)

 

$

(160

)

 

$

(22,056

)

Balance on December 31, 2020, net

 

$

89,019

 

 

$

788

 

 

$

246

 

 

$

232

 

 

$

90,285