Document and Entity Information
Document and Entity Information | 12 Months Ended |
Dec. 31, 2021shares | |
Document Information [Line Items] | |
Document Type | 20-F |
Amendment Flag | false |
Document Period End Date | Dec. 31, 2021 |
Document Fiscal Year Focus | 2021 |
Document Fiscal Period Focus | FY |
Entity Registrant Name | Chunghwa Telecom Co., Ltd. |
Entity Central Index Key | 0001132924 |
Current Fiscal Year End Date | --12-31 |
Entity Well-known Seasoned Issuer | Yes |
Entity Voluntary Filers | No |
Entity Emerging Growth Company | false |
Entity Shell Company | false |
Entity Current Reporting Status | Yes |
Entity Interactive Data Current | Yes |
Entity Filer Category | Large Accelerated Filer |
ICFR Auditor Attestation Flag | true |
Entity Common Stock, Shares Outstanding | 7,757,446,545 |
Entity File Number | 001-31731 |
Entity Incorporation, State or Country Code | F5 |
Entity Address, Address Line One | 21-3 Hsinyi Road |
Entity Address, Address Line Two | Section 1 |
Entity Address, City or Town | Taipei |
Entity Address, Country | TW |
Entity Address, Postal Zip Code | 10048 |
Document Annual Report | true |
Document Transition Report | false |
Document Shell Company Report | false |
Document Accounting Standard | International Financial Reporting Standards |
Document Registration Statement | false |
Auditor Name | Deloitte & Touche |
Auditor Location | Taipei, Taiwan Republic of China |
Auditor Firm ID | 1060 |
Common Shares, Par Value NT$10 Per Share [Member] | |
Document Information [Line Items] | |
No Trading Symbol Flag | true |
Title of 12(b) Security | Common Shares, par value NT$10 per share |
Security Exchange Name | NYSE |
American Depositary Shares [Member] | |
Document Information [Line Items] | |
Title of 12(b) Security | American Depositary Shares, as evidenced by American Depositary Receipts, each representing 10 Common Shares |
Security Exchange Name | NYSE |
Trading Symbol | CHT |
Business Contact [Member] | |
Document Information [Line Items] | |
Entity Address, Address Line One | 21-3 Hsinyi Road |
Entity Address, Address Line Two | Section 1 |
Entity Address, City or Town | Taipei |
Entity Address, Country | TW |
Entity Address, Postal Zip Code | 10048 |
Contact Personnel Name | Cho-Fen (Angela) Tsai |
City Area Code | +886 2 |
Local Phone Number | 2344-5488 |
Contact Personnel Email Address | chtir@cht.com.tw |
Consolidated Balance Sheet
Consolidated Balance Sheet | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
CURRENT ASSETS | |||
Cash and cash equivalents | $ 39,779,000,000 | $ 1,434,000,000 | $ 30,420,000,000 |
Financial assets at fair value through profit or loss | 3,000,000 | 0 | 10,000,000 |
Hedging financial assets | 0 | 0 | 2,000,000 |
Contract assets | 5,554,000,000 | 200,000,000 | 5,331,000,000 |
Trade notes and accounts receivable, net | 23,947,000,000 | 863,000,000 | 22,622,000,000 |
Receivables from related parties | 41,000,000 | 1,000,000 | 230,000,000 |
Inventories | 11,327,000,000 | 408,000,000 | 12,409,000,000 |
Prepayments | 2,330,000,000 | 84,000,000 | 2,306,000,000 |
Other current monetary assets | 5,061,000,000 | 183,000,000 | 6,124,000,000 |
Other current assets | 2,979,000,000 | 108,000,000 | 2,349,000,000 |
Total current assets | 91,021,000,000 | 3,281,000,000 | 81,803,000,000 |
NONCURRENT ASSETS | |||
Financial assets at fair value through profit or loss | 909,000,000 | 33,000,000 | 677,000,000 |
Financial assets at fair value through other comprehensive income | 3,616,000,000 | 130,000,000 | 7,193,000,000 |
Investments accounted for using equity method | 7,137,000,000 | 257,000,000 | 6,695,000,000 |
Contract assets | 2,608,000,000 | 94,000,000 | 2,495,000,000 |
Property, plant and equipment | 289,100,000,000 | 10,423,000,000 | 281,416,000,000 |
Right-of-use assets | 11,051,000,000 | 398,000,000 | 11,009,000,000 |
Investment properties | 9,663,000,000 | 348,000,000 | 9,621,000,000 |
Intangible assets | 83,945,000,000 | 3,026,000,000 | 90,285,000,000 |
Deferred income tax assets | 2,785,000,000 | 100,000,000 | 3,133,000,000 |
Incremental costs of obtaining a contract | 988,000,000 | 36,000,000 | 1,000,000,000 |
Net defined benefit assets | 3,391,000,000 | 122,000,000 | 3,373,000,000 |
Prepayments | 1,798,000,000 | 65,000,000 | 2,214,000,000 |
Other noncurrent assets | 4,863,000,000 | 176,000,000 | 5,266,000,000 |
Total noncurrent assets | 421,854,000,000 | 15,208,000,000 | 424,377,000,000 |
TOTAL | 512,875,000,000 | 18,489,000,000 | 506,180,000,000 |
CURRENT LIABILITIES | |||
Short-term loans | 65,000,000 | 2,000,000 | 67,000,000 |
Short-term bills payable | 0 | 0 | 6,999,000,000 |
Financial liabilities at fair value through profit or loss | 6,000,000 | 0 | 0 |
Hedging financial liabilities | 8,000,000 | 0 | 0 |
Contract liabilities | 12,234,000,000 | 441,000,000 | 13,437,000,000 |
Trade notes and accounts payable | 18,063,000,000 | 651,000,000 | 15,591,000,000 |
Payables to related parties | 392,000,000 | 14,000,000 | 646,000,000 |
Current tax liabilities | 6,530,000,000 | 235,000,000 | 6,157,000,000 |
Lease liabilities | 3,211,000,000 | 116,000,000 | 3,382,000,000 |
Other payables | 24,437,000,000 | 881,000,000 | 23,988,000,000 |
Provisions | 285,000,000 | 10,000,000 | 314,000,000 |
Current portion of long-term loans | 0 | 0 | 1,600,000,000 |
Other current liabilities | 998,000,000 | 37,000,000 | 1,042,000,000 |
Total current liabilities | 66,229,000,000 | 2,387,000,000 | 73,223,000,000 |
NONCURRENT LIABILITIES | |||
Long-term loans | 1,600,000,000 | 58,000,000 | 0 |
Bonds payable | 26,977,000,000 | 972,000,000 | 19,980,000,000 |
Contract liabilities | 6,840,000,000 | 247,000,000 | 7,289,000,000 |
Deferred income tax liabilities | 2,189,000,000 | 79,000,000 | 1,967,000,000 |
Provisions | 142,000,000 | 5,000,000 | 101,000,000 |
Lease liabilities | 7,062,000,000 | 255,000,000 | 6,215,000,000 |
Customers’ deposits | 5,336,000,000 | 192,000,000 | 4,827,000,000 |
Net defined benefit liabilities | 2,288,000,000 | 82,000,000 | 3,415,000,000 |
Other noncurrent liabilities | 5,082,000,000 | 184,000,000 | 1,890,000,000 |
Total noncurrent liabilities | 57,516,000,000 | 2,074,000,000 | 45,684,000,000 |
Total liabilities | 123,745,000,000 | 4,461,000,000 | 118,907,000,000 |
EQUITY ATTRIBUTABLE TO STOCKHOLDERS OF THE PARENT | |||
Common stocks | 77,574,000,000 | 2,796,000,000 | 77,574,000,000 |
Additional paid-in capital | 149,810,000,000 | 5,401,000,000 | 149,790,000,000 |
Retained earnings | |||
Legal reserve | 77,574,000,000 | 2,796,000,000 | 77,574,000,000 |
Special reserve | 2,676,000,000 | 97,000,000 | 2,676,000,000 |
Unappropriated earnings | 70,157,000,000 | 2,529,000,000 | 67,574,000,000 |
Total retained earnings | 150,407,000,000 | 5,422,000,000 | 147,824,000,000 |
Others | (408,000,000) | (15,000,000) | 927,000,000 |
Total equity attributable to stockholders of the parent | 377,383,000,000 | 13,604,000,000 | 376,115,000,000 |
NONCONTROLLING INTERESTS | 11,747,000,000 | 424,000,000 | 11,158,000,000 |
Total equity | 389,130,000,000 | 14,028,000,000 | 387,273,000,000 |
TOTAL | $ 512,875,000,000 | $ 18,489,000,000 | $ 506,180,000,000 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($)$ / shares | Dec. 31, 2021USD ($)$ / shares | Dec. 31, 2020TWD ($)$ / shares | Dec. 31, 2019TWD ($)$ / shares | |
Statement [LineItems] | ||||
REVENUES | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 |
OPERATING COSTS | 135,111 | 4,871 | 137,029 | 135,953 |
GROSS PROFIT | 75,367 | 2,717 | 70,580 | 71,567 |
OPERATING EXPENSES | ||||
Marketing | 20,944 | 755 | 20,913 | 22,220 |
General and administrative | 5,293 | 191 | 5,006 | 4,758 |
Research and development | 3,688 | 133 | 3,850 | 3,941 |
Expected credit loss (reversal of credit loss) | 143 | 5 | 45 | (125) |
Total operating expenses | 30,068 | 1,084 | 29,814 | 30,794 |
OTHER INCOME AND EXPENSES | (369) | (13) | 1,595 | (127) |
INCOME FROM OPERATIONS | 44,930 | 1,620 | 42,361 | 40,646 |
NON-OPERATING INCOME AND EXPENSES | ||||
Interest income | 95 | 3 | 116 | 251 |
Other income | 378 | 14 | 470 | 531 |
Other gains and losses | 461 | 17 | (159) | 84 |
Interest expense | (218) | (8) | (206) | (104) |
Share of profits of associates and joint ventures accounted for using equity method | 421 | 15 | 244 | 459 |
Total non-operating income and expenses | 1,137 | 41 | 465 | 1,221 |
INCOME BEFORE INCOME TAX | 46,067 | 1,661 | 42,826 | 41,867 |
INCOME TAX EXPENSE | 9,020 | 325 | 8,122 | 7,946 |
NET INCOME | 37,047 | 1,336 | 34,704 | 33,921 |
Items that will not be reclassified to profit or loss: | ||||
Remeasurements of defined benefit pension plans | 390 | 14 | 1,193 | 1,527 |
Unrealized gain or loss on investments in equity instruments at fair value through other comprehensive income | (1,186) | (43) | 519 | 171 |
Gain or loss on hedging instruments subject to basis adjustment | (10) | 0 | 2 | (1) |
Share of remeasurements of defined benefit pension plans of associates and joint ventures | (4) | 0 | (4) | (2) |
Income tax relating to items that will not be reclassified to profit or loss | (78) | (3) | (239) | (305) |
Items that will not be reclassified to profit or loss | (888) | (32) | 1,471 | 1,390 |
Items that may be reclassified subsequently to profit or loss: | ||||
Exchange differences arising from the translation of the foreign operations | (77) | (3) | (177) | (61) |
Share of exchange differences arising from the translation of the foreign operations of associates and joint ventures | (1) | 0 | (4) | (1) |
Income tax relating to items that may be reclassified subsequently | 0 | 0 | 0 | 0 |
Items that may be reclassified subsequently to profit or loss | (78) | (3) | (181) | (62) |
Total other comprehensive income (loss), net of income tax | (966) | (35) | 1,290 | 1,328 |
TOTAL COMPREHENSIVE INCOME | 36,081 | 1,301 | 35,994 | 35,249 |
NET INCOME ATTRIBUTABLE TO | ||||
Stockholders of the parent | 35,616 | 1,284 | 33,419 | 32,947 |
Noncontrolling interests | 1,431 | 52 | 1,285 | 974 |
NET INCOME | 37,047 | 1,336 | 34,704 | 33,921 |
COMPREHENSIVE INCOME ATTRIBUTABLE TO | ||||
Stockholders of the parent | 34,652 | 1,249 | 34,713 | 34,282 |
Noncontrolling interests | 1,429 | 52 | 1,281 | 967 |
TOTAL COMPREHENSIVE INCOME | $ 36,081 | $ 1,301 | $ 35,994 | $ 35,249 |
EARNINGS PER SHARE | ||||
Basic | (per share) | $ 4.59 | $ 0.17 | $ 4.31 | $ 4.25 |
Diluted | (per share) | 4.59 | 0.17 | 4.30 | 4.24 |
American Depositary Shares [Member] | ||||
EARNINGS PER SHARE | ||||
Basic | (per share) | 45.91 | 1.66 | 43.08 | 42.47 |
Diluted | (per share) | $ 45.86 | $ 1.65 | $ 43.03 | $ 42.42 |
Consolidated Statements of Chan
Consolidated Statements of Changes in Equity $ in Millions, $ in Millions | TWD ($) | USD ($) | Common stocks [Member]TWD ($) | Common stocks [Member]USD ($) | Additional paid-in capital [Member]TWD ($) | Additional paid-in capital [Member]USD ($) | Legal reserve [Member]TWD ($) | Legal reserve [Member]USD ($) | Special reserve [Member]TWD ($) | Special reserve [Member]USD ($) | Unappropriated earnings [Member]TWD ($) | Unappropriated earnings [Member]USD ($) | Total retained earnings [Member]TWD ($) | Total retained earnings [Member]USD ($) | Exchange differences arising from the translation of the foreign operations [Member]TWD ($) | Exchange differences arising from the translation of the foreign operations [Member]USD ($) | Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]TWD ($) | Unrealized gain or loss on financial assets at fair value through other comprehensive income [Member]USD ($) | Gain or Loss on hedging instruments [Member]TWD ($) | Gain or Loss on hedging instruments [Member]USD ($) | Total Others [member]TWD ($) | Total Others [member]USD ($) | Total equity attributable to stockholders of the parent [Member]TWD ($) | Total equity attributable to stockholders of the parent [Member]USD ($) | Noncontrolling interests [Member]TWD ($) | Noncontrolling interests [Member]USD ($) |
Beginning balance at Dec. 31, 2018 | $ 384,458 | $ 77,574 | $ 149,762 | $ 77,574 | $ 2,676 | $ 66,575 | $ 146,825 | $ (79) | $ 538 | $ 1 | $ 460 | $ 374,621 | $ 9,837 | |||||||||||||
Cash dividends distributed by Chunghwa | (34,746) | 0 | 0 | 0 | 0 | (34,746) | (34,746) | 0 | 0 | 0 | 0 | (34,746) | 0 | |||||||||||||
Cash dividends distributed by subsidiaries | (710) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (710) | |||||||||||||
Unclaimed dividend | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||||||||||||
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 0 | |||||||||||||||||||||||||
Net income | 33,921 | 0 | 0 | 0 | 0 | 32,947 | 32,947 | 0 | 0 | 0 | 0 | 32,947 | 974 | |||||||||||||
Other comprehensive income (loss) | 1,328 | 0 | 0 | 0 | 0 | 1,208 | 1,208 | (69) | 197 | (1) | 127 | 1,335 | (7) | |||||||||||||
TOTAL COMPREHENSIVE INCOME | 35,249 | 0 | 0 | 0 | 0 | 34,155 | 34,155 | (69) | 197 | (1) | 127 | 34,282 | 967 | |||||||||||||
Share-based payment transactions of subsidiaries | 21 | 0 | (1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (1) | 22 | |||||||||||||
Net increase (decrease) in noncontrolling interests | (1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (1) | |||||||||||||
Ending balance at Dec. 31, 2019 | 384,272 | 77,574 | 149,762 | 77,574 | 2,676 | 65,984 | 146,234 | (148) | 735 | 0 | 587 | 374,157 | 10,115 | |||||||||||||
Cash dividends distributed by Chunghwa | (32,783) | 0 | 0 | 0 | 0 | (32,783) | (32,783) | 0 | 0 | 0 | 0 | (32,783) | 0 | |||||||||||||
Cash dividends distributed by subsidiaries | (775) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (775) | |||||||||||||
Unclaimed dividend | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | |||||||||||||
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | (2) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (2) | |||||||||||||
Net income | 34,704 | 0 | 0 | 0 | 0 | 33,419 | 33,419 | 0 | 0 | 0 | 0 | 33,419 | 1,285 | |||||||||||||
Other comprehensive income (loss) | 1,290 | 0 | 0 | 0 | 0 | 937 | 937 | (167) | 522 | 2 | 357 | 1,294 | (4) | |||||||||||||
TOTAL COMPREHENSIVE INCOME | 35,994 | 0 | 0 | 0 | 0 | 34,356 | 34,356 | (167) | 522 | 2 | 357 | 34,713 | 1,281 | |||||||||||||
Disposal of investments in equity instruments at fair value through other comprehensive income | 0 | 0 | 0 | 0 | 0 | 17 | 17 | 0 | (17) | 0 | (17) | 0 | 0 | |||||||||||||
Share-based payment transactions of subsidiaries | 89 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 63 | |||||||||||||
Net increase (decrease) in noncontrolling interests | 476 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 476 | |||||||||||||
Ending balance at Dec. 31, 2020 | 387,273 | 77,574 | 149,790 | 77,574 | 2,676 | 67,574 | 147,824 | (315) | 1,240 | 2 | 927 | 376,115 | 11,158 | |||||||||||||
Cash dividends distributed by Chunghwa | (33,404) | 0 | 0 | 0 | 0 | (33,404) | (33,404) | 0 | 0 | 0 | 0 | (33,404) | 0 | |||||||||||||
Cash dividends distributed by subsidiaries | (896) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (896) | |||||||||||||
Unclaimed dividend | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | |||||||||||||
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||||||||||||
Net income | 37,047 | $ 1,336 | 0 | 0 | 0 | 0 | 35,616 | 35,616 | 0 | 0 | 0 | 0 | 35,616 | 1,431 | ||||||||||||
Other comprehensive income (loss) | (966) | (35) | 0 | 0 | 0 | 0 | 311 | 311 | (77) | (1,188) | (10) | (1,275) | (964) | (2) | ||||||||||||
TOTAL COMPREHENSIVE INCOME | 36,081 | 1,301 | 0 | 0 | 0 | 0 | 35,927 | 35,927 | (77) | (1,188) | (10) | (1,275) | 34,652 | 1,429 | ||||||||||||
Disposal of investments in equity instruments at fair value through other comprehensive income | 0 | 0 | 0 | 0 | 0 | 60 | 60 | 0 | (60) | 0 | (60) | 0 | 0 | |||||||||||||
Share-based payment transactions of subsidiaries | 73 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 56 | |||||||||||||
Net increase (decrease) in noncontrolling interests | 0 | |||||||||||||||||||||||||
Ending balance at Dec. 31, 2021 | $ 389,130 | $ 14,028 | $ 77,574 | $ 2,796 | $ 149,810 | $ 5,401 | $ 77,574 | $ 2,796 | $ 2,676 | $ 97 | $ 70,157 | $ 2,529 | $ 150,407 | $ 5,422 | $ (392) | $ (15) | $ (8) | $ 0 | $ (8) | $ 0 | $ (408) | $ (15) | $ 377,383 | $ 13,604 | $ 11,747 | $ 424 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
CASH FLOWS FROM OPERATING ACTIVITIES | ||||
Income before income tax | $ 46,067,000,000 | $ 1,661 | $ 42,826,000,000 | $ 41,867,000,000 |
Adjustments for: | ||||
Depreciation | 31,832,000,000 | 1,148 | 30,942,000,000 | 30,923,000,000 |
Amortization | 6,569,000,000 | 237 | 5,424,000,000 | 4,253,000,000 |
Amortization of incremental costs of obtaining contracts | 815,000,000 | 29 | 772,000,000 | 1,173,000,000 |
Expected credit loss (reversal of credit loss) | 143,000,000 | 5 | 45,000,000 | (125,000,000) |
Interest expense | 218,000,000 | 8 | 206,000,000 | 104,000,000 |
Interest income | (95,000,000) | (3) | (116,000,000) | (251,000,000) |
Dividend income | (154,000,000) | (6) | (246,000,000) | (296,000,000) |
Compensation cost of share-based payment transactions | 19,000,000 | 0 | 8,000,000 | 2,000,000 |
Share of profits of associates and joint ventures accounted for using equity method | (421,000,000) | (15) | (244,000,000) | (459,000,000) |
Loss (gain) on disposal of property, plant and equipment | 3,000,000 | 0 | (1,428,000,000) | 38,000,000 |
Gain on disposal of investment properties | 0 | 0 | (151,000,000) | 0 |
Loss on disposal of intangible assets | 0 | 0 | 2,000,000 | 0 |
Loss (gain) on disposal of financial instruments | 0 | 0 | 2,000,000 | (4,000,000) |
Gain on disposal of investments accounted for using equity method | (4,000,000) | 0 | (10,000,000) | (151,000,000) |
Provision for impairment loss and obsolescence of inventory | 207,000,000 | 7 | 1,161,000,000 | 475,000,000 |
Impairment loss on property, plant and equipment | 0 | 0 | 0 | 93,000,000 |
Impairment loss on right-of-use assets | 420,000,000 | 15 | 0 | 0 |
Reversal of impairment loss on investment properties | (83,000,000) | (3) | (27,000,000) | (57,000,000) |
Impairment loss on intangible assets | 29,000,000 | 1 | 9,000,000 | 9,000,000 |
Impairment loss on other assets | 0 | 0 | 0 | 44,000,000 |
Valuation loss (gain) on financial assets and liabilities at fair value through profit or loss, net | (243,000,000) | (9) | 99,000,000 | 38,000,000 |
Others | (133,000,000) | (5) | 4,000,000 | (26,000,000) |
Changes in operating assets and liabilities: | ||||
Contract assets | (336,000,000) | (12) | (203,000,000) | 173,000,000 |
Trade notes and accounts receivable | (1,339,000,000) | (48) | 4,071,000,000 | 4,039,000,000 |
Receivables from related parties | 189,000,000 | 7 | (214,000,000) | 7,000,000 |
Inventories | 875,000,000 | 32 | 3,915,000,000 | (2,698,000,000) |
Prepayments | 392,000,000 | 14 | 173,000,000 | 115,000,000 |
Other current monetary assets | (386,000,000) | (14) | 355,000,000 | (155,000,000) |
Other current assets | (630,000,000) | (23) | 156,000,000 | 146,000,000 |
Incremental cost of obtaining contracts | (803,000,000) | (29) | (829,000,000) | (781,000,000) |
Contract liabilities | (1,652,000,000) | (60) | (3,289,000,000) | 6,701,000,000 |
Trade notes and accounts payable | 2,468,000,000 | 89 | 21,000,000 | (5,152,000,000) |
Payables to related parties | (255,000,000) | (9) | (8,000,000) | (264,000,000) |
Other payables | 248,000,000 | 9 | (924,000,000) | 697,000,000 |
Provisions | 13,000,000 | 0 | 95,000,000 | 97,000,000 |
Other current liabilities | (12,000,000) | 0 | 46,000,000 | (159,000,000) |
Net defined benefit plans | (756,000,000) | (27) | (174,000,000) | 534,000,000 |
Cash generated from operations | 83,205,000,000 | 2,999 | 82,469,000,000 | 80,950,000,000 |
Interests paid | (192,000,000) | (6) | (161,000,000) | (104,000,000) |
Income taxes paid | (8,155,000,000) | (294) | (7,852,000,000) | (8,419,000,000) |
Net cash provided by operating activities | 74,858,000,000 | 2,699 | 74,456,000,000 | 72,427,000,000 |
CASH FLOWS FROM INVESTING ACTIVITIES | ||||
Acquisition of financial assets at fair value through other comprehensive income | (313,000,000) | (11) | (85,000,000) | (60,000,000) |
Proceeds from disposal of financial assets at fair value through other comprehensive income | 2,912,000,000 | 105 | 297,000,000 | 0 |
Proceeds from return of financial assets at fair value through other comprehensive income | 0 | 0 | 0 | 9,000,000 |
Acquisition of financial assets at fair value through profit or loss | (44,000,000) | (2) | (39,000,000) | (443,000,000) |
Proceeds from disposal of financial assets at fair value through profit or loss | 25,000,000 | 1 | 30,000,000 | 146,000,000 |
Acquisition of time deposits and negotiable certificates of deposit with maturities of more than three months | (17,369,000,000) | (626) | (5,216,000,000) | (14,381,000,000) |
Proceeds from disposal of time deposits and negotiable certificates of deposit with maturities of more than three months | 18,446,000,000 | 665 | 6,630,000,000 | 16,520,000,000 |
Acquisition of repurchase agreements collateralized by bonds with maturities of more than three months | 0 | 0 | 0 | (15,000,000) |
Proceeds from disposal of repurchase agreements collateralized by bonds with maturities of more than three months | 0 | 0 | 15,000,000 | 0 |
Acquisition of investments accounted for using equity method | (330,000,000) | (12) | (10,000,000) | (4,190,000,000) |
Proceeds from disposal of investments accounted for using equity method | 9,000,000 | 0 | 0 | 32,000,000 |
Acquisition of property, plant and equipment | (35,333,000,000) | (1,274) | (23,511,000,000) | (24,166,000,000) |
Proceeds from disposal of property, plant and equipment | 27,000,000 | 1 | 319,000,000 | 48,000,000 |
Acquisition of intangible assets | (256,000,000) | (9) | (47,605,000,000) | (363,000,000) |
Acquisition of investment properties | (1,000,000) | 0 | (54,000,000) | (1,000,000) |
Proceeds from disposal of investment properties | 0 | 0 | 188,000,000 | 0 |
Decrease (increase) in other noncurrent assets | 338,000,000 | 12 | (208,000,000) | (1,122,000,000) |
Interests received | 95,000,000 | 3 | 125,000,000 | 257,000,000 |
Dividends received | 622,000,000 | 22 | 516,000,000 | 602,000,000 |
Net cash inflow on acquisition of subsidiaries | 0 | 0 | 354,000,000 | 0 |
Net cash used in investing activities | (31,172,000,000) | (1,125) | (68,254,000,000) | (27,127,000,000) |
CASH FLOWS FROM FINANCING ACTIVITIES | ||||
Proceeds from short-term loans | 154,000,000 | 6 | 115,000,000 | 575,000,000 |
Repayments of short-term loans | (156,000,000) | (6) | (142,000,000) | (585,000,000) |
Proceeds from short-term bills payable | 5,000,000,000 | 180 | 41,000,000,000 | 0 |
Repayments of short-term bills payable | (12,000,000,000) | (433) | (34,000,000,000) | 0 |
Proceeds from issuance of bonds | 7,000,000,000 | 252 | 20,000,000,000 | 0 |
Payments for transaction costs attributable to the issuance of bonds | (7,000,000) | 0 | (21,000,000) | 0 |
Increase in customers’ deposits | 477,000,000 | 17 | 62,000,000 | 8,000,000 |
Payments for the principal of lease liabilities | (3,729,000,000) | (134) | (3,683,000,000) | (3,728,000,000) |
Increase in other noncurrent liabilities | 3,191,000,000 | 115 | 342,000,000 | 233,000,000 |
Cash dividends paid | (33,404,000,000) | (1,204) | (32,783,000,000) | (34,746,000,000) |
Cash dividends distributed to noncontrolling interests | (896,000,000) | (32) | (775,000,000) | (710,000,000) |
Change in other noncontrolling interests | 54,000,000 | 2 | 81,000,000 | 18,000,000 |
Unclaimed dividend | 2,000,000 | 0 | 2,000,000 | 1,000,000 |
Net cash used in financing activities | (34,314,000,000) | (1,237) | (9,802,000,000) | (38,934,000,000) |
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | (13,000,000) | 0 | (30,000,000) | 39,000,000 |
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 9,359,000,000 | 337 | (3,630,000,000) | 6,405,000,000 |
CASH AND CASH EQUIVALENTS, BEGINNING OF THE YEAR | 30,420,000,000 | 1,097 | 34,050,000,000 | 27,645,000,000 |
CASH AND CASH EQUIVALENTS, END OF THE YEAR | $ 39,779,000,000 | $ 1,434 | $ 30,420,000,000 | $ 34,050,000,000 |
General
General | 12 Months Ended |
Dec. 31, 2021 | |
General Information [Abstract] | |
General | 1. GENERAL Chunghwa Telecom Co., Ltd. (“Chunghwa”) was incorporated on July 1, 1996 in the Republic of China (“ROC”). Chunghwa is a company limited by shares and, prior to August 2000, was wholly owned by the Ministry of Transportation and Communications (“MOTC”). Prior to July 1, 1996, the current operations of Chunghwa were carried out under the Directorate General of Telecommunications (“DGT”). The DGT was established by the MOTC in June 1943 to take primary responsibility in the development of telecommunications infrastructure and to formulate policies related to telecommunications. On July 1, 1996, the telecom operations of the DGT were spun-off as Chunghwa which continues to carry out the business and the DGT continues to be the industry regulator. Effective August 12, 2005, the MOTC completed the process of privatizing Chunghwa by reducing the government ownership to below 50% in various stages. In July 2000, Chunghwa received approval from the Securities and Futures Commission (the “SFC”) for a domestic initial public offering and its common stocks were listed and traded on the Taiwan Stock Exchange (the “TWSE”) on October 27, 2000. Certain of Chunghwa’s common stocks were sold, in connection with the foregoing privatization plan, in domestic public offerings at various dates from August 2000 to July 2003. Certain of Chunghwa’s common stocks were also sold in an international offering of securities in the form of American Depository Shares (“ADS”) on July 17, 2003 and were listed and traded on the New York Stock Exchange (the “NYSE”). The MOTC sold common stocks of Chunghwa by auction in the ROC on August 9, 2005 and completed the second international offering on August 10, 2005. Upon completion of the share transfers associated with these offerings on August 12, 2005, the MOTC owned less than 50% of the outstanding shares of Chunghwa and completed the privatization plan. Chunghwa together with its subsidiaries are hereinafter referred to collectively as the “Company”. |
Approval of Financial Statement
Approval of Financial Statements | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Approval Of Financial Statement [Abstract] | |
Approval of Financial Statements | 2. APPROVAL OF FINANCIAL STATEMENTS The consolidated financial statements were authorized for issue by the management on March 28, 2022. |
Summary of Significant Accounti
Summary of Significant Accounting Policies | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Summary Of Significant Accounting Policies [Abstract] | |
Summary of Significant Accounting Policies | 3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Statement of Compliance The accompanying consolidated financial statements have been prepared in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board (collectively, “IFRSs”). Basis of Preparation The consolidated financial statements have been prepared on the historical cost basis except for certain financial instruments that are measured at fair values and net defined benefit liabilities (assets) which are measured at the present value of the defined benefit obligations less the fair value of plan assets. Current and Noncurrent Assets and Liabilities Current assets include: a. Assets held primarily for the purpose of trading; b. Assets expected to be realized within twelve months after the reporting period; and c. Cash and cash equivalents unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. Current liabilities include: a. Liabilities held primarily for the purpose of trading; b. Liabilities due to be settled within twelve months after the reporting period; and c. Liabilities for which the Company does not have an unconditional right to defer settlement for at least twelve months after the reporting period. Assets and liabilities that are not classified as current are classified as noncurrent. Light Era Development Co., Ltd. (“LED”) engages mainly in development of property for rent and sale. The assets and liabilities of LED related to property development within its operating cycle, which is over one year, are classified as current items. Basis of Consolidation a. Principles for preparing consolidated financial statements The consolidated financial statements incorporate the financial statements of Chunghwa and entities controlled by Chunghwa (its subsidiaries). Income and expenses of subsidiaries acquired are included in the consolidated statement of comprehensive income from the acquisition date. When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies in line with those used by the Company. All inter-company transactions, balances, income and expenses are eliminated in full upon consolidation. Attribution of total comprehensive income to noncontrolling interests Total comprehensive income of subsidiaries is attributed to the stockholders of the parent and to the noncontrolling interests even if it results in the noncontrolling interests having a deficit balance. Changes in the Company’s ownership interests in subsidiaries Changes in the Company’s ownership interests in subsidiaries that do not result in the Company losing control over the subsidiaries are accounted for as equity transactions. The carrying amounts of the Company’s interests and the noncontrolling interests are adjusted to reflect the changes in their relative interests in the subsidiaries. Any difference between the amount by which the noncontrolling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to stockholders of the parent. b. The subsidiaries in the consolidated financial statements The detail information of the subsidiaries at the end of reporting period was as follows: Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Chunghwa Telecom Co., Ltd. Senao International Co., Ltd. (“SENAO”) Handset and peripherals retailer, sales of CHT mobile phone plans as an agent 28 28 a) Light Era Development Co., Ltd. (“LED”) Planning and development of real estate and intelligent buildings, and property management 100 100 Donghwa Telecom Co., Ltd. (“DHT”) International private leased circuit, IP VPN service, and IP transit services 100 100 b) Chunghwa Telecom Singapore Pte., Ltd. (“CHTS”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa System Integration Co., Ltd. (“CHSI”) Providing system integration services and telecommunications equipment 100 100 Chunghwa Investment Co., Ltd. (“CHI”) Investment 89 89 CHIEF Telecom Inc. (“CHIEF”) Network integration, internet data center (“IDC”), communications integration and cloud application services 56 56 c) CHYP Multimedia Marketing & Communications Co., Ltd. (“CHYP”) Digital information supply services and advertisement services 100 100 Prime Asia Investments Group Ltd. (B.V.I.) (“Prime Asia”) Investment 100 100 Spring House Entertainment Tech. Inc. (“SHE”) Software design services, internet contents production and play, and motion picture production and distribution 56 56 Chunghwa Telecom Global, Inc. (“CHTG”) International private leased circuit, internet services, and transit services 100 100 Chunghwa Telecom Vietnam Co., Ltd. (“CHTV”) Intelligent energy saving solutions, international circuit, and information and communication technology (“ICT”) services 100 100 Smartfun Digital Co., Ltd. (“SFD”) Providing diversified family education digital services 65 65 Chunghwa Telecom Japan Co., Ltd. (“CHTJ”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa Sochamp Technology Inc. (“CHST”) Design, development and production of Automatic License Plate Recognition software and hardware 51 51 Honghwa International Co., Ltd. (“HHI”) Telecommunications engineering, sales agent of mobile phone plan application and other business services, etc. 100 100 Chunghwa Leading Photonics Tech Co., Ltd. (“CLPT”) Production and sale of electronic components and finished products 75 75 Chunghwa Telecom (Thailand) Co., Ltd. (“CHTT”) International private leased circuit, IP VPN service, ICT and cloud VAS services 100 100 (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note CHT Security Co., Ltd. (“CHTSC”) Computing equipment installation, wholesale of computing and business machinery equipment and software, management consulting services, data processing services, digital information supply services and internet identify services 80 77 d) International Integrated Systems, Inc. (“IISI”) IT solution provider, IT application consultation, system integration and package solution 51 51 e) Senao International Co., Ltd. Senao International (Samoa) Holding Ltd. (“SIS”) International investment 100 100 f) Youth Co., Ltd. (“Youth”) Sale of information and communication technologies products 96 96 g) Aval Technologies Co., Ltd. (“Aval”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. (“SENYOUNG”) Property and liability insurance agency 100 100 Youth Co., Ltd. ISPOT Co., Ltd. (“ISPOT”) Sale of information and communication technologies products 100 100 Youyi Co., Ltd. (“Youyi”) Maintenance of information and communication technologies products 100 100 Aval Technologies Co., Ltd. Wiin Technology Co., Ltd. (“Wiin”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. Senaolife Insurance Agent Co., Ltd. (“Senaolife”) Life insurance services 100 100 CHIEF Telecom Inc. Unigate Telecom Inc. (“Unigate”) Telecommunications and internet service 100 100 Chief International Corp. (“CIC”) Telecommunications and internet service 100 100 Shanghai Chief Telecom Co., Ltd. (“SCT”) Telecommunications and internet service 49 49 h) Chunghwa Investment Co., Ltd. Chunghwa Precision Test Tech. Co., Ltd. (“CHPT”) Production and sale of semiconductor testing components and printed circuit board 34 34 i) Chunghwa Precision Test Tech. Co., Ltd. Chunghwa Precision Test Tech. USA Corporation (“CHPT (US)”) Design and after-sale services of semiconductor testing components and printed circuit board 100 100 j) CHPT Japan Co., Ltd. (“CHPT (JP)”) Related services of electronic parts, machinery processed products and printed circuit board 100 100 Chunghwa Precision Test Tech. International, Ltd. (“CHPT (International)”) Wholesale and retail of electronic materials, and investment 100 100 k) Senao International (Samoa) Holding Ltd. Senao International HK Limited (“SIHK”) International investment 100 100 l) (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Senao International HK Limited Senao International Trading (Shanghai) Co., Ltd. (“SITS”) Sale of information and communication technologies products 100 — m) Prime Asia Investments Group Ltd. (B.V.I.) Chunghwa Hsingta Co., Ltd. (“CHC”) Investment 100 100 Chunghwa Hsingta Co., Ltd. Chunghwa Telecom (China) Co., Ltd. (“CTC”) Integrated information and communication solution services for enterprise clients, and intelligent energy network service 100 100 n) Chunghwa Precision Test Tech. International, Ltd. Shanghai Taihua Electronic Technology Limited (“STET”) Design of printed circuit board and related consultation service 100 100 Su Zhou Precision Test Tech. Ltd. (“SZPT”) Assembly processed of circuit board, design of printed circuit board and related consultation service 100 100 o) International Integrated Systems, Inc. Infoexplorer International Co., Ltd.(“IESA”) Investment 100 100 p) IISI Investment Co., Ltd. (“IICL”) Investment 100 100 p) Unitronics Technology Corp. (“UTC”) Development and maintenance of information system 99.96 99.96 p) Infoexplorer International Co., Ltd. International Integrated Systems (Hong Kong) Limited (“IEHK”) Investment and technical consulting service 100 100 p) IISI Investment Co., Ltd. Leading Tech Co., Ltd. (“LTCL”) Investment 100 100 p) Leading Tech Co., Ltd. Leading Systems Co., Ltd. (“LSCL”) Investment 100 100 p) Leading Systems Co., Ltd. International Integrated Systems Inc. (Shanghai) (“IISS”) Development and maintenance of information system 100 — p) q) International Integrated Systems Inc. (Shanghai) Huiyu Shanghai Management Consultancy Co., Ltd. (“HSMC”) Development and maintenance of information system — — p) r) (Concluded) a ) Chunghwa continues to control six out of eleven seats of the Board of Directors of SENAO through the support of large beneficial stockholders. As a result, the Company treated SENAO as a subsidiary. b ) DHT reduced and returned its capital to its stakeholders in March 2021. The Company’s ownership interest in DHT remained the same c ) CHIEF issued new shares in March 2020, December 2020, March 2021 and December 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHIEF decreased to 59.08% and 58.89% as of December 31, 2020 and 2021, respectively. d ) CHTSC issued new shares in February 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHTSC decreased to 77.46% as of December 31, 2021. e ) Chunghwa obtained 20.38% ownership interest in IISI in July 2020 and Chunghwa’s ownership interest in IISI increased to 51.54% by considering the previously held ownership interest in IISI. Chunghwa obtained over half of the seats of the Board of Directors of IISI; therefore, Chunghwa gained control over IISI and treated it as a subsidiary. IISI issued new shares in September 2020 and January 2021 as its employees exercised options; therefore, the Company’s ownership interest in IISI decreased to 51.20% and 51.02% as of December 31, 2020 and 2021, respectively. f ) SIS reduced and returned its capital to its stakeholders in November 2020 and July 2021. SIS reduced 8.14% and 48.15% of its capital to offset accumulated deficits in February and October 2021, respectively. The Company’s ownership interest in SIS remained the same. g ) SENAO subscribed for all the shares in the capital increase of Youth in April 2020. Therefore, the Company’s ownership interest in Youth increased from 92.89% to 95.79%. h ) CHIEF has two out of three seats of the Board of Directors of SCT according to the mutual agreements among stockholders and gained control over SCT; hence, SCT is deemed as a subsidiary of the Company. i ) Though the Company’s ownership interest in CHPT is less than 50 %, the management considered the absolute and relative size of ownership interest, and the dispersion of shares owned by the other stockholders and concluded that the Company has a sufficiently dominant voting interest to direct the relevant activities; hence, CHPT is deemed as a subsidiary of the Company . j ) CHPT increased its investment in CHPT (US) proportionally in August 2021 and the Company’s ownership interest in CHPT (US) remained the same. k ) CHPT increased its investment in CHPT (International) proportionally in April 2021 and the Company’s ownership interest in CHPT (International) remained the same. l ) SIHK reduced and returned its capital to its stakeholders in November 2020 and May 2021. SIHK reduced 8.15% and 47.79% of its capital to offset accumulated deficits in January and August 2021, respectively. The Company’s ownership interest in SIHK remained the same. m ) SITS completed its liquidation in April 2021. n ) CTC was approved to end and dissolve its business in August 2020. The liquidation of CTC is still in process. o ) p ) It is a subsidiary of IISI. q ) IISS completed its liquidation in August 2021 r ) HSMC completed its liquidation in December 2020. The following diagram presented information regarding the relationship and percentages of ownership interests between Chunghwa and its subsidiaries as of December 31, 2021. Business Combinations Acquisitions of businesses are accounted for using the acquisition method. Acquisition-related costs are generally recognized in profit or loss as they are incurred. Goodwill is measured as the excess of the sum of the consideration transferred and the fair value of the acquirer’s previously held equity interests in the acquiree over the net of the acquisition-date amounts of the identifiable assets acquired and the liabilities assumed. Noncontrolling interests that are present ownership interests and entitle their holders to a proportionate share of the entity’s net assets in the event of liquidation are measured at the noncontrolling interests’ proportionate share of the recognized amounts of the acquiree’s identifiable net assets. When a business combination is achieved in stages, the Company’s previously held equity interest in an acquiree is remeasured to fair value at the acquisition date and the resulting gain or loss is recognized in profit or loss. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are recognized on the same basis as would be required had those interests been directly disposed of by the Company . Foreign Currencies In preparing the financial statements of each individual entity, transactions in currencies other than the entity’s functional currency (foreign currencies) are recognized at the rates of exchange prevailing at the dates of the transactions. At the end of each reporting period, monetary items denominated in foreign currencies are retranslated at the rates prevailing at that date. Exchange differences on monetary items arising from settlement or translation are recognized in profit or loss in the period in which they arise. Non-monetary items carried at fair value that are denominated in foreign currencies are retranslated at the rates prevailing at the date when the fair value was determined and related exchange differences are recognized in profit or loss. Conversely, when the fair value changes were recognized in other comprehensive income, related exchange difference shall be recognized in other comprehensive income. Non-monetary items that are measured at historical cost in a foreign currency are not retranslated. Chunghwa uses New Taiwan dollars (NT$) as the functional currency. For the purpose of presenting consolidated financial statements, the assets and liabilities of the Company’s foreign operations (including those subsidiaries, associates and joint ventures in other countries or currencies used different with Chunghwa) are translated into New Taiwan dollars using exchange rates prevailing at the end of each reporting period. Income and expense items are translated at the average exchange rates for the period. Exchange differences arising, if any, are recognized in other comprehensive income and attributed to stockholders of the parent and noncontrolling interests as appropriate. Cash Equivalents Cash equivalents include those maturities within three months from the date of acquisition, highly liquid, readily convertible to a known amount of cash and are subject to an insignificant risk of changes in value such as commercial papers, negotiable certificates of deposit, time deposits, repurchase agreements collateralized by bonds and stimulus vouchers. These cash equivalents are held for the purpose of meeting short-term cash commitments. Inventories Inventories are stated at the lower of cost or net realizable value item by item, except for those that may be appropriate to group items of similar or related inventories. Net realizable value is the estimated selling price of inventories less all estimated costs of completion and costs necessary to make the sale. The calculation of the cost of inventory is derived using the weighted-average method. Buildings and Land Consigned to Construction Contractors Inventories of LED are stated at the lower of cost or net realizable value item by item, except for those that may be appropriate to group as similar items or related inventories. Land acquired before construction is classified as land held for development and then reclassified as land held under development after LED begins its construction project. Upon the completion of the construction project, LED recognizes revenues in the amount of proceeds from customers for land and buildings and related costs when ownership is transferred to the customers. The unsold portion of the completed construction project is transferred to land and building held for sale. Investments in Associates and Joint Ventures An associate is an entity over which the Company has significant influence and that is neither a subsidiary nor an interest in a joint venture. A joint venture is a joint arrangement whereby the Company and other parties that have joint control of the arrangement have rights to the net assets of the arrangement. Investments accounted for using the equity method include investments in associates and interests in joint ventures. Under the equity method, an investment in an associate and a joint venture is initially recognized at cost and adjusted thereafter to recognize the Company’s share of profit or loss and other comprehensive income of the associate and joint venture as well as the distribution received. The Company also recognizes its share in changes in the associates and joint ventures. When the Company subscribes for new shares of an associate and a joint venture at a percentage different from its existing ownership percentage, the resulting carrying amount of the investment differs from the amount of the Company’s proportionate interest in the associate and joint venture. The Company records such a difference as an adjustment to investments with the corresponding amount charged or credited to additional paid-in capital. When the adjustment should be debited to additional paid-in capital but the additional paid-in capital recognized from investments accounted for using equity method is insufficient, the shortage is debited to retained earnings. Any excess of the cost of acquisition over the Company’s share of the fair value of the identifiable net assets and liabilities of an associate and a joint venture at the date of acquisition is recognized as goodwill, which is included within the carrying amount of the investment and shall not be amortized. Any excess of the Company’s share of the net fair value of the identifiable assets and liabilities over the cost of acquisition is recognized immediately in profit or loss. The entire carrying amount of an investment (including goodwill) is tested for impairment as a single asset by comparing its recoverable amount with its carrying amount. Any impairment loss recognized is not allocated to any asset, including goodwill, that forms part of the carrying amount of the investment. Any reversal of that impairment loss is recognized to the extent that the recoverable amount of the investment subsequently increases. The Company discontinues the use of the equity method from the date on which its investment ceases to be an associate and a joint venture. Any retained investment is measured at fair value at that date, and the fair value is regarded as the investment’s fair value on initial recognition as a financial asset. The difference between the previous carrying amount of the associate and joint venture attributable to the retained interest and its fair value is included in the determination of the gain or loss on disposal of the associate and joint venture. The Company accounts for all amounts previously recognized in other comprehensive income in relation to that associate and joint venture on the same basis as would be required had that associate and joint venture directly disposed of the related assets or liabilities. When the Company transacts with its associate and joint venture, profits and losses resulting from the transactions with the associate and joint venture are recognized in the Company’s consolidated financial statements only to the extent of interests in the associate and joint venture that are not related to the Company. Property, Plant and Equipment Property, plant and equipment are initially measured at cost and subsequently measured at cost less accumulated depreciation and accumulated impairment loss. Property, plant and equipment in the course of construction are depreciated and classified to the appropriate categories of property, plant and equipment when completed and ready for their intended use. Depreciation on property, plant and equipment is recognized using the straight-line method. Each significant part is depreciated separately. Freehold land is not depreciated. The estimated useful lives, residual values and depreciation method are reviewed at the end of each year, with the effect of any changes in estimate accounted for on a prospective basis. On derecognition of an item of property, plant and equipment, the difference between the net disposal proceeds and the carrying amount of the asset is recognized in profit or loss in the period in which the property is derecognized . Investment Properties Investment properties are properties held to earn rentals and/or for capital appreciation. Investment properties also include land held for a currently undetermined future use. Investment properties are measured initially at cost, including transaction costs. Subsequent to initial recognition, investment properties are measured at cost less accumulated depreciation and accumulated impairment loss. Depreciation is recognized using the straight-line method. For a transfer from the investment properties to property, plant and equipment, the deemed cost of the property, plant and equipment for subsequent accounting is its carrying amount at the commencement of owner-occupation. For a transfer from the property, plant and equipment to investment properties, the deemed cost of the investment properties for subsequent accounting is its carrying amount at the end of owner-occupation. For a contract where a land owner provides land for the construction of buildings by a property developer in exchange for a certain percentage of the buildings, any exchange gain or loss is recognized when the exchange transaction occurs if the exchange transaction has commercial substance. On derecognition of the investment properties, the difference between the net disposal proceeds and the carrying amount of the asset is recognized in profit or loss in the period in which the property is derecognized. Goodwill Goodwill arising from the acquisition of a business is carried at cost as established at the date of acquisition of the business less accumulated impairment loss. For the purpose of impairment testing, goodwill is allocated to each of the Company’s cash-generating units or groups of cash-generating units (referred to as “cash-generating unit”) that are expected to benefit from the synergies of the business combination. A cash-generating unit to which goodwill has been allocated is tested for impairment annually, or more frequently when there is an indication that the unit may be impaired, by comparing its carrying amount, including the attributable goodwill, with its recoverable amount. However, if the goodwill allocated to a cash-generating unit was acquired in a business combination during the current annual period, that unit shall be tested for impairment before the end of the current annual period. If the recoverable amount of the cash-generating unit is less than its carrying amount, the impairment loss is allocated first to reduce the carrying amount of any goodwill allocated to the unit and then to the other assets of the unit pro rata based on the carrying amount of each asset in the unit. Any impairment loss is recognized directly in profit or loss. An impairment loss recognized for goodwill is not reversed in subsequent periods. Intangible Assets Other Than Goodwill Intangible assets with finite useful lives that are acquired separately are initially measured at cost and subsequently measured at cost less accumulated amortization and accumulated impairment loss. Amortization is recognized on a straight-line basis. The estimated useful life, residual value, and amortization method are reviewed at the end of each reporting period, with the effect of any changes in estimate being accounted for on a prospective basis. The residual value of an intangible asset with a finite useful life shall be assumed to be zero unless the Company expects to dispose of the intangible asset before the end of its economic life. Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date (which is regarded as their cost). Subsequent to initial recognition, they are measured on the same basis as intangible assets that are acquired separately . Gains or losses arising from derecognition of an intangible asset, measured as the difference between the net disposal proceeds and the carrying amount of the asset, are recognized in profit or loss in the period in which the asset is derecognized. Impairment of Property, Plant and Equipment, Right-of-use Assets, Investment Properties, Intangible Assets Other Than Goodwill and Incremental Costs of Obtaining Contracts At the end of each reporting period, the Company reviews the carrying amounts of its property, plant and equipment, right-of-use assets, investment properties and intangible assets, excluding goodwill, to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss. When it is not possible to estimate the recoverable amount of an individual asset, the Company estimates the recoverable amount of the cash-generating unit to which the asset belongs. Intangible assets not yet available for use are tested for impairment at least annually, and whenever there is an indication that the asset may be impaired. Recoverable amount is the higher of fair value less costs to sell and value in use. If the recoverable amount of an asset or cash-generating unit is estimated to be less than its carrying amount, the carrying amount of the asset or cash-generating unit is reduced to its recoverable amount, with the resulting impairment loss recognized in profit or loss. Impairment loss from the assets related to incremental cost of obtaining contracts is recognized to the extent that the carrying amount of the assets exceeds the remaining amount of consideration that the Company expects to receive in exchange for related goods or services less the costs which relate directly to providing those goods or services. When an impairment loss is subsequently reversed, the carrying amount of the asset or cash-generating unit is increased to the revised estimate of its recoverable amount, but only to the extent of the carrying amount that would have been determined had no impairment loss been recognized for the asset or cash-generating unit in prior years. A reversal of an impairment loss is recognized in profit or loss. Financial Instruments Financial assets and financial liabilities are recognized when the Company becomes a party to the contractual provisions of the instruments. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through profit or loss) are added to the fair value of the financial assets or financial liabilities, as appropriate, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through profit or loss are recognized immediately in profit or loss. a. Financial assets All regular way purchases or sales of financial assets are recognized and derecognized on a trade date basis. The regular way of transaction means the purchase or sale of financial assets delivered within the time frame established by regulation or convention in the marketplace. 1) Measurement category a) Financial assets at fair value through profit or loss (FVTPL) Financial asset is classified as at FVTPL when the financial asset is mandatorily classified as at FVTPL. Financial assets mandatorily classified as at FVTPL include investments in equity instruments which are not designated as at fair value through other comprehensive income (FVOCI ). Financial assets at FVTPL are stated at fair value, with any gains or losses arising on remeasurement recognized in profit or loss. The net gain or loss recognized in profit or loss does not incorporate any dividend earned on the financial asset. Fair value is determined in the manner described in Note 38. b) Financial assets at amortized cost Financial assets that meet the following conditions are subsequently measured at amortized cost: i. The financial asset is held within a business model whose objective is to hold financial assets in order to collect contractual cash flows; and ii. The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Subsequent to initial recognition, financial assets at amortized cost are measured at amortized cost, which equals to gross carrying amount determined by the effective interest method less any impairment loss, except for short-term receivables as the effect of discounting is immaterial. Exchange differences are recognized in profit or loss. Interest income is calculated by applying the effective interest rate to the gross carrying amount of such financial assets. c) Investments in equity instruments at FVOCI On initial recognition, the Company may make an irrevocable election to designate investments in equity instruments as at FVOCI. Designation at FVOCI is not permitted if the equity investment is held for trading or if it is contingent consideration recognized by an acquirer in a business combination. Investments in equity instruments at FVOCI are subsequently measured at fair value with gains and losses arising from changes in fair value recognized in other comprehensive income and accumulated in other equity. The cumulative gain or loss will not be reclassified to profit or loss on disposal of the equity investments. Instead, it will be transferred to retained earnings. Dividends on these investments in equity instruments are recognized in profit or loss when the Company’s right to receive the dividends is established, unless the dividends clearly represent a recovery of part of the cost of the investment. 2) Impairment of financial assets and contract assets The Company recognizes a loss allowance for expected credit losses on financial assets at amortized cost (including accounts receivable) and contract assets. The Company recognizes lifetime Expected Credit Loss (ECL) for accounts receivable and contract a |
Critical Accounting Judgments a
Critical Accounting Judgments and Key Sources of Estimation, Uncertainty and Assumption | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Accounting Judgements And Estimates [Abstract] | |
Critical Accounting Judgments and Key Sources of Estimation, Uncertainty and Assumption | 4. CRITICAL ACCOUNTING JUDGMENTS AND KEY SOURCES OF ESTIMATION, UNCERTAINTY AND ASSUMPTION In the application of the Company’s accounting policies, the management is required to make judgments, estimates and assumptions which are based on historical experience and other factors that are not readily apparent from other sources. Actual results may differ from these estimates. The estimates and underlying assumptions are reviewed by the management on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period or in the period of the revision and future periods if the revision affects both current and future periods. a. Critical accounting judgments 1)Revenue recognition The Company’s project agreements are mainly to provide one or more customized equipment or services to customers. In order to fulfill the agreements, another party may be involved in some agreements. The Company considers the following factors to determine whether the Company is a principal of the transaction: whether the Company is the primary obligation provider of the agreements, its exposures to inventory risks and the discretion in establishing prices, etc. The determination of whether the Company is a principal or an agent will affect the amount of revenue recognized by the Company. Only when the Company is acting as a principal, gross inflows of economic benefits arising from transactions is recognized as revenue. 2) Control over subsidiaries As discussed in Note 3, “Summary of Significant Accounting Policies - Basis of Consolidation”, some entities are subsidiaries of the Company although the Company only owns less than 50% ownership interests in these entities. After considering the Company’s absolute size of holding in the entity and the relative size of and the dispersion of shares owned by the other stockholders, and the contractual arrangements between the Company and other investors, potential voting interests and the written agreement between stockholders, the management concluded that the Company has a sufficiently dominant voting interest to direct the relevant activities of the entity and to have control over the governance of the entity and therefore the Company has control over these entities. b . Key sources of estimation uncertainty and assumption The following are the key assumptions concerning the future, and other key sources of estimation uncertainty at the end of the reporting period. Actual results may differ from these estimates. 1) Impairment of trade notes and accounts receivable The provision for impairment of trade notes and accounts receivable is based on assumptions on probability of default and expected credit loss rates. The Company uses judgment in making these assumptions and in selecting the inputs to the impairment calculation, based on the Company’s past experience, current market conditions as well as forward looking information at the end of each reporting period. For details of the key assumptions and inputs used, see Note 10. Where the actual future cash flows are less than expected, a material impairment loss may arise. 2) Fair value measurements and valuation processes For the assets and liabilities measured at fair value without quoted prices in active markets, the Company’s management determines the appropriate valuation techniques for the fair value measurements and whether to engage third party qualified appraisers based on the related regulations and professional judgments. Information about the valuation techniques and inputs used in determining the fair value of various assets and liabilities was disclosed in Note 38. If the actual changes of inputs in the future differ from expectation, the fair value may vary accordingly. The Company updates inputs periodically to monitor the appropriateness of the fair value measurement. 3) Provision for inventory valuation and obsolescence Inventories are stated at the lower of cost or net realizable value. Estimates of net realizable value are based on the most reliable evidence available at the time the estimates are made at the end of reporting period. These estimates take into consideration fluctuations of price or cost directly relating to events occurring after the end of the period to the extent that such events confirm conditions existing at the end of the period. Inventory write-downs are determined on an item by item basis, except for those similar items which could be categorized into the same groups. The Company uses the inventory holding period and turnover as the evaluation basis for inventory obsolescence losses. 4) Impairment of property, plant and equipment, right-of-use assets, investment properties and intangible assets In the process of evaluating the potential impairment of tangible and intangible assets, the Company is required to consider internal and external indicators of impairment and make subjective judgments in determining the independent cash flows, useful lives, expected future revenue and expenses related to the specific asset groups within the context of the telecommunication industry. Any changes in these estimates based on changed economic conditions or business strategies could result in significant impairment charges in future periods. 5) Useful lives of property, plant and equipment As discussed in Note 3, “Summary of Significant Accounting Policies - Property, Plant and Equipment”, the Company reviews estimated useful lives of property, plant and equipment at the end of each year. 6) Recognition and measurement of defined benefit plans Net defined benefit liabilities (assets) and the resulting pension expense under defined benefit pension plans are calculated using the Projected Unit Credit Method. Actuarial assumptions comprise the discount rate, employee turnover rate, average future salary increase and etc. Changes in economic circumstances and market conditions will affect these assumptions and may have a material impact on the amount of the expense and the liability. 7) Lessees’ incremental borrowing rates In determining a lessee’s incremental borrowing rate used in discounting lease payments, a risk-free rate for relevant duration and the same currency is selected as a reference rate. The lessee’s credit spread adjustments and lease specific adjustments are also taken into account. |
Application of New and Amended
Application of New and Amended International Financial Reporting Standards | 12 Months Ended |
Dec. 31, 2021 | |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Abstract] | |
Application of New and Amended International Financial Reporting Standards | 5. APPLICATION OF NEW AND AMENDED INTERNATIONAL FINANCIAL REPORTING STANDARDS Amendments to IFRSs and the New Interpretation That Are Mandatorily Effective for the Current Year The Company has applied Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16: Interest Rate Benchmark Reform-phase 2. The application of these amendments has had no impact on the disclosures or amounts recognized in the Company’s consolidated financial statements. New and Amended IFRSs in Issue But Not Yet Effective The Company has not applied the following new and amended IFRSs that have been issued but are not yet effective. New or Amended Standards and Interpretations Effective Date Issued by IASB (Note 1) Amendments to IFRSs Annual Improvements to IFRS Standards 2018-2020 January 1, 2022 (Note 2) Amendments to IFRS 3 Reference to the Conceptual Framework January 1, 2022 (Note 3) Amendments to IAS 16 Property, Plant and Equipment - Proceeds before Intended Use January 1, 2022 (Note 4) Amendments to IAS 37 Onerous Contracts - Cost of Fulfilling a Contract January 1, 2022 (Note 5) Amendments to IFRS 10 and IAS 28 Sale or Contribution of Assets between An Investor and Its Associate or Joint Venture To be determined by IASB Amendments to IAS 1 Classification of liabilities as current or noncurrent January 1, 2023 Amendments to IAS 1 Disclosure of Accounting Policies January 1, 2023 (Note 6) Amendments to IAS 8 Definition of Accounting Estimates January 1, 2023 (Note 7) Amendments to IAS 12 Deferred Tax related to Assets and Liabilities arising from a Single Transaction January 1, 2023 (Note 8) Note 1: The aforementioned new or amended standards or interpretations are effective after fiscal year beginning on or after the effective dates, unless specified otherwise. Note 2: The amendments to IFRS 9 are applied prospectively to financial liabilities that are exchanged or modified on or after the annual reporting periods beginning on or after January 1, 2022. Note 3: The amendments are applicable to business combinations for which the acquisition date is on or after the annual reporting period beginning on or after January 1, 2022. Note 4: The amendments are applicable to property, plant and equipment that are brought to the location and condition necessary for them to be capable of operating in the manner intended by management on or after January 1, 2021. Note 5: The amendments are applicable to contracts for which the entity has not yet fulfilled all its obligations on January 1, 2022. Note 6: The amendments will be applied prospectively for annual reporting periods beginning on or after January 1, 2023. Note 7: The amendments are applicable to changes in accounting estimates and changes in accounting policies that occur on or after the beginning of the annual reporting period beginning on or after January 1, 2023. Note 8: Except that deferred taxes will be recognized for temporary differences associated with leases and decommissioning obligations on January 1, 2022, the amendments will be applied prospectively to transactions that occur on or after January 1, 2022. The application of “Amendments to IFRSs: Annual Improvements to IFRS Standards 2018-2020”, “Amendments to IFRS 3: Reference to the Conceptual Framework”, “Amendments to IAS 16: Property, Plant and Equipment - Proceeds before Intended Use” and “Amendments to IAS 37: Onerous Contracts - Cost of Fulfilling a Contract” will not have material impact on the Company’s consolidated financial statements. As of the date the consolidated financial statements were authorized for issue, the Company is continuously assessing whether the application of “Amendments to IFRS 10 and IAS 28: Sale or Contribution of Assets between An Investor and Its Associate or Joint Venture”, “Amendments to IAS 1: Classification of liabilities as current or noncurrent”, “Amendments to IAS 1: Definition of Accounting Policies”, “Amendments to IAS 8: Definition of Accounting Estimates”, and “Amendments to IAS 12: Deferred Tax related to Assets and Liabilities arising from a Single Transaction” will have the impact on the Company’s financial position and operating result. The Company will disclose the relevant impact when the assessment is completed . |
U.S. Dollar Amounts
U.S. Dollar Amounts | 12 Months Ended |
Dec. 31, 2021 | |
Foreign Exchange Rates [Abstract] | |
U.S. Dollar Amounts | 6 . U.S. DOLLAR AMOUNTS The Company maintains its accounts and expresses its consolidated financial statements in New Taiwan dollars. For readers’ convenience only, U.S. dollar amounts presented in the accompanying consolidated financial statements have been translated from New Taiwan dollars as set forth in the statistical release of the Federal Reserve Board of the United States as of December 30, 2021, which was NT$27.74 to US$1.00. The convenience translations should not be construed as representations that the New Taiwan dollar amounts have been, could have been, or could in the future be, converted into U.S. dollars at this or any other rate of exchange. |
Cash and Cash Equivalents
Cash and Cash Equivalents | 12 Months Ended |
Dec. 31, 2021 | |
Cash And Cash Equivalents [Abstract] | |
Cash and Cash Equivalents | 7. CASH AND CASH EQUIVALENTS December 31 2020 2021 NT$ NT$ (In Millions) Cash Cash on hand $ 487 $ 440 Bank deposits 10,961 15,647 11,448 16,087 Cash equivalents (with maturities of less than three months) Commercial papers $ 14,061 $ 13,530 Negotiable certificates of deposit 2,600 7,500 Time deposits 2,308 2,657 Stimulus vouchers 3 5 18,972 23,692 $ 30,420 $ 39,779 The annual yield rates of bank deposits, commercial papers, negotiable certificates of deposit and time deposits as of balance sheet dates were as follows: December 31 2020 2021 Bank deposits 0.00%-0.40% 0.00%-0.45% Commercial papers 0.14%-0.26% 0.17%-0.30% Negotiable certificates of deposit 0.24%-0.30% 0.27%-0.30% Time deposits 0.10%-3.60% 0.01%-3.60% |
Financial Instruments at Fair V
Financial Instruments at Fair Value Through Profit or Loss | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Financial Instruments At Fair Value Through Profit Or Loss [Abstract] | |
Financial Instruments at Fair Value Through Profit or Loss | 8. FINANCIAL INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS December 31 2020 2021 NT$ NT$ (In Millions) Financial assets-current Mandatorily measured at FVTPL Derivatives (not designated for hedge) Forward exchange contracts $ 2 $ — Non-derivatives Listed stocks - domestic 8 3 $ 10 $ 3 Financial assets-noncurrent Mandatorily measured at FVTPL Non-derivatives Non-listed stocks - domestic $ 441 $ 648 Non-listed stocks - foreign 236 237 Limited partnership - domestic — 24 $ 677 $ 909 Financial liabilities-current Held for trading Derivatives (not designated for hedge) Forward exchange contracts $ — $ 6 Outstanding forward exchange contracts not designated for hedge as of balance sheet dates were as follows: Maturity Contract Amount Currency Period (In Millions) December 31, 2020 Forward exchange contracts - buy NT$/EUR 2021.03 NT$50/EUR2 Forward exchange contracts - sell US$/NT$ 2021.02-03 US$14/NT379 December 31, 2021 Forward exchange contracts - buy NT$/EUR 2022.03 NT$257/EUR8 The Company entered into the above forward exchange contracts to manage its exposure to foreign currency risk due to fluctuations in exchange rates. However, the aforementioned derivatives did not meet the criteria for hedge accounting. |
Financial Assets at Fair Value
Financial Assets at Fair Value through Other Comprehensive Income Noncurrent | 12 Months Ended |
Dec. 31, 2021 | |
Noncurrent Financial Assets At Fair Value Through Other Comprehensive Income [Abstract] | |
Financial Assets at Fair Value through Other Comprehensive Income Noncurrent | 9. FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME - NONCURRENT December 31 2020 2021 NT$ NT$ (In Millions) Domestic investments Listed stocks $ 2,754 $ 459 Non-listed stocks 4,325 3,030 Foreign investments Non-listed stocks 114 127 $ 7,193 $ 3,616 The Company holds the above foreign and domestic stocks for medium to long-term strategic purposes and expects to profit from long-term investment. Accordingly, the management elected to designate these investments in equity instruments at FVOCI as they believe that recognizing short-term fair value fluctuations of these investments in profit or loss is not consistent with the Company’s strategy of holding these investments for long-term purposes. The Company holds Powtec Electro Chemical Corporation (“Powtec”) as financial assets at FVOCI. The Board of Directors of Powtec resolved in February 2020 to file a petition with court for the declaration of its bankruptcy which was adjudged by the court in April 2020. The Company evaluated and determined the fair value of such investment was nil after its declaration of bankruptcy and recognized related loss in the consolidated statements of comprehensive income for the year ended December 31, 2019. The Company disposed of its investment in China Airlines, Ltd. starting from December 2020 and sold all its shares by February 2021. The total fair value of the disposed investment were $568 million and $2,636 million in 2020 and 2021, respectively. The Company disposed of its investments in UUPON Inc. (UUPON) and Cotech Engineering Fuzhou Corp. in October and December 2021 and the fair value of the disposed investment were $1 million and $4 million, respectively. CHI obtained significant influence over AgriTalk Technology Inc. (“ATT”) and Imedtac Co., Ltd. (“IME”) in July 2021 and August 2021, respectively. Therefore, the aforementioned investments were reclassified from financial asset at FVOCI to associates at fair value of $19 million and $45 million, respectively. (Please refer to Note 15 (a)). The related unrealized gain on financial assets at FVOCI of $17 million and $60 million were transferred from other equity to retained earnings upon the aforementioned disposals in 2020 and 2021, respectively. CHI participated in the private placement of PChome Online Inc. in the amount of $200 million in October 2021. The Company recognized dividend income of $296 million and $246 million for the years ended December 31, 2019 and 2020, respectively, from the investments still held on December 31, 2019 and 2020. The Company recognized dividend income of $154.0 million for the year ended December 31, 2021, from the investments still held on December 31, 2021, of which $153.9 million was from the outstanding investments on December 31, 2021. |
Trade Notes and Accounts Receiv
Trade Notes and Accounts Receivable, Net | 12 Months Ended |
Dec. 31, 2021 | |
Trade notes and accounts receivable [Member] | |
Disclosure Of Financial Assets [Line Items] | |
Trade Notes and Accounts Receivable, Net | 1 0 . TRADE NOTES AND ACCOUNTS RECEIVABLE, NET December 31 2020 2021 NT$ NT$ (In Millions) Trade notes and accounts receivable $ 24,776 $ 25,552 Less: Loss allowance (2,154 ) (1,605 ) $ 22,622 $ 23,947 The main credit terms range from 30 to 90 days The Company serves a large consumer base for telecommunications business; therefore, the concentration of credit risk is limited. When having transactions with customers, the Company considers the record of arrears in the past. In addition, the Company may also collect some telecommunication charges in advance to reduce the payment arrears in subsequent periods. The Company adopted a policy of dealing with counterparties with certain credit ratings for project business and to obtain collateral where necessary to mitigate the risk of loss arising from defaults. Credit rating information is provided by independent rating agencies where available and, if such credit rating information is not available, the Company uses other publicly available financial information and its own historical transaction experience to rate its major customers. The Company continues to monitor the credit exposure and credit ratings of its counterparties and spread the credit risk amongst qualified counterparties. In order to mitigate credit risk, the management of the Company has delegated a team responsible for determining credit limits, credit approvals and other monitoring procedures to ensure the recoverability of receivables. In addition, the Company reviews the recoverable amount of receivables at balance sheet dates to ensure that adequate allowance is provided for possible irrecoverable amounts. In this regard, the management believes the Company’s credit risk could be reasonably reduced. The Company applies the simplified approach to providing for expected credit losses prescribed by IFRS 9, which permits the use of lifetime expected loss provision for receivables. The expected credit losses on receivables are estimated using a provision matrix by reference to past default experience of the customers and an analysis of the customers’ current financial positions, as well as the forward-looking indicators such as macroeconomic business indicators. When there is evidence indicating that the counterparty is in evasion, bankruptcy, deregistration of its company or the accounts receivable are over two years past due and the recoverable amount cannot be reasonable estimated, the Company writes off the trade notes and accounts receivable. For accounts receivable that have been written off, the Company continues to engage in enforcement activity to attempt to recover the receivables due. Where recoveries are made, these are recognized in profit or loss. Except for receivables arising from telecommunications business and project business, the Company’s remaining accounts receivable are limited. Therefore, only Chunghwa’s provision matrix arising from telecommunications business and project business is disclosed below: December 31, 2020 Not Past Due Past Due Less than 30 Days Pass Due 31 to 60 Days Pass Due 61 to 90 Days Pass Due 91 to 120 Days Pass Due 121 to 180 Days Pass Due over 180 Days Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Telecommunications business Expected credit loss rate (Note a) 0%-2% 2%-24% 3%-68% 11%-83% 28%-90% 52%-96% 100% Gross carrying amount $ 15,839 $ 204 $ 51 $ 31 $ 30 $ 25 $ 626 $ 16,806 Loss allowance (Lifetime ECL) (56 ) (21 ) (24 ) (25 ) (24 ) (21 ) (626 ) (797 ) Amortized cost $ 15,783 $ 183 $ 27 $ 6 $ 6 $ 4 $ — $ 16,009 Project business Expected credit loss rate (Note b) 0%-5% 5% 10% 30% 50% 80% 100% Gross carrying amount $ 3,473 $ 64 $ 27 $ 9 $ 2 $ 3 $ 1,288 $ 4,866 Loss allowance (Lifetime ECL) (20 ) (3 ) (3 ) (3 ) (1 ) (2 ) (1,288 ) (1,320 ) Amortized cost $ 3,453 $ 61 $ 24 $ 6 $ 1 $ 1 $ — $ 3,546 December 31, 2021 Not Past Due Past Due Less than 30 Days Pass Due 31 to 60 Days Pass Due 61 to 90 Days Pass Due 91 to 120 Days Pass Due 121 to 180 Days Pass Due over 180 Days Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Telecommunications business Expected credit loss rate (Note a) 0%-1% 1%-22% 3%-62% 11%-80% 25%-90% 49%-97% 100% Gross carrying amount $ 16,411 $ 282 $ 82 $ 45 $ 31 $ 31 $ 603 $ 17,485 Loss allowance (Lifetime ECL) (51 ) (23 ) (29 ) (30 ) (25 ) (28 ) (603 ) (789 ) Amortized cost $ 16,360 $ 259 $ 53 $ 15 $ 6 $ 3 $ — $ 16,696 Project business Expected credit loss rate (Note b) 0%-5% 5% 10% 30% 50% 80% 100% Gross carrying amount $ 3,988 $ — $ 7 $ 14 $ — $ 2 $ 770 $ 4,781 Loss allowance (Lifetime ECL) (8 ) — (1 ) (4 ) — (1 ) (770 ) (784 ) Amortized cost $ 3,980 $ — $ 6 $ 10 $ — $ 1 $ — $ 3,997 Note a: Please refer to Notes 31 and 45 for the information of disaggregation of telecommunications service revenue. The expected credit loss rate applicable to different business revenue varies so as to reflect the risk level indicating by factors like historical experience. Note b : The project business has different loss types according to the customer types. The expected credit loss rate listed above is for general customers. When the customer is a government-affiliated entity, it is anticipated that there will not be an instance of credit loss. Customers with past history of bounced checks or accounts receivable exceeding six months overdue are classified as high-risk customers, with an expected credit loss rate of 50%, increasing by period as the days overdue increase. Movements of loss allowance for trade notes and accounts receivable were as follows: Year Ended December 31 2020 2021 NT$ NT$ (In Millions) Beginning balance $ 2,360 $ 2,154 Add: Provision for credit loss 49 123 Add: Acquired by business combinations (Note 14) 2 — Less: Amounts written off (257 ) (672 ) Ending balance $ 2,154 $ 1,605 |
Inventories
Inventories | 12 Months Ended |
Dec. 31, 2021 | |
Classes Of Inventories [Abstract] | |
Inventories | 1 1 . INVENTORIES December 31 2020 2021 NT$ NT$ (In Millions) Merchandise $ 3,903 $ 4,070 Project in process 6,167 4,805 Work in process 126 145 Raw materials 137 224 10,333 9,244 Land held under development 1,999 1,999 Construction in progress 77 84 $ 12,409 $ 11,327 The operating costs related to inventories were $49,258 million, $53,847 million and $51,180 million for the years ended December 31, 2019, 2020 and 2021, respectively. For the years ended December 31, 2019, 2020 and 2021, valuation loss on inventories recognized as operating costs included the amounts of $475 million, $1,161 million and $207 million, respectively. As of December 31, 2020 and 2021, inventories of $2,076 million and $2,083 million, respectively, were expected to be recovered for a time period longer than twelve months. The aforementioned amount of inventories is related to property development owned by LED. Land held under development and construction in progress was mainly developed by LED for Qingshan Sec., Dayuan Dist., Taoyuan City project. The Board of Directors of LED resolved to sign a joint construction and separate sale contract with Farglory Land Development Co., Ltd. in June 2021. |
Prepayments
Prepayments | 12 Months Ended |
Dec. 31, 2021 | |
Prepayments [Abstract] | |
Prepayments | 1 2 . PREPAYMENTS December 31 2020 2021 NT$ NT$ (In Millions) Prepaid rents $ 2,864 $ 2,349 Others 1,656 1,779 $ 4,520 $ 4,128 Current Prepaid rents $ 652 $ 566 Others 1,654 1,764 $ 2,306 $ 2,330 Noncurrent Prepaid rents $ 2,212 $ 1,783 Others 2 15 $ 2,214 $ 1,798 Prepaid rents comprised the prepayments from the lease agreements applying the recognition exemption and the prepayments for leases that do not meet the definition of leases under IFRS 16. |
Other Current Monetary Assets
Other Current Monetary Assets | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Other Current Monetary Assets [Abstract] | |
Other Current Monetary Assets | 1 3 . OTHER CURRENT MONETARY ASSETS December 31 2020 2021 NT$ NT$ (In Millions) Time deposits and negotiable certificates of deposit with maturities of more than three months $ 4,596 $ 3,499 Others 1,528 1,562 $ 6,124 $ 5,061 The annual yield rates of time deposits and negotiable certificates of deposit with maturities of more than three months at the balance sheet dates were as follows: December 31 2020 2021 Time deposits and negotiable certificates of deposit with maturities of more than three months 0.07%-2.25% 0.03%-2.70% |
Subsidiaries
Subsidiaries | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Significant Investments In Subsidiaries [Abstract] | |
Subsidiaries | 1 4 . SUBSIDIARIES a. Information on subsidiaries with material noncontrolling interests The table below shows details of less than wholly owned subsidiaries of the Company that have material noncontrolling interests: Place of Incorporation Proportion of Ownership Interests and Voting Rights Held by Noncontrolling Interests and Principal December 31 Subsidiaries Place of Business 2020 2021 SENAO Taiwan 72% 72% CHPT Taiwan 66% 66% Profit Allocated to Noncontrolling Interests Accumulated Noncontrolling Interests Year Ended December 31 December 31 2019 2020 2021 2020 2021 NT$ NT$ NT$ NT$ NT$ (In Millions) SENAO $ 291 $ 312 $ 421 $ 4,189 $ 4,337 CHPT $ 414 $ 604 $ 588 4,606 4,933 Individually immaterial subsidiaries with noncontrolling interests 2,363 2,477 $ 11,158 $ 11,747 Summarized financial information in respect of SENAO and its subsidiaries that has material noncontrolling interests is set out below. The summarized financial information below represented amounts before intercompany eliminations. December 31 2020 2021 NT$ NT$ (In Millions) Current assets $ 6,834 $ 7,963 Noncurrent assets $ 3,194 $ 2,981 Current liabilities $ 3,854 $ 4,561 Noncurrent liabilities $ 416 $ 418 Equity attributable to the parent $ 1,569 $ 1,628 Equity attributable to noncontrolling interests $ 4,189 $ 4,337 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenues and income $ 29,131 $ 27,232 $ 31,302 Costs and expenses 28,725 26,797 30,715 Profit for the year $ 406 $ 435 $ 587 Profit attributable to the parent $ 115 $ 123 $ 166 Profit attributable to noncontrolling interests 291 312 421 Profit for the year $ 406 $ 435 $ 587 Other comprehensive income (loss) attributable to the parent $ (7 ) $ 1 $ 2 Other comprehensive income attributable to noncontrolling interests 22 2 5 Other comprehensive income for the year $ 15 $ 3 $ 7 Total comprehensive income attributable to the parent $ 108 $ 124 $ 168 Total comprehensive income attributable to noncontrolling interests 313 314 426 Total comprehensive income for the year $ 421 $ 438 $ 594 Net cash flow from operating activities $ 538 $ 862 $ 654 Net cash flow from investing activities 235 54 215 Net cash flow from financing activities (718 ) (687 ) (690 ) Effect of exchange rate changes on cash and cash equivalents — — — Net cash inflow $ 55 $ 229 $ 179 Dividends paid to noncontrolling interests $ 269 $ 269 $ 278 Summarized financial information in respect of CHPT and its subsidiaries that has material noncontrolling interests is set out below. The summarized financial information below represented amounts before intercompany eliminations. December 31 2020 2021 NT$ NT$ (In Millions) Current assets $ 4,122 $ 4,657 Noncurrent assets $ 4,013 $ 4,063 Current liabilities $ 1,115 $ 1,183 Noncurrent liabilities $ 12 $ 32 Equity attributable to CHI $ 2,402 $ 2,572 Equity attributable to noncontrolling interests $ 4,606 $ 4,933 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenues and income $ 3,404 $ 4,221 $ 4,254 Costs and expenses 2,775 3,301 3,360 Profit for the year $ 629 $ 920 $ 894 Profit attributable to CHI $ 215 $ 316 $ 306 Profit attributable to noncontrolling interests 414 604 588 Profit for the year $ 629 $ 920 $ 894 Other comprehensive loss attributable to CHI $ (1 ) $ — $ (1 ) Other comprehensive loss attributable to noncontrolling interests (2 ) — (2 ) Other comprehensive loss for the year $ (3 ) $ — $ (3 ) Total comprehensive income attributable to CHI $ 214 $ 316 $ 305 Total comprehensive income attributable to noncontrolling interests 412 604 586 Total comprehensive income for the year $ 626 $ 920 $ 891 Net cash flow from operating activities $ 507 $ 1,483 $ 1,090 Net cash flow from investing activities (1,426 ) (533 ) (519 ) Net cash flow from financing activities (349 ) (349 ) (414 ) Effect of exchange rate changes on cash and cash equivalents (5 ) 1 (1 ) Net cash inflow (outflow) $ (1,273 ) $ 602 $ 156 Dividends paid to noncontrolling interests $ 216 $ 216 $ 259 b. Equity transactions with noncontrolling interests CHIEF issued new shares in March 2019, November 2019, March 2020, December 2020, March 2021 and December 2021, as its employees exercised options. Therefore, the Company’s ownership interest in CHIEF decreased to 59.08% and 58.89% as of December 31, 2020 and 2021, respectively. See Note 35(b) for details. CHTSC issued new shares in February 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHTSC decreased to 77.46% as of December 31, 2021. See Note 35(c) for details. IISI issued new shares in September 2020 and January 2021 as its employees exercised options. Therefore, the Company’s ownership interest in IISI decreased to 51.20% and 51.02% as of December 31, 2020 and 2021, respectively. See Note 35(d) for details. SENAO subscribed for all the shares in the capital increase of Youth in April 2020; therefore, the Company’s ownership interest in Youth increased. The above transactions were accounted for as equity transactions since the Company did not cease to have control over these subsidiaries. The detailed information of the equity transactions for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 CHIEF Share-Based Payment NT$ (In Millions) Cash consideration received from noncontrolling interests $ 19 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (20 ) Differences arising from equity transactions $ (1 ) Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ (1 ) Year Ended December 31, 2020 CHIEF Share-Based Payment SENAO Not Proportionately Participating in the Capital Increase of Youth IISI Share-Based Payment NT$ NT$ NT$ (In Millions) Cash consideration received from noncontrolling interests $ 75 $ — $ 7 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (49 ) — (7 ) Differences arising from equity transactions $ 26 $ — $ — Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ 26 $ — $ — Year Ended December 31, 2021 CHIEF Share-Based Payment CHTSC Share-Based Payment IISI Share-Based Payment NT$ NT$ NT$ (In Millions) Cash consideration received from noncontrolling interests $ 29 $ 21 $ 4 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (17 ) (19 ) (1 ) Differences arising from equity transactions $ 12 $ 2 $ 3 Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ 12 $ 2 $ 3 c . Business combinations 1 ) Subsidiary acquired In order to develop and cultivate the enterprise customer market, Chunghwa obtained 20.38% ownership interest in IISI by cash on July 1, 2020, the acquisition date. (Note) Chunghwa’s ownership interest in IISI increased to 51.54% by considering the previously held ownership interest in IISI. Chunghwa obtained over half of the seats of the Board of Directors of IISI; therefore, Chunghwa gained control over IISI and included IISI and its subsidiaries in the consolidated financial statements starting from the acquisition date. IISI mainly engages in information system development and maintenance service business, etc. Note: 2) Assets acquired and liabilities assumed at acquisition date IISI and Its Subsidiaries Current assets Cash and cash equivalents $ 588 Contract assets 583 Trade notes and accounts receivable 165 Inventories 141 Prepayments 114 Other current monetary assets 114 Other current assets 75 Noncurrent assets Property, plant and equipment 48 Right-of-use assets 70 Intangible assets 12 Deferred income tax assets 6 Other noncurrent assets 102 Current liabilities Short-term loans (4 ) Contract liabilities (334 ) Trade notes and accounts payable (257 ) Current tax liabilities (19 ) Lease liabilities (26 ) Other payables (266 ) Provisions (15 ) Other current liabilities (30 ) Noncurrent liabilities Deferred income tax liabilities (3 ) Lease liabilities (45 ) Net defined benefit liabilities (32 ) Other noncurrent liabilities (5 ) $ 982 The trade notes and accounts receivable acquired in business combination transactions have a fair value of $165 million and a gross contractual amount of $167 million. The best estimate of the contractual cash flows not expected to be collected as of the acquisition date was $2 million. 3) Goodwill arising from acquisition IISI and Its Subsidiaries Consideration transferred $ 234 Add: Fair value of equity interest held before the acquisition date 327 Add: Noncontrolling interest (48.46% of the identifiable net assets of IISI 476 Less: Fair value of identifiable net assets acquired (982 ) Goodwill arising from acquisition $ 55 The goodwill arising from the acquisition of IISI mainly represents the control premium. In addition, the consideration paid for the combination included amounts attributed to the benefits of expected synergies and the assembled workforces of IISI. These benefits are not recognized separately from goodwill because they do not meet the recognition criteria for identifiable intangible assets. Goodwill arising from business combinations is not deductible for tax purposes. 4) Net cash inflow on acquisition of subsidiaries IISI and Its Subsidiaries Cash and cash equivalents acquired $ 588 Less: Consideration paid in cash (234 ) $ 354 5) Impact of acquisition on the financial results of the Company The financial results of the acquiree since the acquisition date to December 31, 2020 included in the consolidated statements of comprehensive income are as follows: IISI and Its Subsidiaries Revenue $ 1,348 Profit $ 68 Had the business combination been in effect at the beginning of the annual reporting period, the Company’s revenue and profit would have been $208,605 million and $34,747 million for the year ended December 31, 2020, respectively. This pro-forma information is for illustrative purposes only and is not necessarily an indication of revenue and results of operations of the Company that actually would have been achieved had the acquisition been completed on January 1, 2020, nor is it intended to be a projection of future results. In determining the pro-forma revenue and profit of the Company had IISI been acquired at the beginning of the financial year, the management calculated amortization of intangible assets acquired on the basis of the fair values arising in the initial accounting for the business combination rather than the carrying amounts recognized in the pre-acquisition financial statements. |
Investments Accounted for Using
Investments Accounted for Using Equity Method | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure In Investments In Associates And Joint Ventures [Abstract] | |
Investments Accounted for Using Equity Method | 1 5 . INVESTMENTS ACCOUNTED FOR USING EQUITY METHOD December 31 2020 2021 NT$ NT$ (In Millions) Investments in associates $ 6,685 $ 7,127 Investment in joint venture 10 10 $ 6,695 $ 7,137 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 The Company invested and obtained 50% ownership interest in CPFI. However, as the Company has only two out of five seats of the Board of Directors of CPFI and has no control but significant influence over CPFI. Therefore, the Company recognized CPFI as an investment in associate. The Company invested and obtained 49% ownership interest in CVC. However, as the Company has only two out of five seats of the Board of Directors of CVC and has no control but significant influence over CVC. Therefore, the Company recognized CVC as an investment in associate. The participation of establishing NCB was approved by Chunghwa’s Board of Directors in January 2019. The establishment of NCB was approved by the Financial Supervisory Commission in July 2019 and the incorporation of NCB was approved by the ROC’s Ministry of Economic Affairs Department of Commerce in January 2020. Chunghwa prepaid investment funds to NCB in February and November 2019 amounting to $4,190 million, for ownership interest of 41.90%. Although Chunghwa is the single largest stockholder of NCB, it only obtained six out of fifteen seats of the Board of Directors of NCB. In addition, the management considered the size of ownership interest and the dispersion of shares owned by the other stockholders, other holdings are not extremely dispersed. Chunghwa is not able to direct its relevant activities. Therefore, Chunghwa does not have control over NCB and merely has significant influence over NCB and treat s it as an associate . NCB mainly engages in online banking business in Taiwan . IISI issued new shares in March, September 2019 and April 2020, as its employees exercised options; therefore, the Company’s ownership interest in IISI decreased to 31.47% and 31.16% as of December 31, 2019 and June 30, 2020, respectively. Chunghwa’s Board of Directors approved the investment of 20.58% ownership interest in IISI in January 2020 and the equity transaction was completed on July 1, 2020 (“acquisition date”). As the business combination was achieved in stages, the Company remeasured the previously held equity interest of IISI and recognized gain on disposal of $1 million under “other gains and losses” on the consolidated statements of comprehensive income. The Company treated IISI as a subsidiary starting from the acquisition date and included IISI and its subsidiaries in the consolidated financial statements. Please refer to Note 14(c). The Company disposed some shares of KWT in April 2019 before KWT traded its shares on the General Stock Market of the Taipei Exchange according to the local requirements and recognized gain on disposal of $151 million. The Company disposed of all shares of MeWorks in September 2020. UUPON reduced 95.44% of its capital to offset accumulated deficits in September 2020 and the Company did not participate in the capital increase of UUPON in October 2020. Therefore, the Company’s ownership interest in UUPON decreased to 5.36% and lost its significant influence over UUPON. Hence the Company discontinued to treat UUPON as an associate. Instead, the Company treated it as a financial asset at fair value through other comprehensive income and recognized gain on disposal of $15 million under “other gains and losses” on the consolidated statements of comprehensive income. The Company invested $274 million and obtained 20.33% ownership interest by participating in the capital increase of WATC in March 2021. WATC mainly engages in software solution integration. The Company invested $56 million and obtained 40.00% ownership interest in CISG in June 2021. CISG mainly engages in investment business. The Company owns 14% equity shares of ADT. Considering the seats that the Company controls in the Board of Directors of ADT and the relative size of ownership interest and the dispersion of shares owned by the other stockholders, the Company has significant influence over ADT. ADT completed its liquidation in August 2021. The Company received the liquidation distribution of $9 million and recognized gain on disposal of $4 million under “other gains and losses” on the consolidated statements of comprehensive income. The Company invested and obtained 17.19% ownership interest in ATT. The Company originally treated it as a financial asset at FVOCI. However, as the Company obtained one out of three seats of the Board of Directors of ATT in July 2021 and has significant influence over ATT, the Company reclassified it as an associate. The Company invested and obtained 7.54% ownership interest in IME. The Company originally treated it as a financial asset at FVOCI. However, as the Company obtained one out of five seats of the Board of Directors of IME in August 2021 and has significant influence over IME, the Company reclassified it as an associate. IME issued new shares in December 2021 as its employees exercised options; therefore, the Company’s ownership interest in IME decreased to 6.74% as of December 31, 2021. b. Investment in joint venture The Company invested $10 million to establish a joint venture, CHT SEA, with Delta Electronics, Inc. and Kwang Hsing Industrial Co., Ltd. in December 2020 and obtained 51% ownership interest of CHT SEA. However, according to the mutual agreements among stockholders, the Company does not individually direct CHT SEA’s relevant activities and has joint control with the other party; therefore, the Company treated CHT SEA as a 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 $ — $ — |
Property, Plant and Equipment
Property, Plant and Equipment | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Property Plant And Equipment [Abstract] | |
Property, Plant and Equipment | 16. PROPERTY, PLANT AND EQUIPMENT December 31 2020 2021 NT$ NT$ (In Millions) Assets used by the Company $ 273,823 $ 281,849 Assets subject to operating leases 7,593 7,251 $ 281,416 $ 289,100 a. Assets used by the Company Land Land Improvements Buildings Computer Equipment Telecommuni- cations Equipment Transportation Equipment Miscellaneous Equipment Construction in Progress and Equipment to be Accepted Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Cost Balance on January 1, 2019 $ 100,355 $ 1,600 $ 69,328 $ 14,258 $ 711,863 $ 3,882 $ 9,874 $ 18,645 $ 929,805 Additions — — 1,221 57 120 1 149 21,612 23,160 Disposal (38 ) (7 ) (3 ) (1,916 ) (30,417 ) (51 ) (405 ) — (32,837 ) Effect of foreign exchange differences — — — — (37 ) — (1 ) (6 ) (44 ) Others (1,214 ) 25 455 606 24,503 80 473 (26,499 ) (1,571 ) Balance on December 31, 2019 $ 99,103 $ 1,618 $ 71,001 $ 13,005 $ 706,032 $ 3,912 $ 10,090 $ 13,752 $ 918,513 Accumulated depreciation and impairment Balance on January 1, 2019 $ — $ (1,337 ) $ (26,862 ) $ (12,143 ) $ (596,850 ) $ (3,651 ) $ (7,292 ) $ — $ (648,135 ) Depreciation expenses — (43 ) (1,301 ) (827 ) (23,906 ) (91 ) (688 ) — (26,856 ) Disposal — 6 3 1,909 30,380 51 402 — 32,751 Impairment losses — — — — — — (64 ) (29 ) (93 ) Effect of foreign exchange differences — — — — 16 — 1 — 17 Others — (1 ) 183 (7 ) 22 (3 ) (21 ) — 173 Balance on December 31, 2019 $ — $ (1,375 ) $ (27,977 ) $ (11,068 ) $ (590,338 ) $ (3,694 ) $ (7,662 ) $ (29 ) $ (642,143 ) Balance on January 1, 2019, net $ 100,355 $ 263 $ 42,466 $ 2,115 $ 115,013 $ 231 $ 2,582 $ 18,645 $ 281,670 Balance on December 31, 2019, net $ 99,103 $ 243 $ 43,024 $ 1,937 $ 115,694 $ 218 $ 2,428 $ 13,723 $ 276,370 Cost Balance on January 1, 2020 $ 99,103 $ 1,618 $ 71,001 $ 13,005 $ 706,032 $ 3,912 $ 10,090 $ 13,752 $ 918,513 Additions 67 — 18 55 118 1 150 24,786 25,195 Disposal (270 ) (19 ) (49 ) (1,245 ) (20,619 ) (45 ) (520 ) (29 ) (22,796 ) Effect of foreign exchange differences — — — — (91 ) — — (7 ) (98 ) Acquired by business combinations (Note 14) — — — 70 — — 72 — 142 Others 3,091 31 (81 ) 521 25,336 26 508 (29,973 ) (541 ) Balance on December 31, 2020 $ 101,991 $ 1,630 $ 70,889 $ 12,406 $ 710,776 $ 3,894 $ 10,300 $ 8,529 $ 920,415 (Continued) Land Land Improvements Buildings Computer Equipment Telecommuni- cations Equipment Transportation Equipment Miscellaneous Equipment Construction in Progress and Equipment to be Accepted Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Accumulated depreciation and impairment Balance on January 1, 2020 $ — $ (1,375 ) $ (27,977 ) $ (11,068 ) $ (590,338 ) $ (3,694 ) $ (7,662 ) $ (29 ) $ (642,143 ) Depreciation expenses — (43 ) (1,366 ) (770 ) (23,994 ) (68 ) (666 ) — (26,907 ) Disposal — 19 49 1,243 20,600 45 504 29 22,489 Effect of foreign exchange differences — — — — 41 — — — 41 Acquired by business combinations (Note 14) — — — (40 ) — — (54 ) — (94 ) Others — — 47 (4 ) 28 (1 ) (48 ) — 22 Balance on December 31, 2020 $ — $ (1,399 ) $ (29,247 ) $ (10,639 ) $ (593,663 ) $ (3,718 ) $ (7,926 ) $ — $ (646,592 ) Balance on December 31, 2020, net $ 101,991 $ 231 $ 41,642 $ 1,767 $ 117,113 $ 176 $ 2,374 $ 8,529 $ 273,823 Cost Balance on January 1, 2021 $ 101,991 $ 1,630 $ 70,889 $ 12,406 $ 710,776 $ 3,894 $ 10,300 $ 8,529 $ 920,415 Additions — — 37 72 84 — 198 35,222 35,613 Disposal — (1 ) (29 ) (1,734 ) (27,916 ) (84 ) (470 ) — (30,234 ) Effect of foreign exchange differences — — — — (64 ) — (2 ) (6 ) (72 ) Others 654 33 461 473 30,654 117 783 (32,959 ) 216 Balance on December 31, 2021 $ 102,645 $ 1,662 $ 71,358 $ 11,217 $ 713,534 $ 3,927 $ 10,809 $ 10,786 $ 925,938 Accumulated depreciation and impairment Balance on January 1, 2021 $ — $ (1,399 ) $ (29,247 ) $ (10,639 ) $ (593,663 ) $ (3,718 ) $ (7,926 ) $ — $ (646,592 ) Depreciation expenses — (43 ) (1,401 ) (716 ) (24,802 ) (65 ) (701 ) — (27,728 ) Disposal — 1 29 1,724 27,900 84 466 — 30,204 Effect of foreign exchange differences — — — — 31 — 1 — 32 Others — (1 ) 41 (1 ) 1 — (45 ) — (5 ) Balance on December 31, 2021 $ — $ (1,442 ) $ (30,578 ) $ (9,632 ) $ (590,533 ) $ (3,699 ) $ (8,205 ) $ — $ (644,089 ) Balance on December 31, 2021, net $ 102,645 $ 220 $ 40,780 $ 1,585 $ 123,001 $ 228 $ 2,604 $ 10,786 $ 281,849 (Concluded) CHPT evaluated that certain miscellaneous equipment, construction in progress and equipment to be accepted used for manufacturing specific PCB will not be used in the future and there was no active market for sale; therefore, CHPT determined that the recoverable amount of such assets was nil and recognized impairment losses of $89 million for the year ended December 31, 2019. CHSI evaluated that certain miscellaneous equipment will not be used in the future and there was no active market for sale; therefore, CHSI determined that the recoverable amount of such assets was nil and recognized impairment losses of $4 million for the year ended December 31, 2019. The aforementioned impairment losses were included in other income and expenses of statements of comprehensive income . There was no indication that property, plant and equipment was impaired; therefore, the Company did not recognize any impairment loss for the years ended December 31, 2020 and 2021. Chunghwa signed a joint development agreement with the MOTC previously which stated that the MOTC would provide the national land and Chunghwa would be in charge of the planning and construction for the MOTC’s office building, Chunghwa’s Renai office building, etc. According to the agreement, the MOTC and Chunghwa would each own a certain percentage of the buildings, and Chunghwa is to pay or get the reimbursement for the difference between the assessed value of the land and the construction cost paid by Chunghwa on behalf of the MOTC. The difference amounting to $1,057 million due to the MOTC was reported to Chunghwa’s Board of Directors in May 2020. Chunghwa paid the aforementioned amount in May 2021 and the property registration of the respective asset was completed in July 2021. The Company participated in the government-led urban renewal project in Xingzheng Section, Xindian District, New Taipei City. The Company provided land as a building lot while Kindom Development Corp., chosen through public selection by the New Taipei City Government, acted as the urban renewal developer. The property registration was completed in 2020. With respect to the Company’s trade-in share of land and buildings, only the trade-in buildings had commercial substance. Therefore, the gain on the asset exchange transaction of $1,268 million (included in “gains and losses on disposal of property, plant and equipment”) was recognized at the difference between the carrying amount of the trade-out land of $37 million and the fair value of trade-in buildings of $1,305 million (included in “investment properties”). The aforementioned gain on disposal was included under “other income and expenses” in the consolidated statements of comprehensive income. Depreciation expense for assets used by the Company is computed using the straight-line method over the following estimated service lives: Land improvements 10-30 years Buildings Main buildings 20-60 years Other building facilities 3-15 years Computer equipment 1-8 years Telecommunications equipment Telecommunication circuits 2-30 years Telecommunication machinery and antennas equipment 2-30 years Transportation equipment 3-10 years Miscellaneous equipment Leasehold improvements 1-9 years Mechanical and air conditioner equipment 3-16 years Others 1-15 years b. Assets subject to operating leases Land Land Improvements Buildings Total NT$ NT$ NT$ NT$ (In Millions) Cost Balance on January 1, 2019 $ 3,617 $ 1 $ 3,583 $ 7,201 Additions — — 4 4 Transferred from (to) assets used by the Company 1,362 (1 ) 255 1,616 Balance on December 31, 2019 $ 4,979 $ — $ 3,842 $ 8,821 Accumulated depreciation and impairment Balance on January 1, 2019 $ — $ (1 ) $ (1,265 ) $ (1,266 ) Depreciation expenses — — (74 ) (74 ) Transferred to (from) assets used by the company — 1 (158 ) (157 ) Balance on December 31, 2019 $ — $ — $ (1,497 ) $ (1,497 ) Balance on January 1, 2019, net $ 3,617 $ — $ 2,318 $ 5,935 Balance on December 31, 2019, net $ 4,979 $ — $ 2,345 $ 7,324 Cost Balance on January 1, 2020 $ 4,979 $ — $ 3,842 $ 8,821 Others (6 ) — 394 388 Balance on December 31, 2020 $ 4,973 $ — $ 4,236 $ 9,209 Accumulated depreciation and impairment Balance on January 1, 2020 $ — $ — $ (1,497 ) $ (1,497 ) Depreciation expenses — — (82 ) (82 ) Others — — (37 ) (37 ) Balance on December 31, 2020 $ — $ — $ (1,616 ) $ (1,616 ) Balance on December 31, 2020, net $ 4,973 $ — $ 2,620 $ 7,593 Cost Balance on January 1, 2021 $ 4,973 $ — $ 4,236 $ 9,209 Others (164 ) — (102 ) (266 ) Balance on December 31, 2021 $ 4,809 $ — $ 4,134 $ 8,943 Accumulated depreciation and impairment Balance on January 1, 2021 $ — $ — $ (1,616 ) $ (1,616 ) Depreciation expenses — — (77 ) (77 ) Others — — 1 1 Balance on December 31, 2021 $ — $ — $ (1,692 ) $ (1,692 ) Balance on December 31, 2021, net $ 4,809 $ — $ 2,442 $ 7,251 The Company leases out land and buildings with lease terms between 1 to 20 years The future aggregate lease collection under operating lease for the freehold plant, property and equipment was as follows: December 31 2020 2021 NT$ NT$ (In Millions) Year 1 $ 347 $ 371 Year 2 288 301 Year 3 231 210 Year 4 164 159 Year 5 125 135 Onwards 1,180 1,177 $ 2,335 $ 2,353 The above items of property, plant and equipment subject to operating leases are depreciated on a straight-line basis over their estimated useful lives as follows: Land improvements 10-30 years Buildings Main buildings 35-60 years Other building facilities 3-15 years |
Lease Arrangements
Lease Arrangements | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Quantitative Information About Leases For Lessee [Abstract] | |
Lease Arrangements | 17. LEASE ARRANGEMENTS a. December 31 2020 2021 NT$ NT$ (In Millions) Land and buildings Handsets base stations $ 7,096 $ 6,988 Others 1,708 1,538 Equipment 2,205 2,525 $ 11,009 $ 11,051 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Additions to right-of-use assets $ 3,803 $ 3,796 $ 4,669 Depreciation charge for right-of-use assets Land and buildings Handsets base stations $ 2,728 $ 2,729 $ 2,789 Others 821 786 786 Equipment 419 416 410 $ 3,968 $ 3,931 $ 3,985 Chunghwa entered into a contract with ST-2 Satellite Ventures Pte., Ltd. to lease capacity on the ST-2 satellite. However, certain frequency that ST-2 satellite originally used was transferred for the use of 5G spectrum to the government, Chunghwa evaluated and determined that the recoverable amount of the related right-of-use assets was nil. Therefore, Chunghwa recognized an impairment loss of $420 million for the year ended December 31, 2021. The impairment loss was included under “other income and expenses” in the consolidated statement of comprehensive income. The Company did not have impairment of right-of-use assets for the years ended December 31, 2019 and 2020. The Company did not have significant sublease of right-of-use assets for the years ended December 31, 2019, 2020 and 2021. b. December 31 2020 2021 NT$ NT$ (In Millions) Lease liabilities Current $ 3,382 $ 3,211 Noncurrent 6,215 7,062 $ 9,597 $ 10,273 Ranges of discount rates for lease liabilities were as follows: December 31 2020 2021 Land and buildings Handsets base stations 0.46%-1.18% 0.37%-1.18% Others 0.46%-9.00% 0.37%-9.00% Equipment 0.46%-2.99% 0.37%-2.99% c. The Company mainly enters into lease-in agreements of land and buildings for handsets base stations located throughout Taiwan with lease terms ranging from 1 to 20 years. The lease agreements do not contain bargain purchase options to acquire the assets at the expiration of the respective leases. For majority of the lease-in agreements on handsets base station, the Company has the right to terminate the agreement prior to the expiration date if the Company is unable to build the required telecommunication equipment, either due to legal restrictions, controversial events, or other events. The Company also leases land and buildings for the use of offices, server rooms, and stores with lease terms from 1 to 30 years. Most of the lease agreements for national land adjust the lease payment according to the changes of the announced land values by the authority. At the expiry of the lease term, the Company does not have bargain purchase options to acquire the assets. The lease agreements for equipment include a contract between Chunghwa and ST-2 Satellite Ventures Pte., Ltd. to lease capacity on the ST-2 satellite. For the information of lease agreements with related parties, please refer to Note 40 to the consolidated financial statements for details. d. Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Expenses relating to low-value asset leases $ 7 $ 8 $ 8 Expenses relating to variable lease payments not included in the measurement of lease liabilities $ 6 $ 5 $ 7 Total cash outflow for leases $ 3,826 $ 3,776 $ 3,813 The Company leases certain equipment which qualifies as low-value asset leases. The Company has elected to apply the recognition exemption and, thus, not to recognize right-of-use assets and lease liabilities for these leases . Lease-out arrangements under operating leases for freehold property, plant, and equipment and investment properties were set out in Notes 16 and 18 to the consolidated financial statements. |
Investment Properties
Investment Properties | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Investment Property [Abstract] | |
Investment Properties | 18. INVESTMENT PROPERTIES December 31 2020 2021 NT$ NT$ (In Millions) Carrying amount Investment properties $ 9,621 $ 9,663 Investment Properties NT$ (In Millions) Cost Balance on January 1, 2019 $ 9,392 Additions 1 Disposal (6 ) Reclassification (173 ) Balance on December 31, 2019 $ 9,214 Accumulated depreciation and impairment Balance on January 1, 2019 $ (1,105 ) Depreciation expense (25 ) Disposal 6 Reclassification 22 Reversal of impairment loss 57 Balance on December 31, 2019 $ (1,045 ) Balance on January 1, 2019, net $ 8,287 Balance on December 31, 2019, net $ 8,169 Cost Balance on January 1, 2020 $ 9,214 Additions (Note 16) 1,359 Disposal (37 ) Reclassification 126 Balance on December 31, 2020 $ 10,662 Accumulated depreciation and impairment Balance on January 1, 2020 $ (1,045 ) Depreciation expense (22 ) Reclassification (1 ) Reversal of impairment loss 27 Balance on December 31, 2020 $ (1,041 ) Balance on December 31, 2020, net $ 9,621 Cost Balance on January 1, 2021 $ 10,662 Additions 1 Balance on December 31, 2021 $ 10,663 Accumulated depreciation and impairment Balance on January 1, 2021 $ (1,041 ) Depreciation expense (42 ) Reversal of impairment loss 83 Balance on December 31, 2021 $ (1,000 ) Balance on December 31, 2021, net $ 9,663 After the evaluation of land and buildings, the Company concluded the recoverable amount which represented the fair value less costs to sell of some land and buildings was higher than the carrying amount. Therefore, the Company recognized reversal of impairment losses of $57 million, $27 million and $83 million for the years ended December 31, 2019, 2020 and 2021, respectively, and the amounts were recognized only to the extent of impairment losses that had been recognized in prior years. The reversal of impairment loss was included in other income and expenses in the consolidated statements of comprehensive income. Depreciation expense is computed using the straight-line method over the following estimated service lives: Land improvements 10-30 years Buildings Main buildings 35-60 years Other building facilities 4-10 years The fair values of the Company’s investment properties as of December 31, 2020 and 2021 were determined by Level 3 fair value measurements inputs based on the appraisal reports conducted by independent appraisers. Those appraisal reports are based on the comparison approach, income approach or cost approach. Key assumptions and the fair values were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Fair value $ 22,644 $ 25,548 Overall capital interest rate 0.93%-3.03% 0.91%-3.05% Profit margin ratio 12%-20% 8%-20% Discount rate — — Capitalization rate 0.73%-2.20% 0.53%-2.11% All of the Company’s investment properties are held under freehold interest. The future aggregate lease collection under operating lease for investment properties is as follows: December 31 2020 2021 NT$ NT$ (In Millions) Year 1 $ 115 $ 107 Year 2 95 82 Year 3 75 62 Year 4 53 55 Year 5 38 39 Onwards 58 78 $ 434 $ 423 |
Intangible Assets
Intangible Assets | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Intangible Assets [Abstract] | |
Intangible Assets | 19. INTANGIBLE ASSETS December 31 2020 2021 NT$ NT$ (In Millions) Carrying amount Mobile Broadband Concession $ 89,019 $ 82,820 Computer software 788 673 Goodwill 246 217 Others 232 235 $ 90,285 $ 83,945 Mobile Broadband Concession Computer Software Goodwill Others Total NT$ NT$ NT$ NT$ NT$ (In Millions) 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 differences — — — — — 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 differences — — — — — Balance on December 31, 2019 $ (14,293 ) $ (2,499 ) $ (36 ) $ (134 ) $ (16,962 ) Balance on January 1, 2019, net $ 49,512 $ 959 $ 209 $ 264 $ 50,944 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 differences — — — — — 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 differences — — — — — 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 Cost Balance on January 1, 2021 $ 108,338 $ 3,320 $ 291 $ 392 $ 112,341 Additions-acquired separately — 225 — 31 256 Disposal — (344 ) — (10 ) (354 ) Effect of foreign exchange differences — — — — — Others — 2 — — 2 Balance on December 31, 2021 $ 108,338 $ 3,203 $ 291 $ 413 $ 112,245 Accumulated amortization and impairment Balance on January 1, 2021 $ (19,319 ) $ (2,532 ) $ (45 ) $ (160 ) $ (22,056 ) Amortization expenses (6,199 ) (341 ) — (29 ) (6,569 ) Disposal — 343 — 11 354 Impairment losses — — (29 ) — (29 ) Effect of foreign exchange differences — — — — — Others — — — — — Balance on December 31, 2021 $ (25,518 ) $ (2,530 ) $ (74 ) $ (178 ) $ (28,300 ) Balance on December 31, 2021, net $ 82,820 $ 673 $ 217 $ 235 $ 83,945 For long-term business development, Chunghwa participated in the 5G mobile broadband license bidding hosted by the NCC and paid the deposit for 5G spectrum bidding amounting to $1,000 million (included in other assets) in October 2019. Chunghwa paid $48,373 million, including the aforementioned deposit, in February 2020 for the aforementioned license to obtain 90MHz in the 3.5GHz spectrum and 600MHz in the 28GHz spectrum. The concessions are granted and issued by the NCC. The concession fees are amortized using the straight-line method over the period from the date operations commence through the date the license expires or the useful life, whichever is shorter. The 4G concession fees will be fully amortized by December 2030 and December 2033, and 5G concession fees will be fully amortized by December 2040. The computer software is amortized using the straight-line method over the estimated useful lives of 1 to 10 years. Other intangible assets are amortized using the straight-line method over the estimated useful lives of 1 to 20 years. Goodwill is not amortized. SENAO evaluated the goodwill, license agreement and the trademark that arose in the acquisition of Youth and its subsidiaries at the end of each year. SENAO determined the smallest identifiable group of assets that generates cash inflows as single cash generating units by business type and evaluated the recoverable amount of those cash generating units by their value in use. The management of SENAO estimated the cash flow projections based on the financial budgets for the following five years. Discount rates were 12.3%, 12.1% and 12.1% as of December 31, 2019, 2020 and 2021, respectively and were used to calculate the recoverable amount of related cash generating units by discounting aforementioned cash flows. SENAO concluded the recoverable amount of the goodwill was lower than the carrying value and recognized impairment loss of $9 million, $9 million and $29 million for the years ended December 31, 2019, 2020 and 2021, respectively. In addition, SENAO concluded the recoverable amount of the license agreement and the trademark were lower than the carrying value and recognized impairment loss of $0.2 million for the year ended December 31, 2021. The aforementioned impairment losses were included in other income and expenses of consolidated statements of comprehensive income. |
Other Assets
Other Assets | 12 Months Ended |
Dec. 31, 2021 | |
Miscellaneous Assets [Abstract] | |
Other Assets | 20. OTHER ASSETS December 31 2020 2021 NT$ NT$ (In Millions) Spare parts $ 2,156 $ 2,836 Refundable deposits 2,009 1,971 Other financial assets 1,000 1,000 Others 2,450 2,035 $ 7,615 $ 7,842 Current Spare parts $ 2,156 $ 2,836 Others 193 143 $ 2,349 $ 2,979 Noncurrent Refundable deposits $ 2,009 $ 1,971 Other financial assets 1,000 1,000 Others 2,257 1,892 $ 5,266 $ 4,863 Other financial assets - noncurrent was Piping Fund. As part of the government’s effort to upgrade the existing telecommunications infrastructure, Chunghwa and other public utility companies were required by the ROC government to contribute to a Piping Fund administered by the Taipei City Government. This fund was used to finance various telecommunications infrastructure projects. Net assets of this fund will be returned proportionately after the project is completed. Chunghwa evaluated that certain other assets will not be used in the future and there was no active market for sale; therefore, the Company determined that the recoverable amount of such assets was nil and recognized impairment losses of $44 million for the year ended December 31, 2019. The aforementioned impairment loss was included in other income and expenses in the statements of comprehensive income. |
Hedging Financial Instruments
Hedging Financial Instruments | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Detailed Information About Hedging Instruments [Abstract] | |
Hedging Financial Instruments | 21. HEDGING FINANCIAL INSTRUMENTS Chunghwa’s hedge strategy is to enter into forward exchange contracts - buy to avoid its foreign currency exposure to certain foreign currency denominated equipment payments in the following six months. In addition, Chunghwa’s management considers the market condition to determine the hedge ratio and enters into forward exchange contracts with the banks to avoid the foreign currency risk. Chunghwa signed equipment purchase contracts with suppliers and entered into forward exchange contracts to avoid foreign currency risk exposure to Euro-denominated purchase commitments. Those forward exchange contracts were designated as cash flow hedges. When forecast purchases actually take place, basis adjustments are made to the initial carrying amounts of hedged items. For the hedges of highly probable forecast sales and purchases, as the critical terms (i.e. the notional amount, life and underlying) of the forward foreign exchange contracts and their corresponding hedged items are the same, the Company performs a qualitative assessment of effectiveness and it is expected that the value of the forward contracts and the value of the corresponding hedged items will systematically change in opposite direction in response to movements in the underlying exchange rates. The main source of hedge ineffectiveness in these hedging relationships is the effect of credit risks of the Company and the counterparty on the fair value of the forward exchange contracts. Such credit risks do not impact the fair value of the hedged item attributable to changes in foreign exchange rates. No other sources of ineffectiveness emerged from these hedging relationships. The following tables summarized the information relating to the hedges for foreign currency risk. December 31, 2019 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 84/EUR 2 2020.03 $ 33.66 Hedging financial assets (liabilities) $ — $ — $ (1 ) Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 1 $ — $ — December 31, 2020 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 201/ EUR 6 2021.03 $ 34.45 Hedging financial assets (liabilities) $ 2 $ — $ 2 Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (2 ) $ 2 $ — December 31, 2021 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 228/ EUR 7 2022.03 $ 32.54 Hedging financial assets (liabilities) $ — $ 8 $ (10 ) Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 10 $ (8 ) $ — Year ended December 31, 2019 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (1 ) $ — — $ (2 ) $ — Construction in progress and equipment to be accepted Other gains and losses Year ended December 31, 202 0 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 2 $ — — $ 21 $ — Construction in progress and equipment to be accepted Other gains and losses Year ended December 31, 2021 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (10 ) $ — — $ (43 ) $ — Construction in progress and equipment to be accepted Other gains and losses |
Short-Term Loans
Short-Term Loans | 12 Months Ended |
Dec. 31, 2021 | |
Short-term loans [Member] | |
Disclosure of detailed information about borrowings [Line Items] | |
Loans | 22. SHORT-TERM LOANS December 31 2020 2021 NT$ NT$ (In Millions) Unsecured bank loans $ 67 $ 65 The annual interest rates of bank loans were as follows: December 31 2020 2021 Unsecured bank loans 1.12%-2.33% 1.97%-2.43% |
Short-term Bills Payable
Short-term Bills Payable | 12 Months Ended |
Dec. 31, 2021 | |
Short Term Bills Payable [Abstract] | |
Short-term Bills Payable | 2 3 . SHORT-TERM BILLS PAYABLE December 31 2020 2021 NT$ NT$ (In Millions) Commercial paper payable $ 7,000 $ — Less: Discounts on commercial paper payable (1 ) $ — $ 6,999 $ — The annual interest rates of commercial paper payable were as follows: December 31 2020 2021 Commercial paper payable 0.34%-0.36% — |
Long-Term Loans
Long-Term Loans | 12 Months Ended |
Dec. 31, 2021 | |
Long-term loans [Member] | |
Disclosure of detailed information about borrowings [Line Items] | |
Loans | 2 4 . LONG-TERM LOANS December 31 2020 2021 NT$ NT$ (In Millions) Secured bank loans (Note 41) $ 1,600 $ 1,600 Less: Current portion (1,600 ) — $ - $ 1,600 The annual interest rates of bank loans were as follows: December 31 2020 2021 Secured bank loans 0.72% 0.89% LED obtained a secured loan from Chang Hwa Bank in September 2010. Interest is paid monthly. $300 million and $1,350 million were originally due in December 2014 and September 2015, respectively. In October 2014, the bank borrowing mentioned above was extended to September 2018 for one time repayment. LED made an early repayment of $50 million in April 2015. LED entered into a contract with Chang Hwa Bank to renew the contract upon the maturity of the aforementioned contract in December 2017 and the due date of the renewed contract is September 2021. |
Bonds Payable
Bonds Payable | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Bonds Payable [Abstract] | |
Bonds Payable | 2 5 . BONDS PAYABLE December 31 2020 2021 NT$ NT$ (In Millions) Unsecured domestic bonds $ 20,000 $ 27,000 Less: Discounts on bonds payable (20 ) (23 ) $ 19,980 $ 26,977 The major terms of unsecured domestic bonds issued by Chunghwa were as follows: Issuance Tranche Issuance Period Total Amount Coupon Rate Repayment and Interest Payment 2020-1 A July 2020 to July 2025 $ 8,800 0.50% One-time repayment upon maturity; interest payable annually B July 2020 to July 2027 7,500 0.54% The same as above C July 2020 to July 2030 3,700 0.59% The same as above 2021-1 A April 2021 to April 2026 1,900 0.42% The same as above B April 2021 to April 2028 4,100 0.46% The same as above C April 2021 to April 2031 1,000 0.50% The same as above |
Trade Notes and Accounts Payabl
Trade Notes and Accounts Payable | 12 Months Ended |
Dec. 31, 2021 | |
Trade And Other Current Payables [Abstract] | |
Trade Notes and Accounts Payable | 2 6 . TRADE NOTES AND ACCOUNTS PAYABLE December 31 2020 2021 NT$ NT$ (In Millions) Trade notes and accounts payable $ 15,591 $ 18,063 Trade notes and accounts payable were attributable to operating activities and the trading conditions were agreed separately. |
Other Payables
Other Payables | 12 Months Ended |
Dec. 31, 2021 | |
Trade And Other Current Payables [Abstract] | |
Other Payables | 2 7 . OTHER PAYABLES December 31 2020 2021 NT$ NT$ (In Millions) Accrued salary and compensation $ 9,450 $ 10,126 Payables to contractors 1,779 3,015 Accrued compensation to employees and remuneration to directors and supervisors 1,691 1,997 Amounts collected for others 1,308 1,426 Payables to equipment suppliers 1,049 1,154 Accrued maintenance costs 1,040 1,011 Payable on land (Note 16) 1,057 — Others 6,614 5,708 $ 23,988 $ 24,437 |
Provisions
Provisions | 12 Months Ended |
Dec. 31, 2021 | |
Provisions [Abstract] | |
Provisions | 2 8 . PROVISIONS December 31 2020 2021 NT$ NT$ (In Millions) Warranties $ 182 $ 213 Onerous contracts 171 147 Employee benefits 57 63 Others 5 4 $ 415 $ 427 Current $ 314 $ 285 Noncurrent 101 142 $ 415 $ 427 Warranties Onerous Contracts Employee Benefits Others Total NT$ NT$ NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 132 $ 19 $ 51 $ 5 $ 207 Additional provisions recognized 127 48 9 — 184 Used / forfeited during the year (86 ) — (1 ) — (87 ) Balance on December 31, 2019 $ 173 $ 67 $ 59 $ 5 $ 304 Balance on January 1, 2020 $ 173 $ 67 $ 59 $ 5 $ 304 Additional / (reversal of) provisions recognized 131 92 (2 ) — 221 Used / forfeited during the year (122 ) (3 ) — — (125 ) Acquired by business combinations (Note 14) — 15 — — 15 Balance on December 31, 2020 $ 182 $ 171 $ 57 $ 5 $ 415 Balance on January 1, 2021 $ 182 $ 171 $ 57 $ 5 $ 415 Additional / (reversal of) provisions recognized 102 (24 ) 7 (1 ) 84 Used / forfeited during the year (71 ) — (1 ) — (72 ) Effect of foreign exchange differences — — — — — Balance on December 31, 2021 $ 213 $ 147 $ 63 $ 4 $ 427 a. The provision for warranty claims represents the present value of the management’s best estimate of the future outflow of economic benefits that will be required under the Company’s obligation for warranties in sales agreements. The estimate has been made based on historical warranty experience. b. The provision for employee benefits represents vested long-term service compensation accrued. c . The provision for onerous contracts represents the present obligation resulting from the measurement for the unavoidable costs of meeting the Company’s contractual obligations exceed the economic benefits expected to be received from the contracts. |
Retirement Benefit Plans
Retirement Benefit Plans | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Retirement Benefit Plans [Abstract] | |
Retirement Benefit Plans | 2 9 . RETIREMENT BENEFIT PLANS a. Defined contribution plans The pension plan under the Labor Pension Act of ROC (the “LPA”) is considered as a defined contribution plan. Based on the LPA, Chunghwa and its domestic subsidiaries make monthly contributions to employees’ individual pension accounts at 6% of monthly salaries and wages. Its foreign subsidiaries would make monthly contributions based on the local pension requirements. b. Defined benefit plans Chunghwa completed its privatization plans on August 12, 2005. Chunghwa is required to pay all accrued pension obligations including service clearance payment, lump sum payment under civil service plan, additional separation payments, etc. upon the completion of the privatization in accordance with the Statute Governing Privatization of Stated-owned Enterprises. After paying all pension obligations for privatization, the plan assets of Chunghwa should be transferred to the Fund for Privatization of Government-owned Enterprises (the “Privatization Fund”) under the Executive Yuan. On August 7, 2006, Chunghwa transferred the remaining balance of fund to the Privatization Fund. However, according to the instructions of MOTC, Chunghwa was requested to administer the distributions to employees for pension obligations including service clearance payment, lump sum payment under civil service plan, additional separation payments, etc. upon the completion of the privatization and recognized in other current monetary assets. Chunghwa and its subsidiaries SENAO, CHIEF, CHSI, SHE, IISI and UTC with the pension mechanism under the Labor Standards Law in the ROC are considered as defined benefit plans. These pension plans provide benefits based on an employee’s length of service and average six-month salary prior to retirement. Chunghwa and its subsidiaries contribute an amount no more than 15% of salaries paid each month to their respective pension funds (the Funds), which are administered by the Labor Pension Fund Supervisory Committee (the Committee) and deposited in the names of the Committees in the Bank of Taiwan. The plan assets are held in a commingled fund which is operated and managed by the government’s designated authorities; as such, the Company does not have any right to intervene in the investments of the funds. According to the Article 56 of the Labor Standards Law in the ROC, entities are required to contribute the difference in one appropriation to their pension funds before the end of next March when the balance of the Funds is insufficient to pay the eligible employees who meet the retirement criteria in the following year. The amounts included in the consolidated balance sheets arising from the Company’s obligation in respect of its defined benefit plans were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Present value of funded defined benefit obligations $ 39,536 $ 35,502 Fair value of plan assets (39,494 ) (36,605 ) Funded status - deficit (surplus) $ 42 $ (1,103 ) Net defined benefit liabilities $ 3,415 $ 2,288 Net defined benefit assets (3,373 ) (3,391 ) $ 42 $ (1,103 ) Movements in the defined benefit obligations and the fair value of plan assets were as follows: Present Value of Funded Defined Benefit Obligations Fair Value of Plan Assets Net Defined Benefit Liabilities (Assets) NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 41,397 $ 39,027 $ 2,370 Current service cost 2,927 — 2,927 Interest expense/interest income 400 390 10 Amounts recognized in profit or loss 3,327 390 2,937 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 1,338 (1,338 ) Actuarial losses recognized from changes in demographic assumptions 6 — 6 Actuarial losses recognized from changes in financial assumptions 647 — 647 Actuarial gains recognized from experience adjustments (842 ) — (842 ) Amounts recognized in other comprehensive income (189 ) 1,338 (1,527 ) Contributions from employer — 2,099 (2,099 ) Benefits paid (3,034 ) (3,034 ) — Benefits paid directly by the Company (304 ) — (304 ) Balance on December 31, 2019 41,197 39,820 1,377 Current service cost 2,052 — 2,052 Interest expense/interest income 298 297 1 Amounts recognized in profit or loss 2,350 297 2,053 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 1,308 (1,308 ) Actuarial losses recognized from changes in financial assumptions 590 — 590 Actuarial gains recognized from experience adjustments (475 ) — (475 ) Amounts recognized in other comprehensive income 115 1,308 (1,193 ) Contributions from employer — 1,964 (1,964 ) Benefits paid (3,919 ) (3,919 ) — Benefits paid directly by the Company (263 ) — (263 ) Acquired by business combinations (Note 14) 56 24 32 Balance on December 31, 2020 39,536 39,494 42 Current service cost 1,253 — 1,253 Interest expense/interest income 190 195 (5 ) Amounts recognized in profit or loss 1,443 195 1,248 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 501 (501 ) Actuarial gain recognized from changes in demographic assumptions (434 ) — (434 ) Actuarial loss recognized from experience adjustments 545 — 545 Amounts recognized in other comprehensive income 111 501 (390 ) Contributions from employer — 1,727 (1,727 ) Benefits paid (5,312 ) (5,312 ) — Benefits paid directly by the Company (276 ) — (276 ) Balance on December 31, 2021 $ 35,502 $ 36,605 $ (1,103 ) Relevant pension costs recognized in profit and loss for defined benefit plans were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Operating costs $ 1,726 $ 1,205 $ 725 Marketing expenses 866 603 367 General and administrative expenses 164 121 80 Research and development expenses 103 72 44 $ 2,859 $ 2,001 $ 1,216 The Company is exposed to following risks for the defined benefits plans under the Labor Standards Law in the ROC: a. Investment risk Under the Labor Standards Law in the ROC, the rate of return on assets shall not be lower than the average interest rate on a two-year time deposit published by the local banks and the government is responsible for any shortfall in the event that the rate of return is less than the required rate of return. The plan assets are held in a commingled fund mainly invested in foreign and domestic equity and debt securities and bank deposits which is operated and managed by the government’s designated authorities; as such, the Company does not have any right to intervene in the investments of the funds. b. Interest rate risk The decline in government bond interest rate will increase the present value of the obligation on the defined benefit plan, while the return on plan assets will increase. The net effect on the present value of the obligation on defined benefit plan is partially offset by the return on plan assets. c. Salary risk The calculation of the present value of defined benefit obligations is referred to the plan participants’ future salary. Hence, the increase in plan participants’ salary will increase the present value of the defined benefit obligations. The most recent actuarial valuation of plan assets and the present value of the defined benefit obligations were carried out by the independent actuary. The principal assumptions used for the purpose of the actuarial valuations were as follows: Measurement Date December 31 2020 2021 Discount rates 0.50% 0.50% Expected rates of salary increase 1.00%-2.25% 1.00%-2.25% If reasonably possible changes of the respective significant actuarial assumptions occur at the end of reporting periods, while holding all other assumptions constant, the present values of the defined benefit obligations would increase (decrease) as follows: December 31 2020 2021 NT$ NT$ (In Millions) Discount rates 0.5% increase $ (1,208 ) $ (1,073 ) 0.5% decrease $ 1,284 $ 1,139 Expected rates of salary increase 0.5% increase $ 1,372 $ 1,217 0.5% decrease $ (1,303 ) $ (1,157 ) The sensitivity analysis presented above may not be representative of the actual change in the present value of the defined benefit obligations as it is unlikely that the change in assumptions would occur in isolation of one another as some of the assumptions may be correlated. Furthermore, in presenting the above sensitivity analysis, the present value of the defined benefit obligations has been calculated using the projected unit credit method at the end of the reporting period, which is the same as that applied in calculating the defined benefit obligation liability recognized in the consolidated balance sheets. There is no change in the methods and assumptions used in preparing the sensitivity analysis from the previous period. December 31 2020 2021 NT$ NT$ (In Millions) The expected contributions to the plan for the next year $ 1,932 $ 1,681 The average duration of the defined benefit obligations 6.4-13 years 6.3-12 years As of December 31, 2021, the Company’s maturity analysis of the undiscounted benefit payments was as follows: Year Amount NT$ (In Millions) 2022 $ 2,693 2023 6,330 2024 9,721 2025 10,864 2026 and thereafter 36,890 $ 66,498 |
Equity
Equity | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Classes Of Share Capital [Abstract] | |
Equity | 30 . EQUITY a. Share capital 1) Common stocks December 31 2020 2021 NT$ NT$ (In Millions) Number of authorized shares 12,000 12,000 Authorized shares $ 120,000 $ 120,000 Number of issued and paid shares 7,757 7,757 Issued and outstanding shares $ 77,574 $ 77,574 Each issued common stock with par value of $10 entitled the right to vote and receive dividends. 2) Global depositary receipts The MOTC and some stockholders sold some common stocks of Chunghwa in an international offering of securities in the form of American Depositary Shares (“ADS”) (one ADS represents 10 common stocks) in July 2003, August 2005, and September 2006. The ADSs were traded on the New York Stock Exchange since July 17, 2003. As of December 31, 2021, the outstanding ADSs were 202 million common stocks, which equaled 20 million units and represented 2.60% of Chunghwa’s total outstanding common stocks. The ADS holders generally have the same rights and obligations as other common stockholders, subject to the provision of relevant laws. The exercise of such rights and obligations shall comply with the related regulations and deposit agreement, which stipulate, among other things, that ADS holders are entitled to, through deposit agents: a) Exercise their voting rights, b) Sell their ADSs, and c) Receive dividends declared and subscribe to the issuance of new shares. b. Addition al paid-in capital The adjustments of additional paid-in capital for the years ended December 31, 2019, 2020 and 2021 were as follows: Share Premium Movements of Additional Paid-in Capital for Associates and Joint Ventures Accounted for Using Equity Method Movements of Additional Paid-in Capital Arising from Changes in Equities of Subsidiaries Difference between Consideration Received and Carrying Amount of the Subsidiaries’ Net Assets upon Disposal Donated Capital Stockholders’ Contribution Due to Privatization Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 126,045 $ — $ 2,064 $ 987 $ 18 $ 20,648 $ 149,762 Unclaimed dividend — — — — 1 — 1 Share-based payment transactions of subsidiaries — — (1 ) — — — (1 ) Balance on December 31, 2019 $ 126,045 $ — $ 2,063 $ 987 $ 19 $ 20,648 $ 149,762 Balance on January 1, 2020 $ 126,045 $ — $ 2,063 $ 987 $ 19 $ 20,648 $ 149,762 Unclaimed dividend — — — — 2 — 2 Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries — — — — — — — Share-based payment transactions of subsidiaries — — 26 — — — 26 Balance on December 31, 2020 $ 126,045 $ — $ 2,089 $ 987 $ 21 $ 20,648 $ 149,790 Balance on January 1, 2021 $ 126,045 $ — $ 2,089 $ 987 $ 21 $ 20,648 $ 149,790 Unclaimed dividend — — — — 2 — 2 Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method — 1 — — — — 1 Share-based payment transactions of subsidiaries — — 17 — — — 17 Balance on December 31, 2021 $ 126,045 $ 1 $ 2,106 $ 987 $ 23 $ 20,648 $ 149,810 Under the R.O.C. relevant laws, additional paid-in capital from share premium, donated capital and the difference between consideration received and the carrying amount of the subsidiaries’ net assets upon disposal may be utilized to offset deficits. Furthermore, when Chunghwa has no deficit, it may be distributed in cash or capitalized, which however is limited to a certain percentage of Chunghwa’s paid-in capital except the additional paid-in capital arising from unclaimed dividend can only be utilized to offset deficits. The additional paid-in capital from movements of paid-in capital arising from changes in equities of subsidiaries may only be utilized to offset deficits. Among additional paid-in capital from movements of investments in associates and joint ventures accounted for using equity method, the portion arising from the difference between consideration received and the carrying amount of the subsidiaries’ net assets upon disposal may be utilized to offset deficits; furthermore, when the Company has no deficit, it may be distributed in cash or capitalized. However, other additional paid-in capital recognized in proportion of share ownership may only be utilized to offset deficits. c. Retained earnings and dividends policy In accordance with the Chunghwa’s Articles of Incorporation, Chunghwa must pay all outstanding taxes, offset deficits in prior years and set aside a legal reserve equal to 10% of its net income before distributing a dividend or making any other distribution to stockholders, except when the accumulated amount of such legal reserve equals to Chunghwa’s total issued capital, and depending on its business needs or requirements, may also set aside or reverse special reserves. No less than 50% of the remaining earnings comprising remaining balance of net income, if any, plus cumulative undistributed earnings shall be distributed as stockholders’ dividends, of which cash dividends to be distributed shall not be less than 50% of the total amount of dividends to be distributed. If cash dividend to be distributed is less than $ 0.10 per share, such cash dividend shall be distributed in the form of common stocks. Special reserve was appropriated in accordance with the relevant laws and regulations or as requested by local authority. Pursuant to existing regulations, the Company should appropriate a special reserve when the net amount of other equity items is negative at the end of reporting period upon the earnings distribution. Distributions can be made out of any subsequent reversal of the debit to other equity items. The appropriation for legal reserve shall be made until the accumulated reserve equals the aggregate par value of the outstanding capital stock of Chunghwa. This reserve can only be used to offset a deficit, or when the legal reserve has exceeded 25% of Chunghwa’s paid-in capital, the excess may be transferred to capital or distributed in cash. The appropriations of the 2019 and 2020 earnings of Chunghwa approved by the stockholders in their meetings on May 29, 2020 and August 20, 2021, respectively, were as follows: Appropriation of Earnings Dividends Per Share (NT$) For Fiscal Year 2019 For Fiscal Year 2020 For Fiscal Year 2019 For Fiscal Year 2020 Cash dividends $ 32,783 $ 33,404 $ 4.226 $ 4.306 The appropriations of earnings for 2021 had been proposed by Chunghwa’s Board of Directors on February 23, 2022. The appropriations and dividends per share were as follows: Appropriation of Earnings Dividends Per Share (NT$) Special reserve $ 408 Cash dividends 35,746 $ 4.608 The appropriations of earnings for 2021 are subject to the resolution of the stockholders’ meeting planned to be held on May 27, 2022. d. Others 1) Exchange differences arising from the translation of the foreign operations The exchange differences arising from the translation of the foreign operations from their functional currency to New Taiwan dollars were recognized as exchange differences arising from the translation of the foreign operations in other comprehensive income. 2 ) Unrealized gain or loss on financial assets at FVOCI Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Beginning balance $ 538 $ 735 $ 1,240 Unrealized gain or loss for the year Equity instruments 197 522 (1,188 ) Transferred accumulated gain or loss to unappropriated earnings resulting from the disposal of equity instruments (Note 9) — (17 ) (60 ) Ending balance $ 735 $ 1,240 $ (8 ) e. Noncontrolling interests Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Beginning balance $ 9,837 $ 10,115 $ 11,158 Attributable to noncontrolling interests Net income for the year 974 1,285 1,431 Exchange differences arising from the translation of the foreign operations 8 (14 ) — Unrealized gain or loss on financial assets at FVOCI (26 ) (3 ) 2 Remeasurements of defined benefit pension plans 15 17 (5 ) Income tax relating to remeasurements of defined benefit pension plans (3 ) (3 ) 1 Share of other comprehensive loss of associates and joint ventures accounted for using equity method (1 ) (1 ) — Cash dividends distributed by subsidiaries (710 ) (775 ) (896 ) Share-based payment transactions of subsidiaries 22 63 56 Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries — — — Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method — (2 ) — Net increase (decrease) in noncontrolling interests (1 ) 476 — Ending balance $ 10,115 $ 11,158 $ 11,747 |
Revenue
Revenue | 12 Months Ended |
Dec. 31, 2021 | |
Revenue [Abstract] | |
Revenue | 31 . REVENUE Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenue from contracts with customers $ 206,360 $ 206,396 $ 208,412 Other revenues Government grants income 205 219 1,037 Rental income 818 843 864 Others 137 151 165 1,160 1,213 2,066 Total $ 207,520 $ 207,609 $ 210,478 For the information of performance obligations related to customer contracts, please refer to Note 3 Summary of Significant Accounting Policies for details. a. Disaggregation of revenue 2019 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 58,703 $ — $ — $ — $ 58,703 Sales of products 1,957 35,545 41 265 3,785 41,593 Local telephone and domestic long distance telephone services revenue 27,929 — — — — 27,929 Broadband access and domestic leased line services revenue 22,116 — — — — 22,116 Data Communications internet services revenue — — 21,003 — — 21,003 International network and leased line services revenue — — — 7,066 — 7,066 Others 13,064 1,142 8,790 4,144 810 27,950 $ 65,066 $ 95,390 $ 29,834 $ 11,475 $ 4,595 $ 206,360 2020 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 56,724 $ — $ — $ — $ 56,724 Sales of products 2,214 32,112 107 313 4,645 39,391 Local telephone and domestic long distance telephone services revenue 26,475 — — — — 26,475 Broadband access and domestic leased line services revenue 22,420 — — — — 22,420 Data Communications internet services revenue — — 21,447 — — 21,447 International network and leased line services revenue — — — 3,884 — 3,884 Others 17,695 1,307 10,255 4,485 2,313 36,055 $ 68,804 $ 90,143 $ 31,809 $ 8,682 $ 6,958 $ 206,396 2 0 21 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 58,048 $ — $ — $ — $ 58,048 Sales of products 2,173 35,414 128 12 5,180 42,907 Local telephone and domestic long distance telephone services revenue 25,704 — — — — 25,704 Broadband access and domestic leased line services revenue 23,012 — — — — 23,012 Data Communications internet services revenue — — 22,281 — — 22,281 International network and leased line services revenue — — — 4,367 — 4,367 Others 13,255 1,222 10,428 4,246 2,942 32,093 $ 64,144 $ 94,684 $ 32,837 $ 8,625 $ 8,122 $ 208,412 b. Contract balances January 1, December 31 2020 2020 2021 NT$ NT$ NT$ (In Millions) Trade notes and accounts receivable (Note 10) $ 26,408 $ 22,622 $ 23,947 Contract assets Products and service bundling $ 6,943 $ 7,232 $ 7,197 Others 116 612 983 Less : Loss allowance (17 ) (18 ) (18 ) $ 7,042 $ 7,826 $ 8,162 Current $ 4,441 $ 5,331 $ 5,554 Noncurrent 2,601 2,495 2,608 $ 7,042 $ 7,826 $ 8,162 Contract liabilities Telecommunications business $ 12,772 $ 13,602 $ 13,144 Project business 10,360 6,687 5,435 Products and service bundling 39 16 4 Others 510 421 491 $ 23,681 $ 20,726 $ 19,074 Current $ 16,840 $ 13,437 $ 12,234 Noncurrent 6,841 7,289 6,840 $ 23,681 $ 20,726 $ 19,074 The changes in the contract asset and the contract liability balances primarily result from the timing difference between the satisfaction of performance obligations and the payments collected from customers. Significant changes of contract assets and liabilities recognized resulting from product and service bundling were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Contract assets Net increase of customer contracts $ 6,066 $ 5,972 $ 6,035 Reclassified to trade receivables (6,405 ) (5,681 ) (6,039 ) $ (339 ) $ 291 $ (4 ) Contract liabilities Net increase of customer contracts $ 22 $ 7 $ — Recognized as revenues (89 ) (30 ) (12 ) $ (67 ) $ (23 ) $ (12 ) The Company applies the simplified approach to recognize expected credit losses prescribed by IFRS 9, which permits the use of lifetime expected loss provision for receivables. Contract assets will be reclassified to trade receivables when the corresponding invoice is billed to the client. Contract assets have substantially the same risk characteristics as the trade receivables of the same types of contracts. Therefore, the Company concluded that the expected loss rates for trade receivables can be applied to the contract assets. Revenue recognized for the period that was included in the contract liability at the beginning of the year was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Telecommunications business $ 6,186 $ 5,492 $ 5,952 Project business 3,973 6,092 4,630 Others 404 512 431 $ 10,563 $ 12,096 $ 11,013 c. Incremental costs of obtaining contracts December 31 2020 2021 NT$ NT$ (In Millions) Noncurrent Incremental costs of obtaining contracts $ 1,000 $ 988 The Company considered the past experience and the default clauses in the telecommunications service contracts and believes the commissions and equipment subsidies paid for obtaining such contracts are expected to be recoverable; therefore, such costs were capitalized. Amortization expenses for the years ended December 31 2019, 2020 and 2021 were $1,173 million, $772 million and $815 million, respectively. d. Remaining Performance Obligations As of December 31, 2021, the aggregate amount of transaction price allocated to performance obligations for non-cancellable telecommunications service contracts that are unsatisfied is $29,380 million. The Company recognizes revenue when service is provided over contract terms. The Company expects to recognize such revenue of $18,350 million, $8,603 million and $2,427 million in 2022, 2023 and 2024, respectively. The variable consideration collected from customers on nonrecurring basis resulting from exceeded usage from monthly fee and revenue recognized for contracts that the Company has a right to consideration from customers in the amount corresponding directly with the value to the customers of the Company’s performance completed to date have been excluded from the disclosure of remaining performance obligations. As of December 31, 2021, the aggregate amount of transaction price allocated to performance obligations for non-cancellable project business contracts that are unsatisfied is $19,030 million. The Company recognizes revenues when the project business contract is completed and accepted by customers. The Company expects to recognize such revenue of $9,033 million, $4,781 million and $5,216 million in 2022, 2023 and 2024, respectively. Project business contracts whose expected duration are less than a year have been excluded from the aforementioned disclosure. |
Net Income
Net Income | 12 Months Ended |
Dec. 31, 2021 | |
Analysis Of Income And Expense [Abstract] | |
Net Income and Other Comprehensive Income (Loss) | 3 2 . NET INCOME a. Other income and expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Gain (loss) on disposal of property, plant and equipment $ (38 ) $ 1,428 $ (3 ) Impairment loss on property, plant and equipment (93 ) — — Impairment loss on right-of-use assets — — (420 ) Gain on disposal of investment properties, net — 151 — Reversal of impairment loss on investment properties 57 27 83 Loss on disposal of intangible assets — (2 ) — Impairment loss on intangible assets (9 ) (9 ) (29 ) Impairment loss on other assets (44 ) — — $ (127 ) $ 1,595 $ (369 ) b. Other income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Dividend income $ 296 $ 246 $ 154 Rental income 85 70 70 Others 150 154 154 $ 531 $ 470 $ 378 c. Other gains and losses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Valuation gain (loss) on financial assets and liabilities at fair value through profit or loss, net $ (38 ) $ (99 ) $ 243 Foreign currency exchange gain or loss, net 16 (47 ) 230 Gain on disposal of investments accounted for using equity method, net 151 10 4 Gain (loss) on disposal of financial instruments, net 4 (2 ) — Others (49 ) (21 ) (16 ) $ 84 $ (159 ) $ 461 d. Interest expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Interest on bonds payable $ — $ 46 $ 132 Interest on lease liabilities 85 80 69 Interest paid to financial institutions 17 79 16 Others 2 1 1 $ 104 $ 206 $ 218 e . Impairment loss (reversal of impairment loss) Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Contract assets $ (2 ) $ 1 $ — Trade notes and accounts receivable $ (54 ) $ 49 $ 123 Other receivables $ (69 ) $ (5 ) $ 20 Inventories $ 475 $ 1,161 $ 207 Property, plant and equipment $ 93 $ — $ — Right-of-use assets $ — $ — $ 420 Investment properties $ (57 ) $ (27 ) $ (83 ) Intangible assets $ 9 $ 9 $ 29 Other assets $ 44 $ — $ — f . Depreciation and amortization expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Property, plant and equipment $ 26,930 $ 26,989 $ 27,805 Right-of-use assets 3,968 3,931 3,985 Investment properties 25 22 42 Intangible assets 4,253 5,424 6,569 Incremental costs of obtaining contracts 1,173 772 815 Total depreciation and amortization expenses $ 36,349 $ 37,138 $ 39,216 Depreciation expenses summarized by functions Operating costs $ 28,957 $ 29,056 $ 30,021 Operating expenses 1,966 1,886 1,811 $ 30,923 $ 30,942 $ 31,832 Amortization expenses summarized by functions Operating costs $ 5,196 $ 5,971 $ 7,172 Marketing expenses 96 100 93 General and administrative expenses 95 82 75 Research and development expenses 39 43 44 $ 5,426 $ 6,196 $ 7,384 g . Employee benefit expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Post-employment benefit Defined contribution plans $ 654 $ 708 $ 784 Defined benefit plans 2,859 2,001 1,216 3,513 2,709 2,000 Share-based payment Equity-settled share-based payment 2 8 19 Other employee benefit 42,640 42,246 42,654 Total employee benefit expenses $ 46,155 $ 44,963 $ 44,673 Summary by functions Operating costs $ 23,587 $ 23,005 $ 22,734 Operating expenses 22,568 21,958 21,939 $ 46,155 $ 44,963 $ 44,673 Chunghwa distributes employees’ compensation at the rates from 1.7% to 4.3% and remuneration to directors not higher than 0.17%, respectively, of pre-tax income. As of December 31, 2021, the payables of the employees’ compensation and the remuneration to directors were $1,429 million and $39 million, respectively. Such amounts have been approved by the Chunghwa’s Board of Directors on February 23, 2022 and will be reported to the stockholders in their meeting planned to be held on May 27, 2022. If there is a change in the proposed amounts after the annual consolidated financial statements are authorized for issue, the difference is recorded as a change in accounting estimate. The compensation to the employees and remuneration to the directors of 2019 and 2020 approved by the Board of Directors on February 26, 2020 and February 23, 2021, respectively, were as follows: 2019 2020 Cash Cash NT$ NT$ (In Millions) Compensation distributed to the employees $ 1,126 $ 1,202 Remuneration paid to the directors 35 36 There was no difference between the initial accrual amounts and the amounts proposed in the Board of Directors in 2020 and 2021 of the aforementioned compensation to employees and the remuneration to directors. |
Income Tax
Income Tax | 12 Months Ended |
Dec. 31, 2021 | |
Major Components Of Tax Expense Income [Abstract] | |
Income Tax | 3 3 . INCOME TAX a. Income tax recognized in profit or loss The major components of income tax expense were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Current tax Current tax expenses recognized for the year $ 8,109 $ 8,172 $ 8,490 Income tax on unappropriated earnings (20 ) 8 181 Income tax adjustments on prior years (91 ) (22 ) (150 ) Others 12 19 7 8,010 8,177 8,528 Deferred tax Deferred tax expense (benefits) recognized for the year (63 ) (81 ) 489 Income tax adjustments on prior years (1 ) 26 3 (64 ) (55 ) 492 Income tax expense recognized in profit or loss $ 7,946 $ 8,122 $ 9,020 Reconciliation of accounting profit and income tax expense was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Income before income tax $ 41,867 $ 42,826 $ 46,067 Income tax expense calculated at the statutory rate $ 8,373 $ 8,565 $ 9,213 Nondeductible income and expenses in determining taxable income 18 15 8 Unrecognized loss carryforwards 7 4 (1 ) Tax-exempt income (148 ) (367 ) (30 ) Income tax on unappropriated earnings (20 ) 8 181 Investment credits (203 ) (131 ) (217 ) Effect of different tax rates of group entities operating in other jurisdictions (9 ) 10 (10 ) Income tax adjustments on prior years (92 ) 4 (147 ) Others 20 14 23 Income tax expense recognized in profit or loss $ 7,946 $ 8,122 $ 9,020 The applicable tax rate used by the entities subject to the Income Tax Act of the Republic of China is 20 %, while the applicable tax rate used by subsidiaries in China is 25 %. Tax rates used by other entities of the Company operating in other jurisdictions are based on the tax laws in those jurisdictions. In July 2019, the President of the ROC announced the amendments to the Statute of Industrial Innovation, which stipulate that the unappropriated earnings in 2018 and thereafter that are used to build or acquire certain assets or technologies are allowed as deduction when computing the income tax on unappropriated earnings. The Company has deducted the reinvested capital expenditure while calculating income tax on unappropriated earnings. b. Income tax recognized in other comprehensive income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Deferred tax Remeasurement on defined benefit pension plans $ 305 $ 239 $ 78 Exchange differences arising from the translation of the foreign operations — — — Total income tax expense recognized in other comprehensive income $ 305 $ 239 $ 78 c. Current tax assets and liabilities December 31 2020 2021 NT$ NT$ (In Millions) Current tax assets Tax refund receivable (included in other current assets - others) $ 1 $ 5 Current tax liabilities Income tax payable $ 6,157 $ 6,530 d. Deferred income tax assets and liabilities The movements of deferred income tax assets and liabilities were as follows: For the year ended December 31, 2019 January 1, 2019 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2019 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 2,307 $ 32 $ (305 ) $ 2,034 Share of profit or loss of associates and joint ventures accounted for using equity method 389 13 — 402 Allowance for doubtful receivables over quota 435 (31 ) — 404 Valuation loss on inventory 88 53 — 141 Deferred revenue 111 (13 ) — 98 Estimated warranty liabilities 26 8 — 34 Valuation loss on financial instruments 5 8 — 13 Others 178 (73 ) — 105 3,539 (3 ) (305 ) 3,231 Loss carryforwards 41 (13 ) — 28 $ 3,580 $ (16 ) $ (305 ) $ 3,259 January 1, 2019 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2019 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,832 ) $ 74 $ — $ (1,758 ) Land value incremental tax (95 ) — — (95 ) Deferred revenue for award credits (31 ) 2 — (29 ) Unrealized foreign exchange gain, net (1 ) — — (1 ) Intangible assets (32 ) 3 — (29 ) Others (1 ) 1 — — $ (1,992 ) $ 80 $ — $ (1,912 ) For the year ended December 31, 2020 January 1, 2020 Acquired by business combinations (Note 14) Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2020 NT$ NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 2,034 $ 1 $ 20 $ (239 ) $ 1,816 Share of profit or loss of associates and joint ventures accounted for using equity method 402 — (1 ) — 401 Allowance for doubtful receivables over quota 404 — (39 ) — 365 Valuation loss on inventory 141 3 155 — 299 Deferred revenue 98 — (25 ) — 73 Estimated warranty liabilities 34 — 2 — 36 Valuation loss on financial instruments 13 — 20 — 33 Others 105 2 (17 ) — 90 3,231 6 115 (239 ) 3,113 Loss carryforwards 28 — (8 ) — 20 $ 3,259 $ 6 $ 107 $ (239 ) $ 3,133 January 1, 2020 Acquired by business combinations (Note 14) Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2020 NT$ NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,758 ) $ — $ (54 ) $ — $ (1,812 ) Land value incremental tax (95 ) — — — (95 ) Deferred revenue for award credits (29 ) — (1 ) — (30 ) Unrealized foreign exchange gain, net (1 ) — 1 — — Intangible assets (29 ) — 2 — (27 ) Others — (3 ) — — (3 ) $ (1,912 ) $ (3 ) $ (52 ) $ — $ (1,967 ) For the year ended December 31, 2021 January 1, 2021 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2021 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 1,816 $ 6 $ (78 ) $ 1,744 Share of profit or loss of associates and joint ventures accounted for using equity method 401 — — 401 Allowance for doubtful receivables over quota 365 (100 ) — 265 Valuation loss on inventory 299 (102 ) — 197 Deferred revenue 73 (24 ) — 49 Estimated warranty liabilities 36 7 — 43 Valuation loss on financial instruments 33 (33 ) — — Others 90 (15 ) — 75 3,113 (261 ) (78 ) 2,774 Loss carryforwards 20 (9 ) — 11 $ 3,133 $ (270 ) $ (78 ) $ 2,785 January 1, 2021 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2021 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,812 ) $ (157 ) $ — $ (1,969 ) Land value incremental tax (95 ) — — (95 ) Deferred revenue for award credits (30 ) (25 ) — (55 ) Unrealized foreign exchange gain, net — (26 ) — (26 ) Intangible assets (27 ) 3 — (24 ) Valuation gain on financial instruments — (16 ) — (16 ) Others (3 ) (1 ) — (4 ) $ (1,967 ) $ (222 ) $ — $ (2,189 ) e. Items for which no deferred income tax assets have been recognized December 31 2020 2021 NT$ NT$ (In Millions) Loss carryforwards Expire in 2022 $ 10 $ — Expire in 2023 8 — Expire in 2024 8 1 Expire in 2025 19 15 Expire in 2026 8 8 Expire in 2027 3 3 Expire in 2028 1 1 Expire in 2029 1 1 Expire in 2030 — — Expire in 2031 — — $ 58 $ 29 f. Information about unused loss carryforwards As of December 31, 2021 unused loss carryforwards were as follows: Remaining Creditable Amount Expiry Year NT$ (In Millions) $ 1 2022 1 2023 1 2024 18 2025 10 2026 3 2027 1 2028 2 2029 2 2030 2 2031 $ 41 g . Income tax examinations Income tax returns of Chunghwa, SENAO, ISPOT, Youth, Youyi, Aval, Wiin, SENYOUNG, Senaolife, CHYP, CHSI, CHI, CHPT, SFD, CLPT, CHTSC, CHIEF, Unigate, SHE, CHST, HHI, IISI and UTC have been examined by the tax authorities through 2019. Income tax returns of LED has been examined by the tax authorities through 2020. |
Earnings Per Share
Earnings Per Share | 12 Months Ended |
Dec. 31, 2021 | |
Earnings Per Share [Abstract] | |
Earnings Per Share | 3 4 . EARNINGS PER SHARE Net income and weighted average number of common stocks used in the calculation of earnings per share were as follows: Net Income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Net income used to compute the basic earnings per share Net income attributable to the parent $ 32,947 $ 33,419 $ 35,616 Assumed conversion of all dilutive potential common stocks Employee stock options and employee compensation of subsidiaries (4 ) (7 ) (6 ) Net income used to compute the diluted earnings per share $ 32,943 $ 33,412 $ 35,610 Weighted Average Number of Common Stocks (Millions Shares) Year Ended December 31 2019 2020 2021 Weighted average number of common stocks used to compute the basic earnings per share 7,757 7,757 7,757 Assumed conversion of all dilutive potential common stocks Employee compensation 8 8 8 Weighted average number of common stocks used to compute the diluted earnings per share 7,765 7,765 7,765 As Chunghwa may settle the employee compensation in shares or cash, Chunghwa shall presume that it will be settled in shares and take those shares into consideration when calculating the weighted average number of outstanding shares used in the calculation of diluted EPS if the shares have a dilutive effect. The dilutive effect of the shares needs to be considered until the approval of the number of shares to be distributed to employees as compensation in the following year. |
Share-based Payment Arrangement
Share-based Payment Arrangement | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Abstract] | |
Share-based Payment Arrangement | 3 5 . SHARE-BASED PAYMENT ARRANGEMENT a. SENAO share-based compensation plan (“SENAO Plan”) described as follows: Effective Date Grant Date Stock Options Units Exercise Price (In Thousands) NT$ 2012.05.28 2013.05.07 10,000 $66.20 (Original price$93.00) Each option is eligible to subscribe for one common share when exercisable. Under the terms of the SENAO Plan, the options are granted at an exercise price equal to the closing price of the SENAO’s common stocks listed on the TWSE on the higher of closing price or par value. The SENAO Plan has an exercise price adjustment formula upon the changes in common stocks equity (including cash capital increase, new share issue through capitalization of earnings and additional paid-in capital, merger, spin off and new share issue for Global Depositary Shares, and so on) or distribution of cash dividends. The options of the SENAO Plan are valid for six years and the graded vesting schedule for which 50% of options granted will vest two years after the grant date and another two tranches of 25%, each will vest three and four years after the grant date respectively. Information about SENAO’s outstanding stock options for the year ended December 31, 2019 was as follows: Year Ended December 31, 2019 Granted on May 7, 2013 Number of Options Weighted- average Exercise Price (In Thousands) NT$ Employee stock options Options outstanding at beginning of the year 5,318 $ 66.20 Options forfeited (5,318 ) — Options outstanding at end of the year — — Options exercisable at end of the year — — As of December 31, 2019, 2020 and 2021, there were no outstanding stock options. No compensation cost was recognized for the years ended December 31, 2019, 2020 and 2021. SENAO used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on May 7, 2013 Grant-date share price (NT$) $ 93.00 Exercise price (NT$) $ 93.00 Dividend yield — Risk-free interest rate 0.91 % Expected life 4.375 years Expected volatility 36.22 % Weighted average fair value of grants (NT$) $ 28.72 Expected volatility was based on the historical share price volatility of SENAO over the period equal to the expected life of the SENAO Plan. b . CHIEF share-based compensation plan (“CHIEF Plan”) described as follows: Effective Date Grant Date Stock Options Units Exercise Price NT$ 2015.11.17 2015.10.22 2,000.00 $34.40 (Original price$43.00) 2017.12.18 2017.12.19 950.00 $128.70 (Original price$147.00) 2018.10.31 50.00 $134.50 (Original price$147.00) 2020.09.16 2020.11.13 200.00 $199.70 (Original price$206.00) Each option is eligible to subscribe for one thousand of the CHIEF Plan are valid for five years and the graded vesting schedule will vest two years after the grant date. The Board of Directors of CHIEF resolved to issue stock options on October 26, 2020 and authorized the chairman to decide the grant date. Afterwards, the grant date was decided as November 13, 2020. The compensation costs for stock options for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Granted on October 22, 2015 $ 0.3 $ — $ — Granted on December 19, 2017 0.6 0.2 0.1 Granted on October 31, 2018 0.6 0.3 0.2 Granted on November 13, 2020 — 1.3 9.7 $ 1.5 1.8 10.0 CHIEF modified the plan terms of stock options granted on December 19, 2017 in June 2019, July 2020 and September 2021; therefore, the exercise price changed from $140.60 to $135.60, $132.70 and $128.70 per share, respectively. The modification did not cause any incremental fair value granted. CHIEF modified the plan terms of stock options granted on October 31, 2018 in June 2019, July 2020 and September 2021; therefore, the exercise price changed from $147.00 to $141.70, $138.70 and $134.50 per share, respectively. The modification did not cause any incremental fair value granted. CHIEF modified the plan terms of stock options granted on November 13, 2020 in September 2021; therefore, the exercise price changed from $206.00 to $199.70 per share. The modification did not cause any incremental fair value granted. Information about CHIEF’s outstanding stock options for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 Granted on October 22, 2015 Granted on December 19, 2017 Granted on October 31, 2018 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 882.75 $ 34.40 925.00 $ 140.60 50.00 $ 147.00 Options exercised (547.25 ) 34.40 — — — — Options forfeited (21.25 ) — (28.00 ) — (4.00 ) — Options outstanding at end of the year 314.25 34.40 897.00 135.60 46.00 141.70 Options exercisable at end of the year 314.25 34.40 448.50 135.60 — — Year Ended December 31, 2020 Granted on October 22, 2015 Granted on December 19, 2017 Granted on October 31, 2018 Granted on November 13, 2020 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 314.25 $ 34.40 897.00 $ 135.60 46.00 $ 141.70 — $ — Options granted — — — — — — 200.00 206.00 Options exercised (314.25 ) 34.40 (448.50 ) 135.60 (21.00 ) 138.70 — — Options forfeited — — (21.00 ) — (4.00 ) — — — Options outstanding at end of the year — — 427.50 132.70 21.00 138.70 200.00 206.00 Options exercisable at end of the year — — 213.75 132.70 — — — — Year Ended December 31, 2021 Granted on December 19, 2017 Granted on October 31, 2018 Granted on November 13, 2020 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 427.50 $ 132.70 21.00 $ 138.70 200.00 $ 206.00 Options exercised (213.75 ) 132.70 (10.50 ) 134.50 — — Options forfeited (0.50 ) — — — (6.00 ) — Options outstanding at end of the year 213.25 128.70 10.50 134.50 194.00 199.70 Options exercisable at end of the year 213.25 128.70 — — — — As of December 31, 2020, information about employee stock options outstanding was as follows: Granted on December 19, 2017 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 132.70 427.50 1.96 $ 132.70 213.75 $ 132.70 Granted on October 31, 2018 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 138.70 21.00 2.83 $ 138.70 — $ — Granted on November 13, 2020 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 206.00 200.00 4.87 $ 206.00 — $ — As of December 31, 2020, all the stock options granted in 2015 were exercised or forfeited. As of December 31, 2021, information about employee stock options outstanding was as follows: Granted on December 19, 2017 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 128.70 213.25 0.96 128.70 213.25 128.70 Granted on October 31, 2018 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ 134.50 10.50 1.83 $ 134.50 — $ — Granted on November 13, 2020 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 199.70 194.00 3.87 $ 199.70 — $ — As of December 31, 2021, all the stock options granted in 2015 were exercised or forfeited. CHIEF used the fair value method to evaluate the options using the Black-Scholes model and binomial option pricing model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on October 22, 2015 Stock Options Granted on December 19, 2017 Stock Options Granted on October 31, 2018 Stock Options Granted on November 13, 2020 Grant-date share price (NT$) $ 39.55 $ 95.92 $ 166.00 $ 356.00 Exercise price (NT$) $ 43.00 $ 147.00 $ 147.00 $ 206.00 Dividend yield — — — — Risk-free interest rate 0.86 % 0.62 % 0.72 % 0.18 % Expected life 5 years 5 years 5 years 5 years Expected volatility 21.02 % 17.35 % 16.60 % 34.61 % Weighted average fair value of grants (NT$) $ 4,863 $ 2,318 $ 33,540 $ 173,893 The expected volatility for the options granted in 2020 was based on CHIEF’s average annualized historical share price volatility from June 5, 2018, CHIEF’s listing date on Taipei Exchange, to the grant date. The expected volatilities for the options granted from 2015 to 2018 were based on the average annualized historical share price volatility of CHIEF’s comparable companies before the grant date. c . CHTSC share-based compensation plan (“CHTSC Plan”) described as follows: The Board of Directors of CHTSC resolved to issue 4,500 and 3,500 stock options on December 20, 2019 and February 20, 2021, respectively. Each option is eligible to subscribe for one thousand The compensation costs for stock options for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Granted on December 20, 2019 $ 0.2 $ 5.7 $ 2.9 Granted on February 20, 2021 — — 5.5 $ 0.2 5.7 8.4 Information about CHTSC’s outstanding stock options for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 Granted on December 20, 2019 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — Options granted 4,500 19.085 Options outstanding at end of the year 4,500 19.085 Options exercisable at end of the year — — Year Ended December 31, 2020 Granted on December 20, 2019 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 4,500 $ 19.085 Options forfeited (172 ) — Options outstanding at end of the year 4,328 19.085 Options exercisable at end of the year 1,082 19.085 Year Ended December 31, 2021 Granted on December 20, 2019 Granted on February 20, 2021 Number of Options Weighted average Exercise Price (NT$) Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 4,328 $ 19.085 — $ — Options granted — — 3,500 19.085 Options exercised (1,082 ) 19.085 — — Options forfeited (72 ) — (176 ) — Options outstanding at end of the year 3,174 19.085 3,324 19.085 Options exercisable at end of the year 1,058 19.085 — — As of December 31, 2020, information about employee stock options outstanding was as follows: Granted on December 20, 2019 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 4,328 3.97 $ 19.085 1,082 $ 19.085 As of December 31, 2021, information about employee stock options outstanding was as follows: Granted on December 20, 2019 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 3,174 2.97 $ 19.085 1,058 $ 19.085 Granted on February 20, 2021 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 3,324 4.14 $ 19.085 — $ — CHTSC used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on December 20, 2019 Stock Options Granted on February 20, 2021 Grant-date share price (NT$) $ 20.17 $ 23.76 Exercise price (NT$) $ 19.085 $ 19.085 Dividend yield 12.49 % 15.18 % Risk-free interest rate 0.54 % 0.25 % Expected life 5 years 5 years Expected volatility 42.41 % 47.35 % Weighted average fair value of grants (NT$) $ 2,470 $ 3,350 Expected volatility was based on the average annualized historical share price volatility of CHTSC’s comparable companies before the grant date. d . IISI share-based compensation plan (“IISI Plan”) described as follows: IISI issued 1,335 and 1,665 stock options in August 2013 and January 2014, respectively. Each option is eligible to subscribe for one thousand No compensation cost of stock options granted was recognized for the six months ended December 31, 2020 and the year ended December 31, 2021. Information about IISI’s outstanding stock options for the years ended December 31, 2020 and 2021 was as follows: Year Ended December 31, 2020 Granted in August 2013 Granted in January 2014 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — — $ — Options outstanding upon the date of business combination 1,022.96 14.00 580.00 14.00 Options exercised (432.50 ) 14.00 (50.00 ) 14.00 Options forfeited (590.46 ) — — — Options outstanding at end of the year — — 530.00 14.00 Options exercisable at end of the year — — 530.00 14.00 Year Ended December 31, 2021 Granted in January 2014 Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 530.00 $ 14.00 Options exercised (261.00 ) 14.00 Options forfeited (269.00 ) — Options outstanding at end of the year — — Options exercisable at end of the year — — As of December 31, 2020, information about employee stock options outstanding was as follows: Granted in January 2014 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 14.00 530.00 0.04 $ 14.00 530.00 $ 14.00 As of December 31, 2020, the options granted to employees in 2013 have been fully exercised or forfeited. As of December 31, 2021, all the stock options granted in 2013 and 2014 were exercised or forfeited. IISI used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted in August 2013 Stock Options Granted in January 2014 Grant-date share price (NT$) $ 12.51 $ 14.51 Exercise price (NT$) $ 14.00 $ 14.00 Dividend yield 6 % 6 % Risk-free interest rate 1.20%-1.39% 1.16%-1.32% Expected life 4.5-5.5 years 4.5-5.5 years Expected volatility 36.01%-36.62% 35.28%-35.97% Weighted average fair value of grants (NT$) $ 1,670 $ 2,345 Expected volatility was based on the average annualized historical share price volatility of IISI’s comparable companies before the grant date. e . CLPT share-based compensation plan (“CLPT Plan”) described as follows: The Board of Directors of CLPT resolved to issue 690 stock options on February 26, 2021. Each option is eligible to subscribe for one thousand common stocks when exercisable and the exercise price is $15.90 per share (original price is $16.87 per share). The options are granted to specific employees that meet the vesting conditions. The CLPT Plan has an exercise price adjustment formula upon the changes in common stocks or distribution of cash dividends. The options of the CLPT Plan are valid for four years and the graded vesting schedule will vest two years after the grant date. The compensation cost was $0.9 million for the year ended December 31, 2021. CLPT modified the plan terms of stock options granted on February 26, 2021 in September 2021; therefore, the exercise price changed from $16.87 to $15.90 per share. The modification did not cause any incremental fair value granted. Information about CLPT’s outstanding stock options for the year ended December 31, 2021 was as follows: Year Ended December 31, 2021 Granted on February 26, 2021 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — Options granted 690 $ 16.87 Options forfeited (140 ) — Options outstanding at end of the year 550 15.90 Options exercisable at end of the year — — As of December 31, 2021, information about employee stock options outstanding was as follows: Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 15.90 550.00 3.16 $ 15.90 — $ — CLPT used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on February 26, 2021 Grant-date share price (NT$) $ 17.63 Exercise price (NT$) $ 16.87 Dividend yield — Risk-free interest rate 0.31 % Expected life 4 years Expected volatility 35.22 % Weighted average fair value of grants (NT$) $ 4,750 Expected volatility was based on the average annualized historical share price volatility of CLPT’s comparable companies before the grant date. |
Non-cash Transactions
Non-cash Transactions | 12 Months Ended |
Dec. 31, 2021 | |
Non Cash Transaction From Financing Activities [Abstract] | |
Non Cash Transactions | 3 6 . NON-CASH TRANSACTIONS Except for those disclosed in other notes, the Company entered into the following non-cash investing and financing activities: Year Ended December 31 Investing activities 2019 2020 2021 NT$ NT$ NT$ (In Millions) Increase in property, plant and equipment $ 23,164 $ 25,195 $ 35,613 Changes in other payables 1,002 (1,684 ) (280 ) Acquisition of property, plant and equipment $ 24,166 $ 23,511 $ 35,333 Increase in investment properties $ 1 $ 1,359 $ 1 Trade-in investment properties from asset exchange transaction (Note 16) — (1,305 ) — Acquisition of investment properties $ 1 $ 54 $ 1 Increase in intangible assets $ 363 $ 48,605 $ 256 Changes in other assets — (1,000 ) — Acquisition of intangible assets $ 363 $ 47,605 $ 256 Disposal of property, plant and equipment $ 86 $ 307 $ 30 Gain (loss) on disposal of property, plant and equipment (38 ) 1,428 (3 ) Trade-in investment properties from asset exchange transaction (Note 16) — (1,305 ) — Changes in other payables — (80 ) — Changes in other current monetary assets — (31 ) — Proceeds from disposal of property, plant and equipment $ 48 $ 319 $ 27 Disposal of financial assets at fair value through other comprehensive income $ — $ 568 $ 2,705 Changes in other current monetary assets — (271 ) 271 Reclassified to investment accounted for using equity method — — (64 ) Proceeds from disposal of financial assets at fair value through other comprehensive income $ — $ 297 $ 2,912 Financing activities Balance on January 1, 2019 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2019 New Leases Others NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 10,340 $ (3,728 ) $ 3,803 $ (572 ) $ (85 ) $ 9,758 Balance on January 1, 2020 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2020 New Leases Acquired by business combination (Note 14) Others NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 9,758 $ (3,683 ) $ 3,796 $ 71 $ (265 ) $ (80 ) $ 9,597 Balance on January 1, 2021 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2021 New Leases Others NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 9,597 $ (3,729 ) $ 4,669 $ (195 ) $ (69 ) $ 10,273 |
Capital Management
Capital Management | 12 Months Ended |
Dec. 31, 2021 | |
Capital Commitments [Abstract] | |
Capital Management | 3 7 . CAPITAL MANAGEMENT The Company manages its capital to ensure that entities in the Company will be able to continue as going concerns while maximizing the return to stakeholders through the optimization of the debt and equity balance. The capital structure of the Company consists of debt of the Company and the equity attributable to the parent. Some consolidated entities are required to maintain minimum paid-in capital amount as prescribed by the applicable laws. The management reviews the capital structure of the Company as needed. As part of this review, the management considers the cost of capital and the risks associated with each class of capital. According to the management’s suggestions, the Company maintains a balanced capital structure through paying cash dividends, increasing its share capital, purchasing outstanding shares, and issuing new debt or repaying debt. |
Financial Instruments
Financial Instruments | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Financial Instruments [Abstract] | |
Financial Instruments | 3 8 . FINANCIAL INSTRUMENTS Categories of Financial Instruments December 31 2020 2021 NT$ NT$ (In Millions) Financial assets Measured at FVTPL Mandatorily measured at FVTPL $ 687 $ 912 Hedging financial assets 2 — Financial assets at amortized cost (Note a) 62,405 71,799 Financial assets at FVOCI 7,193 3,616 Financial liabilities Measured at FVTPL Held for trading — 6 Hedging financial liabilities — 8 Measured at amortized cost (Note b) 62,557 64,747 Note a: The balances included cash and cash equivalents, trade notes and accounts receivable, receivables from related parties, other current monetary assets and refundable deposits (classified as other noncurrent assets), which were financial assets measured at amortized cost. Note b: The balances included short-term loans, short-term bills payable, trade notes and accounts payable, payables to related parties, partial other payables, customers’ deposits, bonds payable and long-term loans (included current portion) which were financial liabilities carried at amortized cost. Financial Risk Management Objectives The main financial instruments of the Company include equity investments, trade notes and accounts receivable, trade notes and accounts payable, lease liabilities, loans, short-term bills payable and bonds payable. The Company’s Finance Department provides services to its business units, co-ordinates access to domestic and international capital markets, monitors and manages the financial risks relating to the operations of the Company through internal risk reports which analyze exposures by degree and magnitude of risks. These risks include market risk (including foreign currency risk, interest rate risk and other price risk), credit risk, and liquidity risk. The Company seeks to minimize the effects of these risks by using derivative financial instruments to hedge risk exposures. The use of financial derivatives is governed by the Company’s policies approved by the Board of Directors. Those derivatives are used to hedge the risks of exchange rate fluctuation arising from operating or investment activities. Compliance with policies and risk exposure limits is reviewed by the Company’s Finance Department on a continuous basis. The Company does not enter into or trade financial instruments, including derivative financial instruments, for speculative purposes. Chunghwa reports the significant risk exposures and related action plans timely and actively to the audit committee and if needed to the Board of Directors. a. Market risk The Company is exposed to market risks of changes in foreign currency exchange rates and interest rates. The Company uses forward exchange contracts to hedge the exchange rate risk arising from assets and liabilities denominated in foreign currencies. There were no changes to the Company’s exposure to market risks or the manner in which these risks are managed and measured. 1) Foreign currency risk The carrying amounts of the Company’s foreign currency denominated monetary assets and monetary liabilities at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Assets USD $ 2,711 $ 2,010 EUR 15 49 SGD 170 260 JPY 22 37 RMB 30 89 HKD 69 70 Liabilities USD 768 890 EUR 957 861 SGD 1,049 1,964 JPY 10 13 RMB — 39 HKD 8 16 The carrying amounts of the Company’s derivatives with exchange rate risk exposures at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Assets USD $ — $ — EUR 4 — Liabilities USD — — EUR — 14 Foreign currency sensitivity analysis The Company is mainly exposed to the fluctuations of the currencies USD, EUR, SGD, JPY, RMB and HKD as listed above. The following table details the Company’s sensitivity to a 5% increase and decrease in the functional currency against the relevant foreign currencies. 5 5 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Profit or loss Monetary assets and liabilities (a) USD $ 83 $ 97 $ 56 EUR (10 ) (47 ) (41 ) SGD (52 ) (44 ) (85 ) JPY — 1 1 RMB — 1 3 HKD (1 ) 3 3 Derivatives (b) USD 1 (19 ) — EUR 3 3 13 Equity Derivatives (c) EUR 4 10 11 a) This is mainly attributable to the exposure to foreign currency denominated receivables and payables of the Company outstanding at the balance sheet dates. b) This is mainly attributable to forward exchange contracts. c) This is mainly attributable to the changes in the fair value of derivatives that are designated as cash flow hedges. For a 5% strengthening of the functional currency against the relevant currencies, there would be an equal and opposite effect on the pre-tax profit or equity for the amounts shown above. 2) Interest rate risk The carrying amounts of the Company’s exposures to interest rates on financial assets and financial liabilities at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Fair value interest rate risk Financial assets $ 24,218 $ 27,671 Financial liabilities 36,576 37,249 Cash flow interest rate risk Financial assets 9,306 14,171 Financial liabilities 1,667 1,665 Interest rate sensitivity analysis The sensitivity analyses below have been determined based on the exposure to interest rates for non-derivative instruments at the end of the reporting period. A 25 basis point increase or decrease is used when reporting interest rate risk internally to key management personnel and represents management’s assessment of the reasonably possible change in interest rates. If interest rates had been 25 basis points higher/lower and all other variables were held constant, the Company’s pre-tax income would increase/decrease by $15 million, $19 million and $31 million for the years ended December 31, 2019, 2020 and 2021, respectively. This is mainly attributable to the Company’s exposure to floating interest rates on its financial assets, short-term and long-term loans. 3) Other price risk The Company is exposed to equity price risks arising from holding other company’s equity. Equity investments are held for strategic rather than trading purposes. The management managed the risk through holding various risk portfolios. Further, the Company assigned finance and investment departments to monitor the price risk. Equity price sensitivity analysis The sensitivity analyses below have been determined based on the exposure to equity price risks at the end of the reporting period. If equity prices had been 5% higher/lower, pre-tax profit and pre-tax other comprehensive income for the year ended December 31, 2019 would have increased/decreased by $39 million and $358 million as a result of the changes in fair value of financial assets at FVTPL and financial assets at FVOCI, respectively. If equity prices had been 5% higher/lower, pre-tax profit and pre-tax other comprehensive income for the year ended December 31, 2020 would have increased/decreased by $34 million and $360 million as a result of the changes in fair value of financial assets at FVTPL and financial assets at FVOCI, respectively. If equity prices had been 5% higher/lower, pre-tax profit and pre-tax other comprehensive income for the year ended December 31, 2021 would have increased/decreased by $46 million and $181 million as a result of the changes in fair value of financial assets at FVTPL and financial assets at FVOCI, respectively. b. Credit risk Credit risk refers to the risk that a counterparty would default on its contractual obligations resulting in financial loss to the Company. The maximum credit exposure of the aforementioned financial instruments is equal to their carrying amounts recognized in the consolidated balance sheet as of the balance sheet date. The Company has large trade receivables outstanding with its customers. A substantial majority of the Company’s outstanding trade receivables are not covered by collateral or credit insurance. The Company has implemented ongoing measures including enhancing credit assessments and strengthening overall risk management to reduce its credit risk. While the Company has procedures to monitor and limit exposure to credit risk on trade receivables, there can be no assurance such procedures will effectively limit its credit risk and avoid losses. This risk is heightened during periods when economic conditions worsen. As the Company serves a large number of unrelated consumers, the concentration of credit risk was limited. c. Liquidity risk The Company manages and maintains sufficient cash and cash equivalent position to support the operations and reduce the impact on fluctuation of cash flow. 1) Liquidity and interest risk tables The following tables detailed the Company’s remaining contractual maturity for its non-derivative financial liabilities with agreed repayment periods. The tables had been drawn up based on the undiscounted cash flows of financial liabilities based on the earliest date on which the Company is required to pay. December 31, 2020 Weighted Average Effective Interest Rate (%) Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Non-derivative financial liabilities Non-interest bearing — $ 37,749 $ — $ 2,476 $ 4,827 $ — $ 45,052 Floating interest rate instruments 0.78 — 7 1,660 — — 1,667 Fixed interest rate instruments 0.50 7,000 — — 8,800 11,200 27,000 $ 44,749 $ 7 $ 4,136 $ 13,627 $ 11,200 $ 73,719 Information about the maturity analysis for lease liabilities was as follows: Less than 1 Year 1-3 Years 3-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 3,397 $ 4,240 $ 1,691 $ 409 $ 9,737 December 31, 2021 Weighted Average Effective Interest Rate (%) Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Non-derivative financial liabilities Non-interest bearing — $ 40,895 $ — $ 1,997 $ 5,336 $ — $ 48,228 Floating interest rate instruments 0.95 — 15 50 1,600 — 1,665 Fixed interest rate instruments 0.51 — — — 10,700 16,300 27,000 $ 40,895 $ 15 $ 2,047 $ 17,636 $ 16,300 $ 76,893 Information about the maturity analysis for lease liabilities was as follows: Less than 1 Year 1-3 Years 3-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 3,228 $ 4,126 $ 1,808 $ 1,244 $ 10,406 The following table detailed the Company’s liquidity analysis for its derivative financial instruments. The table had been drawn up based on the undiscounted gross inflows and outflows on those derivatives that require gross settlement. Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) December 31, 2020 Gross settled Forward exchange contracts Inflows $ — $ 635 $ — $ — $ 635 Outflows — 631 — — 631 $ — $ 4 $ — $ — $ 4 December 31, 2021 Gross settled Forward exchange contracts Inflows $ — $ 471 $ — $ — $ 471 Outflows — 485 — — 485 $ — $ (14 ) $ — $ — $ (14 ) 2) Financing facilities December 31 2020 2021 NT$ NT$ (In Millions) Facility of unsecured bank loan and commercial paper payable Amount used $ 7,068 $ 65 Amount unused 59,277 61,620 $ 66,345 $ 61,685 Facility of secured bank loan facility Amount used $ 1,600 $ 1,600 Amount unused 20 — $ 1,620 $ 1,600 |
Fair Value Information
Fair Value Information | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Fair Value Measurement Of Financial Instruments [Abstract] | |
Fair Value Information | 3 9 . FAIR VALUE INFORMATION The fair value measurement guidance establishes a framework for measuring fair value and expands disclosure about fair value measurements. The standard describes a fair value hierarchy based on three levels of inputs that may be used to measure fair value. These levels are: Level 1 fair value measurements: These measurements are those derived from quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 fair value measurements: These measurements are those derived from inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). Level 3 fair value measurements: These measurements are those derived from valuation techniques that include inputs for the asset or liability that are not based on observable market data (unobservable inputs). a. Financial instruments that are not measured at fair value but for which fair value is disclosed Except those listed in the table below, the Company considers that the carrying amounts of financial assets and liabilities not measured at fair value approximate their fair values or the fair values cannot be reliable estimated. December 31, 2020 December 31, 2021 Carrying Value Fair Value Carrying Value Fair Value Financial liabilities Financial liabilities measured at amortized cost Bonds payable $ 19,980 $ 20,078 $ 26,977 $ 27,082 The fair value of bonds payable is measured using Level 2 inputs. The valuation of fair value is based on the quoted market prices provided by third party pricing services. b. Financial instruments that are measured at fair value on a recurring basis December 31, 2020 Level 1 Level 2 Level 3 Total Financial assets at FVTPL Derivatives $ — $ 2 $ — $ 2 Listed stocks 8 — — 8 Non-listed stocks — — 677 677 $ 8 $ 2 $ 677 $ 687 Hedging financial assets $ — $ 2 $ — $ 2 Financial assets at FVOCI Listed stocks $ 2,754 $ — $ — $ 2,754 Non-listed stocks — — 4,439 4,439 $ 2,754 $ — $ 4,439 $ 7,193 Financial liabilities at FVTPL Derivatives $ — $ — $ — $ — December 31, 2021 Level 1 Level 2 Level 3 Total Financial assets at FVTPL Listed stocks $ 3 $ — $ — $ 3 Non-listed stocks — — 885 885 Limited partnership — — 24 24 $ 3 $ — $ 909 $ 912 Financial assets at FVOCI Listed stocks $ 459 $ — $ — $ 459 Non-listed stocks — — 3,157 3,157 $ 459 $ — $ 3,157 $ 3,616 Financial liabilities at FVTPL Derivatives $ — $ 6 $ — $ 6 Hedging financial liabilities $ — $ 8 $ — $ 8 There were no transfers between Levels 1 and 2 for the years ended December 31, 2019, 2020 and 2021. The reconciliations for financial assets measured at Level 3 were listed below: 201 9 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2019 $ 517 $ 4,033 $ 4,550 Acquisition 300 — 300 Recognized in profit or loss under “Other gains and losses” (39 ) — (39 ) Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — 676 676 Proceed from return of investments — (9 ) (9 ) Balance at December 31, 2019 $ 778 $ 4,700 $ 5,478 Unrealized loss in 2019 $ (39 ) 2020 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2020 $ 778 $ 4,700 $ 5,478 Reclassified from investments accounted for using equity method — 2 2 Recognized in profit or loss under “Other gains and losses” (101 ) — (101 ) Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — (263 ) (263 ) Balance at December 31, 2020 $ 677 $ 4,439 $ 5,116 Unrealized loss in 2020 $ (101 ) 20 2 1 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2021 $ 677 $ 4,439 $ 5,116 Acquisition 25 81 106 Disposal — (5 ) (5 ) Reclassified to investments accounted for using equity method — (64 ) (64 ) Recognized in profit or loss under “Other gains and losses” 251 — 251 Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — (1,294 ) (1,294 ) Proceeds from return of capital due to capital reduction from investees (44 ) — (44 ) Balance at December 31, 2021 $ 909 $ 3,157 $ 4,066 Unrealized gain in 2021 $ 232 The fair values of financial assets and financial liabilities of Level 2 are determined as follows: 1) The fair values of financial assets and financial liabilities with standard terms and conditions and traded in active markets are determined with reference to quoted market prices. 2) For derivatives, fair values are estimated using discounted cash flow model. Future cash flows are estimated based on observable inputs including forward exchange rates at the end of the reporting periods and the forward and spot exchange rates stated in the contracts, discounted at a rate that reflects the credit risk of various counterparties. The fair values of non-listed domestic and foreign equity investments were Level 3 financial assets and determined using the market approach by reference the Price-to-Book ratios (P/B ratios) of peer companies that traded in active markets, using the income approach, in which the discounted cash flow is used to capture the present value of the expected future economic benefits to be derived from the ownership of these investees, or using assets approach. The Company originally used the market approach to measure the fair value of its investment in Taipei Financial Center Corp.; however, as the stock market was impacted by COVID-19 pandemic, the multiples of the referenced companies were changed significantly. With continuing impact of COVID-19 pandemic, the Company evaluated that the income approach, instead of the former market approach, would better reflect the future cash flows of Taipei Financial Center Corp. Therefore, the Company changed its valuation technique to the income approach starting from the second quarter of 2021. The significant unobservable inputs used were listed in the below table. An increase in growth rate of long-term revenue, a decrease in discount for the lack of marketability or noncontrolling interests discount, or a decrease in the weighted average cost of capital (“WACC”) would result in increases in the fair values. December 31 2020 2021 Discount for lack of marketability 14.73%-20.00% 16.05%-20.00% Noncontrolling interests discount 17.29%-25.00% 17.29%-25.00% Growth rate of long-term revenue — 0.19% WACC — 8.50% If the inputs to the valuation model were changed to reflect reasonably possible alternative assumptions while all the other variables were held constant, the fair values of equity investments would increase (decrease) as below table. December 31 2020 2021 NT$ NT$ (In Millions) Discount for lack of marketability 5% increase $ (320 ) $ (32 ) 5% decrease $ 320 $ 32 Noncontrolling interests discount 5% increase $ (47 ) $ (19 ) 5% decrease $ 47 $ 19 Long-term revenue growth rates 0.1% increase $ — $ 25 0.1% decrease $ — $ (25 ) WACC 1% increase $ — $ (288 ) 1% decrease $ — $ 350 |
Related Parties Transactions
Related Parties Transactions | 12 Months Ended |
Dec. 31, 2021 | |
Related Party Transactions [Abstract] | |
Related Parties Transactions | 40 . RELATED PARTIES TRANSACTIONS The ROC Government, one of Chunghwa’s customers, has significant equity interest in Chunghwa. Chunghwa provides fixed-line services, wireless services, internet and data and other services to the various departments and institutions of the ROC Government in the normal course of business and at arm’s-length prices. Except for those disclosed in other notes or this note, the transactions with the ROC government bodies have not been disclosed because the transactions are not individually or collectively significant. However, the related revenues and operating costs have been appropriately recorded. a. The Company engages in business transactions with the following related parties: Company Relationship Taiwan International Standard Electronics Co., Ltd. Associate So-net Entertainment Taiwan Limited Associate KKBOX Taiwan Co., Ltd. Associate KingwayTek Technology Co., Ltd. Associate UUPON Inc. Associate (Note 1) Taiwan International Ports Logistics Corporation Associate International Integrated Systems, Inc. Subsidiary (Note 2) Senao Networks, Inc. Associate EnRack Tech. Co., Ltd. Subsidiary of the Company’s associate, Senao Networks, Inc. Emplus Technologies, Inc. Subsidiary of the Company’s associate, Senao Networks, Inc. ST-2 Satellite Ventures Pte., Ltd. Associate CHT Infinity Singapore Pte. Ltd. Associate Viettel-CHT Co., Ltd. Associate Click Force Co., Ltd. Associate Alliance Digital Tech Co., Ltd. Associate (Note 3) Chunghwa PChome Fund I Co., Ltd. Associate Cornerstone Ventures Co., Ltd. Associate Next Commercial Bank Co., Ltd. Associate WiAdvance Technology Corporation Associate AgriTalk Technology Inc. Associate (Note 4) Imedtac Co., Ltd. Associate (Note 4) Chunghwa SEA Holdings Joint venture Other related parties Chunghwa Telecom Foundation A nonprofit organization of which the funds donated by Chunghwa exceeds one third of its total funds Senao Technical and Cultural Foundation A nonprofit organization of which the funds donated by SENAO exceeds one third of its total funds Sochamp Technology Co., Ltd. Investor of significant influence over CHST E-Life Mall Co., Ltd. One of the directors of E-Life Mall and a director of SENAO are members of an immediate family Engenius Technologies Co., Ltd. Chairman of Engenius Technologies Co., Ltd. is a member of SENAO’s management Cheng Keng Investment Co., Ltd. Chairman of Cheng Keng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Cheng Feng Investment Co., Ltd. Chairman of Cheng Feng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family All Oriented Investment Co., Ltd. Chairman of All Oriented Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family (Continued) Company Relationship Hwa Shun Investment Co., Ltd. Chairman of Hwa Shun Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Yu Yu Investment Co., Ltd. Chairman of Yu Yu Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Divine Fine Foods & Wine Inc. Chairman of Divine Fine Foods & Wine Inc. and SENAO’s chief executive officer are members of an immediate family (Note 5) United Daily News Co., Ltd. Investor of significant influence over SFD Shenzhen Century Communication Co., Ltd. Investor of significant influence over SCT Advantech Co., Ltd. Investor of significant influence over IISI Chunghwa Post Co., Ltd. Government-related entity as Chunghwa Telecom (Concluded) Note 1: UUPON was previously an associate. As the Company did not participate in the capital increase of UUPON in October 2020; therefore, the Company lost its significant influence over UUPON. Since then, UUPON was no longer a related party of the Company. Please refer to Note 15. Note 2: IISI was an associate and has become a subsidiary starting from July 1, 2020 (“acquisition date”). Please refer to Note 14(c). All transactions within the Company were eliminated upon consolidation since the acquisition date. Note 3: ADT completed its liquidation in August 2021. Please refer to Note 15. Note 4: ATT and IME were previously treated as financial assets at FVOCI. As the Company acquired seats in the Board of Directors of each company and has significant influence over ATT and IME in July and August 2021, respectively, these investments are reclassified as associates. Please refer to Note 15. Note 5: Divine Fine Foods & Wine Inc. replaced its responsible persons in October 2021. Since then, Divine Fine Foods & Wine Inc. is no longer a related party of the Company. b. Balances and transactions between Chunghwa and its subsidiaries, which are related parties of Chunghwa, have been eliminated on consolidation and are not disclosed in this note. Terms of the foregoing transactions with related parties were not significantly different from transactions with non-related parties. When no similar transactions with non-related parties can be referenced, terms were determined in accordance with mutual agreements. Details of transactions between the Company and other related parties are disclosed below: 1) Operating transactions Revenues Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 274 $ 1,508 $ 499 Others 76 66 55 $ 350 $ 1,574 $ 554 Operating Costs and Expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 964 $ 715 $ 853 Others 76 68 74 $ 1,040 $ 783 $ 927 2) Non-operating transactions Non-operating Income and Expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 41 $ 37 $ 38 Others 4 3 3 $ 45 $ 40 $ 41 3) Receivables December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 229 $ 35 Others 1 6 $ 230 $ 41 4) Contract liabilities-current December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 183 $ — 5 ) Payables December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 643 $ 386 Others 3 6 $ 646 $ 392 6 ) Customers’ deposits December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 5 $ 16 7 ) Acquisition of property, plant and equipment Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 242 $ 375 $ 398 8 ) Disposal of property, plant and equipment and investment properties to Chunghwa Post Co., Ltd. Proceeds Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ — $ — $ 10 Others (Chunghwa Post Co., Ltd.) — 386 — $ — $ 386 $ 10 Gain on Disposal Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ — $ — $ 2 Others (Chunghwa Post Co., Ltd.) — 310 — $ — $ 310 $ 2 9 ) Lease-in agreements Chunghwa entered into a contract with ST-2 Satellite Ventures Pte., Ltd. on March 12, 2010 to lease capacity on the ST-2 satellite. This lease term is for 15 years which should start from the official operation of ST-2 satellite and the total contract value is approximately $6,000 million (SGD$261 million), including a prepayment of $3,068 million at the inception of the lease, and the rest of amount should be paid annually when ST-2 satellite starts its official operation. ST-2 satellite was launched in May 2011 and began its official operation in August 2011. As ST-2 satellite is in good operating condition, the useful life is extended for another 3 years and 3 months after evaluation in 2021. The Board of Directors of Chunghwa approved to extend the lease period accordingly with the original contract terms in December 2021; therefore, Chunghwa acquired right-of-use asset of $ 1,125 million from the aforementioned l ease extension . The lease liabilities of ST-2 Satellite Ventures Pte., Ltd. as of December 31, 2020 and 2021 were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Lease liabilities - current $ 182 $ 173 Lease liabilities - noncurrent 817 1,741 $ 999 $ 1,914 The interest expense recognized for the aforementioned lease liabilities for the years ended December 31, 2019, 2020 and 2021 were $11 million, $9 million and $7 million, respectively. c. Compensation of key management personnel The compensation of directors and other key management personnel for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Short-term employee benefits $ 263 $ 290 $ 321 Post-employment benefits 9 11 7 Share-based payment — — 2 $ 272 $ 301 $ 330 The compensation of directors and key management personnel was mainly determined by the compensation committee having regard to the performances and market trends. |
Pledged Assets
Pledged Assets | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Collateral [Abstract] | |
Pledged Assets | 41 . PLEDGED ASSETS The following assets are pledged as collaterals for bank loans, custom duties of the imported materials and warranties of contract performance as well as the bank deposits for the restricted purpose in accordance with The Management, Utilization, and Taxation of Repatriated Offshore Funds Act in the ROC. December 31 2020 2021 NT$ NT$ (In Millions) Property, plant and equipment $ 2,462 $ 2,432 Land held under development (included in inventories) 1,999 — Restricted assets (included in other assets - others) 209 163 $ 4,670 $ 2,595 |
Significant Contingent Liabilit
Significant Contingent Liabilities and Unrecognized Commitments | 12 Months Ended |
Dec. 31, 2021 | |
Commitments And Contingencies [Abstract] | |
Significant Contingent Liabilities and Unrecognized Commitments | 4 2 . SIGNIFICANT CONTINGENT LIABILITIES AND UNRECOGNIZED COMMITMENTS Except for those disclosed in other notes, the Company’s significant commitments and contingent liabilities as of December 31, 2021 were as follows: a. Acquisitions of land and buildings of $572 million. b. Acquisitions of telecommunications-related inventory and equipment of $21,630 million. c. Unused letters of credit amounting to $10 million. d . A commitment to contribute $2,000 million to a Piping Fund administered by the Taipei City Government, of which $1,000 million was contributed by Chunghwa on August 15, 1996 (classified as other monetary assets - noncurrent). If the fund is not sufficient, Chunghwa will contribute the remaining $1,000 million upon notification from the Taipei City Government. e. Chunghwa committed that when its ownership interest in NCB is greater than 25% and NCB encounters financial difficulty or the capital adequacy ratio of NCB cannot meet the related regulation requirements, Chunghwa will provide financial support to assist NCB in maintaining a healthy financial condition. f . Chunghwa’s Board of Directors approved the acquisition of the 900MHz frequency band and equipment from Asia Pacific Telecom Co., Ltd. in November 2021. The transaction amount is expected to be in the range from $1,626 million to $2,081 million; however, the actual amount will be determined according to the approval date of the related authority and mutual negotiations. |
Significant Events After the Re
Significant Events After the Reporting Period | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Nonadjusting Events After Reporting Period [Abstract] | |
Significant Subsequent Events | 4 3 . SIGNIFICANT SUBSEQUENT EVENTS a. Chunghwa’s Board of Directors approved the issuance of unsecured domestic bonds in January 2022. The total amount of the bonds will not exceed $10,000 million and the issuance period will not exceed 10 years. The bonds could be issued at a one-time basis or separately. b. Chunghwa’s Board of Directors approved an investment in Taiwania Capital Buffalo Fund VI, L.P. at the amount of $600 million in January 2022. c. Chunghwa launched its organizational transformation based on customer-centric structure effective from January 2022. |
Other Matters
Other Matters | 12 Months Ended |
Dec. 31, 2021 | |
Miscellaneous Assets [Abstract] | |
Other Matters | 4 4 . OTHER MATTERS The Company has assessed the economic impact of COVID-19 pandemic and determined that there were no significant impacts on the Company’s consolidated financial statements as of the date the consolidated financial statements were authorized for issue. The Company will continue to monitor developments of the pandemic and assess the related impacts. |
Segment Information
Segment Information | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Operating Segments [Abstract] | |
Segment Information | 4 5 . SEGMENT INFORMATION The Company has the following reportable segments that provide different products or services. The reportable segments are managed separately because each segment represents a strategic business unit that serves different markets. Segment information is provided to the CEO who allocates resources and assesses segment performance. The Company’s measure of segment performance is mainly based on revenues and income before income tax. The Company’s reportable segments are as follows: a. Domestic fixed communications business - the provision of local telephone services, domestic long distance telephone services, broadband access, and related services; b. Mobile communications business - the provision of mobile services, sales of mobile handsets and data cards, and related services; c. Internet business - the provision of HiNet services and related services; d. International fixed communications business - the provision of international long distance telephone services and related services; e. Others - the provision of non-telecom services and the corporate related items not allocated to reportable segments. Some operating segments have been aggregated into a single operating segment taking into account the following factors: (a) similar economic characteristics such as long-term gross profit margins; (b) the nature of the telecommunications products and services are similar; (c) the nature of production processes of the telecommunications products and services are similar; (d) the type or class of customer for the telecommunications products and services are similar; and (e) the methods used to provide the services to the customers are similar. The accounting policies of the operating segments are the same as those described in Note 3. a. Segment revenues and operating results Analysis by reportable segment of revenues and operating results of continuing operations are as follows: Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Year ended December 31, 2019 Revenues From external customers $ 65,728 $ 95,469 $ 30,091 $ 11,485 $ 4,747 $ 207,520 Intersegment revenues 16,065 1,564 3,951 2,079 4,914 28,573 Segment revenues $ 81,793 $ 97,033 $ 34,042 $ 13,564 $ 9,661 236,093 Intersegment elimination (28,573 ) Consolidated revenues $ 207,520 Segment income (loss) before income tax $ 19,537 $ 11,250 $ 12,515 $ 799 $ (2,234 ) $ 41,867 Year ended December 31, 2020 Revenues From external customers $ 69,469 $ 90,230 $ 32,115 $ 8,695 $ 7,100 $ 207,609 Intersegment revenues 15,930 1,536 3,966 1,875 5,369 28,676 Segment revenues $ 85,399 $ 91,766 $ 36,081 $ 10,570 $ 12,469 236,285 Intersegment elimination (28,676 ) Consolidated revenues $ 207,609 Segment income (loss) before income tax $ 22,504 $ 8,777 $ 13,120 $ 829 $ (2,404 ) $ 42,826 Year ended December 31, 2021 Revenues From external customers $ 64,780 $ 95,249 $ 33,082 $ 9,096 $ 8,271 $ 210,478 Intersegment revenues 17,430 1,588 3,869 2,009 6,260 31,156 Segment revenues $ 82,210 $ 96,837 $ 36,951 $ 11,105 $ 14,531 241,634 Intersegment elimination (31,156 ) Consolidated revenues $ 210,478 Segment income (loss) before income tax $ 26,142 $ 6,362 $ 14,512 $ 1,165 $ (2,114 ) $ 46,067 b. 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, 2019 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 459 $ 459 Interest income $ 15 $ 9 $ 20 $ 41 $ 166 $ 251 Interest expenses $ 5 $ 58 $ 1 $ 12 $ 28 $ 104 Operating costs and expenses $ 56,269 $ 72,952 $ 13,850 $ 11,427 $ 12,249 $ 166,747 Depreciation and amortization $ 14,842 $ 16,254 $ 2,914 $ 1,547 $ 792 $ 36,349 Capital expenditure $ 12,071 $ 7,773 $ 1,425 $ 1,117 $ 1,780 $ 24,166 Impairment loss on property, plant and equipment $ — $ — $ — $ — $ 93 $ 93 Reversal of impairment loss on investment properties $ 57 $ — $ — $ — $ — $ 57 Impairment loss on intangible assets $ — $ 9 $ — $ — $ — $ 9 Impairment loss on other assets $ 13 $ — $ 13 $ — $ 18 $ 44 For the year ended December 31, 2020 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 244 $ 244 Interest income $ 13 $ 5 $ 17 $ 22 $ 59 $ 116 Interest expenses $ 6 $ 56 $ 1 $ 10 $ 133 $ 206 Operating costs and expenses $ 59,371 $ 69,211 $ 15,241 $ 8,573 $ 14,447 $ 166,843 Depreciation and amortization $ 14,250 $ 17,800 $ 2,669 $ 1,450 $ 969 $ 37,138 Capital expenditure $ 11,483 $ 8,827 $ 1,397 $ 779 $ 1,025 $ 23,511 Gain (loss) on disposal of property, plant and equipment $ 1,442 $ (3 ) $ — $ — $ (11 ) $ 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 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 421 $ 421 Interest income $ 7 $ 4 $ 13 $ 5 $ 66 $ 95 Interest expenses $ 4 $ 48 $ 1 $ 8 $ 157 $ 218 Operating costs and expenses $ 51,013 $ 74,973 $ 14,150 $ 8,409 $ 16,634 $ 165,179 Depreciation and amortization $ 13,978 $ 20,313 $ 2,471 $ 1,417 $ 1,037 $ 39,216 Capital expenditure $ 13,299 $ 16,809 $ 2,943 $ 445 $ 1,837 $ 35,333 Impairment loss on right-of-use assets $ — $ — $ — $ 420 $ — $ 420 Reversal of impairment loss on investment properties $ 83 $ — $ — $ — $ — $ 83 Impairment loss on intangible assets $ — $ 29 $ — $ — $ — $ 29 c. 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 2019 2020 2021 NT$ NT$ NT$ (In Millions) Mobile services revenue $ 58,703 $ 56,724 $ 58,048 Sales of products 41,593 39,391 42,907 Local telephone and domestic long distance telephone services revenue 27,929 26,475 25,704 Broadband access and domestic leased line services revenue 22,116 22,420 23,012 Data communications internet services revenue 21,003 21,447 22,281 International network and leased line services revenue 7,066 3,884 4,367 Others 29,110 37,268 34,159 $ 207,520 $ 207,609 $ 210,478 d. Geographic information The users of the Company’s services are mainly from Taiwan, ROC. The revenues it derived outside Taiwan are mainly revenues from international long distance telephone and leased line services. The geographic information for revenues was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Taiwan, ROC $ 197,895 $ 200,881 $ 204,473 Overseas 9,625 6,728 6,005 $ 207,520 $ 207,609 $ 210,478 The Company has long-lived assets in U.S., Singapore, Hong Kong, China, Vietnam, Japan, and Thailand and except for $3,746 million and $3,234 million as of December 31, 2020 and 2021, respectively, in the aforementioned areas, the other long-lived assets are located in Taiwan, ROC. e. Major customers As of December 31, 2019, 2020 and 2021, the Company did not have any single customer whose revenue exceeded 10% of the total revenues. |
Summary of Significant Accoun_2
Summary of Significant Accounting Policies (Policies) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Summary Of Significant Accounting Policies [Abstract] | |
Statement of Compliance | Statement of Compliance The accompanying consolidated financial statements have been prepared in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board (collectively, “IFRSs”). |
Basis of Preparation | Basis of Preparation The consolidated financial statements have been prepared on the historical cost basis except for certain financial instruments that are measured at fair values and net defined benefit liabilities (assets) which are measured at the present value of the defined benefit obligations less the fair value of plan assets. |
Current and Noncurrent Assets and Liabilities | Current and Noncurrent Assets and Liabilities Current assets include: a. Assets held primarily for the purpose of trading; b. Assets expected to be realized within twelve months after the reporting period; and c. Cash and cash equivalents unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. Current liabilities include: a. Liabilities held primarily for the purpose of trading; b. Liabilities due to be settled within twelve months after the reporting period; and c. Liabilities for which the Company does not have an unconditional right to defer settlement for at least twelve months after the reporting period. Assets and liabilities that are not classified as current are classified as noncurrent. Light Era Development Co., Ltd. (“LED”) engages mainly in development of property for rent and sale. The assets and liabilities of LED related to property development within its operating cycle, which is over one year, are classified as current items. |
Basis of Consolidation | Basis of Consolidation a. Principles for preparing consolidated financial statements The consolidated financial statements incorporate the financial statements of Chunghwa and entities controlled by Chunghwa (its subsidiaries). Income and expenses of subsidiaries acquired are included in the consolidated statement of comprehensive income from the acquisition date. When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies in line with those used by the Company. All inter-company transactions, balances, income and expenses are eliminated in full upon consolidation. Attribution of total comprehensive income to noncontrolling interests Total comprehensive income of subsidiaries is attributed to the stockholders of the parent and to the noncontrolling interests even if it results in the noncontrolling interests having a deficit balance. Changes in the Company’s ownership interests in subsidiaries Changes in the Company’s ownership interests in subsidiaries that do not result in the Company losing control over the subsidiaries are accounted for as equity transactions. The carrying amounts of the Company’s interests and the noncontrolling interests are adjusted to reflect the changes in their relative interests in the subsidiaries. Any difference between the amount by which the noncontrolling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to stockholders of the parent. b. The subsidiaries in the consolidated financial statements The detail information of the subsidiaries at the end of reporting period was as follows: Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Chunghwa Telecom Co., Ltd. Senao International Co., Ltd. (“SENAO”) Handset and peripherals retailer, sales of CHT mobile phone plans as an agent 28 28 a) Light Era Development Co., Ltd. (“LED”) Planning and development of real estate and intelligent buildings, and property management 100 100 Donghwa Telecom Co., Ltd. (“DHT”) International private leased circuit, IP VPN service, and IP transit services 100 100 b) Chunghwa Telecom Singapore Pte., Ltd. (“CHTS”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa System Integration Co., Ltd. (“CHSI”) Providing system integration services and telecommunications equipment 100 100 Chunghwa Investment Co., Ltd. (“CHI”) Investment 89 89 CHIEF Telecom Inc. (“CHIEF”) Network integration, internet data center (“IDC”), communications integration and cloud application services 56 56 c) CHYP Multimedia Marketing & Communications Co., Ltd. (“CHYP”) Digital information supply services and advertisement services 100 100 Prime Asia Investments Group Ltd. (B.V.I.) (“Prime Asia”) Investment 100 100 Spring House Entertainment Tech. Inc. (“SHE”) Software design services, internet contents production and play, and motion picture production and distribution 56 56 Chunghwa Telecom Global, Inc. (“CHTG”) International private leased circuit, internet services, and transit services 100 100 Chunghwa Telecom Vietnam Co., Ltd. (“CHTV”) Intelligent energy saving solutions, international circuit, and information and communication technology (“ICT”) services 100 100 Smartfun Digital Co., Ltd. (“SFD”) Providing diversified family education digital services 65 65 Chunghwa Telecom Japan Co., Ltd. (“CHTJ”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa Sochamp Technology Inc. (“CHST”) Design, development and production of Automatic License Plate Recognition software and hardware 51 51 Honghwa International Co., Ltd. (“HHI”) Telecommunications engineering, sales agent of mobile phone plan application and other business services, etc. 100 100 Chunghwa Leading Photonics Tech Co., Ltd. (“CLPT”) Production and sale of electronic components and finished products 75 75 Chunghwa Telecom (Thailand) Co., Ltd. (“CHTT”) International private leased circuit, IP VPN service, ICT and cloud VAS services 100 100 (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note CHT Security Co., Ltd. (“CHTSC”) Computing equipment installation, wholesale of computing and business machinery equipment and software, management consulting services, data processing services, digital information supply services and internet identify services 80 77 d) International Integrated Systems, Inc. (“IISI”) IT solution provider, IT application consultation, system integration and package solution 51 51 e) Senao International Co., Ltd. Senao International (Samoa) Holding Ltd. (“SIS”) International investment 100 100 f) Youth Co., Ltd. (“Youth”) Sale of information and communication technologies products 96 96 g) Aval Technologies Co., Ltd. (“Aval”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. (“SENYOUNG”) Property and liability insurance agency 100 100 Youth Co., Ltd. ISPOT Co., Ltd. (“ISPOT”) Sale of information and communication technologies products 100 100 Youyi Co., Ltd. (“Youyi”) Maintenance of information and communication technologies products 100 100 Aval Technologies Co., Ltd. Wiin Technology Co., Ltd. (“Wiin”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. Senaolife Insurance Agent Co., Ltd. (“Senaolife”) Life insurance services 100 100 CHIEF Telecom Inc. Unigate Telecom Inc. (“Unigate”) Telecommunications and internet service 100 100 Chief International Corp. (“CIC”) Telecommunications and internet service 100 100 Shanghai Chief Telecom Co., Ltd. (“SCT”) Telecommunications and internet service 49 49 h) Chunghwa Investment Co., Ltd. Chunghwa Precision Test Tech. Co., Ltd. (“CHPT”) Production and sale of semiconductor testing components and printed circuit board 34 34 i) Chunghwa Precision Test Tech. Co., Ltd. Chunghwa Precision Test Tech. USA Corporation (“CHPT (US)”) Design and after-sale services of semiconductor testing components and printed circuit board 100 100 j) CHPT Japan Co., Ltd. (“CHPT (JP)”) Related services of electronic parts, machinery processed products and printed circuit board 100 100 Chunghwa Precision Test Tech. International, Ltd. (“CHPT (International)”) Wholesale and retail of electronic materials, and investment 100 100 k) Senao International (Samoa) Holding Ltd. Senao International HK Limited (“SIHK”) International investment 100 100 l) (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Senao International HK Limited Senao International Trading (Shanghai) Co., Ltd. (“SITS”) Sale of information and communication technologies products 100 — m) Prime Asia Investments Group Ltd. (B.V.I.) Chunghwa Hsingta Co., Ltd. (“CHC”) Investment 100 100 Chunghwa Hsingta Co., Ltd. Chunghwa Telecom (China) Co., Ltd. (“CTC”) Integrated information and communication solution services for enterprise clients, and intelligent energy network service 100 100 n) Chunghwa Precision Test Tech. International, Ltd. Shanghai Taihua Electronic Technology Limited (“STET”) Design of printed circuit board and related consultation service 100 100 Su Zhou Precision Test Tech. Ltd. (“SZPT”) Assembly processed of circuit board, design of printed circuit board and related consultation service 100 100 o) International Integrated Systems, Inc. Infoexplorer International Co., Ltd.(“IESA”) Investment 100 100 p) IISI Investment Co., Ltd. (“IICL”) Investment 100 100 p) Unitronics Technology Corp. (“UTC”) Development and maintenance of information system 99.96 99.96 p) Infoexplorer International Co., Ltd. International Integrated Systems (Hong Kong) Limited (“IEHK”) Investment and technical consulting service 100 100 p) IISI Investment Co., Ltd. Leading Tech Co., Ltd. (“LTCL”) Investment 100 100 p) Leading Tech Co., Ltd. Leading Systems Co., Ltd. (“LSCL”) Investment 100 100 p) Leading Systems Co., Ltd. International Integrated Systems Inc. (Shanghai) (“IISS”) Development and maintenance of information system 100 — p) q) International Integrated Systems Inc. (Shanghai) Huiyu Shanghai Management Consultancy Co., Ltd. (“HSMC”) Development and maintenance of information system — — p) r) (Concluded) a ) Chunghwa continues to control six out of eleven seats of the Board of Directors of SENAO through the support of large beneficial stockholders. As a result, the Company treated SENAO as a subsidiary. b ) DHT reduced and returned its capital to its stakeholders in March 2021. The Company’s ownership interest in DHT remained the same c ) CHIEF issued new shares in March 2020, December 2020, March 2021 and December 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHIEF decreased to 59.08% and 58.89% as of December 31, 2020 and 2021, respectively. d ) CHTSC issued new shares in February 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHTSC decreased to 77.46% as of December 31, 2021. e ) Chunghwa obtained 20.38% ownership interest in IISI in July 2020 and Chunghwa’s ownership interest in IISI increased to 51.54% by considering the previously held ownership interest in IISI. Chunghwa obtained over half of the seats of the Board of Directors of IISI; therefore, Chunghwa gained control over IISI and treated it as a subsidiary. IISI issued new shares in September 2020 and January 2021 as its employees exercised options; therefore, the Company’s ownership interest in IISI decreased to 51.20% and 51.02% as of December 31, 2020 and 2021, respectively. f ) SIS reduced and returned its capital to its stakeholders in November 2020 and July 2021. SIS reduced 8.14% and 48.15% of its capital to offset accumulated deficits in February and October 2021, respectively. The Company’s ownership interest in SIS remained the same. g ) SENAO subscribed for all the shares in the capital increase of Youth in April 2020. Therefore, the Company’s ownership interest in Youth increased from 92.89% to 95.79%. h ) CHIEF has two out of three seats of the Board of Directors of SCT according to the mutual agreements among stockholders and gained control over SCT; hence, SCT is deemed as a subsidiary of the Company. i ) Though the Company’s ownership interest in CHPT is less than 50 %, the management considered the absolute and relative size of ownership interest, and the dispersion of shares owned by the other stockholders and concluded that the Company has a sufficiently dominant voting interest to direct the relevant activities; hence, CHPT is deemed as a subsidiary of the Company . j ) CHPT increased its investment in CHPT (US) proportionally in August 2021 and the Company’s ownership interest in CHPT (US) remained the same. k ) CHPT increased its investment in CHPT (International) proportionally in April 2021 and the Company’s ownership interest in CHPT (International) remained the same. l ) SIHK reduced and returned its capital to its stakeholders in November 2020 and May 2021. SIHK reduced 8.15% and 47.79% of its capital to offset accumulated deficits in January and August 2021, respectively. The Company’s ownership interest in SIHK remained the same. m ) SITS completed its liquidation in April 2021. n ) CTC was approved to end and dissolve its business in August 2020. The liquidation of CTC is still in process. o ) p ) It is a subsidiary of IISI. q ) IISS completed its liquidation in August 2021 r ) HSMC completed its liquidation in December 2020. The following diagram presented information regarding the relationship and percentages of ownership interests between Chunghwa and its subsidiaries as of December 31, 2021. |
Business Combinations | Business Combinations Acquisitions of businesses are accounted for using the acquisition method. Acquisition-related costs are generally recognized in profit or loss as they are incurred. Goodwill is measured as the excess of the sum of the consideration transferred and the fair value of the acquirer’s previously held equity interests in the acquiree over the net of the acquisition-date amounts of the identifiable assets acquired and the liabilities assumed. Noncontrolling interests that are present ownership interests and entitle their holders to a proportionate share of the entity’s net assets in the event of liquidation are measured at the noncontrolling interests’ proportionate share of the recognized amounts of the acquiree’s identifiable net assets. When a business combination is achieved in stages, the Company’s previously held equity interest in an acquiree is remeasured to fair value at the acquisition date and the resulting gain or loss is recognized in profit or loss. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are recognized on the same basis as would be required had those interests been directly disposed of by the Company . |
Foreign Currencies | Foreign Currencies In preparing the financial statements of each individual entity, transactions in currencies other than the entity’s functional currency (foreign currencies) are recognized at the rates of exchange prevailing at the dates of the transactions. At the end of each reporting period, monetary items denominated in foreign currencies are retranslated at the rates prevailing at that date. Exchange differences on monetary items arising from settlement or translation are recognized in profit or loss in the period in which they arise. Non-monetary items carried at fair value that are denominated in foreign currencies are retranslated at the rates prevailing at the date when the fair value was determined and related exchange differences are recognized in profit or loss. Conversely, when the fair value changes were recognized in other comprehensive income, related exchange difference shall be recognized in other comprehensive income. Non-monetary items that are measured at historical cost in a foreign currency are not retranslated. Chunghwa uses New Taiwan dollars (NT$) as the functional currency. For the purpose of presenting consolidated financial statements, the assets and liabilities of the Company’s foreign operations (including those subsidiaries, associates and joint ventures in other countries or currencies used different with Chunghwa) are translated into New Taiwan dollars using exchange rates prevailing at the end of each reporting period. Income and expense items are translated at the average exchange rates for the period. Exchange differences arising, if any, are recognized in other comprehensive income and attributed to stockholders of the parent and noncontrolling interests as appropriate. |
Cash Equivalents | Cash Equivalents Cash equivalents include those maturities within three months from the date of acquisition, highly liquid, readily convertible to a known amount of cash and are subject to an insignificant risk of changes in value such as commercial papers, negotiable certificates of deposit, time deposits, repurchase agreements collateralized by bonds and stimulus vouchers. These cash equivalents are held for the purpose of meeting short-term cash commitments. |
Inventories | Inventories Inventories are stated at the lower of cost or net realizable value item by item, except for those that may be appropriate to group items of similar or related inventories. Net realizable value is the estimated selling price of inventories less all estimated costs of completion and costs necessary to make the sale. The calculation of the cost of inventory is derived using the weighted-average method. |
Buildings and Land Consigned to Construction Contractors | Buildings and Land Consigned to Construction Contractors Inventories of LED are stated at the lower of cost or net realizable value item by item, except for those that may be appropriate to group as similar items or related inventories. Land acquired before construction is classified as land held for development and then reclassified as land held under development after LED begins its construction project. Upon the completion of the construction project, LED recognizes revenues in the amount of proceeds from customers for land and buildings and related costs when ownership is transferred to the customers. The unsold portion of the completed construction project is transferred to land and building held for sale. |
Investments in Associates and Joint Ventures | Investments in Associates and Joint Ventures An associate is an entity over which the Company has significant influence and that is neither a subsidiary nor an interest in a joint venture. A joint venture is a joint arrangement whereby the Company and other parties that have joint control of the arrangement have rights to the net assets of the arrangement. Investments accounted for using the equity method include investments in associates and interests in joint ventures. Under the equity method, an investment in an associate and a joint venture is initially recognized at cost and adjusted thereafter to recognize the Company’s share of profit or loss and other comprehensive income of the associate and joint venture as well as the distribution received. The Company also recognizes its share in changes in the associates and joint ventures. When the Company subscribes for new shares of an associate and a joint venture at a percentage different from its existing ownership percentage, the resulting carrying amount of the investment differs from the amount of the Company’s proportionate interest in the associate and joint venture. The Company records such a difference as an adjustment to investments with the corresponding amount charged or credited to additional paid-in capital. When the adjustment should be debited to additional paid-in capital but the additional paid-in capital recognized from investments accounted for using equity method is insufficient, the shortage is debited to retained earnings. Any excess of the cost of acquisition over the Company’s share of the fair value of the identifiable net assets and liabilities of an associate and a joint venture at the date of acquisition is recognized as goodwill, which is included within the carrying amount of the investment and shall not be amortized. Any excess of the Company’s share of the net fair value of the identifiable assets and liabilities over the cost of acquisition is recognized immediately in profit or loss. The entire carrying amount of an investment (including goodwill) is tested for impairment as a single asset by comparing its recoverable amount with its carrying amount. Any impairment loss recognized is not allocated to any asset, including goodwill, that forms part of the carrying amount of the investment. Any reversal of that impairment loss is recognized to the extent that the recoverable amount of the investment subsequently increases. The Company discontinues the use of the equity method from the date on which its investment ceases to be an associate and a joint venture. Any retained investment is measured at fair value at that date, and the fair value is regarded as the investment’s fair value on initial recognition as a financial asset. The difference between the previous carrying amount of the associate and joint venture attributable to the retained interest and its fair value is included in the determination of the gain or loss on disposal of the associate and joint venture. The Company accounts for all amounts previously recognized in other comprehensive income in relation to that associate and joint venture on the same basis as would be required had that associate and joint venture directly disposed of the related assets or liabilities. When the Company transacts with its associate and joint venture, profits and losses resulting from the transactions with the associate and joint venture are recognized in the Company’s consolidated financial statements only to the extent of interests in the associate and joint venture that are not related to the Company. |
Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment are initially measured at cost and subsequently measured at cost less accumulated depreciation and accumulated impairment loss. Property, plant and equipment in the course of construction are depreciated and classified to the appropriate categories of property, plant and equipment when completed and ready for their intended use. Depreciation on property, plant and equipment is recognized using the straight-line method. Each significant part is depreciated separately. Freehold land is not depreciated. The estimated useful lives, residual values and depreciation method are reviewed at the end of each year, with the effect of any changes in estimate accounted for on a prospective basis. On derecognition of an item of property, plant and equipment, the difference between the net disposal proceeds and the carrying amount of the asset is recognized in profit or loss in the period in which the property is derecognized . |
Investment Properties | Investment Properties Investment properties are properties held to earn rentals and/or for capital appreciation. Investment properties also include land held for a currently undetermined future use. Investment properties are measured initially at cost, including transaction costs. Subsequent to initial recognition, investment properties are measured at cost less accumulated depreciation and accumulated impairment loss. Depreciation is recognized using the straight-line method. For a transfer from the investment properties to property, plant and equipment, the deemed cost of the property, plant and equipment for subsequent accounting is its carrying amount at the commencement of owner-occupation. For a transfer from the property, plant and equipment to investment properties, the deemed cost of the investment properties for subsequent accounting is its carrying amount at the end of owner-occupation. For a contract where a land owner provides land for the construction of buildings by a property developer in exchange for a certain percentage of the buildings, any exchange gain or loss is recognized when the exchange transaction occurs if the exchange transaction has commercial substance. On derecognition of the investment properties, the difference between the net disposal proceeds and the carrying amount of the asset is recognized in profit or loss in the period in which the property is derecognized. |
Goodwill | Goodwill Goodwill arising from the acquisition of a business is carried at cost as established at the date of acquisition of the business less accumulated impairment loss. For the purpose of impairment testing, goodwill is allocated to each of the Company’s cash-generating units or groups of cash-generating units (referred to as “cash-generating unit”) that are expected to benefit from the synergies of the business combination. A cash-generating unit to which goodwill has been allocated is tested for impairment annually, or more frequently when there is an indication that the unit may be impaired, by comparing its carrying amount, including the attributable goodwill, with its recoverable amount. However, if the goodwill allocated to a cash-generating unit was acquired in a business combination during the current annual period, that unit shall be tested for impairment before the end of the current annual period. If the recoverable amount of the cash-generating unit is less than its carrying amount, the impairment loss is allocated first to reduce the carrying amount of any goodwill allocated to the unit and then to the other assets of the unit pro rata based on the carrying amount of each asset in the unit. Any impairment loss is recognized directly in profit or loss. An impairment loss recognized for goodwill is not reversed in subsequent periods. |
Intangible Assets Other Than Goodwill | Intangible Assets Other Than Goodwill Intangible assets with finite useful lives that are acquired separately are initially measured at cost and subsequently measured at cost less accumulated amortization and accumulated impairment loss. Amortization is recognized on a straight-line basis. The estimated useful life, residual value, and amortization method are reviewed at the end of each reporting period, with the effect of any changes in estimate being accounted for on a prospective basis. The residual value of an intangible asset with a finite useful life shall be assumed to be zero unless the Company expects to dispose of the intangible asset before the end of its economic life. Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date (which is regarded as their cost). Subsequent to initial recognition, they are measured on the same basis as intangible assets that are acquired separately . Gains or losses arising from derecognition of an intangible asset, measured as the difference between the net disposal proceeds and the carrying amount of the asset, are recognized in profit or loss in the period in which the asset is derecognized. |
Impairment of Property, Plant and Equipment, Right-of-use Assets, Investment Properties, Intangible Assets Other Than Goodwill and Incremental Costs of Obtaining Contracts | Impairment of Property, Plant and Equipment, Right-of-use Assets, Investment Properties, Intangible Assets Other Than Goodwill and Incremental Costs of Obtaining Contracts At the end of each reporting period, the Company reviews the carrying amounts of its property, plant and equipment, right-of-use assets, investment properties and intangible assets, excluding goodwill, to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss. When it is not possible to estimate the recoverable amount of an individual asset, the Company estimates the recoverable amount of the cash-generating unit to which the asset belongs. Intangible assets not yet available for use are tested for impairment at least annually, and whenever there is an indication that the asset may be impaired. Recoverable amount is the higher of fair value less costs to sell and value in use. If the recoverable amount of an asset or cash-generating unit is estimated to be less than its carrying amount, the carrying amount of the asset or cash-generating unit is reduced to its recoverable amount, with the resulting impairment loss recognized in profit or loss. Impairment loss from the assets related to incremental cost of obtaining contracts is recognized to the extent that the carrying amount of the assets exceeds the remaining amount of consideration that the Company expects to receive in exchange for related goods or services less the costs which relate directly to providing those goods or services. When an impairment loss is subsequently reversed, the carrying amount of the asset or cash-generating unit is increased to the revised estimate of its recoverable amount, but only to the extent of the carrying amount that would have been determined had no impairment loss been recognized for the asset or cash-generating unit in prior years. A reversal of an impairment loss is recognized in profit or loss. |
Financial Instruments | Financial Instruments Financial assets and financial liabilities are recognized when the Company becomes a party to the contractual provisions of the instruments. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through profit or loss) are added to the fair value of the financial assets or financial liabilities, as appropriate, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through profit or loss are recognized immediately in profit or loss. a. Financial assets All regular way purchases or sales of financial assets are recognized and derecognized on a trade date basis. The regular way of transaction means the purchase or sale of financial assets delivered within the time frame established by regulation or convention in the marketplace. 1) Measurement category a) Financial assets at fair value through profit or loss (FVTPL) Financial asset is classified as at FVTPL when the financial asset is mandatorily classified as at FVTPL. Financial assets mandatorily classified as at FVTPL include investments in equity instruments which are not designated as at fair value through other comprehensive income (FVOCI ). Financial assets at FVTPL are stated at fair value, with any gains or losses arising on remeasurement recognized in profit or loss. The net gain or loss recognized in profit or loss does not incorporate any dividend earned on the financial asset. Fair value is determined in the manner described in Note 38. b) Financial assets at amortized cost Financial assets that meet the following conditions are subsequently measured at amortized cost: i. The financial asset is held within a business model whose objective is to hold financial assets in order to collect contractual cash flows; and ii. The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Subsequent to initial recognition, financial assets at amortized cost are measured at amortized cost, which equals to gross carrying amount determined by the effective interest method less any impairment loss, except for short-term receivables as the effect of discounting is immaterial. Exchange differences are recognized in profit or loss. Interest income is calculated by applying the effective interest rate to the gross carrying amount of such financial assets. c) Investments in equity instruments at FVOCI On initial recognition, the Company may make an irrevocable election to designate investments in equity instruments as at FVOCI. Designation at FVOCI is not permitted if the equity investment is held for trading or if it is contingent consideration recognized by an acquirer in a business combination. Investments in equity instruments at FVOCI are subsequently measured at fair value with gains and losses arising from changes in fair value recognized in other comprehensive income and accumulated in other equity. The cumulative gain or loss will not be reclassified to profit or loss on disposal of the equity investments. Instead, it will be transferred to retained earnings. Dividends on these investments in equity instruments are recognized in profit or loss when the Company’s right to receive the dividends is established, unless the dividends clearly represent a recovery of part of the cost of the investment. 2) Impairment of financial assets and contract assets The Company recognizes a loss allowance for expected credit losses on financial assets at amortized cost (including accounts receivable) and contract assets. The Company recognizes lifetime Expected Credit Loss (ECL) for accounts receivable and contract assets. For all other financial instruments, the Company recognizes lifetime ECL when there has been a significant increase in credit risk since initial recognition. If, on the other hand, the credit risk on the financial instrument has not increased significantly since initial recognition, the Company measures the loss allowance for that financial instrument at an amount equal to 12-month ECL. Expected credit losses reflect the weighted average of credit losses with the respective risks of a default occurring as the weights. Lifetime ECL represents the expected credit losses that will result from all possible default events over the expected life of a financial instrument. In contrast, 12-month ECL represents the portion of ECL that is expected to result from default events on a financial instrument that are possible within 12 months after the reporting date . The Company recognizes an impairment loss for all financial instruments with a corresponding adjustment to their carrying amount through a loss allowance account. 3) Derecognition of financial assets The Company derecognizes a financial asset only when the contractual rights to the cash flows from the asset expire, or when it transfers the financial asset and substantially all the risks and rewards of ownership of the asset to another entity. On derecognition of a financial asset measured at amortized cost in its entirety, the difference between the asset’s carrying amount and the sum of the consideration received and receivable is recognized in profit or loss. On derecognition of investments in equity instruments at FVOCI in its entirety, the cumulative gain or loss is directly transferred to retained earnings, and it is not reclassified to profit or loss. b . Financial liabilities 1) Subsequent measurement Except for financial liabilities at FVTPL, all the financial liabilities are subsequently measured at amortized cost using the effective interest method. 2) Derecognition of financial liabilities The Company derecognizes financial liabilities when, and only when, the Company’s obligations are discharged, cancelled or expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash assets transferred or liabilities assumed, is recognized in profit or loss. c . Derivative financial instruments The Company enters into derivative financial instruments to manage its exposure to foreign exchange rate risks, including forward exchange contracts. Derivatives are initially measured at fair value at the date the derivative contracts are entered into and are subsequently remeasured to their fair value at the end of each reporting period. The resulting gain or loss is recognized in profit or loss immediately unless the derivative is designated and effective as a hedging instrument, in which event the timing of the recognition in profit or loss depends on the nature of the hedge relationship. When the fair value of derivative financial instruments is positive, the derivative is recognized as a financial asset; when the fair value of derivative financial instruments is negative, the derivative is recognized as a financial liability. |
Hedge Accounting | Hedge Accounting The Company designates some derivatives instruments as cash flow hedges. Hedges of foreign exchange risk on firm commitments are accounted for as cash flow hedges. The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income. The gain or loss relating to the ineffective portion is recognized immediately in profit or loss. The associated gains or losses that were recognized in other comprehensive income are reclassified from equity to profit or loss as a reclassification adjustment in the line item relating to the hedged item in the same period when the hedged item affects profit or loss. If a hedge of a forecast transaction subsequently results in the recognition of a non-financial asset or a non-financial liability, the associated gains and losses that were recognized in other comprehensive income are removed from equity and are included in the initial cost of the non-financial asset or non-financial liability . The Company discontinues hedge accounting only when the hedging relationship ceases to meet the qualifying criteria; for instance, when the hedging instrument expires or is sold, terminated or exercised. The cumulative gain or loss on the hedging instrument that has been previously recognized in other comprehensive income from the period when the hedge was effective remains separately in equity until the forecast transaction occurs. When a forecast transaction is no longer expected to occur, the gain or loss accumulated in equity is recognized immediately in profit or loss. |
Provisions | Provisions Provisions are measured at the best estimate of the expenditure required to settle the Company’s obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. The provisions for warranties claims are made by management according to the sales agreements which represent the management’s best estimate of the future outflow of economic benefits. The provisions of warranties claims are recognized as operating cost in the period in which the goods are sold. The provision for onerous contracts represents the present obligation resulting from the measurement for the unavoidable costs of meeting the Company’s contractual obligations exceed the economic benefits expected to be received from the contracts. |
Revenue Recognition | Revenue Recognition The Company identifies the performance obligations in the contract with the customers, allocates transaction price to each performance obligation and recognizes revenue when performance obligations are satisfied. Sales of products are recognized as revenue when the Company delivers products and the customer accepts and controls the product. Except for consumer electronic products such as mobile devices sold in channel stores usually in the form of cash, the Company recognizes revenues for sale of other electronic devices and corresponding trade notes and accounts receivable. Usage revenues from fixed-line services (including local, domestic long distance and international long distance telephone services), mobile services, internet and data services, and interconnection and call transfer fees from other telecommunications companies and carriers are billed in arrears and are recognized based upon seconds or minutes of traffic processed when the services are provided in accordance with contract terms. The usage revenues and corresponding trade notes and accounts receivable are recognized monthly. Other revenues are recognized as follows: (a) one-time subscriber connection fees (on fixed-line services) are first recognized as contract liabilities and revenues are recognized subsequently over the average expected customer service periods, (b) monthly fees (on fixed-line services, mobile, internet and data services) and related receivables are accrued monthly, and (c) prepaid services (fixed-line, mobile, internet and data services) are recognized as contract liabilities upon collection considerations from customers and are recognized as revenues subsequently based upon actual usage by customers. Where the Company enters into transactions which involve both the provision of telecommunications service bundled with products such as handsets, total consideration received from products and telecommunications service in these arrangements are allocated based on their relative standalone selling price. The amount of sales revenue recognized for products is not limited to the amount paid by the customer for the products. When the amount of sales revenue recognized for products exceeded the amount paid by the customer for the products, the difference is recognized as contract assets. Contract assets are reclassified to accounts receivable when the amounts become collectible from customers subsequently. When the amount of sales revenue recognized for products was less than the amount paid by the customer for the products, the difference is recognized as contract liabilities and revenues are recognized subsequently when the telecommunications services are provided . For project business contracts, if a substantial part of the Company’s promise to customers is to manage and coordinate the various tasks and assume the risks of those tasks to ensure the individual goods or services are incorporated into the combined output, they are treated as a single performance obligation since the Company provides a significant integration service. The Company recognizes revenues and corresponding accounts receivable when the project business contract is completed and accepted by customers. For some project contracts, the Company does not create an asset with an alternative use to the Company and has an enforceable right to payment for performance completed to date; therefore, performance obligations are satisfied and revenues are recognized over time. For service contracts such as maintenance and warranties, customers simultaneously receive and consume the benefits provided by the Company; thus, revenues and corresponding accounts receivable of service contracts are recognized over the related service period. When another party is involved in providing goods or services to a customer, the Company is acting as a principal if it controls the specified good or service before that good or service is transferred to a customer; otherwise, the Company is acting as an agent. When the Company is acting as a principal, gross inflow of economic benefits arising from transactions is recognized as revenue. When the Company is acting as an agent, revenue is recognized as its share of transaction. |
Incremental costs of obtaining contracts | Incremental Costs of Obtaining Contracts Commissions and equipment subsidy related to telecommunications service as a result of obtaining contracts are recognized as an asset under the incremental costs of obtaining contracts to the extent the costs are expected to be recovered and are amortized over the contract period. However, the Company elects not to capitalize the incremental costs of obtaining contracts if the amortization period of the assets that the Company otherwise would have recognized is expected to be one year or less. |
Leasing | Leasing At inception of a contract, the Company assesses whether the contract is, or contains, a lease. a. The Company as lessor Rental income from operating leases is recognized on a straight-line basis over the term of the relevant lease. b. The Company as lessee The Company recognizes right-of-use assets and lease liabilities for all leases at the commencement date of a lease, except for lease payments for low-value assets are recognized as expenses on a straight-line basis over the lease terms accounted for applying recognition exemption. Right-of-use assets are initially measured at cost, which comprises the initial measurement of lease liabilities and for lease payments made at or before the commencement date. Right-of-use assets are subsequently measured at cost less accumulated depreciation and accumulated impairment losses and adjusted for any remeasurement of the lease liabilities. Right-of-use assets are presented separately on the consolidated balance sheets. Right-of-use assets are depreciated using the straight-line basis from the commencement dates to the earlier of the end of the useful lives of the right-of-use assets or the end of the lease terms. Lease liabilities were initially measured at the present value of the lease payments, which comprise fixed payments, in-substance fixed payments, variable lease payments which depend on an index or a rate. The lease payments are discounted using the interest rate implicit in a lease, if that rate can be readily determined. If such rate cannot be readily determined, the lessee’s incremental borrowing rate is used . Lease liabilities are subsequently measured at amortized cost using the effective interest method, with interest expense recognized over the lease terms. When there is a change in a lease term or a change in future lease payments resulting from a change in an index or a rate used to determine those payments, the Company remeasures the lease liabilities with a corresponding adjustment to the right-of-use-assets. However, if the carrying amount of the right-of-use assets is reduced to zero, any remaining amount of the remeasurement is recognized in profit or loss. The Company accounts for the remeasurement of the lease liability as a result of the decrease of lease scope by decreasing the carrying amount of the right-of-use assets and recognizes in profit or loss any gain or loss on the partial or full termination of the lease. Lease liabilities are presented separately on the consolidated balance sheets. Variable lease payments not depending on an index or a rate are recognized as expenses in the periods in which they are incurred. |
Borrowing Costs | Borrowing Costs All borrowing costs are recognized in profit or loss in the period in which they are incurred. |
Government Grants | Government Grants Government grants are not recognized until there is reasonable assurance that the Company will comply with the conditions attached to government grants and that the grants will be received. Government grants related to income are recognized in profit or loss on a systematic basis over the periods in which the Company recognizes expenses of the related costs for which the grants are intended to compensate. Specifically, government grants whose primary condition is that the Company should construct noncurrent assets are recognized as deferred revenue and transferred to profit or loss on a systematic and rational basis over the useful lives of the related assets. Government grants that become receivable as compensation for expenses or losses already incurred are recognized in profit or loss in the period in which they become receivable. |
Employee Benefits | Employee Benefits a. Short-term employee benefits Liabilities recognized in respect of short-term employee benefits are measured at the undiscounted amount of the benefits expected to be paid in exchange for the related service. b. Retirement benefits Payments to defined contribution retirement benefit plans are recognized as an expense when employees have rendered service entitling them to the contributions. Defined benefit costs (including service cost, net interest and remeasurement) under the defined benefit retirement benefit plans are determined using the projected unit credit method. Service cost (including current service cost and gains or losses on settlements) and net interest on the net defined benefit liability (asset) are recognized as employee benefits expense in the period they occur. Remeasurement, comprising (a) actuarial gains and losses; and (b) the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset), is recognized in other comprehensive income in the period in which they occur. Remeasurement recognized in other comprehensive income is reflected immediately in retained earnings and will not be reclassified to profit or loss . Net defined benefit liability (asset) represents the actual deficit (surplus) in the Company’s defined benefit plan. Any surplus resulting from this calculation is limited to the present value of any refunds from the plans or reductions in future contributions to the plans. c. Other long-term employee benefits Other long-term employee benefits are accounted for in the same way as the accounting required for defined benefit plan except that remeasurement is recognized in profit or loss. |
Share-based Payment Arrangements - Employee Stock Options | Share-based Payment Arrangements - Employee Stock Options The fair value determined at the grant date of the employee share options is expensed on a straight-line basis over the vesting period, based on the Company’s estimate of employee stock options that are expected to ultimately vest, with a corresponding increase in additional paid-in capital - employee stock options. If the equity instruments granted vest immediately at the grant date, expenses are recognized in full in profit or loss. At the end of each reporting period, the Company revises its estimate of the number of employee share options expected to vest. The impact of the revision of the original estimates, if any, is recognized in profit or loss such that the cumulative expense reflects the revised estimate, with a corresponding adjustment to additional paid-in capital - employee stock options. |
Income Tax | Income Tax Income tax expense represents the sum of the tax currently payable and deferred tax. a. Current tax The current tax is based on taxable profit for the year. Taxable profit differs from profit as reported in the consolidated statements of comprehensive income because of items of income or expense that are taxable or deductible in other years and items that are never taxable or deductible. The Company’s liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the end of the reporting period. Income tax on unappropriated earnings is accrued during the period the earnings arise and adjusted to the extent that distributions are approved by the stockholders in the following year. Adjustments of prior years’ tax liabilities are added to or deducted from the current year’s tax provision. b. Deferred tax Deferred tax is recognized on temporary differences between the carrying amounts of assets and liabilities in the consolidated financial statements and the corresponding tax bases used in the computation of taxable profit. A deferred tax liability is not recognized on taxable temporary difference arising from initial recognition of goodwill. Deferred tax liabilities are generally recognized for all taxable temporary differences. Deferred tax assets are generally recognized for all deductible temporary differences, unused loss carry forward and unused tax credits from purchases of machinery, equipment and technology and research, and development expenditures, etc. to the extent that it is probable that taxable profits will be available against which those deductible temporary differences can be utilized. Deferred tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries, associates, and joint ventures, except where the Company is able to control the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. Deferred tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable profits against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future . The carrying amount of deferred tax assets is reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable profits will be available to allow all or part of the asset to be recovered. A previously unrecognized deferred tax asset is also reviewed at the end of each reporting period and recognized to the extent that it has become probable that future taxable profit will allow the deferred tax asset to be recovered. Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred tax assets and liabilities reflects the tax consequences that would follow from the manner in which the Company expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. c. Current and deferred tax Current and deferred tax are recognized in profit or loss, except when they relate to items that are recognized in other comprehensive income, in which case, the current and deferred tax are also recognized in other comprehensive income. Where current tax or deferred tax arises from the initial accounting for a business combination, the tax effect is included in the accounting for the business combination. |
Summary of Significant Accoun_3
Summary of Significant Accounting Policies (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Significant Investments In Subsidiaries [Abstract] | |
Detail Information of Subsidiaries | The detail information of the subsidiaries at the end of reporting period was as follows: Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Chunghwa Telecom Co., Ltd. Senao International Co., Ltd. (“SENAO”) Handset and peripherals retailer, sales of CHT mobile phone plans as an agent 28 28 a) Light Era Development Co., Ltd. (“LED”) Planning and development of real estate and intelligent buildings, and property management 100 100 Donghwa Telecom Co., Ltd. (“DHT”) International private leased circuit, IP VPN service, and IP transit services 100 100 b) Chunghwa Telecom Singapore Pte., Ltd. (“CHTS”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa System Integration Co., Ltd. (“CHSI”) Providing system integration services and telecommunications equipment 100 100 Chunghwa Investment Co., Ltd. (“CHI”) Investment 89 89 CHIEF Telecom Inc. (“CHIEF”) Network integration, internet data center (“IDC”), communications integration and cloud application services 56 56 c) CHYP Multimedia Marketing & Communications Co., Ltd. (“CHYP”) Digital information supply services and advertisement services 100 100 Prime Asia Investments Group Ltd. (B.V.I.) (“Prime Asia”) Investment 100 100 Spring House Entertainment Tech. Inc. (“SHE”) Software design services, internet contents production and play, and motion picture production and distribution 56 56 Chunghwa Telecom Global, Inc. (“CHTG”) International private leased circuit, internet services, and transit services 100 100 Chunghwa Telecom Vietnam Co., Ltd. (“CHTV”) Intelligent energy saving solutions, international circuit, and information and communication technology (“ICT”) services 100 100 Smartfun Digital Co., Ltd. (“SFD”) Providing diversified family education digital services 65 65 Chunghwa Telecom Japan Co., Ltd. (“CHTJ”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa Sochamp Technology Inc. (“CHST”) Design, development and production of Automatic License Plate Recognition software and hardware 51 51 Honghwa International Co., Ltd. (“HHI”) Telecommunications engineering, sales agent of mobile phone plan application and other business services, etc. 100 100 Chunghwa Leading Photonics Tech Co., Ltd. (“CLPT”) Production and sale of electronic components and finished products 75 75 Chunghwa Telecom (Thailand) Co., Ltd. (“CHTT”) International private leased circuit, IP VPN service, ICT and cloud VAS services 100 100 (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note CHT Security Co., Ltd. (“CHTSC”) Computing equipment installation, wholesale of computing and business machinery equipment and software, management consulting services, data processing services, digital information supply services and internet identify services 80 77 d) International Integrated Systems, Inc. (“IISI”) IT solution provider, IT application consultation, system integration and package solution 51 51 e) Senao International Co., Ltd. Senao International (Samoa) Holding Ltd. (“SIS”) International investment 100 100 f) Youth Co., Ltd. (“Youth”) Sale of information and communication technologies products 96 96 g) Aval Technologies Co., Ltd. (“Aval”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. (“SENYOUNG”) Property and liability insurance agency 100 100 Youth Co., Ltd. ISPOT Co., Ltd. (“ISPOT”) Sale of information and communication technologies products 100 100 Youyi Co., Ltd. (“Youyi”) Maintenance of information and communication technologies products 100 100 Aval Technologies Co., Ltd. Wiin Technology Co., Ltd. (“Wiin”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. Senaolife Insurance Agent Co., Ltd. (“Senaolife”) Life insurance services 100 100 CHIEF Telecom Inc. Unigate Telecom Inc. (“Unigate”) Telecommunications and internet service 100 100 Chief International Corp. (“CIC”) Telecommunications and internet service 100 100 Shanghai Chief Telecom Co., Ltd. (“SCT”) Telecommunications and internet service 49 49 h) Chunghwa Investment Co., Ltd. Chunghwa Precision Test Tech. Co., Ltd. (“CHPT”) Production and sale of semiconductor testing components and printed circuit board 34 34 i) Chunghwa Precision Test Tech. Co., Ltd. Chunghwa Precision Test Tech. USA Corporation (“CHPT (US)”) Design and after-sale services of semiconductor testing components and printed circuit board 100 100 j) CHPT Japan Co., Ltd. (“CHPT (JP)”) Related services of electronic parts, machinery processed products and printed circuit board 100 100 Chunghwa Precision Test Tech. International, Ltd. (“CHPT (International)”) Wholesale and retail of electronic materials, and investment 100 100 k) Senao International (Samoa) Holding Ltd. Senao International HK Limited (“SIHK”) International investment 100 100 l) (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Senao International HK Limited Senao International Trading (Shanghai) Co., Ltd. (“SITS”) Sale of information and communication technologies products 100 — m) Prime Asia Investments Group Ltd. (B.V.I.) Chunghwa Hsingta Co., Ltd. (“CHC”) Investment 100 100 Chunghwa Hsingta Co., Ltd. Chunghwa Telecom (China) Co., Ltd. (“CTC”) Integrated information and communication solution services for enterprise clients, and intelligent energy network service 100 100 n) Chunghwa Precision Test Tech. International, Ltd. Shanghai Taihua Electronic Technology Limited (“STET”) Design of printed circuit board and related consultation service 100 100 Su Zhou Precision Test Tech. Ltd. (“SZPT”) Assembly processed of circuit board, design of printed circuit board and related consultation service 100 100 o) International Integrated Systems, Inc. Infoexplorer International Co., Ltd.(“IESA”) Investment 100 100 p) IISI Investment Co., Ltd. (“IICL”) Investment 100 100 p) Unitronics Technology Corp. (“UTC”) Development and maintenance of information system 99.96 99.96 p) Infoexplorer International Co., Ltd. International Integrated Systems (Hong Kong) Limited (“IEHK”) Investment and technical consulting service 100 100 p) IISI Investment Co., Ltd. Leading Tech Co., Ltd. (“LTCL”) Investment 100 100 p) Leading Tech Co., Ltd. Leading Systems Co., Ltd. (“LSCL”) Investment 100 100 p) Leading Systems Co., Ltd. International Integrated Systems Inc. (Shanghai) (“IISS”) Development and maintenance of information system 100 — p) q) International Integrated Systems Inc. (Shanghai) Huiyu Shanghai Management Consultancy Co., Ltd. (“HSMC”) Development and maintenance of information system — — p) r) (Concluded) a ) Chunghwa continues to control six out of eleven seats of the Board of Directors of SENAO through the support of large beneficial stockholders. As a result, the Company treated SENAO as a subsidiary. b ) DHT reduced and returned its capital to its stakeholders in March 2021. The Company’s ownership interest in DHT remained the same c ) CHIEF issued new shares in March 2020, December 2020, March 2021 and December 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHIEF decreased to 59.08% and 58.89% as of December 31, 2020 and 2021, respectively. d ) CHTSC issued new shares in February 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHTSC decreased to 77.46% as of December 31, 2021. e ) Chunghwa obtained 20.38% ownership interest in IISI in July 2020 and Chunghwa’s ownership interest in IISI increased to 51.54% by considering the previously held ownership interest in IISI. Chunghwa obtained over half of the seats of the Board of Directors of IISI; therefore, Chunghwa gained control over IISI and treated it as a subsidiary. IISI issued new shares in September 2020 and January 2021 as its employees exercised options; therefore, the Company’s ownership interest in IISI decreased to 51.20% and 51.02% as of December 31, 2020 and 2021, respectively. f ) SIS reduced and returned its capital to its stakeholders in November 2020 and July 2021. SIS reduced 8.14% and 48.15% of its capital to offset accumulated deficits in February and October 2021, respectively. The Company’s ownership interest in SIS remained the same. g ) SENAO subscribed for all the shares in the capital increase of Youth in April 2020. Therefore, the Company’s ownership interest in Youth increased from 92.89% to 95.79%. h ) CHIEF has two out of three seats of the Board of Directors of SCT according to the mutual agreements among stockholders and gained control over SCT; hence, SCT is deemed as a subsidiary of the Company. i ) Though the Company’s ownership interest in CHPT is less than 50 %, the management considered the absolute and relative size of ownership interest, and the dispersion of shares owned by the other stockholders and concluded that the Company has a sufficiently dominant voting interest to direct the relevant activities; hence, CHPT is deemed as a subsidiary of the Company . j ) CHPT increased its investment in CHPT (US) proportionally in August 2021 and the Company’s ownership interest in CHPT (US) remained the same. k ) CHPT increased its investment in CHPT (International) proportionally in April 2021 and the Company’s ownership interest in CHPT (International) remained the same. l ) SIHK reduced and returned its capital to its stakeholders in November 2020 and May 2021. SIHK reduced 8.15% and 47.79% of its capital to offset accumulated deficits in January and August 2021, respectively. The Company’s ownership interest in SIHK remained the same. m ) SITS completed its liquidation in April 2021. n ) CTC was approved to end and dissolve its business in August 2020. The liquidation of CTC is still in process. o ) p ) It is a subsidiary of IISI. q ) IISS completed its liquidation in August 2021 r ) HSMC completed its liquidation in December 2020. |
Cash and Cash Equivalents (Tabl
Cash and Cash Equivalents (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Cash And Cash Equivalents [Abstract] | |
Summary of Cash and Cash Equivalents | December 31 2020 2021 NT$ NT$ (In Millions) Cash Cash on hand $ 487 $ 440 Bank deposits 10,961 15,647 11,448 16,087 Cash equivalents (with maturities of less than three months) Commercial papers $ 14,061 $ 13,530 Negotiable certificates of deposit 2,600 7,500 Time deposits 2,308 2,657 Stimulus vouchers 3 5 18,972 23,692 $ 30,420 $ 39,779 |
Annual Yield Rates of Bank Deposits, Commercial Paper, Negotiable Certificates of Deposit and Time Deposits and Repurchase Agreements Collateralized by Bonds | The annual yield rates of bank deposits, commercial papers, negotiable certificates of deposit and time deposits as of balance sheet dates were as follows: December 31 2020 2021 Bank deposits 0.00%-0.40% 0.00%-0.45% Commercial papers 0.14%-0.26% 0.17%-0.30% Negotiable certificates of deposit 0.24%-0.30% 0.27%-0.30% Time deposits 0.10%-3.60% 0.01%-3.60% |
Financial Instruments at Fair_2
Financial Instruments at Fair Value Through Profit or Loss (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Financial Instruments At Fair Value Through Profit Or Loss [Abstract] | |
Summary of Financial Instruments at Fair Value through Profit or Loss | December 31 2020 2021 NT$ NT$ (In Millions) Financial assets-current Mandatorily measured at FVTPL Derivatives (not designated for hedge) Forward exchange contracts $ 2 $ — Non-derivatives Listed stocks - domestic 8 3 $ 10 $ 3 Financial assets-noncurrent Mandatorily measured at FVTPL Non-derivatives Non-listed stocks - domestic $ 441 $ 648 Non-listed stocks - foreign 236 237 Limited partnership - domestic — 24 $ 677 $ 909 Financial liabilities-current Held for trading Derivatives (not designated for hedge) Forward exchange contracts $ — $ 6 |
Disclosure of Detailed Information Outstanding Derivative Contracts Not Designated for Hedge Explanatory | Outstanding forward exchange contracts not designated for hedge as of balance sheet dates were as follows: Maturity Contract Amount Currency Period (In Millions) December 31, 2020 Forward exchange contracts - buy NT$/EUR 2021.03 NT$50/EUR2 Forward exchange contracts - sell US$/NT$ 2021.02-03 US$14/NT379 December 31, 2021 Forward exchange contracts - buy NT$/EUR 2022.03 NT$257/EUR8 |
Financial Assets at Fair Valu_2
Financial Assets at Fair Value through Other Comprehensive Income Noncurrent (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Noncurrent Financial Assets At Fair Value Through Other Comprehensive Income [Abstract] | |
Summary of Financial Assets at Fair Value through Other Comprehensive Income Noncurrent | December 31 2020 2021 NT$ NT$ (In Millions) Domestic investments Listed stocks $ 2,754 $ 459 Non-listed stocks 4,325 3,030 Foreign investments Non-listed stocks 114 127 $ 7,193 $ 3,616 |
Trade Notes and Accounts Rece_2
Trade Notes and Accounts Receivable, Net (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Financial Assets [Line Items] | |
Movements of Allowance for Doubtful Accounts, Trade Notes and Accounts Receivable | Movements of loss allowance for trade notes and accounts receivable were as follows: Year Ended December 31 2020 2021 NT$ NT$ (In Millions) Beginning balance $ 2,360 $ 2,154 Add: Provision for credit loss 49 123 Add: Acquired by business combinations (Note 14) 2 — Less: Amounts written off (257 ) (672 ) Ending balance $ 2,154 $ 1,605 |
Trade notes and accounts receivable [Member] | |
Disclosure Of Financial Assets [Line Items] | |
Summary of Trade Notes and Accounts Receivable, Net | December 31 2020 2021 NT$ NT$ (In Millions) Trade notes and accounts receivable $ 24,776 $ 25,552 Less: Loss allowance (2,154 ) (1,605 ) $ 22,622 $ 23,947 |
Provision Matrix Arising from Telecommunications and Project Business | : December 31, 2020 Not Past Due Past Due Less than 30 Days Pass Due 31 to 60 Days Pass Due 61 to 90 Days Pass Due 91 to 120 Days Pass Due 121 to 180 Days Pass Due over 180 Days Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Telecommunications business Expected credit loss rate (Note a) 0%-2% 2%-24% 3%-68% 11%-83% 28%-90% 52%-96% 100% Gross carrying amount $ 15,839 $ 204 $ 51 $ 31 $ 30 $ 25 $ 626 $ 16,806 Loss allowance (Lifetime ECL) (56 ) (21 ) (24 ) (25 ) (24 ) (21 ) (626 ) (797 ) Amortized cost $ 15,783 $ 183 $ 27 $ 6 $ 6 $ 4 $ — $ 16,009 Project business Expected credit loss rate (Note b) 0%-5% 5% 10% 30% 50% 80% 100% Gross carrying amount $ 3,473 $ 64 $ 27 $ 9 $ 2 $ 3 $ 1,288 $ 4,866 Loss allowance (Lifetime ECL) (20 ) (3 ) (3 ) (3 ) (1 ) (2 ) (1,288 ) (1,320 ) Amortized cost $ 3,453 $ 61 $ 24 $ 6 $ 1 $ 1 $ — $ 3,546 December 31, 2021 Not Past Due Past Due Less than 30 Days Pass Due 31 to 60 Days Pass Due 61 to 90 Days Pass Due 91 to 120 Days Pass Due 121 to 180 Days Pass Due over 180 Days Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Telecommunications business Expected credit loss rate (Note a) 0%-1% 1%-22% 3%-62% 11%-80% 25%-90% 49%-97% 100% Gross carrying amount $ 16,411 $ 282 $ 82 $ 45 $ 31 $ 31 $ 603 $ 17,485 Loss allowance (Lifetime ECL) (51 ) (23 ) (29 ) (30 ) (25 ) (28 ) (603 ) (789 ) Amortized cost $ 16,360 $ 259 $ 53 $ 15 $ 6 $ 3 $ — $ 16,696 Project business Expected credit loss rate (Note b) 0%-5% 5% 10% 30% 50% 80% 100% Gross carrying amount $ 3,988 $ — $ 7 $ 14 $ — $ 2 $ 770 $ 4,781 Loss allowance (Lifetime ECL) (8 ) — (1 ) (4 ) — (1 ) (770 ) (784 ) Amortized cost $ 3,980 $ — $ 6 $ 10 $ — $ 1 $ — $ 3,997 Note a: Please refer to Notes 31 and 45 for the information of disaggregation of telecommunications service revenue. The expected credit loss rate applicable to different business revenue varies so as to reflect the risk level indicating by factors like historical experience. Note b : The project business has different loss types according to the customer types. The expected credit loss rate listed above is for general customers. When the customer is a government-affiliated entity, it is anticipated that there will not be an instance of credit loss. Customers with past history of bounced checks or accounts receivable exceeding six months overdue are classified as high-risk customers, with an expected credit loss rate of 50%, increasing by period as the days overdue increase. |
Inventories (Tables)
Inventories (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Classes Of Inventories [Abstract] | |
Summary of Inventories | December 31 2020 2021 NT$ NT$ (In Millions) Merchandise $ 3,903 $ 4,070 Project in process 6,167 4,805 Work in process 126 145 Raw materials 137 224 10,333 9,244 Land held under development 1,999 1,999 Construction in progress 77 84 $ 12,409 $ 11,327 |
Prepayments (Tables)
Prepayments (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Prepayments [Abstract] | |
Summary of Prepayments | December 31 2020 2021 NT$ NT$ (In Millions) Prepaid rents $ 2,864 $ 2,349 Others 1,656 1,779 $ 4,520 $ 4,128 Current Prepaid rents $ 652 $ 566 Others 1,654 1,764 $ 2,306 $ 2,330 Noncurrent Prepaid rents $ 2,212 $ 1,783 Others 2 15 $ 2,214 $ 1,798 |
Other Current Monetary Assets (
Other Current Monetary Assets (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Other Current Monetary Assets [Abstract] | |
Disclosure Of Detailed Information About Other Current Monetary Assets Explanatory | December 31 2020 2021 NT$ NT$ (In Millions) Time deposits and negotiable certificates of deposit with maturities of more than three months $ 4,596 $ 3,499 Others 1,528 1,562 $ 6,124 $ 5,061 |
Annual Yield Rates of Time Deposits, Negotiable Certificates of Deposits and Repurchase Agreements Collateralized by Bonds with Maturities of more Than Three Months | The annual yield rates of time deposits and negotiable certificates of deposit with maturities of more than three months at the balance sheet dates were as follows: December 31 2020 2021 Time deposits and negotiable certificates of deposit with maturities of more than three months 0.07%-2.25% 0.03%-2.70% |
Subsidiaries (Tables)
Subsidiaries (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure of subsidiaries [Line Items] | |
Detail Information of Subsidiaries | The detail information of the subsidiaries at the end of reporting period was as follows: Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Chunghwa Telecom Co., Ltd. Senao International Co., Ltd. (“SENAO”) Handset and peripherals retailer, sales of CHT mobile phone plans as an agent 28 28 a) Light Era Development Co., Ltd. (“LED”) Planning and development of real estate and intelligent buildings, and property management 100 100 Donghwa Telecom Co., Ltd. (“DHT”) International private leased circuit, IP VPN service, and IP transit services 100 100 b) Chunghwa Telecom Singapore Pte., Ltd. (“CHTS”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa System Integration Co., Ltd. (“CHSI”) Providing system integration services and telecommunications equipment 100 100 Chunghwa Investment Co., Ltd. (“CHI”) Investment 89 89 CHIEF Telecom Inc. (“CHIEF”) Network integration, internet data center (“IDC”), communications integration and cloud application services 56 56 c) CHYP Multimedia Marketing & Communications Co., Ltd. (“CHYP”) Digital information supply services and advertisement services 100 100 Prime Asia Investments Group Ltd. (B.V.I.) (“Prime Asia”) Investment 100 100 Spring House Entertainment Tech. Inc. (“SHE”) Software design services, internet contents production and play, and motion picture production and distribution 56 56 Chunghwa Telecom Global, Inc. (“CHTG”) International private leased circuit, internet services, and transit services 100 100 Chunghwa Telecom Vietnam Co., Ltd. (“CHTV”) Intelligent energy saving solutions, international circuit, and information and communication technology (“ICT”) services 100 100 Smartfun Digital Co., Ltd. (“SFD”) Providing diversified family education digital services 65 65 Chunghwa Telecom Japan Co., Ltd. (“CHTJ”) International private leased circuit, IP VPN service, and IP transit services 100 100 Chunghwa Sochamp Technology Inc. (“CHST”) Design, development and production of Automatic License Plate Recognition software and hardware 51 51 Honghwa International Co., Ltd. (“HHI”) Telecommunications engineering, sales agent of mobile phone plan application and other business services, etc. 100 100 Chunghwa Leading Photonics Tech Co., Ltd. (“CLPT”) Production and sale of electronic components and finished products 75 75 Chunghwa Telecom (Thailand) Co., Ltd. (“CHTT”) International private leased circuit, IP VPN service, ICT and cloud VAS services 100 100 (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note CHT Security Co., Ltd. (“CHTSC”) Computing equipment installation, wholesale of computing and business machinery equipment and software, management consulting services, data processing services, digital information supply services and internet identify services 80 77 d) International Integrated Systems, Inc. (“IISI”) IT solution provider, IT application consultation, system integration and package solution 51 51 e) Senao International Co., Ltd. Senao International (Samoa) Holding Ltd. (“SIS”) International investment 100 100 f) Youth Co., Ltd. (“Youth”) Sale of information and communication technologies products 96 96 g) Aval Technologies Co., Ltd. (“Aval”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. (“SENYOUNG”) Property and liability insurance agency 100 100 Youth Co., Ltd. ISPOT Co., Ltd. (“ISPOT”) Sale of information and communication technologies products 100 100 Youyi Co., Ltd. (“Youyi”) Maintenance of information and communication technologies products 100 100 Aval Technologies Co., Ltd. Wiin Technology Co., Ltd. (“Wiin”) Sale of information and communication technologies products 100 100 Senyoung Insurance Agent Co., Ltd. Senaolife Insurance Agent Co., Ltd. (“Senaolife”) Life insurance services 100 100 CHIEF Telecom Inc. Unigate Telecom Inc. (“Unigate”) Telecommunications and internet service 100 100 Chief International Corp. (“CIC”) Telecommunications and internet service 100 100 Shanghai Chief Telecom Co., Ltd. (“SCT”) Telecommunications and internet service 49 49 h) Chunghwa Investment Co., Ltd. Chunghwa Precision Test Tech. Co., Ltd. (“CHPT”) Production and sale of semiconductor testing components and printed circuit board 34 34 i) Chunghwa Precision Test Tech. Co., Ltd. Chunghwa Precision Test Tech. USA Corporation (“CHPT (US)”) Design and after-sale services of semiconductor testing components and printed circuit board 100 100 j) CHPT Japan Co., Ltd. (“CHPT (JP)”) Related services of electronic parts, machinery processed products and printed circuit board 100 100 Chunghwa Precision Test Tech. International, Ltd. (“CHPT (International)”) Wholesale and retail of electronic materials, and investment 100 100 k) Senao International (Samoa) Holding Ltd. Senao International HK Limited (“SIHK”) International investment 100 100 l) (Continued) Percentage of Ownership interests December 31 Name of Investor Name of Investee Main Businesses and Products 2020 2021 Note Senao International HK Limited Senao International Trading (Shanghai) Co., Ltd. (“SITS”) Sale of information and communication technologies products 100 — m) Prime Asia Investments Group Ltd. (B.V.I.) Chunghwa Hsingta Co., Ltd. (“CHC”) Investment 100 100 Chunghwa Hsingta Co., Ltd. Chunghwa Telecom (China) Co., Ltd. (“CTC”) Integrated information and communication solution services for enterprise clients, and intelligent energy network service 100 100 n) Chunghwa Precision Test Tech. International, Ltd. Shanghai Taihua Electronic Technology Limited (“STET”) Design of printed circuit board and related consultation service 100 100 Su Zhou Precision Test Tech. Ltd. (“SZPT”) Assembly processed of circuit board, design of printed circuit board and related consultation service 100 100 o) International Integrated Systems, Inc. Infoexplorer International Co., Ltd.(“IESA”) Investment 100 100 p) IISI Investment Co., Ltd. (“IICL”) Investment 100 100 p) Unitronics Technology Corp. (“UTC”) Development and maintenance of information system 99.96 99.96 p) Infoexplorer International Co., Ltd. International Integrated Systems (Hong Kong) Limited (“IEHK”) Investment and technical consulting service 100 100 p) IISI Investment Co., Ltd. Leading Tech Co., Ltd. (“LTCL”) Investment 100 100 p) Leading Tech Co., Ltd. Leading Systems Co., Ltd. (“LSCL”) Investment 100 100 p) Leading Systems Co., Ltd. International Integrated Systems Inc. (Shanghai) (“IISS”) Development and maintenance of information system 100 — p) q) International Integrated Systems Inc. (Shanghai) Huiyu Shanghai Management Consultancy Co., Ltd. (“HSMC”) Development and maintenance of information system — — p) r) (Concluded) a ) Chunghwa continues to control six out of eleven seats of the Board of Directors of SENAO through the support of large beneficial stockholders. As a result, the Company treated SENAO as a subsidiary. b ) DHT reduced and returned its capital to its stakeholders in March 2021. The Company’s ownership interest in DHT remained the same c ) CHIEF issued new shares in March 2020, December 2020, March 2021 and December 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHIEF decreased to 59.08% and 58.89% as of December 31, 2020 and 2021, respectively. d ) CHTSC issued new shares in February 2021 as its employees exercised options. Therefore, the Company’s ownership interest in CHTSC decreased to 77.46% as of December 31, 2021. e ) Chunghwa obtained 20.38% ownership interest in IISI in July 2020 and Chunghwa’s ownership interest in IISI increased to 51.54% by considering the previously held ownership interest in IISI. Chunghwa obtained over half of the seats of the Board of Directors of IISI; therefore, Chunghwa gained control over IISI and treated it as a subsidiary. IISI issued new shares in September 2020 and January 2021 as its employees exercised options; therefore, the Company’s ownership interest in IISI decreased to 51.20% and 51.02% as of December 31, 2020 and 2021, respectively. f ) SIS reduced and returned its capital to its stakeholders in November 2020 and July 2021. SIS reduced 8.14% and 48.15% of its capital to offset accumulated deficits in February and October 2021, respectively. The Company’s ownership interest in SIS remained the same. g ) SENAO subscribed for all the shares in the capital increase of Youth in April 2020. Therefore, the Company’s ownership interest in Youth increased from 92.89% to 95.79%. h ) CHIEF has two out of three seats of the Board of Directors of SCT according to the mutual agreements among stockholders and gained control over SCT; hence, SCT is deemed as a subsidiary of the Company. i ) Though the Company’s ownership interest in CHPT is less than 50 %, the management considered the absolute and relative size of ownership interest, and the dispersion of shares owned by the other stockholders and concluded that the Company has a sufficiently dominant voting interest to direct the relevant activities; hence, CHPT is deemed as a subsidiary of the Company . j ) CHPT increased its investment in CHPT (US) proportionally in August 2021 and the Company’s ownership interest in CHPT (US) remained the same. k ) CHPT increased its investment in CHPT (International) proportionally in April 2021 and the Company’s ownership interest in CHPT (International) remained the same. l ) SIHK reduced and returned its capital to its stakeholders in November 2020 and May 2021. SIHK reduced 8.15% and 47.79% of its capital to offset accumulated deficits in January and August 2021, respectively. The Company’s ownership interest in SIHK remained the same. m ) SITS completed its liquidation in April 2021. n ) CTC was approved to end and dissolve its business in August 2020. The liquidation of CTC is still in process. o ) p ) It is a subsidiary of IISI. q ) IISS completed its liquidation in August 2021 r ) HSMC completed its liquidation in December 2020. |
Detailed Information of Equity Transactions | The detailed information of the equity transactions for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 CHIEF Share-Based Payment NT$ (In Millions) Cash consideration received from noncontrolling interests $ 19 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (20 ) Differences arising from equity transactions $ (1 ) Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ (1 ) Year Ended December 31, 2020 CHIEF Share-Based Payment SENAO Not Proportionately Participating in the Capital Increase of Youth IISI Share-Based Payment NT$ NT$ NT$ (In Millions) Cash consideration received from noncontrolling interests $ 75 $ — $ 7 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (49 ) — (7 ) Differences arising from equity transactions $ 26 $ — $ — Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ 26 $ — $ — Year Ended December 31, 2021 CHIEF Share-Based Payment CHTSC Share-Based Payment IISI Share-Based Payment NT$ NT$ NT$ (In Millions) Cash consideration received from noncontrolling interests $ 29 $ 21 $ 4 The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests (17 ) (19 ) (1 ) Differences arising from equity transactions $ 12 $ 2 $ 3 Line items for equity transaction adjustments Additional paid-in capital - arising from changes in equities of subsidiaries $ 12 $ 2 $ 3 |
Summary of Assets Acquired and Liabilities Assumed | 2) Assets acquired and liabilities assumed at acquisition date IISI and Its Subsidiaries Current assets Cash and cash equivalents $ 588 Contract assets 583 Trade notes and accounts receivable 165 Inventories 141 Prepayments 114 Other current monetary assets 114 Other current assets 75 Noncurrent assets Property, plant and equipment 48 Right-of-use assets 70 Intangible assets 12 Deferred income tax assets 6 Other noncurrent assets 102 Current liabilities Short-term loans (4 ) Contract liabilities (334 ) Trade notes and accounts payable (257 ) Current tax liabilities (19 ) Lease liabilities (26 ) Other payables (266 ) Provisions (15 ) Other current liabilities (30 ) Noncurrent liabilities Deferred income tax liabilities (3 ) Lease liabilities (45 ) Net defined benefit liabilities (32 ) Other noncurrent liabilities (5 ) $ 982 |
Summary of Goodwill Arising from Acquisition | 3) Goodwill arising from acquisition IISI and Its Subsidiaries Consideration transferred $ 234 Add: Fair value of equity interest held before the acquisition date 327 Add: Noncontrolling interest (48.46% of the identifiable net assets of IISI 476 Less: Fair value of identifiable net assets acquired (982 ) Goodwill arising from acquisition $ 55 |
Disclosure Of Net Cash Inflow On Acquisition Of Subsidiaries Explanatory | 4) Net cash inflow on acquisition of subsidiaries IISI and Its Subsidiaries Cash and cash equivalents acquired $ 588 Less: Consideration paid in cash (234 ) $ 354 |
Summary of Impact of Acquisition on Financial Results of Company | 5) Impact of acquisition on the financial results of the Company The financial results of the acquiree since the acquisition date to December 31, 2020 included in the consolidated statements of comprehensive income are as follows: IISI and Its Subsidiaries Revenue $ 1,348 Profit $ 68 |
Less than wholly owned subsidiaries that have material noncontrolling interests [Member] | |
Disclosure of subsidiaries [Line Items] | |
Detail Information of Subsidiaries | The table below shows details of less than wholly owned subsidiaries of the Company that have material noncontrolling interests: Place of Incorporation Proportion of Ownership Interests and Voting Rights Held by Noncontrolling Interests and Principal December 31 Subsidiaries Place of Business 2020 2021 SENAO Taiwan 72% 72% CHPT Taiwan 66% 66% Profit Allocated to Noncontrolling Interests Accumulated Noncontrolling Interests Year Ended December 31 December 31 2019 2020 2021 2020 2021 NT$ NT$ NT$ NT$ NT$ (In Millions) SENAO $ 291 $ 312 $ 421 $ 4,189 $ 4,337 CHPT $ 414 $ 604 $ 588 4,606 4,933 Individually immaterial subsidiaries with noncontrolling interests 2,363 2,477 $ 11,158 $ 11,747 |
Summarized Financial Information Before Intercompany Eliminations | The summarized financial information below represented amounts before intercompany eliminations. December 31 2020 2021 NT$ NT$ (In Millions) Current assets $ 6,834 $ 7,963 Noncurrent assets $ 3,194 $ 2,981 Current liabilities $ 3,854 $ 4,561 Noncurrent liabilities $ 416 $ 418 Equity attributable to the parent $ 1,569 $ 1,628 Equity attributable to noncontrolling interests $ 4,189 $ 4,337 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenues and income $ 29,131 $ 27,232 $ 31,302 Costs and expenses 28,725 26,797 30,715 Profit for the year $ 406 $ 435 $ 587 Profit attributable to the parent $ 115 $ 123 $ 166 Profit attributable to noncontrolling interests 291 312 421 Profit for the year $ 406 $ 435 $ 587 Other comprehensive income (loss) attributable to the parent $ (7 ) $ 1 $ 2 Other comprehensive income attributable to noncontrolling interests 22 2 5 Other comprehensive income for the year $ 15 $ 3 $ 7 Total comprehensive income attributable to the parent $ 108 $ 124 $ 168 Total comprehensive income attributable to noncontrolling interests 313 314 426 Total comprehensive income for the year $ 421 $ 438 $ 594 Net cash flow from operating activities $ 538 $ 862 $ 654 Net cash flow from investing activities 235 54 215 Net cash flow from financing activities (718 ) (687 ) (690 ) Effect of exchange rate changes on cash and cash equivalents — — — Net cash inflow $ 55 $ 229 $ 179 Dividends paid to noncontrolling interests $ 269 $ 269 $ 278 December 31 2020 2021 NT$ NT$ (In Millions) Current assets $ 4,122 $ 4,657 Noncurrent assets $ 4,013 $ 4,063 Current liabilities $ 1,115 $ 1,183 Noncurrent liabilities $ 12 $ 32 Equity attributable to CHI $ 2,402 $ 2,572 Equity attributable to noncontrolling interests $ 4,606 $ 4,933 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenues and income $ 3,404 $ 4,221 $ 4,254 Costs and expenses 2,775 3,301 3,360 Profit for the year $ 629 $ 920 $ 894 Profit attributable to CHI $ 215 $ 316 $ 306 Profit attributable to noncontrolling interests 414 604 588 Profit for the year $ 629 $ 920 $ 894 Other comprehensive loss attributable to CHI $ (1 ) $ — $ (1 ) Other comprehensive loss attributable to noncontrolling interests (2 ) — (2 ) Other comprehensive loss for the year $ (3 ) $ — $ (3 ) Total comprehensive income attributable to CHI $ 214 $ 316 $ 305 Total comprehensive income attributable to noncontrolling interests 412 604 586 Total comprehensive income for the year $ 626 $ 920 $ 891 Net cash flow from operating activities $ 507 $ 1,483 $ 1,090 Net cash flow from investing activities (1,426 ) (533 ) (519 ) Net cash flow from financing activities (349 ) (349 ) (414 ) Effect of exchange rate changes on cash and cash equivalents (5 ) 1 (1 ) Net cash inflow (outflow) $ (1,273 ) $ 602 $ 156 Dividends paid to noncontrolling interests $ 216 $ 216 $ 259 |
Investments Accounted for Usi_2
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 $ — $ — |
Property, Plant and Equipment (
Property, Plant and Equipment (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Summary of Assets Used by the Company Explanatory | December 31 2020 2021 NT$ NT$ (In Millions) Assets used by the Company $ 273,823 $ 281,849 Assets subject to operating leases 7,593 7,251 $ 281,416 $ 289,100 |
Summary of Property, Plant and Equipment | Land Land Improvements Buildings Computer Equipment Telecommuni- cations Equipment Transportation Equipment Miscellaneous Equipment Construction in Progress and Equipment to be Accepted Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Accumulated depreciation and impairment Balance on January 1, 2020 $ — $ (1,375 ) $ (27,977 ) $ (11,068 ) $ (590,338 ) $ (3,694 ) $ (7,662 ) $ (29 ) $ (642,143 ) Depreciation expenses — (43 ) (1,366 ) (770 ) (23,994 ) (68 ) (666 ) — (26,907 ) Disposal — 19 49 1,243 20,600 45 504 29 22,489 Effect of foreign exchange differences — — — — 41 — — — 41 Acquired by business combinations (Note 14) — — — (40 ) — — (54 ) — (94 ) Others — — 47 (4 ) 28 (1 ) (48 ) — 22 Balance on December 31, 2020 $ — $ (1,399 ) $ (29,247 ) $ (10,639 ) $ (593,663 ) $ (3,718 ) $ (7,926 ) $ — $ (646,592 ) Balance on December 31, 2020, net $ 101,991 $ 231 $ 41,642 $ 1,767 $ 117,113 $ 176 $ 2,374 $ 8,529 $ 273,823 Cost Balance on January 1, 2021 $ 101,991 $ 1,630 $ 70,889 $ 12,406 $ 710,776 $ 3,894 $ 10,300 $ 8,529 $ 920,415 Additions — — 37 72 84 — 198 35,222 35,613 Disposal — (1 ) (29 ) (1,734 ) (27,916 ) (84 ) (470 ) — (30,234 ) Effect of foreign exchange differences — — — — (64 ) — (2 ) (6 ) (72 ) Others 654 33 461 473 30,654 117 783 (32,959 ) 216 Balance on December 31, 2021 $ 102,645 $ 1,662 $ 71,358 $ 11,217 $ 713,534 $ 3,927 $ 10,809 $ 10,786 $ 925,938 Accumulated depreciation and impairment Balance on January 1, 2021 $ — $ (1,399 ) $ (29,247 ) $ (10,639 ) $ (593,663 ) $ (3,718 ) $ (7,926 ) $ — $ (646,592 ) Depreciation expenses — (43 ) (1,401 ) (716 ) (24,802 ) (65 ) (701 ) — (27,728 ) Disposal — 1 29 1,724 27,900 84 466 — 30,204 Effect of foreign exchange differences — — — — 31 — 1 — 32 Others — (1 ) 41 (1 ) 1 — (45 ) — (5 ) Balance on December 31, 2021 $ — $ (1,442 ) $ (30,578 ) $ (9,632 ) $ (590,533 ) $ (3,699 ) $ (8,205 ) $ — $ (644,089 ) Balance on December 31, 2021, net $ 102,645 $ 220 $ 40,780 $ 1,585 $ 123,001 $ 228 $ 2,604 $ 10,786 $ 281,849 (Concluded) |
Disclosure Of Property Plant And Equipment Estimated Useful Life Explanatory | Depreciation expense for assets used by the Company is computed using the straight-line method over the following estimated service lives: Land improvements 10-30 years Buildings Main buildings 20-60 years Other building facilities 3-15 years Computer equipment 1-8 years Telecommunications equipment Telecommunication circuits 2-30 years Telecommunication machinery and antennas equipment 2-30 years Transportation equipment 3-10 years Miscellaneous equipment Leasehold improvements 1-9 years Mechanical and air conditioner equipment 3-16 years Others 1-15 years |
Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment | The future aggregate lease collection under operating lease for investment properties is as follows: December 31 2020 2021 NT$ NT$ (In Millions) Year 1 $ 115 $ 107 Year 2 95 82 Year 3 75 62 Year 4 53 55 Year 5 38 39 Onwards 58 78 $ 434 $ 423 |
Property, plant and equipment subject to operating leases [member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Disclosure Of Property Plant And Equipment Estimated Useful Life Explanatory | The above items of property, plant and equipment subject to operating leases are depreciated on a straight-line basis over their estimated useful lives as follows: Land improvements 10-30 years Buildings Main buildings 35-60 years Other building facilities 3-15 years |
Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment | The future aggregate lease collection under operating lease for the freehold plant, property and equipment was as follows: December 31 2020 2021 NT$ NT$ (In Millions) Year 1 $ 347 $ 371 Year 2 288 301 Year 3 231 210 Year 4 164 159 Year 5 125 135 Onwards 1,180 1,177 $ 2,335 $ 2,353 |
Assets Used by the Company [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Summary of Property, Plant and Equipment | a. Assets used by the Company Land Land Improvements Buildings Computer Equipment Telecommuni- cations Equipment Transportation Equipment Miscellaneous Equipment Construction in Progress and Equipment to be Accepted Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Cost Balance on January 1, 2019 $ 100,355 $ 1,600 $ 69,328 $ 14,258 $ 711,863 $ 3,882 $ 9,874 $ 18,645 $ 929,805 Additions — — 1,221 57 120 1 149 21,612 23,160 Disposal (38 ) (7 ) (3 ) (1,916 ) (30,417 ) (51 ) (405 ) — (32,837 ) Effect of foreign exchange differences — — — — (37 ) — (1 ) (6 ) (44 ) Others (1,214 ) 25 455 606 24,503 80 473 (26,499 ) (1,571 ) Balance on December 31, 2019 $ 99,103 $ 1,618 $ 71,001 $ 13,005 $ 706,032 $ 3,912 $ 10,090 $ 13,752 $ 918,513 Accumulated depreciation and impairment Balance on January 1, 2019 $ — $ (1,337 ) $ (26,862 ) $ (12,143 ) $ (596,850 ) $ (3,651 ) $ (7,292 ) $ — $ (648,135 ) Depreciation expenses — (43 ) (1,301 ) (827 ) (23,906 ) (91 ) (688 ) — (26,856 ) Disposal — 6 3 1,909 30,380 51 402 — 32,751 Impairment losses — — — — — — (64 ) (29 ) (93 ) Effect of foreign exchange differences — — — — 16 — 1 — 17 Others — (1 ) 183 (7 ) 22 (3 ) (21 ) — 173 Balance on December 31, 2019 $ — $ (1,375 ) $ (27,977 ) $ (11,068 ) $ (590,338 ) $ (3,694 ) $ (7,662 ) $ (29 ) $ (642,143 ) Balance on January 1, 2019, net $ 100,355 $ 263 $ 42,466 $ 2,115 $ 115,013 $ 231 $ 2,582 $ 18,645 $ 281,670 Balance on December 31, 2019, net $ 99,103 $ 243 $ 43,024 $ 1,937 $ 115,694 $ 218 $ 2,428 $ 13,723 $ 276,370 Cost Balance on January 1, 2020 $ 99,103 $ 1,618 $ 71,001 $ 13,005 $ 706,032 $ 3,912 $ 10,090 $ 13,752 $ 918,513 Additions 67 — 18 55 118 1 150 24,786 25,195 Disposal (270 ) (19 ) (49 ) (1,245 ) (20,619 ) (45 ) (520 ) (29 ) (22,796 ) Effect of foreign exchange differences — — — — (91 ) — — (7 ) (98 ) Acquired by business combinations (Note 14) — — — 70 — — 72 — 142 Others 3,091 31 (81 ) 521 25,336 26 508 (29,973 ) (541 ) Balance on December 31, 2020 $ 101,991 $ 1,630 $ 70,889 $ 12,406 $ 710,776 $ 3,894 $ 10,300 $ 8,529 $ 920,415 |
Lease Arrangements (Tables)
Lease Arrangements (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Quantitative Information About Leases For Lessee [Abstract] | |
Summary of Right-of-use Assets | a. December 31 2020 2021 NT$ NT$ (In Millions) Land and buildings Handsets base stations $ 7,096 $ 6,988 Others 1,708 1,538 Equipment 2,205 2,525 $ 11,009 $ 11,051 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Additions to right-of-use assets $ 3,803 $ 3,796 $ 4,669 Depreciation charge for right-of-use assets Land and buildings Handsets base stations $ 2,728 $ 2,729 $ 2,789 Others 821 786 786 Equipment 419 416 410 $ 3,968 $ 3,931 $ 3,985 |
Summary of Lease Liabilities | b. December 31 2020 2021 NT$ NT$ (In Millions) Lease liabilities Current $ 3,382 $ 3,211 Noncurrent 6,215 7,062 $ 9,597 $ 10,273 |
Summary of Range of Discount Rate for Lease Liabilities | Ranges of discount rates for lease liabilities were as follows: December 31 2020 2021 Land and buildings Handsets base stations 0.46%-1.18% 0.37%-1.18% Others 0.46%-9.00% 0.37%-9.00% Equipment 0.46%-2.99% 0.37%-2.99% |
Summary of Total Cash Outflow for Leases | d. Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Expenses relating to low-value asset leases $ 7 $ 8 $ 8 Expenses relating to variable lease payments not included in the measurement of lease liabilities $ 6 $ 5 $ 7 Total cash outflow for leases $ 3,826 $ 3,776 $ 3,813 |
Investment Properties (Tables)
Investment Properties (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Investment Property [Abstract] | |
Summary of Investment Properties | December 31 2020 2021 NT$ NT$ (In Millions) Carrying amount Investment properties $ 9,621 $ 9,663 Investment Properties NT$ (In Millions) Cost Balance on January 1, 2019 $ 9,392 Additions 1 Disposal (6 ) Reclassification (173 ) Balance on December 31, 2019 $ 9,214 Accumulated depreciation and impairment Balance on January 1, 2019 $ (1,105 ) Depreciation expense (25 ) Disposal 6 Reclassification 22 Reversal of impairment loss 57 Balance on December 31, 2019 $ (1,045 ) Balance on January 1, 2019, net $ 8,287 Balance on December 31, 2019, net $ 8,169 Cost Balance on January 1, 2020 $ 9,214 Additions (Note 16) 1,359 Disposal (37 ) Reclassification 126 Balance on December 31, 2020 $ 10,662 Accumulated depreciation and impairment Balance on January 1, 2020 $ (1,045 ) Depreciation expense (22 ) Reclassification (1 ) Reversal of impairment loss 27 Balance on December 31, 2020 $ (1,041 ) Balance on December 31, 2020, net $ 9,621 Cost Balance on January 1, 2021 $ 10,662 Additions 1 Balance on December 31, 2021 $ 10,663 Accumulated depreciation and impairment Balance on January 1, 2021 $ (1,041 ) Depreciation expense (42 ) Reversal of impairment loss 83 Balance on December 31, 2021 $ (1,000 ) Balance on December 31, 2021, net $ 9,663 |
Estimated Service Lives of Investment Properties | Depreciation expense is computed using the straight-line method over the following estimated service lives: Land improvements 10-30 years Buildings Main buildings 35-60 years Other building facilities 4-10 years |
Key Assumptions and Fair Values of Investment Properties | The fair values of the Company’s investment properties as of December 31, 2020 and 2021 were determined by Level 3 fair value measurements inputs based on the appraisal reports conducted by independent appraisers. Those appraisal reports are based on the comparison approach, income approach or cost approach. Key assumptions and the fair values were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Fair value $ 22,644 $ 25,548 Overall capital interest rate 0.93%-3.03% 0.91%-3.05% Profit margin ratio 12%-20% 8%-20% Discount rate — — Capitalization rate 0.73%-2.20% 0.53%-2.11% |
Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment | The future aggregate lease collection under operating lease for investment properties is as follows: December 31 2020 2021 NT$ NT$ (In Millions) Year 1 $ 115 $ 107 Year 2 95 82 Year 3 75 62 Year 4 53 55 Year 5 38 39 Onwards 58 78 $ 434 $ 423 |
Intangible Assets (Tables)
Intangible Assets (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Intangible Assets [Abstract] | |
Summary of Intangible Assets | December 31 2020 2021 NT$ NT$ (In Millions) Carrying amount Mobile Broadband Concession $ 89,019 $ 82,820 Computer software 788 673 Goodwill 246 217 Others 232 235 $ 90,285 $ 83,945 Mobile Broadband Concession Computer Software Goodwill Others Total NT$ NT$ NT$ NT$ NT$ (In Millions) 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 differences — — — — — 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 differences — — — — — Balance on December 31, 2019 $ (14,293 ) $ (2,499 ) $ (36 ) $ (134 ) $ (16,962 ) Balance on January 1, 2019, net $ 49,512 $ 959 $ 209 $ 264 $ 50,944 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 differences — — — — — 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 differences — — — — — 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 Cost Balance on January 1, 2021 $ 108,338 $ 3,320 $ 291 $ 392 $ 112,341 Additions-acquired separately — 225 — 31 256 Disposal — (344 ) — (10 ) (354 ) Effect of foreign exchange differences — — — — — Others — 2 — — 2 Balance on December 31, 2021 $ 108,338 $ 3,203 $ 291 $ 413 $ 112,245 Accumulated amortization and impairment Balance on January 1, 2021 $ (19,319 ) $ (2,532 ) $ (45 ) $ (160 ) $ (22,056 ) Amortization expenses (6,199 ) (341 ) — (29 ) (6,569 ) Disposal — 343 — 11 354 Impairment losses — — (29 ) — (29 ) Effect of foreign exchange differences — — — — — Others — — — — — Balance on December 31, 2021 $ (25,518 ) $ (2,530 ) $ (74 ) $ (178 ) $ (28,300 ) Balance on December 31, 2021, net $ 82,820 $ 673 $ 217 $ 235 $ 83,945 |
Other Assets (Tables)
Other Assets (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Miscellaneous Assets [Abstract] | |
Summary of Other Assets | December 31 2020 2021 NT$ NT$ (In Millions) Spare parts $ 2,156 $ 2,836 Refundable deposits 2,009 1,971 Other financial assets 1,000 1,000 Others 2,450 2,035 $ 7,615 $ 7,842 Current Spare parts $ 2,156 $ 2,836 Others 193 143 $ 2,349 $ 2,979 Noncurrent Refundable deposits $ 2,009 $ 1,971 Other financial assets 1,000 1,000 Others 2,257 1,892 $ 5,266 $ 4,863 |
Hedging Financial Instruments (
Hedging Financial Instruments (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Detailed Information About Hedging Instruments [Abstract] | |
Summary of Hedging Derivative Financial Instruments | The following tables summarized the information relating to the hedges for foreign currency risk. December 31, 2019 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 84/EUR 2 2020.03 $ 33.66 Hedging financial assets (liabilities) $ — $ — $ (1 ) Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 1 $ — $ — December 31, 2020 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 201/ EUR 6 2021.03 $ 34.45 Hedging financial assets (liabilities) $ 2 $ — $ 2 Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (2 ) $ 2 $ — December 31, 2021 Notional Forward Line Item in Carrying Amount Change in Fair Values of Hedging Instruments Used for Calculating Hedge Hedging Instruments Currency Amount Maturity Rate Balance Sheet Asset Liability Ineffectiveness (In Millions) NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast purchases - forward exchange contracts NT$/EUR NT$ 228/ EUR 7 2022.03 $ 32.54 Hedging financial assets (liabilities) $ — $ 8 $ (10 ) Change in Value of Hedged Item Used for Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedged Items Calculating Hedge Ineffectiveness Continuing Hedges Hedge Accounting No Longer Applied NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 10 $ (8 ) $ — |
Summary of Hedging Transaction and Reclassification Affected Comprehensive Income | Year ended December 31, 2019 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (1 ) $ — — $ (2 ) $ — Construction in progress and equipment to be accepted Other gains and losses Year ended December 31, 202 0 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ 2 $ — — $ 21 $ — Construction in progress and equipment to be accepted Other gains and losses Year ended December 31, 2021 Comprehensive Income Reclassification from Equity to Profit or Loss and the Adjusted Line Item Hedging Gain or Loss Amount of Hedge Ineffectiveness Line Item in Which Hedge Amount Reclassified to P/L and Due to Hedged Future Cash Flows No Hedge Recognized Recognized in Ineffectiveness the Adjusted Longer Expected Transaction in OCI Profit or Loss is Included Line Item to Occur NT$ NT$ NT$ NT$ NT$ (In Millions) Cash flow hedge Forecast equipment purchases $ (10 ) $ — — $ (43 ) $ — Construction in progress and equipment to be accepted Other gains and losses |
Short-Term Loans (Tables)
Short-Term Loans (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Short-term loans [Member] | |
Disclosure of detailed information about borrowings [Line Items] | |
Summary of Loans | December 31 2020 2021 NT$ NT$ (In Millions) Unsecured bank loans $ 67 $ 65 The annual interest rates of bank loans were as follows: December 31 2020 2021 Unsecured bank loans 1.12%-2.33% 1.97%-2.43% |
Short-term Bills Payable (Table
Short-term Bills Payable (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Short Term Bills Payable [Abstract] | |
Summary of Short-term Bills Payable | December 31 2020 2021 NT$ NT$ (In Millions) Commercial paper payable $ 7,000 $ — Less: Discounts on commercial paper payable (1 ) $ — $ 6,999 $ — |
Summary of Annual Interest Rates of Commercial Paper Payable | The annual interest rates of commercial paper payable were as follows: December 31 2020 2021 Commercial paper payable 0.34%-0.36% — |
Long-Term Loans (Tables)
Long-Term Loans (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Long-term loans [Member] | |
Disclosure of detailed information about borrowings [Line Items] | |
Summary of Loans | December 31 2020 2021 NT$ NT$ (In Millions) Secured bank loans (Note 41) $ 1,600 $ 1,600 Less: Current portion (1,600 ) — $ - $ 1,600 The annual interest rates of bank loans were as follows: December 31 2020 2021 Secured bank loans 0.72% 0.89% |
Bonds Payable (Tables)
Bonds Payable (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Bonds Payable [Abstract] | |
Summary of Bonds Payable | December 31 2020 2021 NT$ NT$ (In Millions) Unsecured domestic bonds $ 20,000 $ 27,000 Less: Discounts on bonds payable (20 ) (23 ) $ 19,980 $ 26,977 |
Summary of Major Terms of Unsecured Domestic Bonds Issued | The major terms of unsecured domestic bonds issued by Chunghwa were as follows: Issuance Tranche Issuance Period Total Amount Coupon Rate Repayment and Interest Payment 2020-1 A July 2020 to July 2025 $ 8,800 0.50% One-time repayment upon maturity; interest payable annually B July 2020 to July 2027 7,500 0.54% The same as above C July 2020 to July 2030 3,700 0.59% The same as above 2021-1 A April 2021 to April 2026 1,900 0.42% The same as above B April 2021 to April 2028 4,100 0.46% The same as above C April 2021 to April 2031 1,000 0.50% The same as above |
Trade Notes and Accounts Paya_2
Trade Notes and Accounts Payable (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Trade And Other Current Payables [Abstract] | |
Summary of Trade Notes and Accounts Payable | December 31 2020 2021 NT$ NT$ (In Millions) Trade notes and accounts payable $ 15,591 $ 18,063 |
Other Payables (Tables)
Other Payables (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Trade And Other Current Payables [Abstract] | |
Summary of Other Payables | December 31 2020 2021 NT$ NT$ (In Millions) Accrued salary and compensation $ 9,450 $ 10,126 Payables to contractors 1,779 3,015 Accrued compensation to employees and remuneration to directors and supervisors 1,691 1,997 Amounts collected for others 1,308 1,426 Payables to equipment suppliers 1,049 1,154 Accrued maintenance costs 1,040 1,011 Payable on land (Note 16) 1,057 — Others 6,614 5,708 $ 23,988 $ 24,437 |
Provisions (Tables)
Provisions (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Provisions [Abstract] | |
Summary of Provisions | December 31 2020 2021 NT$ NT$ (In Millions) Warranties $ 182 $ 213 Onerous contracts 171 147 Employee benefits 57 63 Others 5 4 $ 415 $ 427 Current $ 314 $ 285 Noncurrent 101 142 $ 415 $ 427 |
Movements in Provisions | Warranties Onerous Contracts Employee Benefits Others Total NT$ NT$ NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 132 $ 19 $ 51 $ 5 $ 207 Additional provisions recognized 127 48 9 — 184 Used / forfeited during the year (86 ) — (1 ) — (87 ) Balance on December 31, 2019 $ 173 $ 67 $ 59 $ 5 $ 304 Balance on January 1, 2020 $ 173 $ 67 $ 59 $ 5 $ 304 Additional / (reversal of) provisions recognized 131 92 (2 ) — 221 Used / forfeited during the year (122 ) (3 ) — — (125 ) Acquired by business combinations (Note 14) — 15 — — 15 Balance on December 31, 2020 $ 182 $ 171 $ 57 $ 5 $ 415 Balance on January 1, 2021 $ 182 $ 171 $ 57 $ 5 $ 415 Additional / (reversal of) provisions recognized 102 (24 ) 7 (1 ) 84 Used / forfeited during the year (71 ) — (1 ) — (72 ) Effect of foreign exchange differences — — — — — Balance on December 31, 2021 $ 213 $ 147 $ 63 $ 4 $ 427 a. The provision for warranty claims represents the present value of the management’s best estimate of the future outflow of economic benefits that will be required under the Company’s obligation for warranties in sales agreements. The estimate has been made based on historical warranty experience. b. The provision for employee benefits represents vested long-term service compensation accrued. c . The provision for onerous contracts represents the present obligation resulting from the measurement for the unavoidable costs of meeting the Company’s contractual obligations exceed the economic benefits expected to be received from the contracts. |
Retirement Benefit Plans (Table
Retirement Benefit Plans (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Retirement Benefit Plans [Abstract] | |
Amounts Included in Consolidated Balance Sheets from Obligation in Respect of Defined Benefit Plans | The amounts included in the consolidated balance sheets arising from the Company’s obligation in respect of its defined benefit plans were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Present value of funded defined benefit obligations $ 39,536 $ 35,502 Fair value of plan assets (39,494 ) (36,605 ) Funded status - deficit (surplus) $ 42 $ (1,103 ) Net defined benefit liabilities $ 3,415 $ 2,288 Net defined benefit assets (3,373 ) (3,391 ) $ 42 $ (1,103 ) |
Movements in Defined Benefit Obligation and Fair Value of Plan Assets | Movements in the defined benefit obligations and the fair value of plan assets were as follows: Present Value of Funded Defined Benefit Obligations Fair Value of Plan Assets Net Defined Benefit Liabilities (Assets) NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 41,397 $ 39,027 $ 2,370 Current service cost 2,927 — 2,927 Interest expense/interest income 400 390 10 Amounts recognized in profit or loss 3,327 390 2,937 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 1,338 (1,338 ) Actuarial losses recognized from changes in demographic assumptions 6 — 6 Actuarial losses recognized from changes in financial assumptions 647 — 647 Actuarial gains recognized from experience adjustments (842 ) — (842 ) Amounts recognized in other comprehensive income (189 ) 1,338 (1,527 ) Contributions from employer — 2,099 (2,099 ) Benefits paid (3,034 ) (3,034 ) — Benefits paid directly by the Company (304 ) — (304 ) Balance on December 31, 2019 41,197 39,820 1,377 Current service cost 2,052 — 2,052 Interest expense/interest income 298 297 1 Amounts recognized in profit or loss 2,350 297 2,053 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 1,308 (1,308 ) Actuarial losses recognized from changes in financial assumptions 590 — 590 Actuarial gains recognized from experience adjustments (475 ) — (475 ) Amounts recognized in other comprehensive income 115 1,308 (1,193 ) Contributions from employer — 1,964 (1,964 ) Benefits paid (3,919 ) (3,919 ) — Benefits paid directly by the Company (263 ) — (263 ) Acquired by business combinations (Note 14) 56 24 32 Balance on December 31, 2020 39,536 39,494 42 Current service cost 1,253 — 1,253 Interest expense/interest income 190 195 (5 ) Amounts recognized in profit or loss 1,443 195 1,248 Remeasurement on the net defined benefit liability Return on plan assets (excluding amounts included in net interest) — 501 (501 ) Actuarial gain recognized from changes in demographic assumptions (434 ) — (434 ) Actuarial loss recognized from experience adjustments 545 — 545 Amounts recognized in other comprehensive income 111 501 (390 ) Contributions from employer — 1,727 (1,727 ) Benefits paid (5,312 ) (5,312 ) — Benefits paid directly by the Company (276 ) — (276 ) Balance on December 31, 2021 $ 35,502 $ 36,605 $ (1,103 ) |
Pension Costs Recognized in Profit and Loss for Defined Benefit Plans | Relevant pension costs recognized in profit and loss for defined benefit plans were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Operating costs $ 1,726 $ 1,205 $ 725 Marketing expenses 866 603 367 General and administrative expenses 164 121 80 Research and development expenses 103 72 44 $ 2,859 $ 2,001 $ 1,216 |
Principal Assumptions Used for Actuarial Valuations | The principal assumptions used for the purpose of the actuarial valuations were as follows: Measurement Date December 31 2020 2021 Discount rates 0.50% 0.50% Expected rates of salary increase 1.00%-2.25% 1.00%-2.25% |
Effect on Present Value of Defined Benefit Obligation Due to a Reasonably Possible Change of the Significant Actuarial Assumptions | If reasonably possible changes of the respective significant actuarial assumptions occur at the end of reporting periods, while holding all other assumptions constant, the present values of the defined benefit obligations would increase (decrease) as follows: December 31 2020 2021 NT$ NT$ (In Millions) Discount rates 0.5% increase $ (1,208 ) $ (1,073 ) 0.5% decrease $ 1,284 $ 1,139 Expected rates of salary increase 0.5% increase $ 1,372 $ 1,217 0.5% decrease $ (1,303 ) $ (1,157 ) |
Summary of Sensitivity Analysis | December 31 2020 2021 NT$ NT$ (In Millions) The expected contributions to the plan for the next year $ 1,932 $ 1,681 The average duration of the defined benefit obligations 6.4-13 years 6.3-12 years |
Maturity Analysis of Undiscounted Benefit Payments | As of December 31, 2021, the Company’s maturity analysis of the undiscounted benefit payments was as follows: Year Amount NT$ (In Millions) 2022 $ 2,693 2023 6,330 2024 9,721 2025 10,864 2026 and thereafter 36,890 $ 66,498 |
Equity (Tables)
Equity (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Classes Of Share Capital [Line Items] | |
Summary of Common Stocks | 1) Common stocks December 31 2020 2021 NT$ NT$ (In Millions) Number of authorized shares 12,000 12,000 Authorized shares $ 120,000 $ 120,000 Number of issued and paid shares 7,757 7,757 Issued and outstanding shares $ 77,574 $ 77,574 |
Adjustments of Additional Paid-in Capital | The adjustments of additional paid-in capital for the years ended December 31, 2019, 2020 and 2021 were as follows: Share Premium Movements of Additional Paid-in Capital for Associates and Joint Ventures Accounted for Using Equity Method Movements of Additional Paid-in Capital Arising from Changes in Equities of Subsidiaries Difference between Consideration Received and Carrying Amount of the Subsidiaries’ Net Assets upon Disposal Donated Capital Stockholders’ Contribution Due to Privatization Total NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Balance on January 1, 2019 $ 126,045 $ — $ 2,064 $ 987 $ 18 $ 20,648 $ 149,762 Unclaimed dividend — — — — 1 — 1 Share-based payment transactions of subsidiaries — — (1 ) — — — (1 ) Balance on December 31, 2019 $ 126,045 $ — $ 2,063 $ 987 $ 19 $ 20,648 $ 149,762 Balance on January 1, 2020 $ 126,045 $ — $ 2,063 $ 987 $ 19 $ 20,648 $ 149,762 Unclaimed dividend — — — — 2 — 2 Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries — — — — — — — Share-based payment transactions of subsidiaries — — 26 — — — 26 Balance on December 31, 2020 $ 126,045 $ — $ 2,089 $ 987 $ 21 $ 20,648 $ 149,790 Balance on January 1, 2021 $ 126,045 $ — $ 2,089 $ 987 $ 21 $ 20,648 $ 149,790 Unclaimed dividend — — — — 2 — 2 Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method — 1 — — — — 1 Share-based payment transactions of subsidiaries — — 17 — — — 17 Balance on December 31, 2021 $ 126,045 $ 1 $ 2,106 $ 987 $ 23 $ 20,648 $ 149,810 |
Appropriations of Earnings | The appropriations of the 2019 and 2020 earnings of Chunghwa approved by the stockholders in their meetings on May 29, 2020 and August 20, 2021, respectively, were as follows: Appropriation of Earnings Dividends Per Share (NT$) For Fiscal Year 2019 For Fiscal Year 2020 For Fiscal Year 2019 For Fiscal Year 2020 Cash dividends $ 32,783 $ 33,404 $ 4.226 $ 4.306 The appropriations of earnings for 2021 had been proposed by Chunghwa’s Board of Directors on February 23, 2022. The appropriations and dividends per share were as follows: Appropriation of Earnings Dividends Per Share (NT$) Special reserve $ 408 Cash dividends 35,746 $ 4.608 |
Noncontrolling Interests | e. Noncontrolling interests Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Beginning balance $ 9,837 $ 10,115 $ 11,158 Attributable to noncontrolling interests Net income for the year 974 1,285 1,431 Exchange differences arising from the translation of the foreign operations 8 (14 ) — Unrealized gain or loss on financial assets at FVOCI (26 ) (3 ) 2 Remeasurements of defined benefit pension plans 15 17 (5 ) Income tax relating to remeasurements of defined benefit pension plans (3 ) (3 ) 1 Share of other comprehensive loss of associates and joint ventures accounted for using equity method (1 ) (1 ) — Cash dividends distributed by subsidiaries (710 ) (775 ) (896 ) Share-based payment transactions of subsidiaries 22 63 56 Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries — — — Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method — (2 ) — Net increase (decrease) in noncontrolling interests (1 ) 476 — Ending balance $ 10,115 $ 11,158 $ 11,747 |
FVOCI [Member] | |
Disclosure Of Classes Of Share Capital [Line Items] | |
Unrealized Gain or Loss on Financial Assets at FVOCI | 2 ) Unrealized gain or loss on financial assets at FVOCI Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Beginning balance $ 538 $ 735 $ 1,240 Unrealized gain or loss for the year Equity instruments 197 522 (1,188 ) Transferred accumulated gain or loss to unappropriated earnings resulting from the disposal of equity instruments (Note 9) — (17 ) (60 ) Ending balance $ 735 $ 1,240 $ (8 ) |
Revenue (Tables)
Revenue (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Revenue [Abstract] | |
Summary of Revenue | Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Revenue from contracts with customers $ 206,360 $ 206,396 $ 208,412 Other revenues Government grants income 205 219 1,037 Rental income 818 843 864 Others 137 151 165 1,160 1,213 2,066 Total $ 207,520 $ 207,609 $ 210,478 |
Summary of Disaggregation of Revenue | a. Disaggregation of revenue 2019 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 58,703 $ — $ — $ — $ 58,703 Sales of products 1,957 35,545 41 265 3,785 41,593 Local telephone and domestic long distance telephone services revenue 27,929 — — — — 27,929 Broadband access and domestic leased line services revenue 22,116 — — — — 22,116 Data Communications internet services revenue — — 21,003 — — 21,003 International network and leased line services revenue — — — 7,066 — 7,066 Others 13,064 1,142 8,790 4,144 810 27,950 $ 65,066 $ 95,390 $ 29,834 $ 11,475 $ 4,595 $ 206,360 2020 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 56,724 $ — $ — $ — $ 56,724 Sales of products 2,214 32,112 107 313 4,645 39,391 Local telephone and domestic long distance telephone services revenue 26,475 — — — — 26,475 Broadband access and domestic leased line services revenue 22,420 — — — — 22,420 Data Communications internet services revenue — — 21,447 — — 21,447 International network and leased line services revenue — — — 3,884 — 3,884 Others 17,695 1,307 10,255 4,485 2,313 36,055 $ 68,804 $ 90,143 $ 31,809 $ 8,682 $ 6,958 $ 206,396 2 0 21 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Main Products and Service Revenues Mobile services revenue $ — $ 58,048 $ — $ — $ — $ 58,048 Sales of products 2,173 35,414 128 12 5,180 42,907 Local telephone and domestic long distance telephone services revenue 25,704 — — — — 25,704 Broadband access and domestic leased line services revenue 23,012 — — — — 23,012 Data Communications internet services revenue — — 22,281 — — 22,281 International network and leased line services revenue — — — 4,367 — 4,367 Others 13,255 1,222 10,428 4,246 2,942 32,093 $ 64,144 $ 94,684 $ 32,837 $ 8,625 $ 8,122 $ 208,412 |
Summary of Contract Balances | b. Contract balances January 1, December 31 2020 2020 2021 NT$ NT$ NT$ (In Millions) Trade notes and accounts receivable (Note 10) $ 26,408 $ 22,622 $ 23,947 Contract assets Products and service bundling $ 6,943 $ 7,232 $ 7,197 Others 116 612 983 Less : Loss allowance (17 ) (18 ) (18 ) $ 7,042 $ 7,826 $ 8,162 Current $ 4,441 $ 5,331 $ 5,554 Noncurrent 2,601 2,495 2,608 $ 7,042 $ 7,826 $ 8,162 Contract liabilities Telecommunications business $ 12,772 $ 13,602 $ 13,144 Project business 10,360 6,687 5,435 Products and service bundling 39 16 4 Others 510 421 491 $ 23,681 $ 20,726 $ 19,074 Current $ 16,840 $ 13,437 $ 12,234 Noncurrent 6,841 7,289 6,840 $ 23,681 $ 20,726 $ 19,074 |
Summary of Changes in Contract Assets and Contract Liabilities | Significant changes of contract assets and liabilities recognized resulting from product and service bundling were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Contract assets Net increase of customer contracts $ 6,066 $ 5,972 $ 6,035 Reclassified to trade receivables (6,405 ) (5,681 ) (6,039 ) $ (339 ) $ 291 $ (4 ) Contract liabilities Net increase of customer contracts $ 22 $ 7 $ — Recognized as revenues (89 ) (30 ) (12 ) $ (67 ) $ (23 ) $ (12 ) |
Summary of Revenue Recognized | Revenue recognized for the period that was included in the contract liability at the beginning of the year was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Telecommunications business $ 6,186 $ 5,492 $ 5,952 Project business 3,973 6,092 4,630 Others 404 512 431 $ 10,563 $ 12,096 $ 11,013 |
Summary of Incremental Costs of Obtaining Contracts | c. Incremental costs of obtaining contracts December 31 2020 2021 NT$ NT$ (In Millions) Noncurrent Incremental costs of obtaining contracts $ 1,000 $ 988 |
Net Income (Tables)
Net Income (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Analysis Of Income And Expense [Abstract] | |
Other Income and Expenses | a. Other income and expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Gain (loss) on disposal of property, plant and equipment $ (38 ) $ 1,428 $ (3 ) Impairment loss on property, plant and equipment (93 ) — — Impairment loss on right-of-use assets — — (420 ) Gain on disposal of investment properties, net — 151 — Reversal of impairment loss on investment properties 57 27 83 Loss on disposal of intangible assets — (2 ) — Impairment loss on intangible assets (9 ) (9 ) (29 ) Impairment loss on other assets (44 ) — — $ (127 ) $ 1,595 $ (369 ) |
Other Income | b. Other income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Dividend income $ 296 $ 246 $ 154 Rental income 85 70 70 Others 150 154 154 $ 531 $ 470 $ 378 |
Other Gains and Losses | c. Other gains and losses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Valuation gain (loss) on financial assets and liabilities at fair value through profit or loss, net $ (38 ) $ (99 ) $ 243 Foreign currency exchange gain or loss, net 16 (47 ) 230 Gain on disposal of investments accounted for using equity method, net 151 10 4 Gain (loss) on disposal of financial instruments, net 4 (2 ) — Others (49 ) (21 ) (16 ) $ 84 $ (159 ) $ 461 |
Interest Expenses | d. Interest expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Interest on bonds payable $ — $ 46 $ 132 Interest on lease liabilities 85 80 69 Interest paid to financial institutions 17 79 16 Others 2 1 1 $ 104 $ 206 $ 218 |
Impairment Loss (Reversal of Impairment Loss) on Financial Instruments and Non-financial Assets | e . Impairment loss (reversal of impairment loss) Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Contract assets $ (2 ) $ 1 $ — Trade notes and accounts receivable $ (54 ) $ 49 $ 123 Other receivables $ (69 ) $ (5 ) $ 20 Inventories $ 475 $ 1,161 $ 207 Property, plant and equipment $ 93 $ — $ — Right-of-use assets $ — $ — $ 420 Investment properties $ (57 ) $ (27 ) $ (83 ) Intangible assets $ 9 $ 9 $ 29 Other assets $ 44 $ — $ — |
Depreciation and Amortization Expenses | f . Depreciation and amortization expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Property, plant and equipment $ 26,930 $ 26,989 $ 27,805 Right-of-use assets 3,968 3,931 3,985 Investment properties 25 22 42 Intangible assets 4,253 5,424 6,569 Incremental costs of obtaining contracts 1,173 772 815 Total depreciation and amortization expenses $ 36,349 $ 37,138 $ 39,216 Depreciation expenses summarized by functions Operating costs $ 28,957 $ 29,056 $ 30,021 Operating expenses 1,966 1,886 1,811 $ 30,923 $ 30,942 $ 31,832 Amortization expenses summarized by functions Operating costs $ 5,196 $ 5,971 $ 7,172 Marketing expenses 96 100 93 General and administrative expenses 95 82 75 Research and development expenses 39 43 44 $ 5,426 $ 6,196 $ 7,384 |
Employee Benefit Expenses | g . Employee benefit expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Post-employment benefit Defined contribution plans $ 654 $ 708 $ 784 Defined benefit plans 2,859 2,001 1,216 3,513 2,709 2,000 Share-based payment Equity-settled share-based payment 2 8 19 Other employee benefit 42,640 42,246 42,654 Total employee benefit expenses $ 46,155 $ 44,963 $ 44,673 Summary by functions Operating costs $ 23,587 $ 23,005 $ 22,734 Operating expenses 22,568 21,958 21,939 $ 46,155 $ 44,963 $ 44,673 The compensation to the employees and remuneration to the directors of 2019 and 2020 approved by the Board of Directors on February 26, 2020 and February 23, 2021, respectively, were as follows: 2019 2020 Cash Cash NT$ NT$ (In Millions) Compensation distributed to the employees $ 1,126 $ 1,202 Remuneration paid to the directors 35 36 |
Income Tax (Tables)
Income Tax (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Major Components Of Tax Expense Income [Abstract] | |
Major Components of Income Tax Expense | The major components of income tax expense were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Current tax Current tax expenses recognized for the year $ 8,109 $ 8,172 $ 8,490 Income tax on unappropriated earnings (20 ) 8 181 Income tax adjustments on prior years (91 ) (22 ) (150 ) Others 12 19 7 8,010 8,177 8,528 Deferred tax Deferred tax expense (benefits) recognized for the year (63 ) (81 ) 489 Income tax adjustments on prior years (1 ) 26 3 (64 ) (55 ) 492 Income tax expense recognized in profit or loss $ 7,946 $ 8,122 $ 9,020 |
Reconciliation of Accounting Profit and Income Tax Expense | Reconciliation of accounting profit and income tax expense was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Income before income tax $ 41,867 $ 42,826 $ 46,067 Income tax expense calculated at the statutory rate $ 8,373 $ 8,565 $ 9,213 Nondeductible income and expenses in determining taxable income 18 15 8 Unrecognized loss carryforwards 7 4 (1 ) Tax-exempt income (148 ) (367 ) (30 ) Income tax on unappropriated earnings (20 ) 8 181 Investment credits (203 ) (131 ) (217 ) Effect of different tax rates of group entities operating in other jurisdictions (9 ) 10 (10 ) Income tax adjustments on prior years (92 ) 4 (147 ) Others 20 14 23 Income tax expense recognized in profit or loss $ 7,946 $ 8,122 $ 9,020 |
Income Tax Recognized in Other Comprehensive Income | b. Income tax recognized in other comprehensive income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Deferred tax Remeasurement on defined benefit pension plans $ 305 $ 239 $ 78 Exchange differences arising from the translation of the foreign operations — — — Total income tax expense recognized in other comprehensive income $ 305 $ 239 $ 78 |
Current Tax Assets and Liabilities | c. Current tax assets and liabilities December 31 2020 2021 NT$ NT$ (In Millions) Current tax assets Tax refund receivable (included in other current assets - others) $ 1 $ 5 Current tax liabilities Income tax payable $ 6,157 $ 6,530 |
Movements of Deferred Income Tax Assets and Liabilities | Deferred income tax assets and liabilities The movements of deferred income tax assets and liabilities were as follows: For the year ended December 31, 2019 January 1, 2019 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2019 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 2,307 $ 32 $ (305 ) $ 2,034 Share of profit or loss of associates and joint ventures accounted for using equity method 389 13 — 402 Allowance for doubtful receivables over quota 435 (31 ) — 404 Valuation loss on inventory 88 53 — 141 Deferred revenue 111 (13 ) — 98 Estimated warranty liabilities 26 8 — 34 Valuation loss on financial instruments 5 8 — 13 Others 178 (73 ) — 105 3,539 (3 ) (305 ) 3,231 Loss carryforwards 41 (13 ) — 28 $ 3,580 $ (16 ) $ (305 ) $ 3,259 January 1, 2019 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2019 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,832 ) $ 74 $ — $ (1,758 ) Land value incremental tax (95 ) — — (95 ) Deferred revenue for award credits (31 ) 2 — (29 ) Unrealized foreign exchange gain, net (1 ) — — (1 ) Intangible assets (32 ) 3 — (29 ) Others (1 ) 1 — — $ (1,992 ) $ 80 $ — $ (1,912 ) For the year ended December 31, 2020 January 1, 2020 Acquired by business combinations (Note 14) Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2020 NT$ NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 2,034 $ 1 $ 20 $ (239 ) $ 1,816 Share of profit or loss of associates and joint ventures accounted for using equity method 402 — (1 ) — 401 Allowance for doubtful receivables over quota 404 — (39 ) — 365 Valuation loss on inventory 141 3 155 — 299 Deferred revenue 98 — (25 ) — 73 Estimated warranty liabilities 34 — 2 — 36 Valuation loss on financial instruments 13 — 20 — 33 Others 105 2 (17 ) — 90 3,231 6 115 (239 ) 3,113 Loss carryforwards 28 — (8 ) — 20 $ 3,259 $ 6 $ 107 $ (239 ) $ 3,133 January 1, 2020 Acquired by business combinations (Note 14) Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2020 NT$ NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,758 ) $ — $ (54 ) $ — $ (1,812 ) Land value incremental tax (95 ) — — — (95 ) Deferred revenue for award credits (29 ) — (1 ) — (30 ) Unrealized foreign exchange gain, net (1 ) — 1 — — Intangible assets (29 ) — 2 — (27 ) Others — (3 ) — — (3 ) $ (1,912 ) $ (3 ) $ (52 ) $ — $ (1,967 ) For the year ended December 31, 2021 January 1, 2021 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2021 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax assets Temporary differences Defined benefit pension plans $ 1,816 $ 6 $ (78 ) $ 1,744 Share of profit or loss of associates and joint ventures accounted for using equity method 401 — — 401 Allowance for doubtful receivables over quota 365 (100 ) — 265 Valuation loss on inventory 299 (102 ) — 197 Deferred revenue 73 (24 ) — 49 Estimated warranty liabilities 36 7 — 43 Valuation loss on financial instruments 33 (33 ) — — Others 90 (15 ) — 75 3,113 (261 ) (78 ) 2,774 Loss carryforwards 20 (9 ) — 11 $ 3,133 $ (270 ) $ (78 ) $ 2,785 January 1, 2021 Recognized in Profit or Loss Recognized in Other Comprehensive Income December 31, 2021 NT$ NT$ NT$ NT$ (In Millions) Deferred income tax liabilities Temporary differences Defined benefit pension plans $ (1,812 ) $ (157 ) $ — $ (1,969 ) Land value incremental tax (95 ) — — (95 ) Deferred revenue for award credits (30 ) (25 ) — (55 ) Unrealized foreign exchange gain, net — (26 ) — (26 ) Intangible assets (27 ) 3 — (24 ) Valuation gain on financial instruments — (16 ) — (16 ) Others (3 ) (1 ) — (4 ) $ (1,967 ) $ (222 ) $ — $ (2,189 ) |
Items for Which No Deferred Income Tax Assets Have Been Recognized | e. Items for which no deferred income tax assets have been recognized December 31 2020 2021 NT$ NT$ (In Millions) Loss carryforwards Expire in 2022 $ 10 $ — Expire in 2023 8 — Expire in 2024 8 1 Expire in 2025 19 15 Expire in 2026 8 8 Expire in 2027 3 3 Expire in 2028 1 1 Expire in 2029 1 1 Expire in 2030 — — Expire in 2031 — — $ 58 $ 29 |
Information About Unused Loss Carryforwards | As of December 31, 2021 unused loss carryforwards were as follows: Remaining Creditable Amount Expiry Year NT$ (In Millions) $ 1 2022 1 2023 1 2024 18 2025 10 2026 3 2027 1 2028 2 2029 2 2030 2 2031 $ 41 |
Earnings Per Share (Tables)
Earnings Per Share (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Earnings Per Share [Abstract] | |
Net Income and Weighted Average Number of Common Stocks Used in Calculation of Earnings Per Share | Net income and weighted average number of common stocks used in the calculation of earnings per share were as follows: Net Income Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Net income used to compute the basic earnings per share Net income attributable to the parent $ 32,947 $ 33,419 $ 35,616 Assumed conversion of all dilutive potential common stocks Employee stock options and employee compensation of subsidiaries (4 ) (7 ) (6 ) Net income used to compute the diluted earnings per share $ 32,943 $ 33,412 $ 35,610 Weighted Average Number of Common Stocks (Millions Shares) Year Ended December 31 2019 2020 2021 Weighted average number of common stocks used to compute the basic earnings per share 7,757 7,757 7,757 Assumed conversion of all dilutive potential common stocks Employee compensation 8 8 8 Weighted average number of common stocks used to compute the diluted earnings per share 7,765 7,765 7,765 |
Share-based Payment Arrangeme_2
Share-based Payment Arrangement (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Senao International Co., Ltd. (SENAO) [Member] | |
Statement [LineItems] | |
Share-based Compensation Plan | a. SENAO share-based compensation plan (“SENAO Plan”) described as follows: Effective Date Grant Date Stock Options Units Exercise Price (In Thousands) NT$ 2012.05.28 2013.05.07 10,000 $66.20 (Original price$93.00) |
Outstanding Stock Options | Information about SENAO’s outstanding stock options for the year ended December 31, 2019 was as follows: Year Ended December 31, 2019 Granted on May 7, 2013 Number of Options Weighted- average Exercise Price (In Thousands) NT$ Employee stock options Options outstanding at beginning of the year 5,318 $ 66.20 Options forfeited (5,318 ) — Options outstanding at end of the year — — Options exercisable at end of the year — — |
Assumptions used to Evaluate Options and Fair Value of Options | SENAO used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on May 7, 2013 Grant-date share price (NT$) $ 93.00 Exercise price (NT$) $ 93.00 Dividend yield — Risk-free interest rate 0.91 % Expected life 4.375 years Expected volatility 36.22 % Weighted average fair value of grants (NT$) $ 28.72 |
CHIEF Telecom Inc. (CHIEF) [Member] | |
Statement [LineItems] | |
Share-based Compensation Plan | b . CHIEF share-based compensation plan (“CHIEF Plan”) described as follows: Effective Date Grant Date Stock Options Units Exercise Price NT$ 2015.11.17 2015.10.22 2,000.00 $34.40 (Original price$43.00) 2017.12.18 2017.12.19 950.00 $128.70 (Original price$147.00) 2018.10.31 50.00 $134.50 (Original price$147.00) 2020.09.16 2020.11.13 200.00 $199.70 (Original price$206.00) |
Outstanding Stock Options | Information about CHIEF’s outstanding stock options for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 Granted on October 22, 2015 Granted on December 19, 2017 Granted on October 31, 2018 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 882.75 $ 34.40 925.00 $ 140.60 50.00 $ 147.00 Options exercised (547.25 ) 34.40 — — — — Options forfeited (21.25 ) — (28.00 ) — (4.00 ) — Options outstanding at end of the year 314.25 34.40 897.00 135.60 46.00 141.70 Options exercisable at end of the year 314.25 34.40 448.50 135.60 — — Year Ended December 31, 2020 Granted on October 22, 2015 Granted on December 19, 2017 Granted on October 31, 2018 Granted on November 13, 2020 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 314.25 $ 34.40 897.00 $ 135.60 46.00 $ 141.70 — $ — Options granted — — — — — — 200.00 206.00 Options exercised (314.25 ) 34.40 (448.50 ) 135.60 (21.00 ) 138.70 — — Options forfeited — — (21.00 ) — (4.00 ) — — — Options outstanding at end of the year — — 427.50 132.70 21.00 138.70 200.00 206.00 Options exercisable at end of the year — — 213.75 132.70 — — — — Year Ended December 31, 2021 Granted on December 19, 2017 Granted on October 31, 2018 Granted on November 13, 2020 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 427.50 $ 132.70 21.00 $ 138.70 200.00 $ 206.00 Options exercised (213.75 ) 132.70 (10.50 ) 134.50 — — Options forfeited (0.50 ) — — — (6.00 ) — Options outstanding at end of the year 213.25 128.70 10.50 134.50 194.00 199.70 Options exercisable at end of the year 213.25 128.70 — — — — |
Assumptions used to Evaluate Options and Fair Value of Options | CHIEF used the fair value method to evaluate the options using the Black-Scholes model and binomial option pricing model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on October 22, 2015 Stock Options Granted on December 19, 2017 Stock Options Granted on October 31, 2018 Stock Options Granted on November 13, 2020 Grant-date share price (NT$) $ 39.55 $ 95.92 $ 166.00 $ 356.00 Exercise price (NT$) $ 43.00 $ 147.00 $ 147.00 $ 206.00 Dividend yield — — — — Risk-free interest rate 0.86 % 0.62 % 0.72 % 0.18 % Expected life 5 years 5 years 5 years 5 years Expected volatility 21.02 % 17.35 % 16.60 % 34.61 % Weighted average fair value of grants (NT$) $ 4,863 $ 2,318 $ 33,540 $ 173,893 |
Summary of Compensation Costs for Stock Options | The compensation costs for stock options for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Granted on October 22, 2015 $ 0.3 $ — $ — Granted on December 19, 2017 0.6 0.2 0.1 Granted on October 31, 2018 0.6 0.3 0.2 Granted on November 13, 2020 — 1.3 9.7 $ 1.5 1.8 10.0 |
Employee Stock Options Outstanding | As of December 31, 2020, information about employee stock options outstanding was as follows: Granted on December 19, 2017 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 132.70 427.50 1.96 $ 132.70 213.75 $ 132.70 Granted on October 31, 2018 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 138.70 21.00 2.83 $ 138.70 — $ — Granted on November 13, 2020 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 206.00 200.00 4.87 $ 206.00 — $ — As of December 31, 2020, all the stock options granted in 2015 were exercised or forfeited. As of December 31, 2021, information about employee stock options outstanding was as follows: Granted on December 19, 2017 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 128.70 213.25 0.96 128.70 213.25 128.70 Granted on October 31, 2018 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ 134.50 10.50 1.83 $ 134.50 — $ — Granted on November 13, 2020 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 199.70 194.00 3.87 $ 199.70 — $ — As of December 31, 2021, all the stock options granted in 2015 were exercised or forfeited. |
CHT Security Co., Ltd. (CHTSC) [Member] | |
Statement [LineItems] | |
Outstanding Stock Options | Information about CHTSC’s outstanding stock options for the years ended December 31, 2019, 2020 and 2021 was as follows: Year Ended December 31, 2019 Granted on December 20, 2019 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — Options granted 4,500 19.085 Options outstanding at end of the year 4,500 19.085 Options exercisable at end of the year — — Year Ended December 31, 2020 Granted on December 20, 2019 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 4,500 $ 19.085 Options forfeited (172 ) — Options outstanding at end of the year 4,328 19.085 Options exercisable at end of the year 1,082 19.085 |
Assumptions used to Evaluate Options and Fair Value of Options | CHTSC used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on December 20, 2019 Stock Options Granted on February 20, 2021 Grant-date share price (NT$) $ 20.17 $ 23.76 Exercise price (NT$) $ 19.085 $ 19.085 Dividend yield 12.49 % 15.18 % Risk-free interest rate 0.54 % 0.25 % Expected life 5 years 5 years Expected volatility 42.41 % 47.35 % Weighted average fair value of grants (NT$) $ 2,470 $ 3,350 |
Summary of Compensation Costs for Stock Options | The compensation costs for stock options for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Granted on December 20, 2019 $ 0.2 $ 5.7 $ 2.9 Granted on February 20, 2021 — — 5.5 $ 0.2 5.7 8.4 |
Employee Stock Options Outstanding | As of December 31, 2020, information about employee stock options outstanding was as follows: Granted on December 20, 2019 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 4,328 3.97 $ 19.085 1,082 $ 19.085 As of December 31, 2021, information about employee stock options outstanding was as follows: Granted on December 20, 2019 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 3,174 2.97 $ 19.085 1,058 $ 19.085 Granted on February 20, 2021 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 19.085 3,324 4.14 $ 19.085 — $ — |
IISI Plan [Member] | |
Statement [LineItems] | |
Outstanding Stock Options | Information about IISI’s outstanding stock options for the years ended December 31, 2020 and 2021 was as follows: Year Ended December 31, 2020 Granted in August 2013 Granted in January 2014 Number of Options Weighted Average Exercise Price (NT$) Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — — $ — Options outstanding upon the date of business combination 1,022.96 14.00 580.00 14.00 Options exercised (432.50 ) 14.00 (50.00 ) 14.00 Options forfeited (590.46 ) — — — Options outstanding at end of the year — — 530.00 14.00 Options exercisable at end of the year — — 530.00 14.00 Year Ended December 31, 2021 Granted in January 2014 Number of Options Weighted Average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year 530.00 $ 14.00 Options exercised (261.00 ) 14.00 Options forfeited (269.00 ) — Options outstanding at end of the year — — Options exercisable at end of the year — — |
Assumptions used to Evaluate Options and Fair Value of Options | IISI used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted in August 2013 Stock Options Granted in January 2014 Grant-date share price (NT$) $ 12.51 $ 14.51 Exercise price (NT$) $ 14.00 $ 14.00 Dividend yield 6 % 6 % Risk-free interest rate 1.20%-1.39% 1.16%-1.32% Expected life 4.5-5.5 years 4.5-5.5 years Expected volatility 36.01%-36.62% 35.28%-35.97% Weighted average fair value of grants (NT$) $ 1,670 $ 2,345 |
Employee Stock Options Outstanding | As of December 31, 2020, information about employee stock options outstanding was as follows: Granted in January 2014 Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 14.00 530.00 0.04 $ 14.00 530.00 $ 14.00 |
C L P T Plan | |
Statement [LineItems] | |
Outstanding Stock Options | Information about CLPT’s outstanding stock options for the year ended December 31, 2021 was as follows: Year Ended December 31, 2021 Granted on February 26, 2021 Number of Options Weighted average Exercise Price (NT$) Employee stock options Options outstanding at beginning of the year — $ — Options granted 690 $ 16.87 Options forfeited (140 ) — Options outstanding at end of the year 550 15.90 Options exercisable at end of the year — — |
Assumptions used to Evaluate Options and Fair Value of Options | CLPT used the fair value method to evaluate the options using the Black-Scholes model and the related assumptions and the fair value of the options were as follows: Stock Options Granted on February 26, 2021 Grant-date share price (NT$) $ 17.63 Exercise price (NT$) $ 16.87 Dividend yield — Risk-free interest rate 0.31 % Expected life 4 years Expected volatility 35.22 % Weighted average fair value of grants (NT$) $ 4,750 |
Employee Stock Options Outstanding | As of December 31, 2021, information about employee stock options outstanding was as follows: Options Outstanding Options Exercisable Range of Exercise Price Number of Options Weighted Average Remaining Contractual Life Weighted Average Exercise Price Number of Options Weighted Average Exercise Price NT$ (Years) NT$ NT$ $ 15.90 550.00 3.16 $ 15.90 — $ — |
Non-cash Transactions (Tables)
Non-cash Transactions (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Non Cash Transaction From Financing Activities [Abstract] | |
Non-cash Investing Activities | Except for those disclosed in other notes, the Company entered into the following non-cash investing and financing activities: Year Ended December 31 Investing activities 2019 2020 2021 NT$ NT$ NT$ (In Millions) Increase in property, plant and equipment $ 23,164 $ 25,195 $ 35,613 Changes in other payables 1,002 (1,684 ) (280 ) Acquisition of property, plant and equipment $ 24,166 $ 23,511 $ 35,333 Increase in investment properties $ 1 $ 1,359 $ 1 Trade-in investment properties from asset exchange transaction (Note 16) — (1,305 ) — Acquisition of investment properties $ 1 $ 54 $ 1 Increase in intangible assets $ 363 $ 48,605 $ 256 Changes in other assets — (1,000 ) — Acquisition of intangible assets $ 363 $ 47,605 $ 256 Disposal of property, plant and equipment $ 86 $ 307 $ 30 Gain (loss) on disposal of property, plant and equipment (38 ) 1,428 (3 ) Trade-in investment properties from asset exchange transaction (Note 16) — (1,305 ) — Changes in other payables — (80 ) — Changes in other current monetary assets — (31 ) — Proceeds from disposal of property, plant and equipment $ 48 $ 319 $ 27 Disposal of financial assets at fair value through other comprehensive income $ — $ 568 $ 2,705 Changes in other current monetary assets — (271 ) 271 Reclassified to investment accounted for using equity method — — (64 ) Proceeds from disposal of financial assets at fair value through other comprehensive income $ — $ 297 $ 2,912 |
Summary of Changes in Liabilities Arising From Financing Activities Including Non-cash Transactions | Financing activities Balance on January 1, 2019 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2019 New Leases Others NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 10,340 $ (3,728 ) $ 3,803 $ (572 ) $ (85 ) $ 9,758 Balance on January 1, 2020 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2020 New Leases Acquired by business combination (Note 14) Others NT$ NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 9,758 $ (3,683 ) $ 3,796 $ 71 $ (265 ) $ (80 ) $ 9,597 Balance on January 1, 2021 Cash Flows from Financing Activities Changes in Non-Cash Transactions Cash Flows from Operation Activities - Interest Paid Balance on December 31, 2021 New Leases Others NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 9,597 $ (3,729 ) $ 4,669 $ (195 ) $ (69 ) $ 10,273 |
Financial Instruments (Tables)
Financial Instruments (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure of detailed information about financial instruments [Line Items] | |
Summary of Categories of Financial Instruments | Categories of Financial Instruments December 31 2020 2021 NT$ NT$ (In Millions) Financial assets Measured at FVTPL Mandatorily measured at FVTPL $ 687 $ 912 Hedging financial assets 2 — Financial assets at amortized cost (Note a) 62,405 71,799 Financial assets at FVOCI 7,193 3,616 Financial liabilities Measured at FVTPL Held for trading — 6 Hedging financial liabilities — 8 Measured at amortized cost (Note b) 62,557 64,747 Note a: The balances included cash and cash equivalents, trade notes and accounts receivable, receivables from related parties, other current monetary assets and refundable deposits (classified as other noncurrent assets), which were financial assets measured at amortized cost. Note b: The balances included short-term loans, short-term bills payable, trade notes and accounts payable, payables to related parties, partial other payables, customers’ deposits, bonds payable and long-term loans (included current portion) which were financial liabilities carried at amortized cost. |
Maturity Analysis For Nonderivative Financial Liabilities | The following tables detailed the Company’s remaining contractual maturity for its non-derivative financial liabilities with agreed repayment periods. The tables had been drawn up based on the undiscounted cash flows of financial liabilities based on the earliest date on which the Company is required to pay. December 31, 2020 Weighted Average Effective Interest Rate (%) Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Non-derivative financial liabilities Non-interest bearing — $ 37,749 $ — $ 2,476 $ 4,827 $ — $ 45,052 Floating interest rate instruments 0.78 — 7 1,660 — — 1,667 Fixed interest rate instruments 0.50 7,000 — — 8,800 11,200 27,000 $ 44,749 $ 7 $ 4,136 $ 13,627 $ 11,200 $ 73,719 December 31, 2021 Weighted Average Effective Interest Rate (%) Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Non-derivative financial liabilities Non-interest bearing — $ 40,895 $ — $ 1,997 $ 5,336 $ — $ 48,228 Floating interest rate instruments 0.95 — 15 50 1,600 — 1,665 Fixed interest rate instruments 0.51 — — — 10,700 16,300 27,000 $ 40,895 $ 15 $ 2,047 $ 17,636 $ 16,300 $ 76,893 |
Information About the Maturity Analysis for Lease Liabilities | December 31, 2020 Information about the maturity analysis for lease liabilities was as follows: Less than 1 Year 1-3 Years 3-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 3,397 $ 4,240 $ 1,691 $ 409 $ 9,737 December 31, 2021 Information about the maturity analysis for lease liabilities was as follows: Less than 1 Year 1-3 Years 3-5 Years More than 5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) Lease liabilities $ 3,228 $ 4,126 $ 1,808 $ 1,244 $ 10,406 |
Liquidity Analysis for Derivative Financial Instruments | The following table detailed the Company’s liquidity analysis for its derivative financial instruments. The table had been drawn up based on the undiscounted gross inflows and outflows on those derivatives that require gross settlement. Less than 1 Month 1-3 Months 3 Months to 1 Year 1-5 Years Total NT$ NT$ NT$ NT$ NT$ (In Millions) December 31, 2020 Gross settled Forward exchange contracts Inflows $ — $ 635 $ — $ — $ 635 Outflows — 631 — — 631 $ — $ 4 $ — $ — $ 4 December 31, 2021 Gross settled Forward exchange contracts Inflows $ — $ 471 $ — $ — $ 471 Outflows — 485 — — 485 $ — $ (14 ) $ — $ — $ (14 ) |
Financing Facilities | 2) Financing facilities December 31 2020 2021 NT$ NT$ (In Millions) Facility of unsecured bank loan and commercial paper payable Amount used $ 7,068 $ 65 Amount unused 59,277 61,620 $ 66,345 $ 61,685 Facility of secured bank loan facility Amount used $ 1,600 $ 1,600 Amount unused 20 — $ 1,620 $ 1,600 |
Foreign currency risk [Member] | |
Disclosure of detailed information about financial instruments [Line Items] | |
Carrying Amounts of Assets and Liabilities Related to Market Risk | 1) Foreign currency risk The carrying amounts of the Company’s foreign currency denominated monetary assets and monetary liabilities at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Assets USD $ 2,711 $ 2,010 EUR 15 49 SGD 170 260 JPY 22 37 RMB 30 89 HKD 69 70 Liabilities USD 768 890 EUR 957 861 SGD 1,049 1,964 JPY 10 13 RMB — 39 HKD 8 16 The carrying amounts of the Company’s derivatives with exchange rate risk exposures at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Assets USD $ — $ — EUR 4 — Liabilities USD — — EUR — 14 |
Foreign Currency Risk Sensitivity Analysis | The following table details the Company’s sensitivity to a 5% increase and decrease in the functional currency against the relevant foreign currencies. 5 5 Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Profit or loss Monetary assets and liabilities (a) USD $ 83 $ 97 $ 56 EUR (10 ) (47 ) (41 ) SGD (52 ) (44 ) (85 ) JPY — 1 1 RMB — 1 3 HKD (1 ) 3 3 Derivatives (b) USD 1 (19 ) — EUR 3 3 13 Equity Derivatives (c) EUR 4 10 11 a) This is mainly attributable to the exposure to foreign currency denominated receivables and payables of the Company outstanding at the balance sheet dates. b) This is mainly attributable to forward exchange contracts. c) This is mainly attributable to the changes in the fair value of derivatives that are designated as cash flow hedges. |
Interest rate risk [member] | |
Disclosure of detailed information about financial instruments [Line Items] | |
Carrying Amounts of Assets and Liabilities Related to Market Risk | The carrying amounts of the Company’s exposures to interest rates on financial assets and financial liabilities at the balance sheet dates were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Fair value interest rate risk Financial assets $ 24,218 $ 27,671 Financial liabilities 36,576 37,249 Cash flow interest rate risk Financial assets 9,306 14,171 Financial liabilities 1,667 1,665 |
Fair Value Information (Tables)
Fair Value Information (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |
Schedule of Carrying Amounts of Financial Assets and Liabilities Not Measured at Fair Value | Except those listed in the table below, the Company considers that the carrying amounts of financial assets and liabilities not measured at fair value approximate their fair values or the fair values cannot be reliable estimated. December 31, 2020 December 31, 2021 Carrying Value Fair Value Carrying Value Fair Value Financial liabilities Financial liabilities measured at amortized cost Bonds payable $ 19,980 $ 20,078 $ 26,977 $ 27,082 |
Carrying Amounts And Fair Value of Financial Assets and Liabilities | b. Financial instruments that are measured at fair value on a recurring basis December 31, 2020 Level 1 Level 2 Level 3 Total Financial assets at FVTPL Derivatives $ — $ 2 $ — $ 2 Listed stocks 8 — — 8 Non-listed stocks — — 677 677 $ 8 $ 2 $ 677 $ 687 Hedging financial assets $ — $ 2 $ — $ 2 Financial assets at FVOCI Listed stocks $ 2,754 $ — $ — $ 2,754 Non-listed stocks — — 4,439 4,439 $ 2,754 $ — $ 4,439 $ 7,193 Financial liabilities at FVTPL Derivatives $ — $ — $ — $ — December 31, 2021 Level 1 Level 2 Level 3 Total Financial assets at FVTPL Listed stocks $ 3 $ — $ — $ 3 Non-listed stocks — — 885 885 Limited partnership — — 24 24 $ 3 $ — $ 909 $ 912 Financial assets at FVOCI Listed stocks $ 459 $ — $ — $ 459 Non-listed stocks — — 3,157 3,157 $ 459 $ — $ 3,157 $ 3,616 Financial liabilities at FVTPL Derivatives $ — $ 6 $ — $ 6 Hedging financial liabilities $ — $ 8 $ — $ 8 |
Schedule of Percentage Decrease in Discount for Lack of Marketability or Noncontrolling Interests | December 31 2020 2021 Discount for lack of marketability 14.73%-20.00% 16.05%-20.00% Noncontrolling interests discount 17.29%-25.00% 17.29%-25.00% Growth rate of long-term revenue — 0.19% WACC — 8.50% |
Schedule of Impact of Decrease in Discount for Lack of Marketability or Noncontrolling Interests | December 31 2020 2021 NT$ NT$ (In Millions) Discount for lack of marketability 5% increase $ (320 ) $ (32 ) 5% decrease $ 320 $ 32 Noncontrolling interests discount 5% increase $ (47 ) $ (19 ) 5% decrease $ 47 $ 19 Long-term revenue growth rates 0.1% increase $ — $ 25 0.1% decrease $ — $ (25 ) WACC 1% increase $ — $ (288 ) 1% decrease $ — $ 350 |
Level 3 [Member] | |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |
Schedule of Reconciliations for Financial Assets | The reconciliations for financial assets measured at Level 3 were listed below: 201 9 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2019 $ 517 $ 4,033 $ 4,550 Acquisition 300 — 300 Recognized in profit or loss under “Other gains and losses” (39 ) — (39 ) Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — 676 676 Proceed from return of investments — (9 ) (9 ) Balance at December 31, 2019 $ 778 $ 4,700 $ 5,478 Unrealized loss in 2019 $ (39 ) 2020 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2020 $ 778 $ 4,700 $ 5,478 Reclassified from investments accounted for using equity method — 2 2 Recognized in profit or loss under “Other gains and losses” (101 ) — (101 ) Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — (263 ) (263 ) Balance at December 31, 2020 $ 677 $ 4,439 $ 5,116 Unrealized loss in 2020 $ (101 ) 20 2 1 Financial Assets Measured at Fair Value through Profit or Loss Measured at Fair Value through Other Comprehensive Income Total NT$ NT$ NT$ (In Millions) Balance at January 1, 2021 $ 677 $ 4,439 $ 5,116 Acquisition 25 81 106 Disposal — (5 ) (5 ) Reclassified to investments accounted for using equity method — (64 ) (64 ) Recognized in profit or loss under “Other gains and losses” 251 — 251 Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” — (1,294 ) (1,294 ) Proceeds from return of capital due to capital reduction from investees (44 ) — (44 ) Balance at December 31, 2021 $ 909 $ 3,157 $ 4,066 Unrealized gain in 2021 $ 232 |
Related Parties Transactions (T
Related Parties Transactions (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Related Party Transactions [Abstract] | |
Summary of Related Parties | a. The Company engages in business transactions with the following related parties: Company Relationship Taiwan International Standard Electronics Co., Ltd. Associate So-net Entertainment Taiwan Limited Associate KKBOX Taiwan Co., Ltd. Associate KingwayTek Technology Co., Ltd. Associate UUPON Inc. Associate (Note 1) Taiwan International Ports Logistics Corporation Associate International Integrated Systems, Inc. Subsidiary (Note 2) Senao Networks, Inc. Associate EnRack Tech. Co., Ltd. Subsidiary of the Company’s associate, Senao Networks, Inc. Emplus Technologies, Inc. Subsidiary of the Company’s associate, Senao Networks, Inc. ST-2 Satellite Ventures Pte., Ltd. Associate CHT Infinity Singapore Pte. Ltd. Associate Viettel-CHT Co., Ltd. Associate Click Force Co., Ltd. Associate Alliance Digital Tech Co., Ltd. Associate (Note 3) Chunghwa PChome Fund I Co., Ltd. Associate Cornerstone Ventures Co., Ltd. Associate Next Commercial Bank Co., Ltd. Associate WiAdvance Technology Corporation Associate AgriTalk Technology Inc. Associate (Note 4) Imedtac Co., Ltd. Associate (Note 4) Chunghwa SEA Holdings Joint venture Other related parties Chunghwa Telecom Foundation A nonprofit organization of which the funds donated by Chunghwa exceeds one third of its total funds Senao Technical and Cultural Foundation A nonprofit organization of which the funds donated by SENAO exceeds one third of its total funds Sochamp Technology Co., Ltd. Investor of significant influence over CHST E-Life Mall Co., Ltd. One of the directors of E-Life Mall and a director of SENAO are members of an immediate family Engenius Technologies Co., Ltd. Chairman of Engenius Technologies Co., Ltd. is a member of SENAO’s management Cheng Keng Investment Co., Ltd. Chairman of Cheng Keng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Cheng Feng Investment Co., Ltd. Chairman of Cheng Feng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family All Oriented Investment Co., Ltd. Chairman of All Oriented Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family (Continued) Company Relationship Hwa Shun Investment Co., Ltd. Chairman of Hwa Shun Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Yu Yu Investment Co., Ltd. Chairman of Yu Yu Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family Divine Fine Foods & Wine Inc. Chairman of Divine Fine Foods & Wine Inc. and SENAO’s chief executive officer are members of an immediate family (Note 5) United Daily News Co., Ltd. Investor of significant influence over SFD Shenzhen Century Communication Co., Ltd. Investor of significant influence over SCT Advantech Co., Ltd. Investor of significant influence over IISI Chunghwa Post Co., Ltd. Government-related entity as Chunghwa Telecom Note 1: UUPON was previously an associate. As the Company did not participate in the capital increase of UUPON in October 2020; therefore, the Company lost its significant influence over UUPON. Since then, UUPON was no longer a related party of the Company. Please refer to Note 15. Note 2: IISI was an associate and has become a subsidiary starting from July 1, 2020 (“acquisition date”). Please refer to Note 14(c). All transactions within the Company were eliminated upon consolidation since the acquisition date. Note 3: ADT completed its liquidation in August 2021. Please refer to Note 15. Note 4: ATT and IME were previously treated as financial assets at FVOCI. As the Company acquired seats in the Board of Directors of each company and has significant influence over ATT and IME in July and August 2021, respectively, these investments are reclassified as associates. Please refer to Note 15. Note 5: Divine Fine Foods & Wine Inc. replaced its responsible persons in October 2021. Since then, Divine Fine Foods & Wine Inc. is no longer a related party of the Company. 1) Operating transactions Revenues Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 274 $ 1,508 $ 499 Others 76 66 55 $ 350 $ 1,574 $ 554 Operating Costs and Expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 964 $ 715 $ 853 Others 76 68 74 $ 1,040 $ 783 $ 927 2) Non-operating transactions Non-operating Income and Expenses Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 41 $ 37 $ 38 Others 4 3 3 $ 45 $ 40 $ 41 3) Receivables December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 229 $ 35 Others 1 6 $ 230 $ 41 4) Contract liabilities-current December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 183 $ — 5 ) Payables December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 643 $ 386 Others 3 6 $ 646 $ 392 6 ) Customers’ deposits December 31 2020 2021 NT$ NT$ (In Millions) Associates $ 5 $ 16 7 ) Acquisition of property, plant and equipment Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ 242 $ 375 $ 398 8 ) Disposal of property, plant and equipment and investment properties to Chunghwa Post Co., Ltd. Proceeds Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ — $ — $ 10 Others (Chunghwa Post Co., Ltd.) — 386 — $ — $ 386 $ 10 Gain on Disposal Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Associates $ — $ — $ 2 Others (Chunghwa Post Co., Ltd.) — 310 — $ — $ 310 $ 2 |
Summary of Lease Liabilities | The lease liabilities of ST-2 Satellite Ventures Pte., Ltd. as of December 31, 2020 and 2021 were as follows: December 31 2020 2021 NT$ NT$ (In Millions) Lease liabilities - current $ 182 $ 173 Lease liabilities - noncurrent 817 1,741 $ 999 $ 1,914 |
Compensation of Directors and Other Key Management Personnel | The compensation of directors and other key management personnel for the years ended December 31, 2019, 2020 and 2021 were as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Short-term employee benefits $ 263 $ 290 $ 321 Post-employment benefits 9 11 7 Share-based payment — — 2 $ 272 $ 301 $ 330 |
Pledged Assets (Tables)
Pledged Assets (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure Of Collateral [Abstract] | |
Assets Pledged as Collaterals | December 31 2020 2021 NT$ NT$ (In Millions) Property, plant and equipment $ 2,462 $ 2,432 Land held under development (included in inventories) 1,999 — Restricted assets (included in other assets - others) 209 163 $ 4,670 $ 2,595 |
Segment Information (Tables)
Segment Information (Tables) | 12 Months Ended |
Dec. 31, 2021 | |
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: Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Year ended December 31, 2019 Revenues From external customers $ 65,728 $ 95,469 $ 30,091 $ 11,485 $ 4,747 $ 207,520 Intersegment revenues 16,065 1,564 3,951 2,079 4,914 28,573 Segment revenues $ 81,793 $ 97,033 $ 34,042 $ 13,564 $ 9,661 236,093 Intersegment elimination (28,573 ) Consolidated revenues $ 207,520 Segment income (loss) before income tax $ 19,537 $ 11,250 $ 12,515 $ 799 $ (2,234 ) $ 41,867 Year ended December 31, 2020 Revenues From external customers $ 69,469 $ 90,230 $ 32,115 $ 8,695 $ 7,100 $ 207,609 Intersegment revenues 15,930 1,536 3,966 1,875 5,369 28,676 Segment revenues $ 85,399 $ 91,766 $ 36,081 $ 10,570 $ 12,469 236,285 Intersegment elimination (28,676 ) Consolidated revenues $ 207,609 Segment income (loss) before income tax $ 22,504 $ 8,777 $ 13,120 $ 829 $ (2,404 ) $ 42,826 Year ended December 31, 2021 Revenues From external customers $ 64,780 $ 95,249 $ 33,082 $ 9,096 $ 8,271 $ 210,478 Intersegment revenues 17,430 1,588 3,869 2,009 6,260 31,156 Segment revenues $ 82,210 $ 96,837 $ 36,951 $ 11,105 $ 14,531 241,634 Intersegment elimination (31,156 ) Consolidated revenues $ 210,478 Segment income (loss) before income tax $ 26,142 $ 6,362 $ 14,512 $ 1,165 $ (2,114 ) $ 46,067 |
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, 2019 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 459 $ 459 Interest income $ 15 $ 9 $ 20 $ 41 $ 166 $ 251 Interest expenses $ 5 $ 58 $ 1 $ 12 $ 28 $ 104 Operating costs and expenses $ 56,269 $ 72,952 $ 13,850 $ 11,427 $ 12,249 $ 166,747 Depreciation and amortization $ 14,842 $ 16,254 $ 2,914 $ 1,547 $ 792 $ 36,349 Capital expenditure $ 12,071 $ 7,773 $ 1,425 $ 1,117 $ 1,780 $ 24,166 Impairment loss on property, plant and equipment $ — $ — $ — $ — $ 93 $ 93 Reversal of impairment loss on investment properties $ 57 $ — $ — $ — $ — $ 57 Impairment loss on intangible assets $ — $ 9 $ — $ — $ — $ 9 Impairment loss on other assets $ 13 $ — $ 13 $ — $ 18 $ 44 For the year ended December 31, 2020 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 244 $ 244 Interest income $ 13 $ 5 $ 17 $ 22 $ 59 $ 116 Interest expenses $ 6 $ 56 $ 1 $ 10 $ 133 $ 206 Operating costs and expenses $ 59,371 $ 69,211 $ 15,241 $ 8,573 $ 14,447 $ 166,843 Depreciation and amortization $ 14,250 $ 17,800 $ 2,669 $ 1,450 $ 969 $ 37,138 Capital expenditure $ 11,483 $ 8,827 $ 1,397 $ 779 $ 1,025 $ 23,511 Gain (loss) on disposal of property, plant and equipment $ 1,442 $ (3 ) $ — $ — $ (11 ) $ 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 Domestic Fixed Communi- cations Business Mobile Communi- cations Business Internet Business International Fixed Communi- cations Business Others Total NT$ NT$ NT$ NT$ NT$ NT$ (In Millions) Share of profits of associates and joint ventures accounted for using equity method $ — $ — $ — $ — $ 421 $ 421 Interest income $ 7 $ 4 $ 13 $ 5 $ 66 $ 95 Interest expenses $ 4 $ 48 $ 1 $ 8 $ 157 $ 218 Operating costs and expenses $ 51,013 $ 74,973 $ 14,150 $ 8,409 $ 16,634 $ 165,179 Depreciation and amortization $ 13,978 $ 20,313 $ 2,471 $ 1,417 $ 1,037 $ 39,216 Capital expenditure $ 13,299 $ 16,809 $ 2,943 $ 445 $ 1,837 $ 35,333 Impairment loss on right-of-use assets $ — $ — $ — $ 420 $ — $ 420 Reversal of impairment loss on investment properties $ 83 $ — $ — $ — $ — $ 83 Impairment loss on intangible assets $ — $ 29 $ — $ — $ — $ 29 |
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 2019 2020 2021 NT$ NT$ NT$ (In Millions) Mobile services revenue $ 58,703 $ 56,724 $ 58,048 Sales of products 41,593 39,391 42,907 Local telephone and domestic long distance telephone services revenue 27,929 26,475 25,704 Broadband access and domestic leased line services revenue 22,116 22,420 23,012 Data communications internet services revenue 21,003 21,447 22,281 International network and leased line services revenue 7,066 3,884 4,367 Others 29,110 37,268 34,159 $ 207,520 $ 207,609 $ 210,478 |
Geographic Information | The geographic information for revenues was as follows: Year Ended December 31 2019 2020 2021 NT$ NT$ NT$ (In Millions) Taiwan, ROC $ 197,895 $ 200,881 $ 204,473 Overseas 9,625 6,728 6,005 $ 207,520 $ 207,609 $ 210,478 |
General - Additional Informatio
General - Additional Information (Detail) | 12 Months Ended |
Dec. 31, 2021 | |
General Information [Abstract] | |
Description of percentage of ownership interest | below 50% |
Summary of Significant Accoun_4
Summary of Significant Accounting Policies - Detail Information of Subsidiaries (Detail) | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Jul. 31, 2020 | |
Light Era Development Co., Ltd. ("LED") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Planning and development of real estate and intelligent buildings, and property management | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Donghwa Telecom Co., Ltd. ("DHT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International private leased circuit, IP VPN service, and IP transit services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Telecom Singapore Pte., Ltd. ("CHTS") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International private leased circuit, IP VPN service, and IP transit services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa System Integration Co., Ltd. ("CHSI") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Providing system integration services and telecommunications equipment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Investment Co., Ltd. ("CHI") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 89.00% | 89.00% | |
CHYP Multimedia Marketing & Communications Co., Ltd. ("CHYP") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Digital information supply services and advertisement services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Prime Asia Investments Group Ltd. (B.V.I.) ("Prime Asia") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Spring House Entertainment Tech. Inc. ("SHE") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Software design services, internet contents production and play, and motion picture production and distribution | ||
Percentage of Ownership interests | 56.00% | 56.00% | |
Chunghwa Telecom Global, Inc. ("CHTG") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International private leased circuit, internet services, and transit services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Telecom Vietnam Co., Ltd. ("CHTV") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Intelligent energy saving solutions, international circuit, and information and communication technology (“ICT”) services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Smartfun Digital Co., Ltd. ("SFD") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Providing diversified family education digital services | ||
Percentage of Ownership interests | 65.00% | 65.00% | |
Chunghwa Telecom Japan Co., Ltd. ("CHTJ") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International private leased circuit, IP VPN service, and IP transit services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Sochamp Technology Inc. ("CHST") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Design, development and production of Automatic License Plate Recognition software and hardware | ||
Percentage of Ownership interests | 51.00% | 51.00% | |
Honghwa International Co., Ltd. ("HHI") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Telecommunications engineering, sales agent of mobile phone plan application and other business services, etc. | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Leading Photonics Tech Co., Ltd. ("CLPT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Production and sale of electronic components and finished products | ||
Percentage of Ownership interests | 75.00% | 75.00% | |
Chunghwa Telecom (Thailand) Co., Ltd. ("CHTT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International private leased circuit, IP VPN service, ICT and cloud VAS services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
CHT Security Co., Ltd. ("CHTSC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Computing equipment installation, wholesale of computing and business machinery equipment and software, management consulting services, data processing services, digital information supply services and internet identify services | ||
Percentage of Ownership interests | 77.00% | 80.00% | |
International Integrated Systems, Inc. ("IISI") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | IT solution provider, IT application consultation, system integration and package solution | ||
Percentage of Ownership interests | 51.00% | 51.00% | 51.54% |
Chunghwa Telecom Co., Ltd. ("Chunghwa") [Member] | Senao International Co., Ltd. ("SENAO") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Handset and peripherals retailer, sales of CHT mobile phone plans as an agent | ||
Percentage of Ownership interests | 28.00% | 28.00% | |
Chunghwa Telecom Co., Ltd. ("Chunghwa") [Member] | CHIEF Telecom Inc. ("CHIEF") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Network integration, internet data center (“IDC”), communications integration and cloud application services | ||
Percentage of Ownership interests | 56.00% | 56.00% | |
Senao International Co., Ltd. ("SENAO") [Member] | Senao International (Samoa) Holding Ltd. ("SIS") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Senao International Co., Ltd. ("SENAO") [Member] | SENYOUNG Insurance Agent Co., Ltd. ("SENYOUNG") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Property and liability insurance agency | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Senao International Co., Ltd. ("SENAO") [Member] | Youth Co., Ltd. ("Youth") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Sale of information and communication technologies products | ||
Percentage of Ownership interests | 96.00% | 96.00% | |
Senao International Co., Ltd. ("SENAO") [Member] | Aval Technologies Co., Ltd. ("Aval") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Sale of information and communication technologies products | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Precision Test Tech. Co., Ltd. ("CHPT") [Member] | CHPT Japan Co., Ltd. ("CHPT (JP)") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Related services of electronic parts, machinery processed products and printed circuit board | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Precision Test Tech. Co., Ltd. ("CHPT") [Member] | Chunghwa Precision Test Tech. International Ltd. ("CHPT (International)") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Wholesale and retail of electronic materials, and investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Precision Test Tech. Co., Ltd. ("CHPT") [Member] | Chunghwa Precision Test Tech. USA Corporation ("CHPT (US)") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Design and after-sale services of semiconductor testing components and printed circuit board | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Youth Co., Ltd. ("Youth") [Member] | ISPOT Co., Ltd. ("ISPOT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Sale of information and communication technologies products | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Youth Co., Ltd. ("Youth") [Member] | Youyi Co., Ltd. ("Youyi") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Maintenance of information and communication technologies products | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Aval Technologies Co., Ltd. ("Aval") [Member] | Wiin Technology Co., Ltd. ("Wiin") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Sale of information and communication technologies products | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
SENYOUNG Insurance Agent Co., Ltd. ("SENYOUNG") [Member] | Senaolife Insurance Agent Co., Ltd. ("Senaolife") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Life insurance services | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
CHIEF Telecom Inc. ("CHIEF") [Member] | Unigate Telecom Inc. ("Unigate") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Telecommunications and internet service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
CHIEF Telecom Inc. ("CHIEF") [Member] | Chief International Corp. ("CIC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Telecommunications and internet service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
CHIEF Telecom Inc. ("CHIEF") [Member] | Shanghai Chief Telecom Co., Ltd. ("SCT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Telecommunications and internet service | ||
Percentage of Ownership interests | 49.00% | 49.00% | |
Chunghwa Investment Co., Ltd. ("CHI") [Member] | Chunghwa Precision Test Tech. Co., Ltd. ("CHPT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Production and sale of semiconductor testing components and printed circuit board | ||
Percentage of Ownership interests | 34.00% | 34.00% | |
Senao International (Samoa) Holding Ltd. ("SIS") [Member] | Senao International HK Limited ("SIHK") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | International investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Senao International HK Limited ("SIHK") [Member] | Senao Trading (Fujian) Co., Ltd. ("STF") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Sale of information and communication technologies products | ||
Percentage of Ownership interests | 0.00% | 100.00% | |
Prime Asia Investments Group Ltd. (B.V.I.) ("Prime Asia") [Member] | Chunghwa Hsingta Co., Ltd. ("CHC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Precision Test Tech. International Ltd. ("CHPT (International)") [Member] | Su Zhou Precision Test Tech. Ltd. ("SZPT") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Assembly processed of circuit board, design of printed circuit board and related consultation service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Precision Test Tech. International Ltd. ("CHPT (International)") [Member] | Shanghai Taihua Electronic Technology Limited ("STET") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Design of printed circuit board and related consultation service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Chunghwa Hsingta Co., Ltd. ("CHC") [Member] | Chunghwa Telecom (China) Co., Ltd. ("CTC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Integrated information and communication solution services for enterprise clients, and intelligent energy network service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
International Integrated Systems, Inc. ("IISI") [Member] | Unitronics Technology Corp. ("UTC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Development and maintenance of information system | ||
Percentage of Ownership interests | 99.96% | 99.96% | |
International Integrated Systems, Inc. ("IISI") [Member] | IISI Investment Co., Ltd. ("IICL") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
International Integrated Systems, Inc. ("IISI") [Member] | Infoexplorer International Co., Ltd.("IESA") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Infoexplorer International Co., Ltd.("IESA") [Member] | International Integrated Systems (Hong Kong) Limited ("IEHK") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment and technical consulting service | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
IISI Investment Co., Ltd. ("IICL") [Member] | Leading Tech Co., Ltd. ("LTCL") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Leading Tech Co., Ltd. ("LTCL") [Member] | Leading Systems Co., Ltd. ("LSCL") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Investment | ||
Percentage of Ownership interests | 100.00% | 100.00% | |
Leading Systems Co., Ltd. ("LSCL") [Member] | International Integrated Systems Inc. (Shanghai) ("IISS") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Development and maintenance of information system | ||
Percentage of Ownership interests | 0.00% | 100.00% | |
International Integrated Systems Inc. (Shanghai) ("IISS") [Member] | Huiyu Shanghai Management Consultancy Co., Ltd. ("HSMC") [Member] | |||
Disclosure of subsidiaries [Line Items] | |||
Main Businesses and Products | Development and maintenance of information system | ||
Percentage of Ownership interests | 0.00% | 0.00% |
Summary of Significant Accoun_5
Summary of Significant Accounting Policies - Detail Information of Subsidiaries (Parenthetical) (Detail) | Dec. 31, 2021 | Oct. 31, 2021 | Aug. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Jul. 31, 2020 | Jul. 01, 2020 | Apr. 30, 2020 |
Spring House Entertainment Tech. Inc. ("SHE") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 56.00% | 56.00% | |||||||
CHT Security Co., Ltd. ("CHTSC") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 77.00% | 80.00% | |||||||
International Integrated Systems, Inc. ("IISI") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 51.00% | 51.00% | 51.54% | ||||||
Percentage of additional ownership interest obtained | 20.38% | ||||||||
Senao International (Samoa) Holding Ltd. ("SIS") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership | 48.15% | 8.14% | |||||||
Senao International HK Limited ("SIHK") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership | 47.79% | 8.15% | |||||||
Chunghwa Telecom Co., Ltd. and Chunghwa Investment Co., Ltd. [Member] | CHIEF Telecom Inc. ("CHIEF") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 58.89% | 59.08% | |||||||
Youth Co., Ltd. ("Youth") [Member] | Senao International Co., Ltd. (SENAO) [Member] | Bottom of Range [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 92.89% | ||||||||
Youth Co., Ltd. ("Youth") [Member] | Senao International Co., Ltd. (SENAO) [Member] | Top of Range [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 95.79% | ||||||||
Chunghwa Investment Co., Ltd. ("CHI") [Member] | Chunghwa Precision Test Tech. Co., Ltd. ("CHPT") [Member] | Bottom of Range [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 50.00% | ||||||||
Chunghwa Precision Test Tech. International Ltd. ("CHPT (International)") [Member] | Su Zhou Precision Test Tech. Ltd. ("SZPT") [Member] | |||||||||
Disclosure of subsidiaries [Line Items] | |||||||||
Percentage of Ownership interests | 100.00% | 100.00% |
Summary of Significant Accoun_6
Summary of Significant Accounting Policies - Additional information (Detail) - Chunghwa Investment Co., Ltd. ("CHI") [Member] | Dec. 31, 2021 |
CHIEF Telecom Inc. ("CHIEF") [Member] | |
Disclosure of subsidiaries [Line Items] | |
Percentage of Ownership interests | 2.94% |
Senao International Co., Ltd. (SENAO) [Member] | |
Disclosure of subsidiaries [Line Items] | |
Percentage of Ownership interests | 0.39% |
Critical Accounting Judgments_2
Critical Accounting Judgments and Key Sources of Estimation, Uncertainty and Assumption - Additional Information (Detail) | 12 Months Ended |
Dec. 31, 2021 | |
Top of Range [Member] | |
Disclosure Of Accounting Judgements And Estimates [Line Items] | |
Proportion of ownership interest held in some of entities | 50.00% |
U.S. Dollar Amounts - Additiona
U.S. Dollar Amounts - Additional Information (Detail) | Dec. 31, 2021TWD ($) |
Foreign Exchange Rates [Abstract] | |
Exchange rate used for convenience translations | 27.74 |
Cash and Cash Equivalents - Sum
Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2018TWD ($) |
Cash | ||||||
Cash on hand | $ 440 | $ 487 | ||||
Bank deposits | 15,647 | 10,961 | ||||
Cash | 16,087 | 11,448 | ||||
Cash equivalents (with maturities of less than three months) | ||||||
Commercial papers | 13,530 | 14,061 | ||||
Negotiable certificates of deposit | 7,500 | 2,600 | ||||
Time deposits | 2,657 | 2,308 | ||||
Stimulus vouchers | 5 | 3 | ||||
Cash equivalents | 23,692 | 18,972 | ||||
Cash and cash equivalents | $ 39,779 | $ 1,434 | $ 30,420 | $ 1,097 | $ 34,050 | $ 27,645 |
Cash and Cash Equivalents - Ann
Cash and Cash Equivalents - Annual Yield Rates of Bank Deposits, Commercial Paper, Negotiable Certificates of Deposit and Time Deposits and Repurchase Agreements Collateralized by Bonds (Detail) | Dec. 31, 2021 | Dec. 31, 2020 |
Bank deposits [Member] | Top of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.45% | 0.40% |
Bank deposits [Member] | Bottom of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.00% | 0.00% |
Commercial papers [Member] | Top of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.30% | 0.26% |
Commercial papers [Member] | Bottom of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.17% | 0.14% |
Negotiable certificates of deposit [Member] | Top of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.30% | 0.30% |
Negotiable certificates of deposit [Member] | Bottom of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.27% | 0.24% |
Time deposits [Member] | Top of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 3.60% | 3.60% |
Time deposits [Member] | Bottom of Range [Member] | ||
Disclosure of cash and cash equivalents [Line Items] | ||
Yield rate | 0.01% | 0.10% |
Financial Instruments at Fair_3
Financial Instruments at Fair Value Through Profit or Loss - Summary of Financial Instruments at Fair Value through Profit or Loss (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Financial assets-current | |||
Financial assets-current, Mandatorily measured at FVTPL | $ 3 | $ 10 | |
Financial assets-noncurrent | |||
Non-derivatives | 909 | 677 | |
Financial liabilities-current | |||
Financial liabilities held for trading, Derivatives (not designated for hedge), Forward exchange contracts | 6 | $ 0 | 0 |
Forward exchange contracts [Member] | |||
Financial assets-current | |||
Derivatives (not designated for hedge) | 0 | 2 | |
Listed stocks domestic [Member] | |||
Financial assets-current | |||
Non-derivatives | 3 | 8 | |
Non listed stocks domestic [Member] | |||
Financial assets-noncurrent | |||
Non-derivatives | 648 | 441 | |
Non listed stocks foreign [Member] | |||
Financial assets-noncurrent | |||
Non-derivatives | 237 | 236 | |
Limited partnership - domestic [Member] | |||
Financial assets-noncurrent | |||
Non-derivatives | $ 24 | $ 0 |
Financial Instruments at Fair_4
Financial Instruments at Fair Value Through Profit or Loss - Outstanding Forward Exchange Contracts Not Designated for Hedge (Detail) - Forward exchange contracts [Member] € in Millions, $ in Millions, $ in Millions | 12 Months Ended | ||||
Dec. 31, 2021TWD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2021EUR (€) | Dec. 31, 2020USD ($) | Dec. 31, 2020EUR (€) | |
EUR [Member] | |||||
Disclosure of detailed information about financial instruments [Line Items] | |||||
Currency | NT$/EUR | NT$/EUR | |||
Maturity Period | 2022.03 | 2021.03 | |||
Contract Amount | $ 257 | $ 50 | € 8 | € 2 | |
Taiwan, New Dollars | |||||
Disclosure of detailed information about financial instruments [Line Items] | |||||
Currency | US$/NT$ | ||||
Maturity Period | 2021.02-03 | ||||
Contract Amount | $ 379 | $ 14 |
Financial Assets at Fair Valu_3
Financial Assets at Fair Value through Other Comprehensive Income Noncurrent - Summary of Financial Assets at Fair Value through Other Comprehensive Income Noncurrent (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure of financial assets [Line Items] | |||
Financial assets at fair value through other comprehensive income | $ 3,616 | $ 130 | $ 7,193 |
Domestic listed stocks [Member] | |||
Disclosure of financial assets [Line Items] | |||
Financial assets at fair value through other comprehensive income | 459 | 2,754 | |
Domestic non-listed stocks [Member] | |||
Disclosure of financial assets [Line Items] | |||
Financial assets at fair value through other comprehensive income | 3,030 | 4,325 | |
Foreign non-listed stocks [Member] | |||
Disclosure of financial assets [Line Items] | |||
Financial assets at fair value through other comprehensive income | $ 127 | $ 114 |
Financial Assets at Fair Valu_4
Financial Assets at Fair Value through Other Comprehensive Income Noncurrent - Additional Information (Detail) - TWD ($) $ in Millions | 12 Months Ended | |||||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Oct. 31, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | |
Disclosure of financial assets [Line Items] | ||||||
Fair value amount | $ 2,636 | $ 568 | ||||
Unrealized gain on financial assets at FVOCI | 60 | 17 | ||||
Dividends received | 154 | $ 246 | $ 296 | |||
Outstanding Investments [Member] | ||||||
Disclosure of financial assets [Line Items] | ||||||
Dividends received | 153.9 | |||||
UUPON Inc. (UUPON) [Member] | ||||||
Disclosure of financial assets [Line Items] | ||||||
Fair value amount | $ 1 | |||||
Cotech Engineering Fuzhou Corp. [Member] | ||||||
Disclosure of financial assets [Line Items] | ||||||
Fair value amount | $ 4 | |||||
AgriTalk Technology Inc. (“ATT”) [Member] | ||||||
Disclosure of financial assets [Line Items] | ||||||
Investments reclassified from financial asset at FVOCI to associates at fair value | $ 19 | |||||
Imedtac Co., Ltd. (“IME”) [Member] | ||||||
Disclosure of financial assets [Line Items] | ||||||
Investments reclassified from financial asset at FVOCI to associates at fair value | $ 45 | |||||
PChome Online Inc. | ||||||
Disclosure of financial assets [Line Items] | ||||||
Private placement | $ 200 |
Trade Notes and Accounts Rece_3
Trade Notes and Accounts Receivable, Net - Summary of Trade Notes and Accounts Receivable, Net (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Jan. 01, 2020TWD ($) |
Disclosure Of Financial Assets [Line Items] | ||||
Trade notes and accounts receivable | $ 23,947 | $ 863 | $ 22,622 | $ 26,408 |
Less: Loss allowance | (1,605) | (2,154) | ||
Gross carrying amount [Member] | ||||
Disclosure Of Financial Assets [Line Items] | ||||
Trade notes and accounts receivable | $ 25,552 | $ 24,776 |
Trade Notes and Accounts Rece_4
Trade Notes and Accounts Receivable, Net - Additional Information (Detail) | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Bottom of Range [Member] | ||
Disclosure Of Financial Assets [Line Items] | ||
Main credit terms | 30 days | 30 days |
Top of Range [Member] | ||
Disclosure Of Financial Assets [Line Items] | ||
Main credit terms | 90 days | 90 days |
Trade Notes and Accounts Rece_5
Trade Notes and Accounts Receivable, Net - Provision Matrix Arising from Telecommunications and Project Business (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Jan. 01, 2020TWD ($) |
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 23,947 | $ 863 | $ 22,622 | $ 26,408 |
Less: Loss allowance | (1,605) | (2,154) | ||
Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 25,552 | 24,776 | ||
Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | (789) | (797) | ||
Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 17,485 | 16,806 | ||
Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 16,696 | 16,009 | ||
Project Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 50.00% | 50.00% | ||
Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (784) | (1,320) | ||
Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 4,781 | 4,866 | ||
Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 3,997 | $ 3,546 | ||
Not Past Due [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 0.00% | 0.00% | 0.00% | |
Not Past Due [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 1.00% | 1.00% | 2.00% | |
Not Past Due [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (51) | $ (56) | ||
Not Past Due [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 16,411 | 15,839 | ||
Not Past Due [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 16,360 | $ 15,783 | ||
Not Past Due [Member] | Project Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 0.00% | 0.00% | 0.00% | |
Not Past Due [Member] | Project Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 5.00% | 5.00% | 5.00% | |
Not Past Due [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (8) | $ (20) | ||
Not Past Due [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 3,988 | 3,473 | ||
Not Past Due [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 3,980 | $ 3,453 | ||
Less Than 30 Days [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 1.00% | 1.00% | 2.00% | |
Less Than 30 Days [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 22.00% | 22.00% | 24.00% | |
Less Than 30 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (23) | $ (21) | ||
Less Than 30 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 282 | 204 | ||
Less Than 30 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 259 | $ 183 | ||
Less Than 30 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 5.00% | 5.00% | 5.00% | |
Less Than 30 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ 0 | $ (3) | ||
Less Than 30 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 0 | 64 | ||
Less Than 30 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 0 | $ 61 | ||
31-60 Days [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 3.00% | 3.00% | 3.00% | |
31-60 Days [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 62.00% | 62.00% | 68.00% | |
31-60 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (29) | $ (24) | ||
31-60 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 82 | 51 | ||
31-60 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 53 | $ 27 | ||
31-60 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 10.00% | 10.00% | 10.00% | |
31-60 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (1) | $ (3) | ||
31-60 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 7 | 27 | ||
31-60 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 6 | $ 24 | ||
61-90 Days [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 11.00% | 11.00% | 11.00% | |
61-90 Days [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 80.00% | 80.00% | 83.00% | |
61-90 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (30) | $ (25) | ||
61-90 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 45 | 31 | ||
61-90 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 15 | $ 6 | ||
61-90 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 30.00% | 30.00% | 30.00% | |
61-90 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (4) | $ (3) | ||
61-90 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 14 | 9 | ||
61-90 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 10 | $ 6 | ||
91-120 Days [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 25.00% | 25.00% | 28.00% | |
91-120 Days [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 90.00% | 90.00% | 90.00% | |
91-120 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (25) | $ (24) | ||
91-120 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 31 | 30 | ||
91-120 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 6 | $ 6 | ||
91-120 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 50.00% | 50.00% | 50.00% | |
91-120 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ 0 | $ (1) | ||
91-120 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 0 | 2 | ||
91-120 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 0 | $ 1 | ||
121-180 Days [Member] | Telecommunications Business [Member] | Bottom of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 49.00% | 49.00% | 52.00% | |
121-180 Days [Member] | Telecommunications Business [Member] | Top of Range [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 97.00% | 97.00% | 96.00% | |
121-180 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (28) | $ (21) | ||
121-180 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 31 | 25 | ||
121-180 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 3 | $ 4 | ||
121-180 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 80.00% | 80.00% | 80.00% | |
121-180 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (1) | $ (2) | ||
121-180 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 2 | 3 | ||
121-180 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 1 | $ 1 | ||
Over 180 Days [Member] | Telecommunications Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 100.00% | 100.00% | 100.00% | |
Over 180 Days [Member] | Telecommunications Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (603) | $ (626) | ||
Over 180 Days [Member] | Telecommunications Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 603 | 626 | ||
Over 180 Days [Member] | Telecommunications Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 0 | $ 0 | ||
Over 180 Days [Member] | Project Business [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Expected credit loss rate | 100.00% | 100.00% | 100.00% | |
Over 180 Days [Member] | Project Business [Member] | Loss allowance [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Less: Loss allowance | $ (770) | $ (1,288) | ||
Over 180 Days [Member] | Project Business [Member] | Gross carrying amount [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | 770 | 1,288 | ||
Over 180 Days [Member] | Project Business [Member] | Amortized Cost [Member] | ||||
Disclosure of financial assets that are either past due or impaired [Line Items] | ||||
Trade notes and accounts receivable | $ 0 | $ 0 |
Trade Notes and Accounts Rece_6
Trade Notes and Accounts Receivable, Net - Provision Matrix Arising from Telecommunications and Project Business (Parenthetical) (Detail) | Dec. 31, 2021 |
Project Business [Member] | Bottom of Range [Member] | |
Disclosure of financial assets that are either past due or impaired [Line Items] | |
Expected credit loss rate | 50.00% |
Trade Notes and Accounts Rece_7
Trade Notes and Accounts Receivable, Net - Movements of Allowance for Doubtful Accounts, Trade Notes and Accounts Receivable (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Financial Assets [Line Items] | |||
Beginning balance | $ 2,154 | ||
Add: Provision for credit loss | 123 | $ 49 | $ (54) |
Ending balance | 1,605 | 2,154 | |
Trade notes and accounts receivable [Member] | |||
Disclosure Of Financial Assets [Line Items] | |||
Beginning balance | 2,154 | 2,360 | |
Add: Provision for credit loss | 123 | 49 | |
Add: Acquired by business combinations (Note 14) | 2 | ||
Less: Amounts written off | (672) | (257) | |
Ending balance | $ 1,605 | $ 2,154 | $ 2,360 |
Inventories - Summary of Invent
Inventories - Summary of Inventories (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Classes Of Inventories [Abstract] | |||
Merchandise | $ 4,070 | $ 3,903 | |
Project in process | 4,805 | 6,167 | |
Work in process | 145 | 126 | |
Raw materials | 224 | 137 | |
Inventories subtotal | 9,244 | 10,333 | |
Land held under development | 1,999 | 1,999 | |
Construction in progress | 84 | 77 | |
Inventories | $ 11,327 | $ 408 | $ 12,409 |
Inventories - Additional Inform
Inventories - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Classes Of Inventories [Abstract] | ||||
Operating costs related to inventories | $ 51,180 | $ 53,847 | $ 49,258 | |
Valuation loss on inventories recognized as operating costs | 207 | $ 7 | 1,161 | $ 475 |
Inventory to be recovered longer than twelve months | $ 2,083 | $ 2,076 |
Prepayments - Summary of Prepay
Prepayments - Summary of Prepayments (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Prepayments [Abstract] | |||
Prepaid rents | $ 2,349 | $ 2,864 | |
Others | 1,779 | 1,656 | |
Prepayments | 4,128 | 4,520 | |
Prepaid rents | 566 | 652 | |
Others | 1,764 | 1,654 | |
Current prepayments | 2,330 | $ 84 | 2,306 |
Prepaid rents | 1,783 | 2,212 | |
Others | 15 | 2 | |
Noncurrent prepayments | $ 1,798 | $ 65 | $ 2,214 |
Other Current Monetary Assets -
Other Current Monetary Assets - Summary of Other Current Monetary Assets (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure Of Other Current Monetary Assets [Abstract] | |||
Time deposits and negotiable certificates of deposit with maturities of more than three months | $ 3,499 | $ 4,596 | |
Others | 1,562 | 1,528 | |
Other current monetary assets | $ 5,061 | $ 183 | $ 6,124 |
Other Current Monetary Assets_2
Other Current Monetary Assets - Annual Yield Rates of Time Deposits, Negotiable Certificates of Deposits and Repurchase Agreements Collateralized by Bonds with Maturities of more Than Three Months (Detail) | Dec. 31, 2021 | Dec. 31, 2020 |
Bottom of range [Member] | ||
Disclosure of annual yield rates of other current monetary assets [Line Items] | ||
Time deposits and negotiable certificates of deposit with maturities of more than three months | 0.03% | 0.07% |
Top of Range [Member] | ||
Disclosure of annual yield rates of other current monetary assets [Line Items] | ||
Time deposits and negotiable certificates of deposit with maturities of more than three months | 2.70% | 2.25% |
Subsidiaries - Less Than Wholly
Subsidiaries - Less Than Wholly Owned Subsidiaries of the Company That Have Material Noncontrolling Interests (Detail) $ in Millions, $ in Millions | 12 Months Ended | ||||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | |
Disclosure of subsidiaries [Line Items] | |||||
Profit Allocated to Noncontrolling Interests | $ 1,431 | $ 52 | $ 1,285 | $ 974 | |
Accumulated Noncontrolling Interests | $ 11,747 | $ 11,158 | $ 424 | ||
Senao International Co., Ltd. (SENAO) [Member] | |||||
Disclosure of subsidiaries [Line Items] | |||||
Place of Incorporation | Taiwan | Taiwan | |||
Principal Place of Business | Taiwan | Taiwan | |||
Proportion of Ownership Interests Held by Noncontrolling Interests | 72.00% | 72.00% | 72.00% | ||
Proportion of Voting Rights Held by Noncontrolling Interests | 72.00% | 72.00% | 72.00% | ||
Profit Allocated to Noncontrolling Interests | $ 421 | $ 312 | 291 | ||
Accumulated Noncontrolling Interests | $ 4,337 | $ 4,189 | |||
Chunghwa Precision Test Tech. Co., Ltd. (CHPT) [Member] | |||||
Disclosure of subsidiaries [Line Items] | |||||
Place of Incorporation | Taiwan | Taiwan | |||
Principal Place of Business | Taiwan | Taiwan | |||
Proportion of Ownership Interests Held by Noncontrolling Interests | 66.00% | 66.00% | 66.00% | ||
Proportion of Voting Rights Held by Noncontrolling Interests | 66.00% | 66.00% | 66.00% | ||
Profit Allocated to Noncontrolling Interests | $ 588 | $ 604 | $ 414 | ||
Accumulated Noncontrolling Interests | 4,933 | 4,606 | |||
Individually immaterial subsidiaries with noncontrolling interests [Member] | |||||
Disclosure of subsidiaries [Line Items] | |||||
Accumulated Noncontrolling Interests | $ 2,477 | $ 2,363 |
Subsidiaries - Summarized Finan
Subsidiaries - Summarized Financial Information Before Intercompany Eliminations (Detail) $ in Millions, $ in Millions | 12 Months Ended | ||||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | |
Disclosure of subsidiaries [Line Items] | |||||
Current assets | $ 91,021 | $ 81,803 | $ 3,281 | ||
Noncurrent assets | 421,854 | 424,377 | 15,208 | ||
Current liabilities | 66,229 | 73,223 | 2,387 | ||
Noncurrent liabilities | 57,516 | 45,684 | 2,074 | ||
Equity attributable to the parent | 377,383 | 376,115 | 13,604 | ||
NONCONTROLLING INTERESTS | 11,747 | 11,158 | $ 424 | ||
NET INCOME | 37,047 | $ 1,336 | 34,704 | $ 33,921 | |
Profit attributable to the parent | 35,616 | 1,284 | 33,419 | 32,947 | |
Profit attributable to noncontrolling interests | 1,431 | 52 | 1,285 | 974 | |
Total other comprehensive income (loss), net of income tax | (966) | (35) | 1,290 | 1,328 | |
Total comprehensive income attributable to the parent | 34,652 | 1,249 | 34,713 | 34,282 | |
Total comprehensive income attributable to noncontrolling interests | 1,429 | 52 | 1,281 | 967 | |
TOTAL COMPREHENSIVE INCOME | 36,081 | 1,301 | 35,994 | 35,249 | |
Net cash flow from operating activities | 74,858 | 2,699 | 74,456 | 72,427 | |
Net cash flow from investing activities | (31,172) | (1,125) | (68,254) | (27,127) | |
Net cash flow from financing activities | (34,314) | (1,237) | (9,802) | (38,934) | |
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | (13) | 0 | (30) | 39 | |
Net cash inflow | 9,359 | $ 337 | (3,630) | 6,405 | |
Senao International Co., Ltd. (SENAO) [Member] | |||||
Disclosure of subsidiaries [Line Items] | |||||
Current assets | 7,963 | 6,834 | |||
Noncurrent assets | 2,981 | 3,194 | |||
Current liabilities | 4,561 | 3,854 | |||
Noncurrent liabilities | 418 | 416 | |||
Equity attributable to the parent | 1,628 | 1,569 | |||
NONCONTROLLING INTERESTS | 4,337 | 4,189 | |||
Revenues and income | 31,302 | 27,232 | 29,131 | ||
Costs and expenses | 30,715 | 26,797 | 28,725 | ||
NET INCOME | 587 | 435 | 406 | ||
Profit attributable to the parent | 166 | 123 | 115 | ||
Profit attributable to noncontrolling interests | 421 | 312 | 291 | ||
Other comprehensive income (loss) attributable to the parent | 2 | 1 | (7) | ||
Other comprehensive income attributable to noncontrolling interests | 5 | 2 | 22 | ||
Total other comprehensive income (loss), net of income tax | 7 | 3 | 15 | ||
Total comprehensive income attributable to the parent | 168 | 124 | 108 | ||
Total comprehensive income attributable to noncontrolling interests | 426 | 314 | 313 | ||
TOTAL COMPREHENSIVE INCOME | 594 | 438 | 421 | ||
Net cash flow from operating activities | 654 | 862 | 538 | ||
Net cash flow from investing activities | 215 | 54 | 235 | ||
Net cash flow from financing activities | (690) | (687) | (718) | ||
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 0 | 0 | 0 | ||
Net cash inflow | 179 | 229 | 55 | ||
Dividends paid to noncontrolling interests | 278 | 269 | 269 | ||
Chunghwa Precision Test Tech. Co., Ltd. (CHPT) [Member] | |||||
Disclosure of subsidiaries [Line Items] | |||||
Current assets | 4,657 | 4,122 | |||
Noncurrent assets | 4,063 | 4,013 | |||
Current liabilities | 1,183 | 1,115 | |||
Noncurrent liabilities | 32 | 12 | |||
Equity attributable to the parent | 2,572 | 2,402 | |||
NONCONTROLLING INTERESTS | 4,933 | 4,606 | |||
Revenues and income | 4,254 | 4,221 | 3,404 | ||
Costs and expenses | 3,360 | 3,301 | 2,775 | ||
NET INCOME | 894 | 920 | 629 | ||
Profit attributable to the parent | 306 | 316 | 215 | ||
Profit attributable to noncontrolling interests | 588 | 604 | 414 | ||
Other comprehensive income (loss) attributable to the parent | (1) | 0 | (1) | ||
Other comprehensive income attributable to noncontrolling interests | (2) | 0 | (2) | ||
Total other comprehensive income (loss), net of income tax | (3) | 0 | (3) | ||
Total comprehensive income attributable to the parent | 305 | 316 | 214 | ||
Total comprehensive income attributable to noncontrolling interests | 586 | 604 | 412 | ||
TOTAL COMPREHENSIVE INCOME | 891 | 920 | 626 | ||
Net cash flow from operating activities | 1,090 | 1,483 | 507 | ||
Net cash flow from investing activities | (519) | (533) | (1,426) | ||
Net cash flow from financing activities | (414) | (349) | (349) | ||
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | (1) | 1 | (5) | ||
Net cash inflow | 156 | 602 | (1,273) | ||
Dividends paid to noncontrolling interests | $ 259 | $ 216 | $ 216 |
Subsidiaries - Additional Infor
Subsidiaries - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Jul. 31, 2020 | Jul. 01, 2020TWD ($) | |
Disclosure of subsidiaries [Line Items] | ||||||
Revenue | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 | ||
Net income | $ 37,047 | $ 1,336 | 34,704 | $ 33,921 | ||
IISI and its Subsidiaries [Member] | ||||||
Disclosure of subsidiaries [Line Items] | ||||||
Fair value of trade notes and accounts receivable acquired | $ 165 | |||||
Gross contractual amount | 167 | |||||
Best estimates of contractual cash flows not expected to be collected as of acquisition date | $ 2 | |||||
Revenue | 208,605 | |||||
Net income | $ 34,747 | |||||
International Integrated Systems, Inc. ("IISI") [Member] | ||||||
Disclosure of subsidiaries [Line Items] | ||||||
Equity ownership percentage | 51.00% | 51.00% | 51.00% | 51.54% | ||
Percentage of additional ownership interest obtained | 20.38% | |||||
Chunghwa Telecom Co., Ltd. and Chunghwa Investment Co., Ltd. [Member] | CHIEF Telecom Inc. (CHIEF) [Member] | ||||||
Disclosure of subsidiaries [Line Items] | ||||||
Equity ownership percentage | 58.89% | 58.89% | 59.08% | |||
Chunghwa Telecom Co., Ltd. and Chunghwa Investment Co., Ltd. [Member] | CHT Security Co., Ltd. (CHTSC) [Member] | ||||||
Disclosure of subsidiaries [Line Items] | ||||||
Equity ownership percentage | 77.46% | 77.46% | ||||
Chunghwa Telecom Co., Ltd. and Chunghwa Investment Co., Ltd. [Member] | IISI Plan [Member] | ||||||
Disclosure of subsidiaries [Line Items] | ||||||
Equity ownership percentage | 51.02% | 51.02% | 51.20% |
Subsidiaries - Detailed Informa
Subsidiaries - Detailed Information of Equity Transactions (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
CHIEF Share-Based Payment [Member] | |||
Disclosure Of Classes Of Share Capital [Line Items] | |||
Cash consideration received from noncontrolling interests | $ 29 | $ 75 | $ 19 |
The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests | (17) | (49) | (20) |
Differences arising from equity transactions | 12 | 26 | (1) |
Additional paid-in capital - arising from changes in equities of subsidiaries | 12 | 26 | $ (1) |
SENAO not Proportionately participating in the Capital Increase of Youth [Member] | |||
Disclosure Of Classes Of Share Capital [Line Items] | |||
Cash consideration received from noncontrolling interests | 0 | ||
The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests | 0 | ||
Differences arising from equity transactions | 0 | ||
Additional paid-in capital - arising from changes in equities of subsidiaries | 0 | ||
IISI Share-Based Payment [Member] | |||
Disclosure Of Classes Of Share Capital [Line Items] | |||
Cash consideration received from noncontrolling interests | 4 | 7 | |
The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests | (1) | (7) | |
Differences arising from equity transactions | 3 | 0 | |
Additional paid-in capital - arising from changes in equities of subsidiaries | 3 | $ 0 | |
CHTSC Share-Based Payment [Member] | |||
Disclosure Of Classes Of Share Capital [Line Items] | |||
Cash consideration received from noncontrolling interests | 21 | ||
The proportionate share of the carrying amount of the net assets of the subsidiary transferred to noncontrolling interests | (19) | ||
Differences arising from equity transactions | 2 | ||
Additional paid-in capital - arising from changes in equities of subsidiaries | $ 2 |
Subsidiaries - Summary of Asset
Subsidiaries - Summary of Assets Acquired and Liabilities Assumed (Detail) $ in Millions | Jul. 01, 2020TWD ($) |
Current liabilities | |
Provisions | $ (15) |
IISI and its Subsidiaries [Member] | |
Current assets | |
Cash and cash equivalents | 588 |
Contract assets | 583 |
Trade notes and accounts receivable | 165 |
Inventories | 141 |
Prepayments | 114 |
Other current monetary assets | 114 |
Other current assets | 75 |
Noncurrent assets | |
Property, plant and equipment | 48 |
Right-of-use assets | 70 |
Intangible assets | 12 |
Deferred income tax assets | 6 |
Other noncurrent assets | 102 |
Current liabilities | |
Short-term loans | (4) |
Contract liabilities | (334) |
Trade notes and accounts payable | (257) |
Current tax liabilities | (19) |
Lease liabilities | (26) |
Other payables | (266) |
Provisions | (15) |
Other current liabilities | (30) |
Noncurrent liabilities | |
Deferred income tax liabilities | (3) |
Lease liabilities | (45) |
Net defined benefit liabilities | (32) |
Other noncurrent liabilities | (5) |
Identifiable assets acquired (liabilities assumed) | $ 982 |
Subsidiaries - Summary of Goodw
Subsidiaries - Summary of Goodwill Arising from Acquisition (Detail) - IISI and its Subsidiaries [Member] $ in Millions | Jul. 01, 2020TWD ($) |
Disclosure Of Business Combinations [Line Items] | |
Consideration transferred | $ 234 |
Add: Fair value of equity interest held before the acquisition date | 327 |
Add: Noncontrolling interest (48.46% of the identifiable net assets of IISI and its subsidiaries) | 476 |
Less: Fair value of identifiable net assets acquired | (982) |
Goodwill arising from acquisition | $ 55 |
Subsidiaries - Summary of Goo_2
Subsidiaries - Summary of Goodwill Arising from Acquisition (Parenthetical) (Detail) | Jul. 01, 2020 |
IISI and its Subsidiaries [Member] | |
Disclosure Of Business Combinations [Line Items] | |
Percentage of noncontrolling interest in identifiable net assets | 48.46% |
Subsidiaries - Summary of Net C
Subsidiaries - Summary of Net Cash Inflow on Acquisition of Subsidiaries (Detail) - IISI and its Subsidiaries [Member] $ in Millions | Jul. 01, 2020TWD ($) |
Disclosure Of Business Combinations [Line Items] | |
Cash and cash equivalents acquired | $ 588 |
Less: Consideration paid in cash | (234) |
Net cash inflow on acquisition of subsidiaries | $ 354 |
Subsidiaries - Summary of Impac
Subsidiaries - Summary of Impact of Acquisition on Financial Results of Company (Detail) - IISI and its Subsidiaries [Member] $ in Millions | 6 Months Ended |
Dec. 31, 2020TWD ($) | |
Disclosure Of Business Combinations [Line Items] | |
Revenue | $ 1,348 |
Profit | $ 68 |
Investments Accounted for Usi_3
Investments Accounted for Using Equity Method - Investments in Associates (Detail) $ in Millions | 12 Months Ended | |||||||||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | Jun. 30, 2021TWD ($) | Mar. 31, 2021TWD ($) | Jun. 30, 2020 | Nov. 30, 2019TWD ($) | Feb. 28, 2019 | |
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 7,127,000,000 | $ 6,685,000,000 | ||||||||
Investment in joint venture | 10,000,000 | 10,000,000 | ||||||||
Investments accounted for using equity method | 7,137,000,000 | 6,695,000,000 | $ 257 | |||||||
The Company’s share of profits | 421,000,000 | $ 15 | 244,000,000 | $ 459,000,000 | ||||||
Next Commercial Bank Co., Ltd. (“NCB”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | 3,592,000,000 | 3,777,000,000 | $ 4,190,000,000 | |||||||
Investments accounted for using equity method | $ 3,592,000,000 | $ 3,777,000,000 | ||||||||
Percentage of ownership in associates | 41.90% | 41.90% | 41.90% | 41.90% | 41.90% | |||||
Senao Networks, Inc. ("SNI") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 926,000,000 | $ 841,000,000 | ||||||||
Percentage of ownership in associates | 34.00% | 34.00% | 34.00% | |||||||
Fair values based on the closing market prices | $ 1,699,000,000 | $ 1,708,000,000 | ||||||||
ST-2 Satellite Ventures Pte., Ltd. ("STS") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 518,000,000 | $ 488,000,000 | ||||||||
Percentage of ownership in associates | 38.00% | 38.00% | 38.00% | |||||||
International Integrated Systems, Inc. ("IISI") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 0 | $ 0 | ||||||||
Percentage of ownership in associates | 0.00% | 0.00% | 31.47% | 0.00% | 31.16% | |||||
Viettel-CHT Co., Ltd. ("Viettel-CHT") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 447,000,000 | $ 363,000,000 | ||||||||
Percentage of ownership in associates | 30.00% | 30.00% | 30.00% | |||||||
Taiwan International Standard Electronics Co., Ltd. ("TISE") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 341,000,000 | $ 324,000,000 | ||||||||
Percentage of ownership in associates | 40.00% | 40.00% | 40.00% | |||||||
Chunghwa PChome Fund I Co., Ltd. ("CPFI") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 221,000,000 | $ 193,000,000 | ||||||||
Percentage of ownership in associates | 50.00% | 50.00% | 50.00% | |||||||
KingwayTek Technology Co., Ltd. ("KWT") - Listed [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 222,000,000 | $ 213,000,000 | ||||||||
So-net Entertainment Taiwan Limited ("So-net") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 217,000,000 | $ 225,000,000 | ||||||||
Percentage of ownership in associates | 30.00% | 30.00% | 30.00% | |||||||
WiAdvance Technology Corporation ("WATC") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 254,000,000 | $ 0 | ||||||||
Taiwan International Ports Logistics Corporation ("TIPL") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 70,000,000 | $ 56,000,000 | ||||||||
Percentage of ownership in associates | 27.00% | 27.00% | 27.00% | |||||||
Click Force Co., Ltd. ("CF") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 37,000,000 | $ 33,000,000 | ||||||||
Percentage of ownership in associates | 49.00% | 49.00% | 49.00% | |||||||
KKBOX Taiwan Co., Ltd. ("KKBOXTW") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 157,000,000 | $ 163,000,000 | ||||||||
Percentage of ownership in associates | 30.00% | 30.00% | 30.00% | |||||||
Alliance Digital Tech Co., Ltd. ("ADT") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 0 | $ 3,000,000 | ||||||||
Percentage of ownership in associates | 0.00% | 14.00% | 0.00% | |||||||
CHT Infinity Singapore Pte. Ltd. (“CISG”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 55,000,000 | $ 0 | $ 56,000,000 | |||||||
Percentage of ownership in associates | 40.00% | |||||||||
Cornerstone Ventures Co., Ltd. ("CVC") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 7,000,000 | $ 6,000,000 | ||||||||
Percentage of ownership in associates | 49.00% | 49.00% | 49.00% | |||||||
MeWorks LIMITED (HK) ("MeWorks") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 0 | $ 0 | ||||||||
Percentage of ownership in associates | 0.00% | 0.00% | 0.00% | |||||||
Imedtac Co., Ltd. (“IME”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 45,000,000 | $ 0 | ||||||||
Percentage of ownership in associates | 7.00% | 0.00% | 7.00% | |||||||
UUPON Inc. ("UUPON") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 0 | $ 0 | ||||||||
Percentage of ownership in associates | 0.00% | 0.00% | 0.00% | |||||||
AgriTalk Technology Inc. (“ATT”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 18,000,000 | $ 0 | ||||||||
Percentage of ownership in associates | 17.00% | 0.00% | 17.00% | |||||||
Next Commercial Bank Co., Ltd. (“NCB”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Percentage of ownership in associates | 42.00% | 42.00% | 42.00% | |||||||
KingwayTek Technology Co., Ltd. ("KWT") [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Percentage of ownership in associates | 23.00% | 22.72% | 23.00% | |||||||
Fair values based on the closing market prices | $ 910,000,000 | $ 676,000,000 | ||||||||
WiAdvance Technology Corporation (“WATC”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Investments in associates | $ 274,000,000 | |||||||||
Percentage of ownership in associates | 20.00% | 0.00% | 20.00% | 20.33% | ||||||
CHT Infinity Singapore Pte. Ltd. (“CISG”) [Member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
Percentage of ownership in associates | 40.00% | 0.00% | 40.00% | |||||||
Associates [member] | ||||||||||
Disclosure of associates [Line Items] | ||||||||||
The Company’s share of profits | $ 607,000,000 | $ 540,000,000 | $ 575,000,000 | |||||||
The Company’s share of other comprehensive loss | (6,000,000) | (8,000,000) | (3,000,000) | |||||||
The Company’s share of total comprehensive income | $ 601,000,000 | $ 532,000,000 | $ 572,000,000 |
Investments Accounted for Usi_4
Investments Accounted for Using Equity Method - Summary of Financial Information of Investments in Associates (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||||||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | Nov. 30, 2019 | Feb. 28, 2019 | Dec. 31, 2018TWD ($) | |
Condensed Financial Statements Captions [Line Items] | ||||||||
Assets | $ 512,875 | $ 506,180 | $ 18,489 | |||||
Liabilities | (123,745) | (118,907) | (4,461) | |||||
Total equity | 389,130 | 387,273 | $ 384,272 | 14,028 | $ 384,458 | |||
Investments accounted for using equity method | 7,137 | 6,695 | $ 257 | |||||
Revenues | 210,478 | $ 7,588 | 207,609 | 207,520 | ||||
Net loss for the period | 37,047 | 1,336 | 34,704 | 33,921 | ||||
Other comprehensive income (loss) | (966) | (35) | 1,290 | 1,328 | ||||
TOTAL COMPREHENSIVE INCOME | 36,081 | $ 1,301 | 35,994 | 35,249 | ||||
Next Commercial Bank Co., Ltd. (“NCB”) [Member] | ||||||||
Condensed Financial Statements Captions [Line Items] | ||||||||
Assets | 9,197 | 9,907 | ||||||
Liabilities | (525) | (789) | ||||||
Total equity | $ 8,672 | $ 9,118 | ||||||
Percentage of ownership in associates | 41.90% | 41.90% | 41.90% | 41.90% | 41.90% | |||
Equity attributable to the Company | $ 3,634 | $ 3,820 | ||||||
Unrealized gain or loss from downstream transactions | (42) | (43) | ||||||
Investments accounted for using equity method | 3,592 | 3,777 | ||||||
Net loss for the period | (446) | (605) | (276) | |||||
TOTAL COMPREHENSIVE INCOME | $ (446) | $ (605) | $ (276) |
Investments Accounted For Usi_5
Investments Accounted For Using Equity Method - Additional Information (Detail) | Jul. 01, 2020TWD ($) | Sep. 30, 2020 | Apr. 30, 2019TWD ($) | Dec. 31, 2021TWD ($)NumberofSeat | Dec. 31, 2020TWD ($) | Aug. 31, 2021NumberofSeat | Jul. 31, 2021NumberofSeat | Jun. 30, 2021TWD ($) | Mar. 31, 2021TWD ($) | Jun. 30, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019TWD ($) | Feb. 28, 2019 |
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Investments in associates | $ 7,127,000,000 | $ 6,685,000,000 | ||||||||||||
Investment in joint venture | $ 10,000,000 | $ 10,000,000 | ||||||||||||
Next Commercial Bank Co., Ltd. (“NCB”) [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 41.90% | 41.90% | 41.90% | 41.90% | ||||||||||
Investments in associates | $ 3,592,000,000 | $ 3,777,000,000 | $ 4,190,000,000 | |||||||||||
International Integrated Systems, Inc. ("IISI") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 0.00% | 0.00% | 31.16% | 31.47% | ||||||||||
Investments in associates | $ 0 | $ 0 | ||||||||||||
International Integrated Systems, Inc. ("IISI") [Member] | Subsequent Events [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Investment percentage of ownership interest | 20.58% | |||||||||||||
Gain on disposal of investment | $ 1,000,000 | |||||||||||||
KingwayTek Technology Co., Ltd. ("KWT") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 23.00% | 22.72% | ||||||||||||
Gain on disposal of investment | $ 151,000,000 | |||||||||||||
UUPON Inc. ("UUPON") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 0.00% | 0.00% | ||||||||||||
Investments in associates | $ 0 | $ 0 | ||||||||||||
Gain on disposal of investment | $ 15,000,000 | |||||||||||||
Percentage of ownership in associates | 5.36% | |||||||||||||
Reduction percentage of capital to offset accumulated deficit | 95.44% | |||||||||||||
WiAdvance Technology Corporation (“WATC”) [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 20.00% | 0.00% | 20.33% | |||||||||||
Investments in associates | $ 274,000,000 | |||||||||||||
CHT Infinity Singapore Pte. Ltd. (“CISG”) [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 40.00% | |||||||||||||
Investments in associates | $ 55,000,000 | $ 0 | $ 56,000,000 | |||||||||||
Alliance Digital Tech Co., Ltd. ("ADT") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 0.00% | 14.00% | ||||||||||||
Investments in associates | $ 0 | $ 3,000,000 | ||||||||||||
Gain on disposal of investment | 4,000,000 | |||||||||||||
Percentage of ownership in associates | 14.00% | |||||||||||||
Liquidation distribution | 9,000,000 | |||||||||||||
Chunghwa SEA Holdings (“CHT SEA”) [Member] | Joint ventures [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Investment in joint venture | $ 10,000,000 | $ 10,000,000 | ||||||||||||
Percentage of ownership in joint venture | 51.00% | 51.00% | ||||||||||||
Chunghwa PChome Fund I Co., Ltd. ("CPFI") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 50.00% | |||||||||||||
No of seats allotted | NumberofSeat | 2 | |||||||||||||
Number of seats available for board of directors | NumberofSeat | 5 | |||||||||||||
Cornerstone Ventures Co., Ltd. ("CVC") [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 49.00% | |||||||||||||
No of seats allotted | NumberofSeat | 2 | |||||||||||||
Number of seats available for board of directors | NumberofSeat | 5 | |||||||||||||
AgriTalk Technology Inc. (“ATT”) [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 17.19% | |||||||||||||
No of seats allotted | NumberofSeat | 1 | |||||||||||||
Number of seats available for board of directors | NumberofSeat | 3 | |||||||||||||
Imedtac Co., Ltd. (“IME”) [Member] | ||||||||||||||
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items] | ||||||||||||||
Percentage of ownership in associates | 6.74% | 7.54% | ||||||||||||
No of seats allotted | NumberofSeat | 1 | |||||||||||||
Number of seats available for board of directors | NumberofSeat | 5 |
Investments Accounted for Usi_6
Investments Accounted for Using Equity Method - Investments in Joint Ventures (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Joint Ventures [Line Items] | ||||
Investment in joint venture | $ 10 | $ 10 | ||
The Company’s share of profits | 421 | $ 15 | 244 | $ 459 |
Joint ventures [Member] | Chunghwa SEA Holdings (“CHT SEA”) [Member] | ||||
Disclosure Of Joint Ventures [Line Items] | ||||
Investment in joint venture | $ 10 | $ 10 | ||
Percentage of ownership in joint venture | 51.00% | 51.00% | 51.00% |
Property, Plant and Equipment -
Property, Plant and Equipment - Summary of Assets Used by the Company (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) |
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Assets used by the Company | $ 289,100 | $ 10,423 | $ 281,416 | |
Assets Subject to Operating Leases [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Assets used by the Company | 7,251 | 7,593 | $ 7,324 | |
Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Assets used by the Company | $ 281,849 | $ 273,823 | $ 276,370 |
Property, Plant and Equipment_2
Property, Plant and Equipment - Summary of Property, Plant and Equipment - Asset Used by The Company (Detail) $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | $ 281,416,000,000 | |||
Depreciation expenses | (27,805,000,000) | $ (26,989,000,000) | $ (26,930,000,000) | |
Additions | 35,613,000,000 | 25,195,000,000 | 23,164,000,000 | |
Disposal | (30,000,000) | (307,000,000) | (86,000,000) | |
Impairment losses | 0 | $ 0 | 0 | 93,000,000 |
Ending balance | 289,100,000,000 | $ 10,423 | 281,416,000,000 | |
Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 273,823,000,000 | 276,370,000,000 | ||
Impairment losses | 0 | 0 | ||
Ending balance | 281,849,000,000 | 273,823,000,000 | 276,370,000,000 | |
As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 281,670,000,000 | |||
Ending balance | 281,670,000,000 | |||
Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 920,415,000,000 | 918,513,000,000 | 929,805,000,000 | |
Additions | 35,613,000,000 | 25,195,000,000 | 23,160,000,000 | |
Disposal | (30,234,000,000) | (22,796,000,000) | (32,837,000,000) | |
Effect of foreign exchange differences | (72,000,000) | (98,000,000) | (44,000,000) | |
Acquired by business combinations (Note 14) | 142,000,000 | |||
Others | 216,000,000 | (541,000,000) | (1,571,000,000) | |
Ending balance | 925,938,000,000 | 920,415,000,000 | 918,513,000,000 | |
Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (646,592,000,000) | (642,143,000,000) | (648,135,000,000) | |
Depreciation expenses | (27,728,000,000) | (26,907,000,000) | (26,856,000,000) | |
Disposal | 30,204,000,000 | 22,489,000,000 | 32,751,000,000 | |
Impairment losses | (93,000,000) | |||
Effect of foreign exchange differences | 32,000,000 | 41,000,000 | 17,000,000 | |
Acquired by business combinations (Note 14) | (94,000,000) | |||
Others | (5,000,000) | 22,000,000 | 173,000,000 | |
Ending balance | (644,089,000,000) | (646,592,000,000) | (642,143,000,000) | |
Land [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 101,991,000,000 | 99,103,000,000 | ||
Ending balance | 102,645,000,000 | 101,991,000,000 | 99,103,000,000 | |
Land [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 100,355,000,000 | |||
Ending balance | 100,355,000,000 | |||
Land [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 101,991,000,000 | 99,103,000,000 | 100,355,000,000 | |
Additions | 0 | 67,000,000 | 0 | |
Disposal | 0 | (270,000,000) | (38,000,000) | |
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 654,000,000 | 3,091,000,000 | (1,214,000,000) | |
Ending balance | 102,645,000,000 | 101,991,000,000 | 99,103,000,000 | |
Land [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | 0 | 0 | |
Depreciation expenses | 0 | 0 | 0 | |
Disposal | 0 | 0 | 0 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 0 | 0 | 0 | |
Ending balance | 0 | 0 | 0 | |
Land improvements [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 231,000,000 | 243,000,000 | ||
Ending balance | 220,000,000 | 231,000,000 | 243,000,000 | |
Land improvements [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 263,000,000 | |||
Ending balance | 263,000,000 | |||
Land improvements [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 1,630,000,000 | 1,618,000,000 | 1,600,000,000 | |
Additions | 0 | 0 | 0 | |
Disposal | (1,000,000) | (19,000,000) | (7,000,000) | |
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 33,000,000 | 31,000,000 | 25,000,000 | |
Ending balance | 1,662,000,000 | 1,630,000,000 | 1,618,000,000 | |
Land improvements [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (1,399,000,000) | (1,375,000,000) | (1,337,000,000) | |
Depreciation expenses | (43,000,000) | (43,000,000) | (43,000,000) | |
Disposal | 1,000,000 | 19,000,000 | 6,000,000 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | (1,000,000) | 0 | (1,000,000) | |
Ending balance | (1,442,000,000) | (1,399,000,000) | (1,375,000,000) | |
Buildings [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 41,642,000,000 | 43,024,000,000 | ||
Ending balance | 40,780,000,000 | 41,642,000,000 | 43,024,000,000 | |
Buildings [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 42,466,000,000 | |||
Ending balance | 42,466,000,000 | |||
Buildings [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 70,889,000,000 | 71,001,000,000 | 69,328,000,000 | |
Additions | 37,000,000 | 18,000,000 | 1,221,000,000 | |
Disposal | (29,000,000) | (49,000,000) | (3,000,000) | |
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 461,000,000 | (81,000,000) | 455,000,000 | |
Ending balance | 71,358,000,000 | 70,889,000,000 | 71,001,000,000 | |
Buildings [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (29,247,000,000) | (27,977,000,000) | (26,862,000,000) | |
Depreciation expenses | (1,401,000,000) | (1,366,000,000) | (1,301,000,000) | |
Disposal | 29,000,000 | 49,000,000 | 3,000,000 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 41,000,000 | 47,000,000 | 183,000,000 | |
Ending balance | (30,578,000,000) | (29,247,000,000) | (27,977,000,000) | |
Computer equipment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 1,767,000,000 | 1,937,000,000 | ||
Ending balance | 1,585,000,000 | 1,767,000,000 | 1,937,000,000 | |
Computer equipment [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 2,115,000,000 | |||
Ending balance | 2,115,000,000 | |||
Computer equipment [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 12,406,000,000 | 13,005,000,000 | 14,258,000,000 | |
Additions | 72,000,000 | 55,000,000 | 57,000,000 | |
Disposal | (1,734,000,000) | (1,245,000,000) | (1,916,000,000) | |
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 70,000,000 | |||
Others | 473,000,000 | 521,000,000 | 606,000,000 | |
Ending balance | 11,217,000,000 | 12,406,000,000 | 13,005,000,000 | |
Computer equipment [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (10,639,000,000) | (11,068,000,000) | (12,143,000,000) | |
Depreciation expenses | (716,000,000) | (770,000,000) | (827,000,000) | |
Disposal | 1,724,000,000 | 1,243,000,000 | 1,909,000,000 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | (40,000,000) | |||
Others | (1,000,000) | (4,000,000) | (7,000,000) | |
Ending balance | (9,632,000,000) | (10,639,000,000) | (11,068,000,000) | |
Telecommunications equipment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 117,113,000,000 | 115,694,000,000 | ||
Ending balance | 123,001,000,000 | 117,113,000,000 | 115,694,000,000 | |
Telecommunications equipment [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 115,013,000,000 | |||
Ending balance | 115,013,000,000 | |||
Telecommunications equipment [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 710,776,000,000 | 706,032,000,000 | 711,863,000,000 | |
Additions | 84,000,000 | 118,000,000 | 120,000,000 | |
Disposal | (27,916,000,000) | (20,619,000,000) | (30,417,000,000) | |
Effect of foreign exchange differences | (64,000,000) | (91,000,000) | (37,000,000) | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 30,654,000,000 | 25,336,000,000 | 24,503,000,000 | |
Ending balance | 713,534,000,000 | 710,776,000,000 | 706,032,000,000 | |
Telecommunications equipment [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (593,663,000,000) | (590,338,000,000) | (596,850,000,000) | |
Depreciation expenses | (24,802,000,000) | (23,994,000,000) | (23,906,000,000) | |
Disposal | 27,900,000,000 | 20,600,000,000 | 30,380,000,000 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 31,000,000 | 41,000,000 | 16,000,000 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 1,000,000 | 28,000,000 | 22,000,000 | |
Ending balance | (590,533,000,000) | (593,663,000,000) | (590,338,000,000) | |
Transportation equipment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 176,000,000 | 218,000,000 | ||
Ending balance | 228,000,000 | 176,000,000 | 218,000,000 | |
Transportation equipment [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 231,000,000 | |||
Ending balance | 231,000,000 | |||
Transportation equipment [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 3,894,000,000 | 3,912,000,000 | 3,882,000,000 | |
Additions | 0 | 1,000,000 | 1,000,000 | |
Disposal | (84,000,000) | (45,000,000) | (51,000,000) | |
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 117,000,000 | 26,000,000 | 80,000,000 | |
Ending balance | 3,927,000,000 | 3,894,000,000 | 3,912,000,000 | |
Transportation equipment [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (3,718,000,000) | (3,694,000,000) | (3,651,000,000) | |
Depreciation expenses | (65,000,000) | (68,000,000) | (91,000,000) | |
Disposal | 84,000,000 | 45,000,000 | 51,000,000 | |
Impairment losses | 0 | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 0 | (1,000,000) | (3,000,000) | |
Ending balance | (3,699,000,000) | (3,718,000,000) | (3,694,000,000) | |
Miscellaneous equipment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 2,374,000,000 | 2,428,000,000 | ||
Ending balance | 2,604,000,000 | 2,374,000,000 | 2,428,000,000 | |
Miscellaneous equipment [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 2,582,000,000 | |||
Ending balance | 2,582,000,000 | |||
Miscellaneous equipment [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 10,300,000,000 | 10,090,000,000 | 9,874,000,000 | |
Additions | 198,000,000 | 150,000,000 | 149,000,000 | |
Disposal | (470,000,000) | (520,000,000) | (405,000,000) | |
Effect of foreign exchange differences | (2,000,000) | 0 | (1,000,000) | |
Acquired by business combinations (Note 14) | 72,000,000 | |||
Others | 783,000,000 | 508,000,000 | 473,000,000 | |
Ending balance | 10,809,000,000 | 10,300,000,000 | 10,090,000,000 | |
Miscellaneous equipment [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (7,926,000,000) | (7,662,000,000) | (7,292,000,000) | |
Depreciation expenses | (701,000,000) | (666,000,000) | (688,000,000) | |
Disposal | 466,000,000 | 504,000,000 | 402,000,000 | |
Impairment losses | (64,000,000) | |||
Effect of foreign exchange differences | 1,000,000 | 0 | 1,000,000 | |
Acquired by business combinations (Note 14) | (54,000,000) | |||
Others | (45,000,000) | (48,000,000) | (21,000,000) | |
Ending balance | (8,205,000,000) | (7,926,000,000) | (7,662,000,000) | |
Construction in Progress and Equipment to be Accepted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 8,529,000,000 | 13,723,000,000 | ||
Ending balance | 10,786,000,000 | 8,529,000,000 | 13,723,000,000 | |
Construction in Progress and Equipment to be Accepted [Member] | As Adjusted [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 18,645,000,000 | |||
Ending balance | 18,645,000,000 | |||
Construction in Progress and Equipment to be Accepted [Member] | Gross carrying amount [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 8,529,000,000 | 13,752,000,000 | 18,645,000,000 | |
Additions | 35,222,000,000 | 24,786,000,000 | 21,612,000,000 | |
Disposal | 0 | (29,000,000) | 0 | |
Effect of foreign exchange differences | (6,000,000) | (7,000,000) | (6,000,000) | |
Acquired by business combinations (Note 14) | 0 | |||
Others | (32,959,000,000) | (29,973,000,000) | (26,499,000,000) | |
Ending balance | 10,786,000,000 | 8,529,000,000 | 13,752,000,000 | |
Construction in Progress and Equipment to be Accepted [Member] | Accumulated depreciation, amortization and impairment [Member] | Assets Used by the Company [Member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | (29,000,000) | 0 | |
Depreciation expenses | 0 | 0 | 0 | |
Disposal | 0 | 29,000,000 | 0 | |
Impairment losses | (29,000,000) | |||
Effect of foreign exchange differences | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | 0 | |||
Others | 0 | 0 | 0 | |
Ending balance | $ 0 | $ 0 | $ (29,000,000) |
Property, Plant and Equipment_3
Property, Plant and Equipment - Additional Information (Detail) $ in Millions | 1 Months Ended | 12 Months Ended | |||
May 31, 2020TWD ($) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Impairment loss on property, plant and equipment | $ 0 | $ 0 | $ 0 | $ 93,000,000 | |
Land [Member] | Property, plant and equipment subject to operating leases [member] | Bottom of Range [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Lease period | 1 year | 1 year | |||
Land [Member] | Property, plant and equipment subject to operating leases [member] | Top of Range [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Lease period | 20 years | 20 years | |||
Buildings [Member] | Property, plant and equipment subject to operating leases [member] | Bottom of Range [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Lease period | 1 year | 1 year | |||
Buildings [Member] | Property, plant and equipment subject to operating leases [member] | Top of Range [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Lease period | 20 years | 20 years | |||
Assets Used by the Company [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Impairment loss on property, plant and equipment | $ 0 | 0 | |||
Gain (loss) on disposals, property, plant and equipment | 1,268,000,000 | ||||
Assets Used by the Company [Member] | Land [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Carrying amount of trade-out of land | 37,000,000 | ||||
Assets Used by the Company [Member] | Buildings [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Fair value of property, plant and equipment materially different from carrying amount | $ 1,305,000,000 | ||||
Chunghwa Precision Test Tech. Co., Ltd. (CHPT) [Member] | Assets Used by the Company [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Recoverable amount of asset | 0 | ||||
Impairment loss on property, plant and equipment | 89,000,000 | ||||
Chunghwa System Integration Co., Ltd. (CHSI) [Member] | Assets Used by the Company [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Recoverable amount of asset | 0 | ||||
Impairment loss on property, plant and equipment | $ 4,000,000 | ||||
MOTC [Member] | Assets Used by the Company [Member] | |||||
Disclosure Of Property Plant And Equipment [Line Items] | |||||
Difference between assessed value and construction cost of land | $ 1,057,000,000 |
Property, Plant and Equipment_4
Property, Plant and Equipment - Estimated Service Lives of Property, Plant and Equipment - Asset Used by The Company (Detail) - Assets Used by the Company [Member] | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Land improvements [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P10Y | P10Y |
Land improvements [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P30Y | P30Y |
Main buildings [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P20Y | P20Y |
Main buildings [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P60Y | P60Y |
Other building facilities [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P3Y | P3Y |
Other building facilities [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P15Y | P15Y |
Computer equipment [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P1Y | P1Y |
Computer equipment [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P8Y | P8Y |
Telecommunication circuits [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P2Y | P2Y |
Telecommunication circuits [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P30Y | P30Y |
Telecommunication machinery and antennas equipment [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P2Y | P2Y |
Telecommunication machinery and antennas equipment [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P30Y | P30Y |
Transportation equipment [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P3Y | P3Y |
Transportation equipment [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P10Y | P10Y |
Leasehold improvements [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P1Y | P1Y |
Leasehold improvements [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P9Y | P9Y |
Mechanical and air conditioner equipment [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P3Y | P3Y |
Mechanical and air conditioner equipment [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P16Y | P16Y |
Others [Member] | Bottom of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P1Y | P1Y |
Others [Member] | Top of Range [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Estimated service lives | P15Y | P15Y |
Property, Plant and Equipment_5
Property, Plant and Equipment - Summary of Property, Plant and Equipment - Assets Subject to Operating Leases (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | $ 281,416 | |||
Depreciation expenses | (27,805) | $ (26,989) | $ (26,930) | |
Additions | 35,613 | 25,195 | 23,164 | |
Impairment losses | 0 | $ 0 | 0 | 93 |
Ending balance | 289,100 | $ 10,423 | 281,416 | |
Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 7,593 | 7,324 | ||
Ending balance | 7,251 | 7,593 | 7,324 | |
As Adjusted [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 5,935 | |||
Gross carrying amount [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 9,209 | 8,821 | 7,201 | |
Additions | 4 | |||
Transferred from (to) assets used by the Company | 1,616 | |||
Others | (266) | 388 | ||
Ending balance | 8,943 | 9,209 | 8,821 | |
Accumulated depreciation, amortization and impairment [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (1,616) | (1,497) | (1,266) | |
Depreciation expenses | (77) | (82) | (74) | |
Transferred from (to) assets used by the Company | (157) | |||
Others | 1 | (37) | ||
Ending balance | (1,692) | (1,616) | (1,497) | |
Land [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 4,973 | 4,979 | ||
Ending balance | 4,809 | 4,973 | 4,979 | |
Land [Member] | As Adjusted [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 3,617 | |||
Land [Member] | Gross carrying amount [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 4,973 | 4,979 | 3,617 | |
Additions | 0 | |||
Transferred from (to) assets used by the Company | 1,362 | |||
Others | (164) | (6) | ||
Ending balance | 4,809 | 4,973 | 4,979 | |
Land [Member] | Accumulated depreciation, amortization and impairment [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | 0 | 0 | |
Depreciation expenses | 0 | 0 | 0 | |
Transferred from (to) assets used by the Company | 0 | |||
Others | 0 | 0 | ||
Ending balance | 0 | 0 | 0 | |
Land improvements [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | 0 | ||
Ending balance | 0 | 0 | 0 | |
Land improvements [Member] | As Adjusted [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | |||
Land improvements [Member] | Gross carrying amount [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | 0 | 1 | |
Additions | 0 | |||
Transferred from (to) assets used by the Company | (1) | |||
Others | 0 | 0 | ||
Ending balance | 0 | 0 | 0 | |
Land improvements [Member] | Accumulated depreciation, amortization and impairment [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 0 | 0 | (1) | |
Depreciation expenses | 0 | 0 | 0 | |
Transferred from (to) assets used by the Company | 1 | |||
Others | 0 | 0 | ||
Ending balance | 0 | 0 | 0 | |
Buildings [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 2,620 | 2,345 | ||
Ending balance | 2,442 | 2,620 | 2,345 | |
Buildings [Member] | As Adjusted [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 2,318 | |||
Buildings [Member] | Gross carrying amount [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | 4,236 | 3,842 | 3,583 | |
Additions | 4 | |||
Transferred from (to) assets used by the Company | 255 | |||
Others | (102) | 394 | ||
Ending balance | 4,134 | 4,236 | 3,842 | |
Buildings [Member] | Accumulated depreciation, amortization and impairment [Member] | Property, plant and equipment subject to operating leases [member] | ||||
Disclosure Of Property Plant And Equipment [Line Items] | ||||
Beginning balance | (1,616) | (1,497) | (1,265) | |
Depreciation expenses | (77) | (82) | (74) | |
Transferred from (to) assets used by the Company | (158) | |||
Others | 1 | (37) | ||
Ending balance | $ (1,692) | $ (1,616) | $ (1,497) |
Property, Plant and Equipment_6
Property, Plant and Equipment - Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment - Assets Subject to Operating Leases (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | $ 423 | $ 434 |
Year 1 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 107 | 115 |
Year 2 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 82 | 95 |
Year 3 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 62 | 75 |
Year 4 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 55 | 53 |
Year 5 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 39 | 38 |
Onwards [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 78 | 58 |
Property, plant and equipment subject to operating leases [member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 2,353 | 2,335 |
Property, plant and equipment subject to operating leases [member] | Year 1 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 371 | 347 |
Property, plant and equipment subject to operating leases [member] | Year 2 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 301 | 288 |
Property, plant and equipment subject to operating leases [member] | Year 3 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 210 | 231 |
Property, plant and equipment subject to operating leases [member] | Year 4 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 159 | 164 |
Property, plant and equipment subject to operating leases [member] | Year 5 [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | 135 | 125 |
Property, plant and equipment subject to operating leases [member] | Onwards [Member] | ||
Disclosure Of Property Plant And Equipment [Line Items] | ||
Future aggregate lease collection under operating lease for freehold plant, property and equipment | $ 1,177 | $ 1,180 |
Property, Plant and Equipment_7
Property, Plant and Equipment - Estimated Service Lives of Property, Plant and Equipment - Assets Subject to Operating Leases (Detail) - Property, plant and equipment subject to operating leases [member] | 12 Months Ended |
Dec. 31, 2021 | |
Land improvements [Member] | Bottom of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 10 years |
Land improvements [Member] | Top of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 30 years |
Main buildings [Member] | Bottom of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 35 years |
Main buildings [Member] | Top of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 60 years |
Other building facilities [Member] | Bottom of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 3 years |
Other building facilities [Member] | Top of Range [Member] | |
Disclosure Of Property Plant And Equipment [Line Items] | |
Estimated useful lives | 15 years |
Lease Arrangements - Summary of
Lease Arrangements - Summary of Right-of-use Assets (Details) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Right-of-use assets | $ 11,051 | $ 11,009 | $ 398 | |
Additions to right-of-use assets | 4,669 | 3,796 | $ 3,803 | |
Depreciation charge for right-of-use assets | ||||
Depreciation, right-of-use assets | 3,985 | 3,931 | 3,968 | |
Handsets Base Stations [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Right-of-use assets | 6,988 | 7,096 | ||
Depreciation charge for right-of-use assets | ||||
Depreciation, right-of-use assets | 2,789 | 2,729 | 2,728 | |
Others [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Right-of-use assets | 1,538 | 1,708 | ||
Depreciation charge for right-of-use assets | ||||
Depreciation, right-of-use assets | 786 | 786 | 821 | |
Equipment [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Right-of-use assets | 2,525 | 2,205 | ||
Depreciation charge for right-of-use assets | ||||
Depreciation, right-of-use assets | $ 410 | $ 416 | $ 419 |
Lease Arrangements - Additional
Lease Arrangements - Additional Information (Details) $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Impairment loss on right-of-use assets | $ 420,000,000 | $ 15 | $ 0 | $ 0 |
Sublease | $ 0 | $ 0 | $ 0 | |
Taiwan [Member] | Bottom of Range [Member] | Handsets Base Stations [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Lease Term | 1 year | 1 year | ||
Taiwan [Member] | Bottom of Range [Member] | Offices, Server rooms and Stores [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Lease Term | 1 year | 1 year | ||
Taiwan [Member] | Top of Range [Member] | Handsets Base Stations [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Lease Term | 20 years | 20 years | ||
Taiwan [Member] | Top of Range [Member] | Offices, Server rooms and Stores [Member] | ||||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||||
Lease Term | 30 years | 30 years |
Lease Arrangements - Summary _2
Lease Arrangements - Summary of Lease Liabilities (Details) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure Of Quantitative Information About Leases For Lessee [Abstract] | |||
Lease liabilities - current | $ 3,211 | $ 116 | $ 3,382 |
Lease liabilities - noncurrent | 7,062 | $ 255 | 6,215 |
Lease liabilities | $ 10,273 | $ 9,597 |
Lease Arrangements - Summary _3
Lease Arrangements - Summary of Range of Discount Rate for Lease Liabilities (Details) - Discount Rate [Member] - Lease Liabilities [Member] | Dec. 31, 2021 | Dec. 31, 2020 |
Top of Range [Member] | Handsets Base Stations [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 0.37 | 0.46 |
Top of Range [Member] | Others [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 0.37 | 0.46 |
Top of Range [Member] | Equipment [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 0.37 | 0.46 |
Bottom of Range [Member] | Handsets Base Stations [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 1.18 | 1.18 |
Bottom of Range [Member] | Others [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 9 | 9 |
Bottom of Range [Member] | Equipment [Member] | ||
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] | ||
Range of discount rate | 2.99 | 2.99 |
Lease Arrangements - Summary _4
Lease Arrangements - Summary of Total Cash Outflow for Leases (Details) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Quantitative Information About Leases For Lessee [Abstract] | |||
Expenses relating to low-value asset leases | $ 8 | $ 8 | $ 7 |
Expenses relating to variable lease payments not included in the measurement of lease liabilities | 7 | 5 | 6 |
Total cash outflow for leases | $ 3,813 | $ 3,776 | $ 3,826 |
Investment Properties - Summary
Investment Properties - Summary of Investment Properties (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure of detailed information about investment property [Line Items] | ||||
Beginning balance | $ 9,621 | |||
Depreciation expense | (42) | $ (22) | $ (25) | |
Reversal of impairment loss | 83 | $ 3 | 27 | 57 |
Ending balance | 9,663 | $ 348 | 9,621 | |
Gross carrying amount [Member] | ||||
Disclosure of detailed information about investment property [Line Items] | ||||
Beginning balance | 10,662 | 9,214 | 9,392 | |
Additions | 1 | 1,359 | 1 | |
Disposal | (37) | (6) | ||
Reclassification | 126 | (173) | ||
Ending balance | 10,663 | 10,662 | 9,214 | |
Accumulated depreciation, amortization and impairment [Member] | ||||
Disclosure of detailed information about investment property [Line Items] | ||||
Beginning balance | (1,041) | (1,045) | (1,105) | |
Depreciation expense | (42) | (22) | (25) | |
Disposal | 6 | |||
Reclassification | (1) | 22 | ||
Reversal of impairment loss | 83 | 27 | 57 | |
Ending balance | (1,000) | (1,041) | (1,045) | |
Beginning balance, net | 9,621 | 8,169 | 8,287 | |
Ending balance, net | $ 9,663 | $ 9,621 | $ 8,169 |
Investment Properties - Additio
Investment Properties - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Investment Property [Abstract] | ||||
Reversal of impairment loss | $ 83 | $ 3 | $ 27 | $ 57 |
Investment Properties - Estimat
Investment Properties - Estimated Service Lives of Investment Properties (Detail) | 12 Months Ended |
Dec. 31, 2021 | |
Land improvements [Member] | Bottom of range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 10 years |
Land improvements [Member] | Top of Range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 30 years |
Main buildings [Member] | Bottom of range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 35 years |
Main buildings [Member] | Top of Range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 60 years |
Other building facilities [Member] | Bottom of range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 4 years |
Other building facilities [Member] | Top of Range [Member] | |
Disclosure of detailed information about investment property [Line Items] | |
Estimated service lives | 10 years |
Investment Properties - Key Ass
Investment Properties - Key Assumptions and Fair Values of Investment Properties (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure of detailed information about investment property [Line Items] | |||
Investment properties | $ 9,663 | $ 348 | $ 9,621 |
Bottom of Range [Member] | |||
Disclosure of detailed information about investment property [Line Items] | |||
Overall capital interest rate | 0.91% | 0.91% | 0.93% |
Profit margin ratio | 8.00% | 8.00% | 12.00% |
Capitalization rate | 0.53% | 0.53% | 0.73% |
Top of Range [Member] | |||
Disclosure of detailed information about investment property [Line Items] | |||
Overall capital interest rate | 3.05% | 3.05% | 3.03% |
Profit margin ratio | 20.00% | 20.00% | 20.00% |
Capitalization rate | 2.11% | 2.11% | 2.20% |
At fair value [Member] | |||
Disclosure of detailed information about investment property [Line Items] | |||
Investment properties | $ 25,548 | $ 22,644 |
Investment Properties - Schedul
Investment Properties - Schedule of Future Aggregate Lease Collection Under Operating Lease for Investment Properties (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | $ 423 | $ 434 |
Year 1 [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | 107 | 115 |
Year 2 [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | 82 | 95 |
Year 3 [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | 62 | 75 |
Year 4 [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | 55 | 53 |
Year 5 [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | 39 | 38 |
Onwards [Member] | ||
Disclosure Of Maturity Analysis Of Operating Lease Payments [Line Items] | ||
Aggregate lease collection under operating lease | $ 78 | $ 58 |
Intangible Assets - Summary of
Intangible Assets - Summary of Intangible Assets (Detail) $ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended | |||
Feb. 29, 2020TWD ($) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | $ 90,285 | ||||
Additions-acquired separately | $ 48,373 | ||||
Amortization expenses | (6,569) | $ (5,424) | $ (4,253) | ||
Impairment losses | (29) | $ (1) | (9) | (9) | |
Ending balance | 83,945 | $ 3,026 | 90,285 | ||
Gross carrying amount [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 112,341 | 64,009 | 74,179 | ||
Additions-acquired separately | 256 | 48,605 | 363 | ||
Disposal | (354) | (341) | (10,535) | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 67 | ||||
Others | 2 | 1 | 2 | ||
Ending balance | 112,245 | 112,341 | 64,009 | ||
Accumulated depreciation, amortization and impairment [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | (22,056) | (16,962) | (23,235) | ||
Amortization expenses | (6,569) | (5,424) | (4,253) | ||
Disposal | 354 | 339 | 10,535 | ||
Impairment losses | (29) | (9) | (9) | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | ||||
Ending balance | (28,300) | (22,056) | (16,962) | ||
Beginning balance, net | 90,285 | 47,047 | 50,944 | ||
Ending balance, net | 83,945 | 90,285 | 47,047 | ||
Mobile Broadband Concession [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 89,019 | ||||
Ending balance | 82,820 | 89,019 | |||
Mobile Broadband Concession [Member] | Gross carrying amount [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 108,338 | 59,965 | 70,144 | ||
Additions-acquired separately | 0 | 48,373 | 0 | ||
Disposal | 0 | 0 | (10,179) | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | 0 | 0 | ||
Ending balance | 108,338 | 108,338 | 59,965 | ||
Mobile Broadband Concession [Member] | Accumulated depreciation, amortization and impairment [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | (19,319) | (14,293) | (20,632) | ||
Amortization expenses | (6,199) | (5,026) | (3,840) | ||
Disposal | 0 | 0 | 10,179 | ||
Impairment losses | 0 | 0 | 0 | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | ||||
Ending balance | (25,518) | (19,319) | (14,293) | ||
Beginning balance, net | 89,019 | 45,672 | 49,512 | ||
Ending balance, net | 82,820 | 89,019 | 45,672 | ||
Computer software [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 788 | ||||
Ending balance | 673 | 788 | |||
Computer software [Member] | Gross carrying amount [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 3,320 | 3,430 | 3,426 | ||
Additions-acquired separately | 225 | 226 | 358 | ||
Disposal | (344) | (338) | (356) | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 1 | ||||
Others | 2 | 1 | 2 | ||
Ending balance | 3,203 | 3,320 | 3,430 | ||
Computer software [Member] | Accumulated depreciation, amortization and impairment [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | (2,532) | (2,499) | (2,467) | ||
Amortization expenses | (341) | (371) | (388) | ||
Disposal | 343 | 338 | 356 | ||
Impairment losses | 0 | 0 | 0 | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | ||||
Ending balance | (2,530) | (2,532) | (2,499) | ||
Beginning balance, net | 788 | 931 | 959 | ||
Ending balance, net | 673 | 788 | 931 | ||
Goodwill [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 246 | ||||
Ending balance | 217 | 246 | |||
Goodwill [Member] | Gross carrying amount [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 291 | 236 | 236 | ||
Additions-acquired separately | 0 | 0 | 0 | ||
Disposal | 0 | 0 | 0 | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 55 | ||||
Others | 0 | 0 | 0 | ||
Ending balance | 291 | 291 | 236 | ||
Goodwill [Member] | Accumulated depreciation, amortization and impairment [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | (45) | (36) | (27) | ||
Amortization expenses | 0 | 0 | 0 | ||
Disposal | 0 | 0 | 0 | ||
Impairment losses | (29) | (9) | (9) | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | ||||
Ending balance | (74) | (45) | (36) | ||
Beginning balance, net | 246 | 200 | 209 | ||
Ending balance, net | 217 | 246 | 200 | ||
Others [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 232 | ||||
Ending balance | 235 | 232 | |||
Others [Member] | Gross carrying amount [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | 392 | 378 | 373 | ||
Additions-acquired separately | 31 | 6 | 5 | ||
Disposal | (10) | (3) | 0 | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 11 | ||||
Others | 0 | 0 | 0 | ||
Ending balance | 413 | 392 | 378 | ||
Others [Member] | Accumulated depreciation, amortization and impairment [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Beginning balance | (160) | (134) | (109) | ||
Amortization expenses | (29) | (27) | (25) | ||
Disposal | 11 | 1 | 0 | ||
Impairment losses | 0 | 0 | 0 | ||
Effect of foreign exchange differences | 0 | 0 | 0 | ||
Acquired by business combinations | 0 | ||||
Others | 0 | ||||
Ending balance | (178) | (160) | (134) | ||
Beginning balance, net | 232 | 244 | 264 | ||
Ending balance, net | $ 235 | $ 232 | $ 244 |
Intangible Assets - Additional
Intangible Assets - Additional Information (Detail) - TWD ($) $ in Millions | 1 Months Ended | 12 Months Ended | |||
Feb. 29, 2020 | Oct. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about intangible assets [Line Items] | |||||
5G spectrum bidding amount | $ 1,000 | ||||
Additions-acquired separately | $ 48,373 | ||||
Senao Networks, Inc. ("SNI") [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Discount rate | 12.10% | 12.10% | 12.30% | ||
Senao Networks, Inc. ("SNI") [Member] | Goodwill [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Impairment loss | $ 29 | $ 9 | $ 9 | ||
Senao Networks, Inc. ("SNI") [Member] | Certain licensed contract [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Impairment loss | $ 0.2 | ||||
Bottom of range [Member] | Computer software [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Estimated useful lives | 1 year | ||||
Bottom of range [Member] | Others [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Estimated useful lives | 1 year | ||||
Top of Range [Member] | Computer software [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Estimated useful lives | 10 years | ||||
Top of Range [Member] | Others [Member] | |||||
Disclosure of detailed information about intangible assets [Line Items] | |||||
Estimated useful lives | 20 years |
Other Assets - Summary of Other
Other Assets - Summary of Other Assets (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Miscellaneous Assets [Abstract] | |||
Spare parts | $ 2,836 | $ 2,156 | |
Refundable deposits | 1,971 | 2,009 | |
Other financial assets | 1,000 | 1,000 | |
Others | 2,035 | 2,450 | |
Other assets | 7,842 | 7,615 | |
Others | 143 | 193 | |
Other current assets | 2,979 | $ 108 | 2,349 |
Others | 1,892 | 2,257 | |
Other noncurrent assets | $ 4,863 | $ 176 | $ 5,266 |
Other Assets - Additional Infor
Other Assets - Additional Information (Detail $ in Millions | 12 Months Ended |
Dec. 31, 2019TWD ($) | |
Disclosure Of Other Assets [Abstract] | |
Impairment loss on other assets | $ 44 |
Hedging Financial Instruments -
Hedging Financial Instruments - Summary of Hedging Instrument (Details) - Forecast Purchases - forward Exchange Contract [Member] - Cash flow hedges [member] € in Millions, $ in Millions | 12 Months Ended | |||||
Dec. 31, 2021TWD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021EUR (€) | Dec. 31, 2020EUR (€) | Dec. 31, 2019EUR (€) | |
Disclosure Of Detailed Information About Hedging Instruments [Line Items] | ||||||
Change in Value of Hedged Item Used for Calculating Hedge Ineffectiveness | $ 10 | $ (2) | $ 1 | |||
Accumulated Gain or Loss on Hedging Instruments in Other Equity Continuing Hedges | (8) | 2 | 0 | |||
Accumulated Gain or Loss on Hedging Instruments in Other Equity Hedge Accounting No Longer Applied | $ 0 | $ 0 | $ 0 | |||
Foreign currency risk [Member] | ||||||
Disclosure Of Detailed Information About Hedging Instruments [Line Items] | ||||||
Currency | NT$/EUR | NT$/EUR | NT$/EUR | |||
Contract Amount | $ 228 | $ 201 | $ 84 | € 7 | € 6 | € 2 |
Maturity Period | 2022.03 | 2021.03 | 2020.03 | |||
Forward Rate | 32.54 | 34.45 | 33.66 | |||
Carrying Amount of Asset | $ 0 | $ 2 | $ 0 | |||
Carrying Amount of Liability | 8 | 0 | 0 | |||
Change in Fair Values of Hedging Instruments Used for Calculating Hedge Ineffectiveness | $ (10) | $ 2 | $ (1) |
Hedging Financial Instruments_2
Hedging Financial Instruments - Summary of Hedging Transaction and Reclassification Affected Comprehensive Income (Details) - Forecast Purchases - forward Exchange Contract [Member] - Cash flow hedges [member] - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Reclassification Of Financial Assets [Line Items] | |||
Hedging Gain or Loss Recognized in OCI | $ (10) | $ 2 | $ (1) |
Amount of Hedge Ineffectiveness Recognized in Profit or Loss | 0 | 0 | 0 |
Line item in which hedge ineffectiveness is included | 0 | 0 | 0 |
Amount Reclassified to P/L and the Adjusted Line Item | (43) | 21 | (2) |
Due to Hedged Future Cash Flows No Longer Expected to Occur | $ 0 | $ 0 | $ 0 |
Short Term Loans - Summary of S
Short Term Loans - Summary of Short-term Loans (Detail) - Short-term loans [Member] - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure of detailed information about borrowings [Line Items] | ||
Unsecured bank loans | $ 65 | $ 67 |
Unsecured loans [Member] | Bottom of Range [Member] | ||
Disclosure of detailed information about borrowings [Line Items] | ||
Interest rates of bank loans | 1.97% | 1.12% |
Unsecured loans [Member] | Top of Range [Member] | ||
Disclosure of detailed information about borrowings [Line Items] | ||
Interest rates of bank loans | 2.43% | 2.33% |
Short-term Bills Payable - Summ
Short-term Bills Payable - Summary of Short-term Bills Payable (Detail) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Short Term Bills Payable [Abstract] | |||
Commercial paper payable | $ 0 | $ 7,000,000,000 | |
Less: Discounts on commercial paper payable | 0 | (1,000,000) | |
Short-term bills payable | $ 0 | $ 0 | $ 6,999,000,000 |
Short-term Bills Payable - Su_2
Short-term Bills Payable - Summary of Annual Interest Rates of Commercial Paper Payable (Detail) | Dec. 31, 2020 |
Bottom of Range [Member] | |
Short Term Bills Payable [Line Items] | |
Commercial paper payable | 0.34% |
Top of Range [Member] | |
Short Term Bills Payable [Line Items] | |
Commercial paper payable | 0.36% |
Long Term Loans - Summary of Lo
Long Term Loans - Summary of Long-term Loans (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure of detailed information about borrowings [Line Items] | |||
Less: Current portion | $ 0 | $ 0 | $ (1,600) |
Non-current portion of non-current borrowings | 1,600 | $ 58 | 0 |
Long-term loans [Member] | |||
Disclosure of detailed information about borrowings [Line Items] | |||
Secured loans | 1,600 | 1,600 | |
Less: Current portion | 0 | (1,600) | |
Non-current portion of non-current borrowings | $ 1,600 | $ 0 | |
Long-term loans [Member] | Secured loans [Member] | |||
Disclosure of detailed information about borrowings [Line Items] | |||
Interest rates of loans | 0.89% | 0.89% | 0.72% |
Long Term Loans - Additional In
Long Term Loans - Additional Information (Detail) - Light Era Development Co., Ltd. (LED) [Member] - Chang Hwa Bank Secured Loan [Member] - TWD ($) $ in Millions | 1 Months Ended | 12 Months Ended | |||
Aug. 31, 2021 | Apr. 30, 2015 | Dec. 31, 2021 | Dec. 31, 2017 | Sep. 30, 2010 | |
Disclosure of detailed information about borrowings [Line Items] | |||||
Early repayment of secured loan | $ 50 | ||||
Extended Due September 2024 [Member] | |||||
Disclosure of detailed information about borrowings [Line Items] | |||||
Loan due date | September 2024 | ||||
Extended Due September 2021 [Member] | |||||
Disclosure of detailed information about borrowings [Line Items] | |||||
Loan due date | September 2021 | ||||
Due December 2014 [Member] | |||||
Disclosure of detailed information about borrowings [Line Items] | |||||
Secured loan | $ 300 | ||||
Loan due date | December 2014 | ||||
Due September 2015 [Member] | |||||
Disclosure of detailed information about borrowings [Line Items] | |||||
Secured loan | $ 1,350 | ||||
Loan due date | September 2015 |
Bonds Payable - Summary of Bond
Bonds Payable - Summary of Bonds Payable (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure Of Detailed Information About Bonds Payable [Abstract] | ||
Unsecured domestic bonds | $ 27,000 | $ 20,000 |
Less: Discounts on bonds payable | (23) | (20) |
Bonds payable | $ 26,977 | $ 19,980 |
Bonds Payable - Summary of Majo
Bonds Payable - Summary of Major Terms of Unsecured Domestic Bonds Issued (Detail) - TWD ($) $ in Millions | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Disclosure Of Detailed Information About Bonds Payable [Line Items] | ||
Total Amount | $ 27,000 | $ 20,000 |
Unsecured Domestic Bonds [Member] | Tranche A [Member] | ||
Disclosure Of Detailed Information About Bonds Payable [Line Items] | ||
Issuance Period | April 2021 to April 2026 | July 2020 to July 2025 |
Total Amount | $ 1,900 | $ 8,800 |
Interest rates of loans | 0.42% | 0.50% |
Repayment and Interest Payment | The same as above | One-time repayment upon maturity; interest payable annually |
Unsecured Domestic Bonds [Member] | Tranche B [Member] | ||
Disclosure Of Detailed Information About Bonds Payable [Line Items] | ||
Issuance Period | April 2021 to April 2028 | July 2020 to July 2027 |
Total Amount | $ 4,100 | $ 7,500 |
Interest rates of loans | 0.46% | 0.54% |
Repayment and Interest Payment | The same as above | The same as above |
Unsecured Domestic Bonds [Member] | Tranche C [Member] | ||
Disclosure Of Detailed Information About Bonds Payable [Line Items] | ||
Issuance Period | April 2021 to April 2031 | July 2020 to July 2030 |
Total Amount | $ 1,000 | $ 3,700 |
Interest rates of loans | 0.50% | 0.59% |
Repayment and Interest Payment | The same as above | The same as above |
Trade Notes and Accounts Paya_3
Trade Notes and Accounts Payable - Summary of Trade Notes and Accounts Payable (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Trade And Other Current Payables [Abstract] | |||
Trade notes and accounts payable | $ 18,063 | $ 651 | $ 15,591 |
Other Payables - Summary of Oth
Other Payables - Summary of Other Payables (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Trade And Other Current Payables [Abstract] | |||
Accrued salary and compensation | $ 10,126 | $ 9,450 | |
Payables to contractors | 3,015 | 1,779 | |
Accrued compensation to employees and remuneration to directors and supervisors | 1,997 | 1,691 | |
Amounts collected for others | 1,426 | 1,308 | |
Payables to equipment suppliers | 1,154 | 1,049 | |
Accrued maintenance costs | 1,011 | 1,040 | |
Payable on land (Note 16) | 0 | 1,057 | |
Others | 5,708 | 6,614 | |
Total | $ 24,437 | $ 881 | $ 23,988 |
Provisions - Summary of Provisi
Provisions - Summary of Provisions (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2018TWD ($) |
Provisions [Abstract] | |||||
Warranties | $ 213 | $ 182 | |||
Onerous contracts | 147 | 171 | |||
Employee benefits | 63 | 57 | |||
Others | 4 | 5 | |||
Provisions | 427 | 415 | $ 304 | $ 207 | |
Current | 285 | $ 10 | 314 | ||
Noncurrent | $ 142 | $ 5 | $ 101 |
Provisions - Movements in Provi
Provisions - Movements in Provisions (Detail) - TWD ($) $ in Millions | 12 Months Ended | |||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jul. 01, 2020 | |
Disclosure of other provisions [Line Items] | ||||
Beginning balance | $ 415 | $ 304 | $ 207 | |
Additional/(reversal of) provisions recognized | 84 | 221 | 184 | |
Used / forfeited during the year | (72) | (125) | (87) | |
Acquired by business combinations (Note 14) | $ 15 | |||
Effect of foreign exchange differences | 0 | |||
Ending balance | 427 | 415 | 304 | |
Warranties [Member] | ||||
Disclosure of other provisions [Line Items] | ||||
Beginning balance | 182 | 173 | 132 | |
Additional/(reversal of) provisions recognized | 102 | 131 | 127 | |
Used / forfeited during the year | (71) | (122) | (86) | |
Acquired by business combinations (Note 14) | 0 | |||
Effect of foreign exchange differences | 0 | |||
Ending balance | 213 | 182 | 173 | |
Onerous Contracts [Member] | ||||
Disclosure of other provisions [Line Items] | ||||
Beginning balance | 171 | 67 | 19 | |
Additional/(reversal of) provisions recognized | (24) | 92 | 48 | |
Used / forfeited during the year | 0 | (3) | 0 | |
Acquired by business combinations (Note 14) | 15 | |||
Effect of foreign exchange differences | 0 | |||
Ending balance | 147 | 171 | 67 | |
Employee benefits [Member] | ||||
Disclosure of other provisions [Line Items] | ||||
Beginning balance | 57 | 59 | 51 | |
Additional/(reversal of) provisions recognized | 7 | (2) | 9 | |
Used / forfeited during the year | (1) | 0 | (1) | |
Acquired by business combinations (Note 14) | 0 | |||
Effect of foreign exchange differences | 0 | |||
Ending balance | 63 | 57 | 59 | |
Others [Member] | ||||
Disclosure of other provisions [Line Items] | ||||
Beginning balance | 5 | 5 | 5 | |
Additional/(reversal of) provisions recognized | (1) | 0 | 0 | |
Used / forfeited during the year | 0 | 0 | 0 | |
Acquired by business combinations (Note 14) | $ 0 | |||
Effect of foreign exchange differences | 0 | |||
Ending balance | $ 4 | $ 5 | $ 5 |
Retirement Benefit Plans - Addi
Retirement Benefit Plans - Additional Information (Detail) | 12 Months Ended |
Dec. 31, 2021 | |
Disclosure of Defined Retirement Plans | |
Percentage of monthly salaries and wages contributed to employees' individual pension accounts | 6.00% |
Top of range [Member] | |
Disclosure of Defined Retirement Plans | |
Defined benefit plan contribution, percentage | 15.00% |
Retirement Benefit Plans - Amou
Retirement Benefit Plans - Amounts Included in Consolidated Balance Sheets from Obligation in Respect of Defined Benefit Plans (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2018TWD ($) |
Disclosure Of Defined Benefit Plans [Abstract] | |||||
Present value of funded defined benefit obligations | $ 35,502 | $ 39,536 | |||
Fair value of plan assets | (36,605) | (39,494) | |||
Funded status - deficit (surplus) | (1,103) | 42 | |||
Net defined benefit liabilities | 2,288 | $ 82 | 3,415 | ||
Net defined benefit assets | (3,391) | $ (122) | (3,373) | ||
Defined benefit obligation | $ (1,103) | $ 42 | $ 1,377 | $ 2,370 |
Retirement Benefit Plans - Move
Retirement Benefit Plans - Movements in Defined Benefit Obligation and Fair Value of Plan Assets (Detail) $ in Millions, $ in Millions | Jul. 01, 2020TWD ($) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) |
Disclosure Of Defined Plan [line items] | |||||
Net defined benefit liability (asset) at beginning of period | $ 42 | $ 1,377 | $ 2,370 | ||
Current service cost | 1,253 | 2,052 | 2,927 | ||
Interest expense/interest income | (5) | 1 | 10 | ||
Amounts recognized in profit or loss | 1,248 | 2,053 | 2,937 | ||
Remeasurement on the net defined benefit liability | |||||
Return on plan assets (excluding amounts included in net interest) | (501) | (1,308) | (1,338) | ||
Actuarial (gains) losses recognized from changes in demographic assumptions | (434) | 6 | |||
Actuarial (gains) losses recognized from changes in financial assumptions | 590 | 647 | |||
Actuarial (gains) losses recognized from experience adjustments | 545 | (475) | (842) | ||
Amounts recognized in other comprehensive income | (390) | $ (14) | (1,193) | (1,527) | |
Contributions from employer | (1,727) | (1,964) | (2,099) | ||
Benefits paid | 0 | 0 | 0 | ||
Benefits paid directly by the Company | (276) | (263) | (304) | ||
Acquired by business combinations (Note 14) | $ 32 | ||||
Net defined benefit liability (asset) at end of period | (1,103) | 42 | 1,377 | ||
Present value of funded defined benefit obligation [Member] | |||||
Disclosure Of Defined Plan [line items] | |||||
Net defined benefit liability (asset) at beginning of period | 39,536 | 41,197 | 41,397 | ||
Current service cost | 1,253 | 2,052 | 2,927 | ||
Interest expense/interest income | 190 | 298 | 400 | ||
Amounts recognized in profit or loss | 1,443 | 2,350 | 3,327 | ||
Remeasurement on the net defined benefit liability | |||||
Return on plan assets (excluding amounts included in net interest) | 0 | 0 | 0 | ||
Actuarial (gains) losses recognized from changes in demographic assumptions | (434) | 6 | |||
Actuarial (gains) losses recognized from changes in financial assumptions | 590 | 647 | |||
Actuarial (gains) losses recognized from experience adjustments | 545 | (475) | (842) | ||
Amounts recognized in other comprehensive income | 111 | 115 | (189) | ||
Contributions from employer | 0 | 0 | 0 | ||
Benefits paid | (5,312) | (3,919) | (3,034) | ||
Benefits paid directly by the Company | (276) | (263) | (304) | ||
Acquired by business combinations (Note 14) | 56 | ||||
Net defined benefit liability (asset) at end of period | 35,502 | 39,536 | 41,197 | ||
Fair value of plan assets [Member] | |||||
Disclosure Of Defined Plan [line items] | |||||
Net defined benefit liability (asset) at beginning of period | 39,494 | 39,820 | 39,027 | ||
Current service cost | 0 | 0 | 0 | ||
Interest expense/interest income | 195 | 297 | 390 | ||
Amounts recognized in profit or loss | 195 | 297 | 390 | ||
Remeasurement on the net defined benefit liability | |||||
Return on plan assets (excluding amounts included in net interest) | 501 | 1,308 | 1,338 | ||
Actuarial (gains) losses recognized from changes in demographic assumptions | 0 | 0 | |||
Actuarial (gains) losses recognized from changes in financial assumptions | 0 | 0 | |||
Actuarial (gains) losses recognized from experience adjustments | 0 | 0 | 0 | ||
Amounts recognized in other comprehensive income | 501 | 1,308 | 1,338 | ||
Contributions from employer | 1,727 | 1,964 | 2,099 | ||
Benefits paid | (5,312) | (3,919) | (3,034) | ||
Benefits paid directly by the Company | 0 | 0 | 0 | ||
Acquired by business combinations (Note 14) | $ 24 | ||||
Net defined benefit liability (asset) at end of period | $ 36,605 | $ 39,494 | $ 39,820 |
Retirement Benefit Plans - Pens
Retirement Benefit Plans - Pension Costs Recognized in Profit and Loss for Defined Benefit Plans (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Defined Plan [line items] | |||
Defined benefit plans pension costs recognized in profit and loss | $ 1,216 | $ 2,001 | $ 2,859 |
Operating costs [Member] | |||
Disclosure Of Defined Plan [line items] | |||
Defined benefit plans pension costs recognized in profit and loss | 725 | 1,205 | 1,726 |
Marketing expenses [Member] | |||
Disclosure Of Defined Plan [line items] | |||
Defined benefit plans pension costs recognized in profit and loss | 367 | 603 | 866 |
General and administrative expenses [Member] | |||
Disclosure Of Defined Plan [line items] | |||
Defined benefit plans pension costs recognized in profit and loss | 80 | 121 | 164 |
Research and development expenses [Member] | |||
Disclosure Of Defined Plan [line items] | |||
Defined benefit plans pension costs recognized in profit and loss | $ 44 | $ 72 | $ 103 |
Retirement Benefit Plans - Prin
Retirement Benefit Plans - Principal Assumptions Used for Actuarial Valuations (Detail) | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure Of Defined Plan [line items] | ||
Discount rates | 0.50% | 0.50% |
Bottom of range [Member] | ||
Disclosure Of Defined Plan [line items] | ||
Expected rates of salary increase | 1.00% | 1.00% |
Top of range [Member] | ||
Disclosure Of Defined Plan [line items] | ||
Expected rates of salary increase | 2.25% | 2.25% |
Retirement Benefit Plans - Effe
Retirement Benefit Plans - Effect on Present Value of Defined Benefit Obligation Due to a Reasonably Possible Change of the Significant Actuarial Assumptions (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Discount rates [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
0.5% increase | $ (1,073) | $ (1,208) |
0.5% decrease | 1,139 | 1,284 |
Expected rates of salary increases [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
0.5% increase | 1,217 | 1,372 |
0.5% decrease | $ (1,157) | $ (1,303) |
Retirement Benefit Plans - Ef_2
Retirement Benefit Plans - Effect on Present Value of Defined Benefit Obligation Due to a Reasonably Possible Change of the Significant Actuarial Assumptions (Parenthetical) (Detail) | Dec. 31, 2021 | Dec. 31, 2020 |
Discount rates [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
Percentage increase in actuarial assumptions | 0.50% | 0.50% |
Percentage decrease in actuarial assumptions | 0.50% | 0.50% |
Expected rates of salary increases [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
Percentage increase in actuarial assumptions | 0.50% | 0.50% |
Percentage decrease in actuarial assumptions | 0.50% | 0.50% |
Retirement Benefit Plans - Summ
Retirement Benefit Plans - Summary of Sensitivity Analysis (Detail) - TWD ($) $ in Millions | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
The expected contributions to the plan for the next year | $ 1,681 | $ 1,932 |
Bottom of range [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
The average duration of the defined benefit obligations | 6 years 3 months 18 days | 6 years 4 months 34 days |
Top of range [Member] | ||
Disclosure of sensitivity analysis for actuarial assumptions [Line Items] | ||
The average duration of the defined benefit obligations | 12 years | 13 years |
Retirement Benefit Plans - Matu
Retirement Benefit Plans - Maturity Analysis of Undiscounted Benefit Payments (Detail) $ in Millions | 12 Months Ended |
Dec. 31, 2021TWD ($) | |
Disclosure Of Defined Benefit Plans [Abstract] | |
2022 | $ 2,693 |
2023 | 6,330 |
2024 | 9,721 |
2025 | 10,864 |
2026 and thereafter | 36,890 |
Total | $ 66,498 |
Equity - Summary of Common Stoc
Equity - Summary of Common Stocks (Detail) | Dec. 31, 2021TWD ($)shares | Dec. 31, 2021USD ($)shares | Dec. 31, 2020TWD ($)shares |
Disclosure Of Classes Of Share Capital [Abstract] | |||
Number of authorized shares | 12,000,000,000 | 12,000,000,000 | 12,000,000,000 |
Authorized shares | $ | $ 120,000,000,000 | $ 120,000,000,000 | |
Number of issued and paid shares | 7,757,000,000 | 7,757,000,000 | 7,757,000,000 |
Issued and outstanding shares | $ 77,574,000,000 | $ 2,796,000,000 | $ 77,574,000,000 |
Equity - Additional Information
Equity - Additional Information (Detail) ADSs in Millions | 12 Months Ended |
Dec. 31, 2021ADSs$ / sharesshares | |
Disclosure Of Classes Of Share Capital [Line Items] | |
Common stock par value | $ / shares | $ 10 |
Percentage of American Depositary Shares as common stock outstanding | 2.60% |
Percentage of net income allocation toward legal reserve | 10.00% |
Bottom of range [Member] | |
Disclosure Of Classes Of Share Capital [Line Items] | |
Percentage of retained earnings distributed as dividend | 50.00% |
Dividend distributed per share threshold in the form of common stocks | $ / shares | $ 0.10 |
Percentage of legal reserve on additional paid in capital | 25.00% |
American Depositary Shares [Member] | |
Disclosure Of Classes Of Share Capital [Line Items] | |
Number of common stocks represented by 1 ADS | shares | 10 |
Number of common stock outstanding | shares | 202,000,000 |
Number of units | ADSs | 20 |
Equity - Adjustments of Additio
Equity - Adjustments of Additional Paid-in Capital (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Beginning balance | $ 387,273 | $ 384,272 | $ 384,458 | |
Unclaimed dividend | 2 | 2 | 1 | |
Share-based payment transactions of subsidiaries | 73 | 89 | 21 | |
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 1 | (2) | ||
Ending balance | 389,130 | $ 14,028 | 387,273 | 384,272 |
Share premium [Member] | ||||
Beginning balance | 126,045 | 126,045 | 126,045 | |
Share-based payment transactions of subsidiaries | 0 | 0 | 0 | |
Ending balance | 126,045 | 126,045 | 126,045 | |
Movements Of Additional Paid-in Capital For Associates And Joint Ventures Accounted For Using Equity Method | ||||
Beginning balance | 0 | 0 | 0 | |
Share-based payment transactions of subsidiaries | 0 | 0 | 0 | |
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 1 | |||
Ending balance | 1 | 0 | 0 | |
Movements of additional paid-in capital arising from changes in equities of subsidiaries [Member] | ||||
Beginning balance | 2,089 | 2,063 | 2,064 | |
Share-based payment transactions of subsidiaries | 17 | 26 | (1) | |
Ending balance | 2,106 | 2,089 | 2,063 | |
Difference between consideration received and carrying amount of the subsidiaries' net assets upon disposal [Member] | ||||
Beginning balance | 987 | 987 | 987 | |
Share-based payment transactions of subsidiaries | 0 | 0 | 0 | |
Ending balance | 987 | 987 | 987 | |
Donated capital [Member] | ||||
Beginning balance | 21 | 19 | 18 | |
Unclaimed dividend | 2 | 2 | 1 | |
Share-based payment transactions of subsidiaries | 0 | 0 | 0 | |
Ending balance | 23 | 21 | 19 | |
Stockholders' contribution due to privatization [Member] | ||||
Beginning balance | 20,648 | 20,648 | 20,648 | |
Share-based payment transactions of subsidiaries | 0 | 0 | 0 | |
Ending balance | 20,648 | 20,648 | 20,648 | |
Additional paid-in capital [Member] | ||||
Beginning balance | 149,790 | 149,762 | 149,762 | |
Unclaimed dividend | 2 | 2 | 1 | |
Share-based payment transactions of subsidiaries | 17 | 26 | (1) | |
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 1 | 0 | ||
Ending balance | $ 149,810 | $ 5,401 | $ 149,790 | $ 149,762 |
Equity - Appropriations of Earn
Equity - Appropriations of Earnings (Detail) - TWD ($) $ / shares in Units, $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Cash dividends [Member] | |||
Appropriations of earnings | $ 35,746 | $ 33,404 | $ 32,783 |
Cash dividends per share | $ 4.608 | $ 4.306 | $ 4.226 |
Special reserve [Member] | |||
Appropriations of earnings | $ 408 |
Equity - Unrealized Gain or Los
Equity - Unrealized Gain or Loss on Financial Assets at FVOCI (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Statement Of Changes In Equity [Abstract] | |||
Beginning balance | $ 1,240 | $ 735 | $ 538 |
Unrealized gain or loss for the year | |||
Equity instruments | (1,188) | 522 | 197 |
Transferred accumulated gain or loss to unappropriated earnings resulting from the disposal of equity instruments (Note 9) | (60) | (17) | 0 |
Ending balance | $ (8) | $ 1,240 | $ 735 |
Equity - Noncontrolling Interes
Equity - Noncontrolling Interests (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Beginning balance | $ 387,273 | $ 384,272 | $ 384,458 | |
Profit Allocated to Noncontrolling Interests | 1,431 | $ 52 | 1,285 | 974 |
Income tax relating to remeasurements of defined benefit pension plans | (78) | (239) | (305) | |
Cash dividends distributed by subsidiaries | (896) | (775) | (710) | |
Share-based payment transactions of subsidiaries | 73 | 89 | 21 | |
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 1 | (2) | ||
Net increase (decrease) in noncontrolling interests | 476 | (1) | ||
Ending balance | 389,130 | 14,028 | 387,273 | 384,272 |
Noncontrolling interests [Member] | ||||
Beginning balance | 11,158 | 10,115 | 9,837 | |
Profit Allocated to Noncontrolling Interests | 1,431 | 1,285 | 974 | |
Exchange differences arising from the translation of the foreign operations | 0 | (14) | 8 | |
Unrealized gain or loss on financial assets at FVOCI | 2 | (3) | (26) | |
Remeasurements of defined benefit pension plans | (5) | 17 | 15 | |
Income tax relating to remeasurements of defined benefit pension plans | 1 | (3) | (3) | |
Share of other comprehensive loss of associates and joint ventures accounted for using equity method | 0 | (1) | (1) | |
Cash dividends distributed by subsidiaries | (896) | (775) | (710) | |
Share-based payment transactions of subsidiaries | 56 | 63 | 22 | |
Change in additional paid-in capital for not proportionately participating in the capital increase of subsidiaries | 0 | 0 | 0 | |
Change in additional paid-in capital from investments in associates and joint ventures accounted for using equity method | 0 | (2) | 0 | |
Net increase (decrease) in noncontrolling interests | 0 | 476 | (1) | |
Ending balance | $ 11,747 | $ 424 | $ 11,158 | $ 10,115 |
Revenue - Summary of Revenue (D
Revenue - Summary of Revenue (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Revenue [Abstract] | ||||
Revenue from contracts with customers | $ 208,412 | $ 206,396 | $ 206,360 | |
Other revenues | ||||
Government grants income | 1,037 | 219 | 205 | |
Rental income | 864 | 843 | 818 | |
Others | 165 | 151 | 137 | |
Revenue other than from contracts with customers | 2,066 | 1,213 | 1,160 | |
Total | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 |
Revenue - Summary of Disaggrega
Revenue - Summary of Disaggregation of Revenue (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | $ 208,412 | $ 206,396 | $ 206,360 |
Domestic Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 64,144 | 68,804 | 65,066 |
Mobile Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 94,684 | 90,143 | 95,390 |
Internet Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 32,837 | 31,809 | 29,834 |
International Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 8,625 | 8,682 | 11,475 |
Other [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 8,122 | 6,958 | 4,595 |
Mobile services [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 58,048 | 56,724 | 58,703 |
Mobile services [Member] | Mobile Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 58,048 | 56,724 | 58,703 |
Sales of product [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 42,907 | 39,391 | 41,593 |
Sales of product [Member] | Domestic Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 2,173 | 2,214 | 1,957 |
Sales of product [Member] | Mobile Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 35,414 | 32,112 | 35,545 |
Sales of product [Member] | Internet Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 128 | 107 | 41 |
Sales of product [Member] | International Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 12 | 313 | 265 |
Sales of product [Member] | Other [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 5,180 | 4,645 | 3,785 |
Local telephone and domestic long distance telephone services [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 25,704 | 26,475 | 27,929 |
Local telephone and domestic long distance telephone services [Member] | Domestic Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 25,704 | 26,475 | 27,929 |
Broadband access and domestic leased line services [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 23,012 | 22,420 | 22,116 |
Broadband access and domestic leased line services [Member] | Domestic Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 23,012 | 22,420 | 22,116 |
Data communications internet services [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 22,281 | 21,447 | 21,003 |
Data communications internet services [Member] | Internet Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 22,281 | 21,447 | 21,003 |
International network and leased line services | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 4,367 | 3,884 | 7,066 |
International network and leased line services | International Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 4,367 | 3,884 | 7,066 |
Others [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 32,093 | 36,055 | 27,950 |
Others [Member] | Domestic Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 13,255 | 17,695 | 13,064 |
Others [Member] | Mobile Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 1,222 | 1,307 | 1,142 |
Others [Member] | Internet Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 10,428 | 10,255 | 8,790 |
Others [Member] | International Fixed Communications Business [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | 4,246 | 4,485 | 4,144 |
Others [Member] | Other [Member] | |||
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] | |||
Revenue from contracts with customers | $ 2,942 | $ 2,313 | $ 810 |
Revenue - Summary of Contract B
Revenue - Summary of Contract Balances (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Jan. 01, 2020TWD ($) |
Disclosure Of Contract Balance [Abstract] | ||||
Trade notes and accounts receivable, net | $ 23,947 | $ 863 | $ 22,622 | $ 26,408 |
Contract assets | ||||
Products and service bundling | 7,197 | 7,232 | 6,943 | |
Others | 983 | 612 | 116 | |
Less : Loss allowance | (18) | (18) | (17) | |
Contract assets | 8,162 | 7,826 | 7,042 | |
Current Contract Assets | 5,554 | 200 | 5,331 | 4,441 |
Noncurrent Contract Assets | 2,608 | 94 | 2,495 | 2,601 |
Contract liabilities | ||||
Telecommunications business | 13,144 | 13,602 | 12,772 | |
Project business | 5,435 | 6,687 | 10,360 | |
Products and service bundling | 4 | 16 | 39 | |
Others | 491 | 421 | 510 | |
Contract liabilities | 19,074 | 20,726 | 23,681 | |
Current Contract Liabilities | 12,234 | 441 | 13,437 | 16,840 |
Noncurrent Contract Liabilities | 6,840 | $ 247 | 7,289 | 6,841 |
Contract liabilities | $ 19,074 | $ 20,726 | $ 23,681 |
Revenue - Summary of Changes in
Revenue - Summary of Changes in Contract Assets and Contract Liabilities (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Contract assets | |||
Net increase of customer contracts | $ 6,035 | $ 5,972 | $ 6,066 |
Reclassified to trade receivables | (6,039) | (5,681) | (6,405) |
Significant changes of contract assets | (4) | 291 | (339) |
Contract liabilities | |||
Net increase of customer contracts | 0 | 7 | 22 |
Recognized as revenues | (12) | (30) | (89) |
Significant changes of contract liabilities | $ (12) | $ (23) | $ (67) |
Revenue - Summary of Revenue Re
Revenue - Summary of Revenue Recognized (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Revenue [Abstract] | |||
Telecommunications business | $ 5,952 | $ 5,492 | $ 6,186 |
Project business | 4,630 | 6,092 | 3,973 |
Others | 431 | 512 | 404 |
Contracts with customers revenue recognized | $ 11,013 | $ 12,096 | $ 10,563 |
Revenue - Summary of Incrementa
Revenue - Summary of Incremental Costs of Obtaining Contracts (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Revenue [Abstract] | |||
Incremental costs of obtaining a contract | $ 988 | $ 36 | $ 1,000 |
Revenue - Additional Informatio
Revenue - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Revenue From Contract With Customer Line Item | ||||
Amortization of incremental costs of obtaining contracts | $ 815 | $ 29 | $ 772 | $ 1,173 |
Telecommunications Business [Member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | $ 29,380 | |||
Remaining performance obligations, timing of satisfaction | The Company expects to recognize such revenue of $18,350 million, $8,603 million and $2,427 million in 2022, 2023 and 2024, respectively. | The Company expects to recognize such revenue of $18,350 million, $8,603 million and $2,427 million in 2022, 2023 and 2024, respectively. | ||
Telecommunications Business [Member] | Year 1 [Member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | $ 18,350 | |||
Telecommunications Business [Member] | Later than one year and not later than two years [member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | 8,603 | |||
Telecommunications Business [Member] | Later than two years and not later than three years [member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | 2,427 | |||
Project Business [Member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | $ 19,030 | |||
Remaining performance obligations, timing of satisfaction | The Company recognizes revenues when the project business contract is completed and accepted by customers. The Company expects to recognize such revenue of $9,033 million, $4,781 million and $5,216 million in 2022, 2023 and 2024, respectively. | The Company recognizes revenues when the project business contract is completed and accepted by customers. The Company expects to recognize such revenue of $9,033 million, $4,781 million and $5,216 million in 2022, 2023 and 2024, respectively. | ||
Project Business [Member] | Year 1 [Member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | $ 9,033 | |||
Project Business [Member] | Later than one year and not later than two years [member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | 4,781 | |||
Project Business [Member] | Later than two years and not later than three years [member] | ||||
Revenue From Contract With Customer Line Item | ||||
Transaction price allocated to performance obligations | $ 5,216 |
Net Income - Other Income and E
Net Income - Other Income and Expenses (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Analysis Of Income And Expense [Abstract] | ||||
Gain (loss) on disposal of property, plant and equipment | $ (3) | $ 0 | $ 1,428 | $ (38) |
Impairment loss on property, plant and equipment | 0 | 0 | 0 | (93) |
Impairment loss on right-of-use assets | (420) | 0 | 0 | |
Gain on disposal of investment properties, net | 0 | 0 | 151 | 0 |
Reversal of impairment loss on investment properties | 83 | 3 | 27 | 57 |
Loss on disposal of intangible assets | 0 | 0 | (2) | 0 |
Impairment loss on intangible assets | (29) | (1) | (9) | (9) |
Impairment loss on other assets | 0 | 0 | 0 | (44) |
Other income and expenses | $ (369) | $ (13) | $ 1,595 | $ (127) |
Net Income - Other Income (Deta
Net Income - Other Income (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Analysis Of Income And Expense [Abstract] | ||||
Dividend income | $ 154 | $ 6 | $ 246 | $ 296 |
Rental income | 70 | 70 | 85 | |
Others | 154 | 154 | 150 | |
Other income | $ 378 | $ 14 | $ 470 | $ 531 |
Net Income - Other Gains and Lo
Net Income - Other Gains and Losses (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Analysis Of Income And Expense [Abstract] | ||||
Valuation gain (loss) on financial assets and liabilities at fair value through profit or loss, net | $ 243 | $ 9 | $ (99) | $ (38) |
Foreign currency exchange gain or loss, net | 230 | (47) | 16 | |
Gain on disposal of investments accounted for using equity method, net | 4 | 0 | 10 | 151 |
Gain (loss) on disposal of financial instruments, net | 0 | (2) | 4 | |
Others | (16) | (21) | (49) | |
Other gains and losses | $ 461 | $ 17 | $ (159) | $ 84 |
Net Income - Interest Expenses
Net Income - Interest Expenses (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Interest Costs [Abstract] | ||||
Interest on bonds payable | $ 132 | $ 46 | $ 0 | |
Interest on lease liabilities | 69 | 80 | 85 | |
Interest paid to financial institutions | 16 | 79 | 17 | |
Others | 1 | 1 | 2 | |
Interest expenses | $ 218 | $ 8 | $ 206 | $ 104 |
Net Income - Impairment Loss (R
Net Income - Impairment Loss (Reversal of Impairment Loss) on Financial Instruments and Non-financial Assets (Detail) $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Impairment Loss And Reversal Of Impairment Loss [Abstract] | ||||
Contract assets | $ 0 | $ 1,000,000 | $ (2,000,000) | |
Trade notes and accounts receivable | 123,000,000 | 49,000,000 | (54,000,000) | |
Other receivables | 20,000,000 | (5,000,000) | (69,000,000) | |
Inventories | 207,000,000 | $ 7 | 1,161,000,000 | 475,000,000 |
Property, plant and equipment | 0 | 0 | 93,000,000 | |
Right-of-use assets | 420,000,000 | 15 | 0 | 0 |
Investment properties | (83,000,000) | (3) | (27,000,000) | (57,000,000) |
Intangible assets | 29,000,000 | 1 | 9,000,000 | 9,000,000 |
Other assets | $ 0 | $ 0 | $ 0 | $ 44,000,000 |
Net Income - Depreciation and A
Net Income - Depreciation and Amortization Expenses (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Property, plant and equipment | $ 27,805 | $ 26,989 | $ 26,930 | |
Right-of-use assets | 3,985 | 3,931 | 3,968 | |
Investment properties | 42 | 22 | 25 | |
Intangible assets | 6,569 | 5,424 | 4,253 | |
Incremental costs of obtaining contracts | 815 | $ 29 | 772 | 1,173 |
Total depreciation and amortization expenses | 39,216 | 37,138 | 36,349 | |
Depreciation expenses | 31,832 | $ 1,148 | 30,942 | 30,923 |
Amortization expenses | 7,384 | 6,196 | 5,426 | |
Operating costs [Member] | ||||
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Depreciation expenses | 30,021 | 29,056 | 28,957 | |
Amortization expenses | 7,172 | 5,971 | 5,196 | |
Operating expenses [Member] | ||||
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Depreciation expenses | 1,811 | 1,886 | 1,966 | |
Marketing expenses [Member] | ||||
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Amortization expenses | 93 | 100 | 96 | |
General and administrative expenses [Member] | ||||
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Amortization expenses | 75 | 82 | 95 | |
Research and development expenses [Member] | ||||
Disclosure Of Depreciation And Amortization [Line Items] | ||||
Amortization expenses | $ 44 | $ 43 | $ 39 |
Net Income - Employee Benefit E
Net Income - Employee Benefit Expenses (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Employee Benefit Expenses [Line Items] | ||||
Defined contribution plans | $ 784 | $ 708 | $ 654 | |
Defined benefit plans pension costs recognized in profit and loss | 1,216 | 2,001 | 2,859 | |
Post-employment benefit | 2,000 | 2,709 | 3,513 | |
Compensation cost of share-based payment transactions | 19 | $ 0 | 8 | 2 |
Other employee benefit | 42,654 | 42,246 | 42,640 | |
Employee benefit expenses | 44,673 | 44,963 | 46,155 | |
Summary by functions | ||||
Compensation distributed to the employees | 1,202 | 1,126 | ||
Remuneration paid to the directors | 36 | 35 | ||
Operating costs [Member] | ||||
Disclosure Of Employee Benefit Expenses [Line Items] | ||||
Defined benefit plans pension costs recognized in profit and loss | 725 | 1,205 | 1,726 | |
Employee benefit expenses | 22,734 | 23,005 | 23,587 | |
Operating expenses [Member] | ||||
Disclosure Of Employee Benefit Expenses [Line Items] | ||||
Employee benefit expenses | $ 21,939 | $ 21,958 | $ 22,568 |
Net Income - Additional Informa
Net Income - Additional Information (Detail) $ in Millions | 12 Months Ended |
Dec. 31, 2021TWD ($) | |
Employee benefits expense [Line Items] | |
Employees' compensation payables | $ 1,429 |
Remuneration to directors payables | $ 39 |
Bottom of Range [Member] | |
Employee benefits expense [Line Items] | |
Employees' compensation distribution rate | 1.70% |
Top of Range [Member] | |
Employee benefits expense [Line Items] | |
Employees' compensation distribution rate | 4.30% |
Directors' remuneration distribution rate | 0.17% |
Income Tax - Major Components o
Income Tax - Major Components of Income Tax Expense (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Current tax | ||||
Current tax expenses recognized for the year | $ 8,490 | $ 8,172 | $ 8,109 | |
Income tax on unappropriated earnings | 181 | 8 | (20) | |
Income tax adjustments on prior years | (150) | (22) | (91) | |
Others | 7 | 19 | 12 | |
Current tax | 8,528 | 8,177 | 8,010 | |
Deferred tax | ||||
Deferred tax expense (benefits) recognized for the year | 489 | (81) | (63) | |
Income tax adjustments on prior years | 3 | 26 | (1) | |
Deferred tax | 492 | (55) | (64) | |
Income tax expense recognized in profit or loss | $ 9,020 | $ 325 | $ 8,122 | $ 7,946 |
Income Tax - Reconciliation of
Income Tax - Reconciliation of Accounting Profit and Income Tax Expense (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates [Abstract] | ||||
Income before income tax | $ 46,067 | $ 1,661 | $ 42,826 | $ 41,867 |
Income tax expense calculated at the statutory rate | 9,213 | 8,565 | 8,373 | |
Nondeductible income and expenses in determining taxable income | 8 | 15 | 18 | |
Unrecognized loss carryforwards | (1) | 4 | 7 | |
Tax-exempt income | (30) | (367) | (148) | |
Income tax on unappropriated earnings | 181 | 8 | (20) | |
Investment credits | (217) | (131) | (203) | |
Effect of different tax rates of group entities operating in other jurisdictions | (10) | 10 | (9) | |
Income tax adjustments on prior years | (147) | 4 | (92) | |
Others | 23 | 14 | 20 | |
Income tax expense recognized in profit or loss | $ 9,020 | $ 325 | $ 8,122 | $ 7,946 |
Income Tax - Additional Informa
Income Tax - Additional Information (Detail) | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Income tax [Line Items] | |||
Applicable tax rate | 20.00% | 20.00% | 20.00% |
China [Member] | |||
Income tax [Line Items] | |||
Applicable tax rate | 25.00% | 25.00% | 25.00% |
Income Tax - Income Tax Recogni
Income Tax - Income Tax Recognized in Other Comprehensive Income (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Deferred tax | |||
Remeasurement on defined benefit pension plans | $ 78 | $ 239 | $ 305 |
Exchange differences arising from the translation of the foreign operations | 0 | 0 | 0 |
Total income tax expense recognized in other comprehensive income | $ 78 | $ 239 | $ 305 |
Income Tax - Current Tax Assets
Income Tax - Current Tax Assets and Liabilities (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Major Components Of Tax Expense Income [Abstract] | |||
Tax refund receivable (included in other current assets - other) | $ 5 | $ 1 | |
Income tax payable | $ 6,530 | $ 235 | $ 6,157 |
Income Tax - Movements of Defer
Income Tax - Movements of Deferred Income Tax Assets and Liabilities (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Income tax [Line Items] | |||
Recognized in Profit or Loss | $ (489) | $ 81 | $ 63 |
Recognized in Other Comprehensive Income | (78) | (239) | (305) |
Deferred tax asset [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 3,133 | 3,259 | 3,580 |
Acquired by business combinations (Note 14) | 6 | ||
Recognized in Profit or Loss | (270) | 107 | (16) |
Recognized in Other Comprehensive Income | (78) | (239) | (305) |
Ending balance | 2,785 | 3,133 | 3,259 |
Deferred tax asset [Member] | Defined benefit pension plans [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 1,816 | 2,034 | 2,307 |
Acquired by business combinations (Note 14) | 1 | ||
Recognized in Profit or Loss | 6 | 20 | 32 |
Recognized in Other Comprehensive Income | (78) | (239) | (305) |
Ending balance | 1,744 | 1,816 | 2,034 |
Deferred tax asset [Member] | Share of profit or loss of associates and joint ventures accounted for using equity method [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 401 | 402 | 389 |
Recognized in Profit or Loss | (1) | 13 | |
Ending balance | 401 | 401 | 402 |
Deferred tax asset [Member] | Allowance for doubtful receivables over quota [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 365 | 404 | 435 |
Recognized in Profit or Loss | (100) | (39) | (31) |
Ending balance | 265 | 365 | 404 |
Deferred tax asset [Member] | Valuation loss on inventory [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 299 | 141 | 88 |
Acquired by business combinations (Note 14) | 3 | ||
Recognized in Profit or Loss | (102) | 155 | 53 |
Ending balance | 197 | 299 | 141 |
Deferred tax asset [Member] | Deferred revenue [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 73 | 98 | 111 |
Recognized in Profit or Loss | (24) | (25) | (13) |
Ending balance | 49 | 73 | 98 |
Deferred tax asset [Member] | Others [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 90 | 105 | 178 |
Acquired by business combinations (Note 14) | 2 | ||
Recognized in Profit or Loss | (15) | (17) | (73) |
Ending balance | 75 | 90 | 105 |
Deferred tax asset [Member] | Estimated warranty liabilities [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 36 | 34 | 26 |
Recognized in Profit or Loss | 7 | 2 | 8 |
Ending balance | 43 | 36 | 34 |
Deferred tax asset [Member] | Valuation loss (gain) on financial instruments [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 33 | 13 | 5 |
Recognized in Profit or Loss | (33) | 20 | 8 |
Ending balance | 33 | 13 | |
Deferred tax asset [Member] | Temporary differences [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 3,113 | 3,231 | 3,539 |
Acquired by business combinations (Note 14) | 6 | ||
Recognized in Profit or Loss | (261) | 115 | (3) |
Recognized in Other Comprehensive Income | (78) | (239) | (305) |
Ending balance | 2,774 | 3,113 | 3,231 |
Deferred tax asset [Member] | Unused tax losses [Member] | |||
Income tax [Line Items] | |||
Beginning balance | 20 | 28 | 41 |
Recognized in Profit or Loss | (9) | (8) | (13) |
Ending balance | 11 | 20 | 28 |
Deferred Tax Liability | |||
Income tax [Line Items] | |||
Beginning balance | (1,967) | (1,912) | (1,992) |
Acquired by business combinations (Note 14) | (3) | ||
Recognized in Profit or Loss | (222) | (52) | 80 |
Ending balance | (2,189) | (1,967) | (1,912) |
Deferred Tax Liability | Defined benefit pension plans [Member] | |||
Income tax [Line Items] | |||
Beginning balance | (1,812) | (1,758) | (1,832) |
Recognized in Profit or Loss | (157) | (54) | 74 |
Ending balance | (1,969) | (1,812) | (1,758) |
Deferred Tax Liability | Others [Member] | |||
Income tax [Line Items] | |||
Beginning balance | (3) | (1) | |
Acquired by business combinations (Note 14) | (3) | ||
Recognized in Profit or Loss | (1) | 1 | |
Ending balance | (4) | (3) | |
Deferred Tax Liability | Valuation loss (gain) on financial instruments [Member] | |||
Income tax [Line Items] | |||
Recognized in Profit or Loss | (16) | ||
Ending balance | (16) | ||
Deferred Tax Liability | Land value incremental tax [Member] | |||
Income tax [Line Items] | |||
Beginning balance | (95) | (95) | (95) |
Ending balance | (95) | (95) | (95) |
Deferred Tax Liability | Intangible assets [member] | |||
Income tax [Line Items] | |||
Beginning balance | (27) | (29) | (32) |
Recognized in Profit or Loss | 3 | 2 | 3 |
Ending balance | (24) | (27) | (29) |
Deferred Tax Liability | Deferred revenue for award credits [Member] | |||
Income tax [Line Items] | |||
Beginning balance | (30) | (29) | (31) |
Recognized in Profit or Loss | (25) | (1) | 2 |
Ending balance | (55) | (30) | (29) |
Deferred Tax Liability | Unrealized foreign exchange gain, net [Member] | |||
Income tax [Line Items] | |||
Beginning balance | (1) | (1) | |
Recognized in Profit or Loss | (26) | $ 1 | |
Ending balance | $ (26) | $ (1) |
Income Tax - Items for Which No
Income Tax - Items for Which No Deferred Income Tax Assets Have Been Recognized (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | $ 29 | $ 58 |
2022 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 0 | 10 |
2023 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 0 | 8 |
2024 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 1 | 8 |
2025 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 15 | 19 |
2026 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 8 | 8 |
2027 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 3 | 3 |
2028 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 1 | 1 |
2029 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 1 | 1 |
2030 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | 0 | 0 |
2031 [Member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Loss carryforwards | $ 0 | $ 0 |
Income Tax - Information About
Income Tax - Information About Unused Loss Carryforwards (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | $ 2,785 | $ 100 | $ 3,133 |
Unused tax losses [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 41 | ||
Unused tax losses [Member] | 2022 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 1 | ||
Unused tax losses [Member] | 2023 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 1 | ||
Unused tax losses [Member] | 2024 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 1 | ||
Unused tax losses [Member] | 2025 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 18 | ||
Unused tax losses [Member] | 2026 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 10 | ||
Unused tax losses [Member] | 2027 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 3 | ||
Unused tax losses [Member] | 2028 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 1 | ||
Unused tax losses [Member] | 2029 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 2 | ||
Unused tax losses [Member] | 2030 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | 2 | ||
Unused tax losses [Member] | 2031 [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Remaining creditable amount | $ 2 |
Earnings Per Share - Net Income
Earnings Per Share - Net Income and Weighted Average Number of Common Stocks Used in Calculation of Earnings Per Share (Detail) shares in Millions, $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($)shares | Dec. 31, 2021USD ($)shares | Dec. 31, 2020TWD ($)shares | Dec. 31, 2019TWD ($)shares | |
Net income used to compute the basic earnings per share | ||||
Net income attributable to the parent | $ 35,616 | $ 1,284 | $ 33,419 | $ 32,947 |
Assumed conversion of all dilutive potential common stocks | ||||
Employee stock options and employee compensation of subsidiaries | $ | (6) | (7) | (4) | |
Net income used to compute the diluted earnings per share | $ | $ 35,610 | $ 33,412 | $ 32,943 | |
Weighted average number of common stocks used to compute the basic earnings per share | 7,757 | 7,757 | 7,757 | 7,757 |
Assumed conversion of all dilutive potential common stocks | ||||
Employee compensation | 8 | 8 | 8 | 8 |
Weighted average number of common stocks used to compute the diluted earnings per share | 7,765 | 7,765 | 7,765 | 7,765 |
Share-based Payment Arrangeme_3
Share-based Payment Arrangement - SENAO Share-based Compensation Plan (Detail) - Senao International Co., Ltd. (SENAO) [Member] | 12 Months Ended |
Dec. 31, 2021shares$ / shares | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |
Effective Date | 2012.05.28 |
Grant Date | 2013.05.07 |
Stock Options Units | shares | 10,000,000 |
Exercise Price | $ 66.20 |
Original price | $ 93 |
Share-based Payments Arrangemen
Share-based Payments Arrangement - Additional Information (Detail) $ / shares in Units, $ / shares in Units, $ in Millions | Feb. 26, 2021$ / sharesshares | Feb. 20, 2021$ / sharesshares | Nov. 13, 2020$ / sharesshares | Dec. 20, 2019$ / sharesshares | Oct. 31, 2018$ / sharesshares | Dec. 19, 2017$ / sharesshares | Oct. 22, 2015shares | Jan. 31, 2014$ / sharesshares | Aug. 31, 2013$ / sharesshares | May 07, 2013shares | Dec. 31, 2020TWD ($)$ / shares | Dec. 31, 2021TWD ($)$ / shares | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($)$ / shares | Dec. 31, 2019TWD ($)$ / shares | Sep. 30, 2021$ / shares | Jul. 31, 2020$ / shares | Jun. 30, 2019$ / shares | Dec. 31, 2018 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Compensation costs | $ 19,000,000 | $ 0 | $ 8,000,000 | $ 2,000,000 | |||||||||||||||
Senao International Co., Ltd. (SENAO) [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Number of common share each option is eligible | shares | 1 | ||||||||||||||||||
Option expire period | six years | ||||||||||||||||||
Outstanding stock options | 0 | 0 | 0 | 0 | 5,318,000 | ||||||||||||||
Compensation costs | $ | $ 0 | $ 0 | $ 0 | ||||||||||||||||
Exercise Price | $ 66.20 | ||||||||||||||||||
Exercise price | $ 0 | ||||||||||||||||||
Senao International Co., Ltd. (SENAO) [Member] | 2 years after grant date [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Vesting period | two years | ||||||||||||||||||
Vesting percentage | 50.00% | ||||||||||||||||||
Senao International Co., Ltd. (SENAO) [Member] | 3 years after grant date [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Vesting period | three years | ||||||||||||||||||
Vesting percentage | 25.00% | ||||||||||||||||||
Senao International Co., Ltd. (SENAO) [Member] | 4 years after grant date [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Vesting period | four years | ||||||||||||||||||
Vesting percentage | 25.00% | ||||||||||||||||||
CHIEF Telecom Inc. (CHIEF) [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Number of common share each option is eligible | shares | 1,000 | 1,000 | 1,000 | 1,000 | |||||||||||||||
Compensation costs | $ | $ 10,000,000 | $ 1,800,000 | $ 1,500,000 | ||||||||||||||||
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on October 22, 2015 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Option expire period | five years | five years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Outstanding stock options | 0 | 0 | 314.25 | 882.75 | |||||||||||||||
Compensation costs | $ | $ 0 | $ 0 | $ 300,000 | ||||||||||||||||
Exercise Price | $ 34.40 | ||||||||||||||||||
Exercise price | $ 0 | $ 0 | $ 34.40 | ||||||||||||||||
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on December 19, 2017 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Option expire period | five years | five years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Outstanding stock options | 427.50 | 213.25 | 427.50 | 897 | 925 | ||||||||||||||
Compensation costs | $ | $ 100,000 | $ 200,000 | $ 600,000 | ||||||||||||||||
Exercise Price | $ 140.60 | $ 132.70 | $ 128.70 | $ 132.70 | $ 128.70 | $ 132.70 | $ 135.60 | ||||||||||||
Exercise price | $ 132.70 | $ 128.70 | $ 132.70 | $ 135.60 | |||||||||||||||
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on October 31, 2018 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Option expire period | five years | five years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Outstanding stock options | 21 | 10.50 | 21 | 46 | 50 | ||||||||||||||
Compensation costs | $ | $ 200,000 | $ 300,000 | $ 600,000 | ||||||||||||||||
Exercise Price | $ 147 | $ 138.70 | $ 134.50 | $ 138.70 | 134.50 | $ 138.70 | $ 141.70 | ||||||||||||
Exercise price | $ 0 | $ 0 | $ 0 | $ 0 | |||||||||||||||
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on November 13, 2020 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Option expire period | five years | five years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Outstanding stock options | 200 | 194 | 200 | 0 | |||||||||||||||
Compensation costs | $ | $ 9,700,000 | $ 1,300,000 | $ 0 | ||||||||||||||||
Exercise Price | $ 206 | $ 206 | $ 199.70 | $ 206 | 199.70 | ||||||||||||||
Exercise price | $ 0 | $ 0 | $ 0 | ||||||||||||||||
CHT Security Co., Ltd. (CHTSC) [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Number of common share each option is eligible | shares | 1,000 | 1,000 | |||||||||||||||||
Compensation costs | $ | $ 8,400,000 | $ 5,700,000 | $ 200,000 | ||||||||||||||||
CHT Security Co., Ltd. (CHTSC) [Member] | Granted on December 20, 2019 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Option expire period | five years | ||||||||||||||||||
Vesting period | one year | ||||||||||||||||||
Outstanding stock options | 4,328 | 3,174 | 4,328 | 4,500 | 0 | ||||||||||||||
Compensation costs | $ | $ 2,900,000 | $ 5,700,000 | $ 200,000 | ||||||||||||||||
Exercise Price | $ 19.085 | $ 19.085 | $ 19.085 | ||||||||||||||||
Shares issued | shares | 4,500,000 | ||||||||||||||||||
Exercise price | $ 19.085 | $ 19.085 | $ 19.085 | $ 19.085 | $ 0 | ||||||||||||||
CHT Security Co., Ltd. (CHTSC) [Member] | Granted on February 20, 2021 [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Outstanding stock options | 0 | 3,324 | 0 | ||||||||||||||||
Compensation costs | $ | $ 5,500,000 | $ 0 | $ 0 | ||||||||||||||||
Exercise Price | $ 19.085 | ||||||||||||||||||
Shares issued | shares | 3,500,000 | ||||||||||||||||||
Exercise price | $ 19.085 | $ 0 | |||||||||||||||||
IISI Plan [Member] | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Number of common share each option is eligible | shares | 1,000 | 1,000 | |||||||||||||||||
Option expire period | seven years | seven years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Compensation costs | $ | $ 0 | $ 0 | |||||||||||||||||
Exercise Price | $ 14 | $ 14 | |||||||||||||||||
Shares issued | shares | 1,335,000 | ||||||||||||||||||
Shares options | shares | 1,665,000 | ||||||||||||||||||
C L P T Plan | |||||||||||||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||||||||||||||||||
Number of common share each option is eligible | shares | 1,000 | ||||||||||||||||||
Option expire period | four years | four years | |||||||||||||||||
Vesting period | two years | two years | |||||||||||||||||
Outstanding stock options | 550 | ||||||||||||||||||
Compensation costs | $ | $ 900,000 | ||||||||||||||||||
Exercise Price | $ 16.87 | $ 15.90 | $ 15.90 | ||||||||||||||||
Shares issued | shares | 690,000 | ||||||||||||||||||
Exercise price | $ 0 |
Share-based Payments Arrangem_2
Share-based Payments Arrangement - SENAO's Outstanding Stock Options (Detail) - Senao International Co., Ltd. (SENAO) [Member] | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020$ / shares | Dec. 31, 2019$ / shares | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 0 | 0 | 5,318,000 |
Number of options, Options forfeited | (5,318,000) | ||
Number of options, Options outstanding at end of the year | 0 | 0 | 0 |
Number of options, Options exercisable at end of the year | 0 | ||
Weighted-average exercise price, Options outstanding at beginning of the year | $ 0 | $ 66.20 | |
Weighted-average exercise price, Options outstanding at end of the year | 0 | ||
Weighted-average exercise price, Options exercisable at end of the year | $ 0 |
Share-based Payments Arrangem_3
Share-based Payments Arrangement - Black-Scholes Model and Related Assumptions used to Evaluate Options and Fair Value of Options by SENAO (Detail) - Senao International Co., Ltd. (SENAO) [Member] | May 07, 2013TWD ($)yr$ / shares |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |
Grant-date share price | $ 93 |
Exercise price | $ 93 |
Dividend yield | 0.00% |
Risk-free interest rate | 0.91% |
Expected life | yr | 4.375 |
Expected volatility | 36.22% |
Weighted-average fair value of grants | $ | $ 28.72 |
Share-based Payments Arrangem_4
Share-based Payments Arrangement - CHIEF Share-based Compensation Plan (Detail) - CHIEF Telecom Inc. (CHIEF) [Member] | 12 Months Ended | |||||||
Dec. 31, 2021$ / shares | Sep. 30, 2021$ / shares | Dec. 31, 2020$ / shares | Nov. 13, 2020$ / shares | Jul. 31, 2020$ / shares | Jun. 30, 2019$ / shares | Oct. 31, 2018$ / shares | Dec. 19, 2017$ / shares | |
Grant Date 2015.10.22 [Member] | ||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||||||
Effective Date | 2015.11.17 | |||||||
Grant Date | 2015.10.22 | |||||||
Stock Options Units | 2,000 | |||||||
Exercise Price | $ 34.40 | |||||||
Original price | $ 43 | |||||||
Grant Date 2017.12.19 [Member] | ||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||||||
Effective Date | 2017.12.18 | |||||||
Grant Date | 2017.12.19 | |||||||
Stock Options Units | 950 | |||||||
Exercise Price | $ 128.70 | $ 128.70 | $ 132.70 | $ 132.70 | $ 135.60 | $ 140.60 | ||
Original price | $ 147 | |||||||
Granted Date 2018.10.31 [Member] | ||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||||||
Effective Date | 2017.12.18 | |||||||
Grant Date | 2018.10.31 | |||||||
Stock Options Units | 50 | |||||||
Exercise Price | $ 134.50 | 134.50 | 138.70 | $ 138.70 | $ 141.70 | $ 147 | ||
Original price | $ 147 | |||||||
Granted Date 2020.11.13 [Member] | ||||||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||||||
Effective Date | 2020.09.16 | |||||||
Grant Date | 2020.11.13 | |||||||
Stock Options Units | 200 | |||||||
Exercise Price | $ 199.70 | $ 199.70 | $ 206 | $ 206 | ||||
Original price | $ 206 |
Share-based Payment Arrangeme_4
Share-based Payment Arrangement - CHIEF's Summary of Compensation Costs for Stock Options (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | $ 19 | $ 0 | $ 8 | $ 2 |
CHIEF Telecom Inc. (CHIEF) [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 10 | 1.8 | 1.5 | |
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on October 22, 2015 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 0 | 0 | 0.3 | |
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on December 19, 2017 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 0.1 | 0.2 | 0.6 | |
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on October 31, 2018 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 0.2 | 0.3 | 0.6 | |
CHIEF Telecom Inc. (CHIEF) [Member] | Granted on November 13, 2020 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | $ 9.7 | $ 1.3 | $ 0 |
Share-based Payments Arrangem_5
Share-based Payments Arrangement - CHIEF's Outstanding Stock Options (Detail) - CHIEF Telecom Inc. (CHIEF) [Member] | 12 Months Ended | ||
Dec. 31, 2021$ / shares | Dec. 31, 2020$ / shares | Dec. 31, 2019$ / shares | |
Granted on December 19, 2017 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 427.50 | 897 | 925 |
Number of options, Options granted | 0 | ||
Number of options, Options exercised | (213.75) | (448.50) | 0 |
Number of options, Options forfeited | (0.50) | (21) | (28) |
Number of options, Options outstanding at end of the year | 213.25 | 427.50 | 897 |
Number of options, Option exercisable at end of the year | 213.25 | 213.75 | 448.50 |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 132.70 | $ 135.60 | $ 140.60 |
Weighted average exercise price, Options granted | 0 | ||
Weighted average exercise price, Options exercised | 132.70 | 135.60 | 0 |
Weighted average exercise price, Options forfeited | 0 | 0 | 0 |
Weighted-average exercise price, Options outstanding at end of the year | 128.70 | 132.70 | 135.60 |
Weighted average exercise price, Option exercisable at end of the year | $ 128.70 | $ 132.70 | $ 135.60 |
Granted on October 22, 2015 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 0 | 314.25 | 882.75 |
Number of options, Options granted | 0 | ||
Number of options, Options exercised | (314.25) | (547.25) | |
Number of options, Options forfeited | 0 | (21.25) | |
Number of options, Options outstanding at end of the year | 0 | 314.25 | |
Number of options, Option exercisable at end of the year | 0 | 314.25 | |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 0 | $ 34.40 | $ 34.40 |
Weighted average exercise price, Options granted | 0 | ||
Weighted average exercise price, Options exercised | 34.40 | 34.40 | |
Weighted average exercise price, Options forfeited | 0 | 0 | |
Weighted-average exercise price, Options outstanding at end of the year | 0 | 34.40 | |
Weighted average exercise price, Option exercisable at end of the year | $ 0 | $ 34.40 | |
Granted on October 31, 2018 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 21 | 46 | 50 |
Number of options, Options granted | 0 | ||
Number of options, Options exercised | (10.50) | (21) | 0 |
Number of options, Options forfeited | 0 | (4) | (4) |
Number of options, Options outstanding at end of the year | 10.50 | 21 | 46 |
Number of options, Option exercisable at end of the year | 0 | 0 | 0 |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 138.70 | $ 141.70 | $ 147 |
Weighted average exercise price, Options granted | 0 | ||
Weighted average exercise price, Options exercised | 134.50 | 138.70 | 0 |
Weighted average exercise price, Options forfeited | 0 | 0 | 0 |
Weighted-average exercise price, Options outstanding at end of the year | 134.50 | 138.70 | 141.70 |
Weighted average exercise price, Option exercisable at end of the year | $ 0 | $ 0 | $ 0 |
Granted on November 13, 2020 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 200 | 0 | |
Number of options, Options granted | 200 | ||
Number of options, Options exercised | 0 | 0 | |
Number of options, Options forfeited | (6) | 0 | |
Number of options, Options outstanding at end of the year | 194 | 200 | 0 |
Number of options, Option exercisable at end of the year | 0 | 0 | |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 206 | $ 0 | |
Weighted average exercise price, Options granted | 206 | ||
Weighted average exercise price, Options exercised | 0 | 0 | |
Weighted average exercise price, Options forfeited | 0 | 0 | |
Weighted-average exercise price, Options outstanding at end of the year | 199.70 | 206 | $ 0 |
Weighted average exercise price, Option exercisable at end of the year | $ 0 | $ 0 |
Share-based Payments Arrangem_6
Share-based Payments Arrangement - CHIEF's Employee Stock Options Outstanding (Detail) - CHIEF Telecom Inc. (CHIEF) [Member] | 12 Months Ended | |||||||||
Dec. 31, 2021$ / shares | Dec. 31, 2020$ / shares | Sep. 30, 2021$ / shares | Nov. 13, 2020$ / shares | Jul. 31, 2020$ / shares | Dec. 31, 2019$ / shares | Jun. 30, 2019$ / shares | Dec. 31, 2018$ / shares | Oct. 31, 2018$ / shares | Dec. 19, 2017$ / shares | |
Grant Date 2017.12.19 [Member] | ||||||||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | ||||||||||
Range of Exercise Price | $ 128.70 | $ 132.70 | $ 128.70 | $ 132.70 | $ 135.60 | $ 140.60 | ||||
Number of Options Outstanding | 213.25 | 427.50 | 897 | 925 | ||||||
Weighted-average Remaining Contractual Life (Years) | 11 months 15 days | 1 year 11 months 15 days | ||||||||
Weighted-average Exercise Price | $ 128.70 | $ 132.70 | $ 135.60 | $ 140.60 | ||||||
Options Exercisable Number of Options | 213.25 | 213.75 | 448.50 | |||||||
Option Exercisable Weighted-average Exercise Price | $ 128.70 | $ 132.70 | $ 135.60 | |||||||
Granted Date 2018.10.31 [Member] | ||||||||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | ||||||||||
Range of Exercise Price | $ 134.50 | $ 138.70 | 134.50 | $ 138.70 | $ 141.70 | $ 147 | ||||
Number of Options Outstanding | 10.50 | 21 | 46 | 50 | ||||||
Weighted-average Remaining Contractual Life (Years) | 1 year 9 months 29 days | 2 years 9 months 29 days | ||||||||
Weighted-average Exercise Price | $ 134.50 | $ 138.70 | $ 141.70 | $ 147 | ||||||
Options Exercisable Number of Options | 0 | 0 | 0 | |||||||
Option Exercisable Weighted-average Exercise Price | $ 0 | $ 0 | $ 0 | |||||||
Granted Date 2020.11.13 [Member] | ||||||||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | ||||||||||
Range of Exercise Price | $ 199.70 | $ 206 | $ 199.70 | $ 206 | ||||||
Number of Options Outstanding | 194 | 200 | 0 | |||||||
Weighted-average Remaining Contractual Life (Years) | 3 years 10 months 13 days | 4 years 10 months 13 days | ||||||||
Weighted-average Exercise Price | $ 199.70 | $ 206 | $ 0 | |||||||
Options Exercisable Number of Options | 0 | 0 | ||||||||
Option Exercisable Weighted-average Exercise Price | $ 0 | $ 0 |
Share-based Payments Arrangem_7
Share-based Payments Arrangement - Black-Scholes Model and Binomial Option Pricing Model and Related Assumptions used to Evaluate Options and Fair Value of Options by CHIEF (Detail) - CHIEF Telecom Inc. (CHIEF) [Member] | Nov. 13, 2020TWD ($)yr$ / shares | Oct. 31, 2018TWD ($)yr$ / shares | Dec. 19, 2017TWD ($)yr$ / shares | Oct. 22, 2015TWD ($)yr$ / shares |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Grant-date share price | $ 356 | $ 166 | $ 95.92 | $ 39.55 |
Exercise price | $ 206 | $ 147 | $ 147 | $ 43 |
Dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
Risk-free interest rate | 0.18% | 0.72% | 0.62% | 0.86% |
Expected life | yr | 5 | 5 | 5 | 5 |
Expected volatility | 34.61% | 16.60% | 17.35% | 21.02% |
Weighted average fair value of grants | $ | $ 173,893 | $ 33,540 | $ 2,318 | $ 4,863 |
Share-based Payment Arrangeme_5
Share-based Payment Arrangement - CHTSC's Summary of Compensation Costs for Stock Options (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | $ 19 | $ 0 | $ 8 | $ 2 |
CHT Security Co., Ltd. (CHTSC) [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 8.4 | 5.7 | 0.2 | |
CHT Security Co., Ltd. (CHTSC) [Member] | Granted on December 20, 2019 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | 2.9 | 5.7 | 0.2 | |
CHT Security Co., Ltd. (CHTSC) [Member] | Granted on February 20, 2021 [Member] | ||||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
Compensation costs | $ 5.5 | $ 0 | $ 0 |
Share-based Payments Arrangem_8
Share-based Payments Arrangement - CHTSC's Outstanding Stock Options (Detail) - CHT Security Co., Ltd. (CHTSC) [Member] | 12 Months Ended | ||
Dec. 31, 2021$ / shares | Dec. 31, 2020$ / shares | Dec. 31, 2019$ / shares | |
Granted on December 20, 2019 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 4,328 | 4,500 | 0 |
Number of options, Options granted | 0 | 4,500 | |
Number of options, Options exercised | (1,082) | ||
Number of options, Options forfeited | (72) | (172) | |
Number of options, Options outstanding at end of the year | 3,174 | 4,328 | 4,500 |
Number of options, Options exercisable at end of the year | 1,058 | 1,082 | 0 |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 19.085 | $ 19.085 | $ 0 |
Weighted average exercise price, Options granted | 0 | 19.085 | |
Weighted average exercise price, Options exercised | 19.085 | ||
Weighted average exercise price, Options forfeited | 0 | 0 | |
Weighted-average exercise price, Options outstanding at end of the year | 19.085 | 19.085 | 19.085 |
Weighted average exercise price, Option exercisable at end of the year | $ 19.085 | $ 19.085 | $ 0 |
Granted on February 20, 2021 [Member] | |||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
Number of options, Options outstanding at beginning of the year | 0 | ||
Number of options, Options granted | 3,500 | ||
Number of options, Options exercised | 0 | ||
Number of options, Options forfeited | (176) | ||
Number of options, Options outstanding at end of the year | 3,324 | 0 | |
Number of options, Options exercisable at end of the year | 0 | ||
Weighted-average exercise price, Options outstanding at beginning of the year | $ 0 | ||
Weighted average exercise price, Options granted | 19.085 | ||
Weighted average exercise price, Options exercised | 0 | ||
Weighted average exercise price, Options forfeited | 0 | ||
Weighted-average exercise price, Options outstanding at end of the year | 19.085 | $ 0 | |
Weighted average exercise price, Option exercisable at end of the year | $ 0 |
Share-based Payments Arrangem_9
Share-based Payments Arrangement - CHTSC's Employee Stock Options Outstanding (Detail) - CHT Security Co., Ltd. (CHTSC) [Member] | 12 Months Ended | |||||
Dec. 31, 2021$ / shares | Dec. 31, 2020$ / shares | Feb. 20, 2021$ / shares | Dec. 31, 2019$ / shares | Dec. 20, 2019$ / shares | Dec. 31, 2018$ / shares | |
Granted on December 20, 2019 [Member] | ||||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | ||||||
Range of Exercise Price | $ 19.085 | $ 19.085 | ||||
Number of Options Outstanding | 3,174 | 4,328 | 4,500 | 0 | ||
Weighted-average Remaining Contractual Life (Years) | 2 years 11 months 19 days | 3 years 11 months 19 days | ||||
Weighted-average Exercise Price | $ 19.085 | $ 19.085 | $ 19.085 | $ 0 | ||
Options Exercisable Number of Options | 1,058 | 1,082 | 0 | |||
Option Exercisable Weighted-average Exercise Price | $ 19.085 | $ 19.085 | $ 0 | $ 19.085 | ||
Granted on February 20, 2021 [Member] | ||||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | ||||||
Range of Exercise Price | $ 19.085 | |||||
Number of Options Outstanding | 3,324 | 0 | ||||
Weighted-average Remaining Contractual Life (Years) | 4 years 1 month 20 days | |||||
Weighted-average Exercise Price | $ 19.085 | $ 0 | ||||
Options Exercisable Number of Options | 0 | |||||
Option Exercisable Weighted-average Exercise Price | $ 0 | $ 19.085 |
Share-based Payments Arrange_10
Share-based Payments Arrangement - Black-Scholes Model and Related Assumptions used to Evaluate Options and Fair Value of Options by CHTSC (Detail) - CHT Security Co., Ltd. (CHTSC) [Member] | Feb. 20, 2021TWD ($)yr$ / shares | Dec. 20, 2019TWD ($)yr$ / shares |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Grant-date share price | $ 23.76 | $ 20.17 |
Exercise price | $ 19.085 | $ 19.085 |
Dividend yield | 15.18% | 12.49% |
Risk-free interest rate | 0.25% | 0.54% |
Expected life | yr | 5 | 5 |
Expected volatility | 47.35% | 42.41% |
Weighted average fair value of grants | $ | $ 3,350 | $ 2,470 |
Share-based Payments Arrange_11
Share-based Payments Arrangement - IISI's Outstanding Stock Options (Detail) - IISI Plan [Member] | 12 Months Ended | |
Dec. 31, 2021$ / shares | Dec. 31, 2020$ / shares | |
Granted in August 2013 [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Number of options, Options outstanding at beginning of the year | 0 | 0 |
Options outstanding upon the date of business combination | 1,022.96 | |
Number of options, Options exercised | (432.50) | |
Number of options, Options forfeited | (590.46) | |
Number of options, Options outstanding at end of the year | 0 | |
Number of options, Options exercisable at end of the year | 0 | |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 0 | $ 0 |
Options outstanding upon the date of business combination | 14 | |
Weighted average exercise price, Options exercised | 14 | |
Weighted-average exercise price, Options forfeited | 0 | |
Weighted-average exercise price, Options outstanding at end of the year | 0 | |
Weighted-average exercise price, Options exercisable at end of the year | $ 0 | |
Granted in January 2014 [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Number of options, Options outstanding at beginning of the year | 530 | 0 |
Options outstanding upon the date of business combination | 580 | |
Number of options, Options exercised | (261) | (50) |
Number of options, Options forfeited | (269) | 0 |
Number of options, Options outstanding at end of the year | 0 | 530 |
Number of options, Options exercisable at end of the year | 0 | 530 |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 14 | $ 0 |
Options outstanding upon the date of business combination | 14 | |
Weighted average exercise price, Options exercised | 14 | 14 |
Weighted-average exercise price, Options forfeited | 0 | 0 |
Weighted-average exercise price, Options outstanding at end of the year | 0 | 14 |
Weighted-average exercise price, Options exercisable at end of the year | $ 0 | $ 14 |
Share-based Payments Arrange_12
Share-based Payments Arrangement - IISI's Employee Stock Options Outstanding (Detail) - IISI Plan [Member] | 12 Months Ended | ||||
Dec. 31, 2020$ / shares | Dec. 31, 2021$ / shares | Dec. 31, 2019$ / shares | Jan. 31, 2014$ / shares | Aug. 31, 2013$ / shares | |
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | |||||
Range of Exercise Price | $ 14 | $ 14 | |||
Granted in January 2014 [Member] | |||||
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | |||||
Range of Exercise Price | $ 14 | ||||
Number of Options Outstanding | 530 | 0 | 0 | ||
Weighted-average Remaining Contractual Life (Years) | 14 days | ||||
Weighted-average Exercise Price | $ 14 | $ 0 | $ 0 | ||
Options Exercisable Number of Options | 530 | 0 | |||
Option Exercisable Weighted-average Exercise Price | $ 14 | $ 0 |
Share-based Payments Arrange_13
Share-based Payments Arrangement - Black-Scholes Model and Related Assumptions used to Evaluate Options and Fair Value of Options by IISI (Detail) - IISI Plan [Member] | Jan. 31, 2014TWD ($)yr$ / shares | Aug. 31, 2013TWD ($)yr$ / shares |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Grant-date share price | $ / shares | $ 14.51 | $ 12.51 |
Exercise price | $ / shares | $ 14 | $ 14 |
Dividend yield | 6.00% | 6.00% |
Weighted average fair value of grants | $ | $ 2,345 | $ 1,670 |
Bottom of Range [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Risk-free interest rate | 1.16% | 1.20% |
Expected life | yr | 4.5 | 4.5 |
Expected volatility | 35.28% | 36.01% |
Top of Range [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Risk-free interest rate | 1.32% | 1.39% |
Expected life | yr | 5.5 | 5.5 |
Expected volatility | 35.97% | 36.62% |
Share-based Payments Arrange_14
Share-based Payments Arrangement - CLPT's Outstanding Stock Options (Detail) - C L P T Plan | 12 Months Ended |
Dec. 31, 2021$ / shares | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |
Number of options, Options outstanding at end of the year | 550 |
Number of options, Options exercisable at end of the year | 0 |
Weighted-average exercise price, Options outstanding at end of the year | $ 15.90 |
Weighted-average exercise price, Options exercisable at end of the year | $ 0 |
Granted on February 26, 2021 [Member] | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |
Number of options, Options outstanding at beginning of the year | 0 |
Number of options, Options granted | 690 |
Number of options, Options forfeited | (140) |
Number of options, Options outstanding at end of the year | 550 |
Number of options, Options exercisable at end of the year | 0 |
Weighted-average exercise price, Options outstanding at beginning of the year | $ 0 |
Weighted average exercise price, Options granted | 16.87 |
Weighted-average exercise price, Options forfeited | 0 |
Weighted-average exercise price, Options outstanding at end of the year | 15.90 |
Weighted-average exercise price, Options exercisable at end of the year | $ 0 |
Share-based Payments Arrange_15
Share-based Payments Arrangement - CLPT's Employee Stock Options Outstanding (Detail) - C L P T Plan | 12 Months Ended | ||
Dec. 31, 2021$ / shares | Sep. 30, 2021$ / shares | Feb. 26, 2021$ / shares | |
Disclosure Of Range Of Exercise Prices Of Outstanding Share Options [Line Items] | |||
Range of Exercise Price | $ 15.90 | $ 15.90 | $ 16.87 |
Number of Options Outstanding | 550 | ||
Weighted-average Remaining Contractual Life (Years) | 3 years 1 month 28 days | ||
Weighted-average Exercise Price | $ 15.90 | ||
Options Exercisable Number of Options | 0 | ||
Option Exercisable Weighted-average Exercise Price | $ 0 |
Share-based Payments Arrange_16
Share-based Payments Arrangement - Black-Scholes Model and Related Assumptions used to Evaluate Options and Fair Value of Options by CLPT (Detail) - C L P T Plan | Feb. 26, 2021TWD ($)yr$ / shares |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |
Grant-date share price | $ 17.63 |
Exercise price | $ 16.87 |
Dividend yield | 0.00% |
Risk-free interest rate | 0.31% |
Expected life | yr | 4 |
Expected volatility | 35.22% |
Weighted average fair value of grants | $ | $ 4,750 |
Non-Cash Transactions - Non-cas
Non-Cash Transactions - Non-cash Investing Activities (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Noncash Investing Activities [Abstract] | ||||
Increase in property, plant and equipment | $ 35,613 | $ 25,195 | $ 23,164 | |
Changes in other payables | (280) | (1,684) | 1,002 | |
Acquisition of property, plant and equipment | 35,333 | $ 1,274 | 23,511 | 24,166 |
Increase in investment properties | 1 | 1,359 | 1 | |
Trade-in investment properties from asset exchange transaction (Note 16) | 0 | (1,305) | 0 | |
Acquisition of investment properties | 1 | 0 | 54 | 1 |
Increase in intangible assets | 256 | 48,605 | 363 | |
Changes in other assets | 0 | (1,000) | 0 | |
Acquisition of intangible assets | 256 | 9 | 47,605 | 363 |
Disposal of property, plant and equipment | 30 | 307 | 86 | |
Gain (loss) on disposal of property, plant and equipment | (3) | 0 | 1,428 | (38) |
Trade-in investment properties from asset exchange transaction (Note 16) | 0 | (1,305) | 0 | |
Changes in other payables | 0 | (80) | 0 | |
Changes in other current monetary assets | 0 | (31) | 0 | |
Proceeds from disposal of property, plant and equipment | 27 | 1 | 319 | 48 |
Disposal of financial assets at fair value through other comprehensive income | 2,705 | 568 | 0 | |
Changes in other current monetary assets | 271 | (271) | 0 | |
Reclassified to investment accounted for using equity method | (64) | 0 | 0 | |
Proceeds from disposal of financial assets at fair value through other comprehensive income | $ 2,912 | $ 105 | $ 297 | $ 0 |
Non-Cash Transactions - Summary
Non-Cash Transactions - Summary of Changes in Liabilities Arising From Financing Activities Including Non-cash Transactions (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Abstract] | |||
Beginning Balance | $ 9,597 | $ 9,758 | $ 10,340 |
Cash Flows from Financing Activities | (3,729) | (3,683) | (3,728) |
Changes in Non-Cash Transactions, New Leases | 4,669 | 3,796 | 3,803 |
Changes in Non-Cash Transactions, Acquired by business combination | 71 | ||
Changes in Non-Cash Transactions, Others | (195) | (265) | (572) |
Cash Flows from Operation Activities - Interest Paid | (69) | (80) | (85) |
Ending Balance | $ 10,273 | $ 9,597 | $ 9,758 |
Financial Instruments - Categor
Financial Instruments - Categories of Financial Instruments (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Financial assets | |||
Mandatorily measured at FVTPL | $ 912 | $ 687 | |
Hedging financial assets | 0 | $ 0 | 2 |
Financial assets at amortized cost (Note a) | 71,799 | 62,405 | |
Financial assets at FVOCI | 3,616 | 7,193 | |
Financial liabilities | |||
Measured at FVTPL Held for trading | 6 | 0 | |
Hedging financial liabilities | 8 | 0 | |
Measured at amortized cost (Note b) | $ 64,747 | $ 62,557 |
Financial Instruments - Assets
Financial Instruments - Assets and Liabilities related to Foreign Currency Risk (Detail) - Foreign currency risk [Member] - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
USD [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | $ 2,010 | $ 2,711 |
Foreign currency denominated monetary liabilities | 890 | 768 |
Derivatives assets | 0 | 0 |
Derivatives liabilities | 0 | 0 |
EUR [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | 49 | 15 |
Foreign currency denominated monetary liabilities | 861 | 957 |
Derivatives assets | 0 | 4 |
Derivatives liabilities | 14 | 0 |
SGD [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | 260 | 170 |
Foreign currency denominated monetary liabilities | 1,964 | 1,049 |
JPY [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | 37 | 22 |
Foreign currency denominated monetary liabilities | 13 | 10 |
RMB [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | 89 | 30 |
Foreign currency denominated monetary liabilities | 39 | 0 |
HKD [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Foreign currency denominated monetary assets | 70 | 69 |
Foreign currency denominated monetary liabilities | $ 16 | $ 8 |
Financial Instruments - Additio
Financial Instruments - Additional Information (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Foreign currency risk [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity rate | 5.00% | 5.00% | 5.00% |
Interest rate risk [member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity rate | 0.25% | 0.25% | 0.25% |
Increase decrease in pre-tax income due to sensitivity analysis | $ 31 | $ 19 | $ 15 |
Equity price risk [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity rate | 5.00% | 5.00% | 5.00% |
Equity price risk [Member] | Pre-tax profit [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Increase decrease in pretax income of financial assets at FVTPL, FVOCI | $ 46 | $ 34 | $ 39 |
Equity price risk [Member] | Pre-tax other comprehensive income [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Increase decrease in pretax income of financial assets at FVTPL, FVOCI | $ 181 | $ 360 | $ 358 |
Financial Instruments - Foreign
Financial Instruments - Foreign Currency Risk Sensitivity Analysis (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 |
Profit and loss [Member] | Financial instruments [Member] | USD [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | $ 56 | $ 97 | $ 83 |
Profit and loss [Member] | Financial instruments [Member] | EUR [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | (41) | (47) | (10) |
Profit and loss [Member] | Financial instruments [Member] | SGD [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | (85) | (44) | (52) |
Profit and loss [Member] | Financial instruments [Member] | JPY [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | 1 | 1 | 0 |
Profit and loss [Member] | Financial instruments [Member] | RMB [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | 3 | 1 | 0 |
Profit and loss [Member] | Financial instruments [Member] | HKD [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | 3 | 3 | (1) |
Profit and loss [Member] | Derivatives [Member] | USD [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | 0 | (19) | 1 |
Profit and loss [Member] | Derivatives [Member] | EUR [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | 13 | 3 | 3 |
Equity [member] | Derivatives [Member] | EUR [Member] | |||
Disclosure of detailed information about financial instruments [Line Items] | |||
Sensitivity analysis due to a 5% increase or decrease in foreign currency exchange | $ 11 | $ 10 | $ 4 |
Financial Instruments - Remaini
Financial Instruments - Remaining Contractual Maturity for Non-derivative Financial Liabilities (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | $ 76,893 | $ 73,719 |
Less Than 1 Month [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | 40,895 | 44,749 |
1-3 Months [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | 15 | 7 |
3 Months to 1 Year [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | 2,047 | 4,136 |
1-5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | 17,636 | 13,627 |
More Than 5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Non-derivative financial liabilities | 16,300 | 11,200 |
Non-interest bearing [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 48,228 | 45,052 |
Non-interest bearing [Member] | Less Than 1 Month [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 40,895 | 37,749 |
Non-interest bearing [Member] | 1-3 Months [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 0 |
Non-interest bearing [Member] | 3 Months to 1 Year [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 1,997 | 2,476 |
Non-interest bearing [Member] | 1-5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 5,336 | 4,827 |
Non-interest bearing [Member] | More Than 5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 0 |
Floating interest rate instruments [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 1,665 | 1,667 |
Floating interest rate instruments [Member] | Less Than 1 Month [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 0 |
Floating interest rate instruments [Member] | 1-3 Months [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 15 | 7 |
Floating interest rate instruments [Member] | 3 Months to 1 Year [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 50 | 1,660 |
Floating interest rate instruments [Member] | 1-5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 1,600 | 0 |
Floating interest rate instruments [Member] | More Than 5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | $ 0 | $ 0 |
Floating interest rate instruments [Member] | Weighted average [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Interest rates of bank loans | 0.95% | 0.78% |
Fixed interest rate instruments [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | $ 27,000 | $ 27,000 |
Fixed interest rate instruments [Member] | Less Than 1 Month [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 7,000 |
Fixed interest rate instruments [Member] | 1-3 Months [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 0 |
Fixed interest rate instruments [Member] | 3 Months to 1 Year [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 0 | 0 |
Fixed interest rate instruments [Member] | 1-5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | 10,700 | 8,800 |
Fixed interest rate instruments [Member] | More Than 5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Loans | $ 16,300 | $ 11,200 |
Fixed interest rate instruments [Member] | Weighted average [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Interest rates of bank loans | 0.51% | 0.50% |
Fair value interest rate risk [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Financial assets | $ 27,671 | $ 24,218 |
Financial liabilities | 37,249 | 36,576 |
Cash flow interest rate risk [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Financial assets | 14,171 | 9,306 |
Financial liabilities | $ 1,665 | $ 1,667 |
Financial Instruments - Informa
Financial Instruments - Information About the Maturity Analysis for Lease Liabilities (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Lease liabilities | $ 10,406 | $ 9,737 |
Less Than 1 Month [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Lease liabilities | 3,228 | 3,397 |
1-3 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Lease liabilities | 4,126 | 4,240 |
3-5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Lease liabilities | 1,808 | 1,691 |
More Than 5 Years [Member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Lease liabilities | $ 1,244 | $ 409 |
Financial Instruments - Liquidi
Financial Instruments - Liquidity Analysis for Derivative Financial Instruments (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows (outflows) on derivatives | $ (14) | $ 4 |
Forward exchange contracts inflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows on derivatives | 471 | 635 |
Forward exchange contracts outflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross outflows on derivatives | 485 | 631 |
Less Than 30 Days [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows (outflows) on derivatives | 0 | 0 |
Less Than 30 Days [Member] | Forward exchange contracts inflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows on derivatives | 0 | 0 |
Less Than 30 Days [Member] | Forward exchange contracts outflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross outflows on derivatives | 0 | 0 |
1-3 Months [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows (outflows) on derivatives | (14) | 4 |
1-3 Months [Member] | Forward exchange contracts inflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows on derivatives | 471 | 635 |
1-3 Months [Member] | Forward exchange contracts outflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross outflows on derivatives | 485 | 631 |
3 Months to 1 Year [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows (outflows) on derivatives | 0 | 0 |
3 Months to 1 Year [Member] | Forward exchange contracts inflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows on derivatives | 0 | 0 |
3 Months to 1 Year [Member] | Forward exchange contracts outflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross outflows on derivatives | 0 | 0 |
1-5 Years [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows (outflows) on derivatives | 0 | 0 |
1-5 Years [Member] | Forward exchange contracts inflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross inflows on derivatives | 0 | 0 |
1-5 Years [Member] | Forward exchange contracts outflows [Member] | ||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | ||
Undiscounted gross outflows on derivatives | $ 0 | $ 0 |
Financial Instruments - Financi
Financial Instruments - Financing Facilities (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Unsecured loans and commercial paper payable [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Facility of unsecured bank loan and commercial paper payable, amount used | $ 65 | $ 7,068 |
Facility of unsecured/secured bank loan and commercial paper payable, amount unused | 61,620 | 59,277 |
Facility of unsecured bank loan and commercial paper payable | 61,685 | 66,345 |
Secured loans [Member] | ||
Disclosure of detailed information about financial instruments [Line Items] | ||
Facility of secured bank loan facility, amount used | 1,600 | 1,600 |
Facility of unsecured/secured bank loan and commercial paper payable, amount unused | 0 | 20 |
Facility of secured bank loan facility | $ 1,600 | $ 1,620 |
Fair Value Information - Schedu
Fair Value Information - Schedule of Carrying Amounts of Financial Assets and Liabilities Not Measured at Fair Value (Detail) - Bonds Payable [Member] - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | ||
Carrying Value | $ 26,977 | $ 19,980 |
Fair Value | $ 27,082 | $ 20,078 |
Fair Value Information - Financ
Fair Value Information - Financial Instruments Measured at Fair Value on a Recurring Basis (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial liabilities at FVTPL derivative | $ 6 | $ 0 | |
Hedging financial liabilities | 8 | $ 0 | 0 |
Fair value on a recurring basis [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 912 | 687 | |
Hedging financial assets | 2 | ||
Financial assets at FVOCI | 3,616 | 7,193 | |
Hedging financial liabilities | 8 | ||
Fair value on a recurring basis [Member] | Derivatives [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 2 | ||
Fair value on a recurring basis [Member] | Listed stocks [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 3 | 8 | |
Financial assets at FVOCI | 459 | 2,754 | |
Fair value on a recurring basis [Member] | Non-listed stocks [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 885 | 677 | |
Financial assets at FVOCI | 3,157 | 4,439 | |
Fair value on a recurring basis [Member] | Limited Partnership [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 24 | ||
Fair value on a recurring basis [Member] | Level 1 [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 3 | 8 | |
Financial assets at FVOCI | 459 | 2,754 | |
Fair value on a recurring basis [Member] | Level 1 [Member] | Listed stocks [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 3 | 8 | |
Financial assets at FVOCI | 459 | 2,754 | |
Fair value on a recurring basis [Member] | Level 2 [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 2 | ||
Hedging financial assets | 2 | ||
Hedging financial liabilities | 8 | ||
Fair value on a recurring basis [Member] | Level 2 [Member] | Derivatives [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 2 | ||
Fair value on a recurring basis [Member] | Level 3 [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 909 | 677 | |
Financial assets at FVOCI | 3,157 | 4,439 | |
Fair value on a recurring basis [Member] | Level 3 [Member] | Non-listed stocks [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 885 | 677 | |
Financial assets at FVOCI | 3,157 | 4,439 | |
Fair value on a recurring basis [Member] | Level 3 [Member] | Limited Partnership [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial assets at FVTPL | 24 | ||
Fair value on a recurring basis [Member] | Derivatives [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial liabilities at FVTPL derivative | 6 | 0 | |
Fair value on a recurring basis [Member] | Derivatives [Member] | Level 2 [Member] | |||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | |||
Financial liabilities at FVTPL derivative | $ 6 | $ 0 |
Fair Value Information - Additi
Fair Value Information - Additional Information (Detail) - TWD ($) | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Fair Value Measurement Of Financial Instruments [Abstract] | |||
Transfer between Level 1 and 2, assets | $ 0 | $ 0 | $ 0 |
Transfer between Level 2 and 1, assets | 0 | 0 | 0 |
Transfer between Level 1 and 2, liabilities | 0 | 0 | 0 |
Transfer between Level 2 and 1, liabilities | $ 0 | $ 0 | $ 0 |
Fair Value Information - Sche_2
Fair Value Information - Schedule of Reconciliations for Financial Assets (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Fair Value Measurement Of Assets [Line Items] | |||
Reclassified to investment accounted for using equity method | $ (64) | $ 0 | $ 0 |
Level 3 [Member] | |||
Disclosure Of Fair Value Measurement Of Assets [Line Items] | |||
Beginning Balance | 5,116 | 5,478 | 4,550 |
Acquisition | 106 | 300 | |
Disposal | (5) | ||
Reclassified from investments accounted for using equity method | 2 | ||
Reclassified to investment accounted for using equity method | (64) | ||
Recognized in profit or loss under “Other gains and losses” | 251 | (101) | (39) |
Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” | (1,294) | (263) | 676 |
Proceed from return of investments | (9) | ||
Proceeds from return of capital due to capital reduction from investees | (44) | ||
Ending Balance | 4,066 | 5,116 | 5,478 |
Level 3 [Member] | Measured at Fair Value Through Profit or Loss [Member] | |||
Disclosure Of Fair Value Measurement Of Assets [Line Items] | |||
Beginning Balance | 677 | 778 | 517 |
Acquisition | 25 | 300 | |
Recognized in profit or loss under “Other gains and losses” | 251 | (101) | (39) |
Proceeds from return of capital due to capital reduction from investees | (44) | ||
Ending Balance | 909 | 677 | 778 |
Unrealized loss | 232 | (101) | (39) |
Level 3 [Member] | Measured at FVOCI [Member] | |||
Disclosure Of Fair Value Measurement Of Assets [Line Items] | |||
Beginning Balance | 4,439 | 4,700 | 4,033 |
Acquisition | 81 | ||
Disposal | (5) | ||
Reclassified from investments accounted for using equity method | 2 | ||
Reclassified to investment accounted for using equity method | (64) | ||
Recognized in other comprehensive income under “Unrealized gain or loss on financial assets at fair value through other comprehensive income” | (1,294) | (263) | 676 |
Proceed from return of investments | (9) | ||
Ending Balance | $ 3,157 | $ 4,439 | $ 4,700 |
Fair Value Information - Sche_3
Fair Value Information - Schedule of Percentage Decrease in Discount for Lack of Marketability or Noncontrolling Interests Discount (Detail) | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | ||
Growth rate of long-term revenue | 0.19% | 0.00% |
WACC | 8.50% | 0.00% |
Bottom of Range [Member] | ||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | ||
Discount for lack of marketability | 16.05% | 14.73% |
Noncontrolling interests discount | 17.29% | 17.29% |
Top of Range [Member] | ||
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] | ||
Discount for lack of marketability | 20.00% | 20.00% |
Noncontrolling interests discount | 25.00% | 25.00% |
Fair Value Information - Sche_4
Fair Value Information - Schedule of Impact of Decrease in Discount for Lack of Marketability or Noncontrolling Interests (Detail) - TWD ($) $ in Millions | 12 Months Ended | |
Dec. 31, 2021 | Dec. 31, 2020 | |
Disclosure Of Fair Value Measurement Of Financial Instruments [Abstract] | ||
Discount for lack of marketability, 5% increase | $ (32) | $ (320) |
Discount for lack of marketability, 5% decrease | 32 | 320 |
Noncontrolling interests discount, 5% increase | (19) | (47) |
Noncontrolling interests discount, 5% decrease | 19 | 47 |
Long-term revenue growth rates, 0.1% increase | 25 | 0 |
Long-term revenue growth rates, 0.1% decrease | (25) | 0 |
WACC, 1% increase | (288) | 0 |
WACC, 1% decrease | $ 350 | $ 0 |
Related Parties Transactions -
Related Parties Transactions - Summary of Related Parties (Detail) | 12 Months Ended |
Dec. 31, 2021 | |
Taiwan International Standard Electronics Co., Ltd. ("TISE") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
So-net Entertainment Taiwan Limited ("So-net") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
KKBOX Taiwan Co., Ltd. ("KKBOXTW") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
KingwayTek Technology Co., Ltd. ("KWT") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
UUPON Inc. ("UUPON") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Taiwan International Ports Logistics Corporation ("TIPL") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
International Integrated Systems, Inc. ("IISI") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Subsidiary |
Senao Networks, Inc. ("SNI") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
EnRack Tech. Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Subsidiary of the Company’s associate, Senao Networks, Inc. |
Emplus Technologies, Inc. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Subsidiary of the Company’s associate, Senao Networks, Inc. |
ST-2 Satellite Ventures Pte., Ltd. ("STS") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
CHT Infinity Singapore Pte. Ltd. (“CISG”) [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Viettel-CHT Co., Ltd. ("Viettel-CHT") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Click Force Co., Ltd. ("CF") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Alliance Digital Tech Co., Ltd. ("ADT") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Chunghwa PChome Fund I Co., Ltd. ("CPFI") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Cornerstone Ventures Co., Ltd. ("CVC") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Next Commercial Bank Co., Ltd. (“NCB”) [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
WiAdvance Technology Corporation ("WATC") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
AgriTalk Technology Inc. ("ATT") [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Imedtac Co., Ltd. (“IME”) [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Associate |
Chunghwa SEA Holdings (“CHT SEA”) [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Joint venture |
Chunghwa Telecom Foundation [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | A nonprofit organization of which the funds donated by Chunghwa exceeds one third of its total funds |
Senao Technical and Cultural Foundation [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | A nonprofit organization of which the funds donated by SENAO exceeds one third of its total funds |
Sochamp Technology Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Investor of significant influence over CHST |
E-Life Mall Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | One of the directors of E-Life Mall and a director of SENAO are members of an immediate family |
Engenius Technologies Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Engenius Technologies Co., Ltd. is a member of SENAO’s management |
Cheng Keng Investment Co., Ltd. [member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Cheng Keng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family |
Cheng Feng Investment Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Cheng Feng Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family |
All Oriented Investment Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of All Oriented Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family |
Hwa Shun Investment Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Hwa Shun Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family |
Yu Yu Investment Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Yu Yu Investment Co., Ltd. and SENAO’s chief executive officer are members of an immediate family |
Divine Fine Foods & Wine Inc. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Chairman of Divine Fine Foods & Wine Inc. and SENAO’s chief executive officer are members of an immediate family (Note 5) |
United Daily News Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Investor of significant influence over SFD |
Shenzhen Century Communication Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Investor of significant influence over SCT |
Advantech Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Investor of significant influence over IISI |
Chunghwa Post Co., Ltd. [Member] | |
Disclosure of transactions between related parties [Line Items] | |
Relationship | Government-related entity as Chunghwa Telecom |
Related Parties Transactions _2
Related Parties Transactions - Details of Transactions Between the Company and Other Related Parties (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021USD ($) | |
Disclosure of transactions between related parties [Line Items] | ||||
Revenues | $ 554 | $ 1,574 | $ 350 | |
Operating Costs and Expenses | 927 | 783 | 1,040 | |
Non-operating Income and Expenses | 41 | 40 | 45 | |
Receivables | 41 | 230 | $ 1 | |
Payables to related parties | 392 | 646 | $ 14 | |
Proceeds | 10 | 386 | ||
Gain on Disposal | 2 | 310 | ||
Associates [Member] | ||||
Disclosure of transactions between related parties [Line Items] | ||||
Revenues | 499 | 1,508 | 274 | |
Operating Costs and Expenses | 853 | 715 | 964 | |
Non-operating Income and Expenses | 38 | 37 | 41 | |
Receivables | 35 | 229 | ||
Contract liabilities-current | 183 | |||
Payables to related parties | 386 | 643 | ||
Customers' deposits | 16 | 5 | ||
Acquisition of property, plant and equipment | 398 | 375 | 242 | |
Proceeds | 10 | |||
Gain on Disposal | 2 | |||
Others [Member] | ||||
Disclosure of transactions between related parties [Line Items] | ||||
Revenues | 55 | 66 | 76 | |
Operating Costs and Expenses | 74 | 68 | 76 | |
Non-operating Income and Expenses | 3 | 3 | $ 4 | |
Receivables | 6 | 1 | ||
Payables to related parties | $ 6 | 3 | ||
Proceeds | 386 | |||
Gain on Disposal | $ 310 |
Related Parties Transactions _3
Related Parties Transactions - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | Dec. 31, 2021SGD ($) | |
Disclosure of transactions between related parties [Line Items] | ||||
Lease contract value | $ 10,273 | $ 9,597 | ||
Interest on lease liabilities | 69 | 80 | $ 85 | |
ST-2 Satellite Ventures Pte., Ltd. ("STS") [Member] | ||||
Disclosure of transactions between related parties [Line Items] | ||||
Lease contract value | 1,914 | 999 | ||
Interest on lease liabilities | $ 7 | $ 9 | $ 11 | |
ST-2 Satellite Ventures Pte., Ltd. ("STS") [Member] | ||||
Disclosure of transactions between related parties [Line Items] | ||||
Lease term | 15 years | |||
Lease contract value | $ 6,000 | $ 261 | ||
Lease contract value, prepayment amount | $ 3,068 | |||
Extended useful life | 3 years 3 months | |||
Right-of-use assets acquired | $ 1,125 |
Related Parties Transactions _4
Related Parties Transactions - Summary of Lease Liabilities (Detail) $ in Millions, $ in Millions | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) |
Disclosure of transactions between related parties [Line Items] | |||
Lease liabilities - current | $ 3,211 | $ 116 | $ 3,382 |
Lease liabilities - noncurrent | 7,062 | $ 255 | 6,215 |
Lease liabilities | 10,273 | 9,597 | |
ST-2 Satellite Ventures Pte., Ltd. ("STS") [Member] | |||
Disclosure of transactions between related parties [Line Items] | |||
Lease liabilities - current | 173 | 182 | |
Lease liabilities - noncurrent | 1,741 | 817 | |
Lease liabilities | $ 1,914 | $ 999 |
Related Parties Transactions _5
Related Parties Transactions - Compensation of Directors and Other Key Management Personnel (Detail) - TWD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Transactions Between Related Parties [Abstract] | |||
Short-term employee benefits | $ 321 | $ 290 | $ 263 |
Post-employment benefits | 7 | 11 | 9 |
Share-based payment | 2 | 0 | 0 |
Compensation of key management personnel | $ 330 | $ 301 | $ 272 |
Pledged Assets - Assets Pledged
Pledged Assets - Assets Pledged as Collaterals (Detail) - TWD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 |
Subclassifications Of Assets Liabilities And Equities [Abstract] | ||
Property, plant and equipment | $ 2,432 | $ 2,462 |
Land held under development (included in inventories) | 0 | 1,999 |
Restricted assets (included in other assets - others) | 163 | 209 |
Assets pledged as collateral | $ 2,595 | $ 4,670 |
Significant Contingent Liabil_2
Significant Contingent Liabilities and Unrecognized Commitments - Additional Information (Detail) - TWD ($) $ in Millions | 12 Months Ended | |
Dec. 31, 2021 | Aug. 15, 1996 | |
Commitments And Contingencies [Line Items] | ||
Unused letters of credit | $ 10 | |
Top of Range [Member] | Asia Pacific Telecom Co., Ltd [Member] | ||
Commitments And Contingencies [Line Items] | ||
Expected transaction amount in acquisition | $ 2,081 | |
Top of Range [Member] | Next Commercial Bank Co Ltd [Member] | ||
Commitments And Contingencies [Line Items] | ||
Ownership interest in associates | 25.00% | |
Bottom of Range [Member] | Asia Pacific Telecom Co., Ltd [Member] | ||
Commitments And Contingencies [Line Items] | ||
Expected transaction amount in acquisition | $ 1,626 | |
Piping Fund [Member] | ||
Commitments And Contingencies [Line Items] | ||
Commitment amount | $ 2,000 | |
Commitment to contribute to a Piping Fund, amount contributed | $ 1,000 | |
Commitment to contribute to a Piping Fund, remaining amount | 1,000 | |
Land and buildings [Member] | ||
Commitments And Contingencies [Line Items] | ||
Commitments for acquisitions of property, plant and equipment | 572 | |
Telecommunications equipment [Member] | ||
Commitments And Contingencies [Line Items] | ||
Commitments for acquisitions of property, plant and equipment | $ 21,630 |
Significant Subsequent Events -
Significant Subsequent Events - Additional Information (Detail) $ in Millions, $ in Millions | 1 Months Ended | |||
Jan. 31, 2022TWD ($) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | |
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] | ||||
Unsecured domestic bonds | $ 27,000 | $ 20,000 | ||
Investments accounted for using equity method | $ 7,137 | $ 257 | $ 6,695 | |
Issuance of Unsecured Domestic Bonds [Member] | ||||
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] | ||||
Unsecured domestic bonds | $ 10,000 | |||
Issuance Period | 10 years | |||
Taiwania Capital Buffalo Fund VI, L.P. [Member] | ||||
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] | ||||
Investments accounted for using equity method | $ 600 |
Segment Information - Analysis
Segment Information - Analysis by Reportable Segment of Revenue and Operating Results of Continuing Operations (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 |
Income (loss) before income tax | 46,067 | $ 1,661 | 42,826 | 41,867 |
From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 210,478 | 207,609 | 207,520 | |
Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 31,156 | 28,676 | 28,573 | |
Consolidated [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 210,478 | 207,609 | 207,520 | |
Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 241,634 | 236,285 | 236,093 | |
Intersegment Elimination [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | (31,156) | (28,676) | (28,573) | |
Domestic Fixed Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Income (loss) before income tax | 26,142 | 22,504 | 19,537 | |
Domestic Fixed Communications Business [Member] | From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 64,780 | 69,469 | 65,728 | |
Domestic Fixed Communications Business [Member] | Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 17,430 | 15,930 | 16,065 | |
Domestic Fixed Communications Business [Member] | Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 82,210 | 85,399 | 81,793 | |
Mobile Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Income (loss) before income tax | 6,362 | 8,777 | 11,250 | |
Mobile Communications Business [Member] | From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 95,249 | 90,230 | 95,469 | |
Mobile Communications Business [Member] | Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 1,588 | 1,536 | 1,564 | |
Mobile Communications Business [Member] | Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 96,837 | 91,766 | 97,033 | |
Internet Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Income (loss) before income tax | 14,512 | 13,120 | 12,515 | |
Internet Business [Member] | From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 33,082 | 32,115 | 30,091 | |
Internet Business [Member] | Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 3,869 | 3,966 | 3,951 | |
Internet Business [Member] | Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 36,951 | 36,081 | 34,042 | |
International Fixed Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Income (loss) before income tax | 1,165 | 829 | 799 | |
International Fixed Communications Business [Member] | From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 9,096 | 8,695 | 11,485 | |
International Fixed Communications Business [Member] | Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 2,009 | 1,875 | 2,079 | |
International Fixed Communications Business [Member] | Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 11,105 | 10,570 | 13,564 | |
Other [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Income (loss) before income tax | (2,114) | (2,404) | (2,234) | |
Other [Member] | From External Customers [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 8,271 | 7,100 | 4,747 | |
Other [Member] | Intersegment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | 6,260 | 5,369 | 4,914 | |
Other [Member] | Segment [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Revenues | $ 14,531 | $ 12,469 | $ 9,661 |
Segment Information - Other Seg
Segment Information - Other Segment Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | $ 421 | $ 15 | $ 244 | $ 459 |
Interest income | 95 | 3 | 116 | 251 |
Interest expense | 218 | 8 | 206 | 104 |
Operating costs and expenses | 165,179 | 166,843 | 166,747 | |
Depreciation and amortization | 39,216 | 37,138 | 36,349 | |
Capital expenditure | 35,333 | 1,274 | 23,511 | 24,166 |
Gain (loss) on disposal of property, plant and equipment | (3) | 0 | 1,428 | (38) |
Gain on disposal of investment properties, net | 0 | 0 | 151 | 0 |
Impairment loss on right-of-use assets | 420 | 0 | 0 | |
Impairment loss on property, plant and equipment | 0 | 0 | 0 | 93 |
Reversal of impairment loss on investment properties | 83 | 3 | 27 | 57 |
Impairment loss on intangible assets | 29 | 9 | 9 | |
Impairment loss on other assets | 0 | $ 0 | 0 | 44 |
Domestic Fixed Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | 0 | 0 | 0 | |
Interest income | 7 | 13 | 15 | |
Interest expense | 4 | 6 | 5 | |
Operating costs and expenses | 51,013 | 59,371 | 56,269 | |
Depreciation and amortization | 13,978 | 14,250 | 14,842 | |
Capital expenditure | 13,299 | 11,483 | 12,071 | |
Gain (loss) on disposal of property, plant and equipment | 1,442 | |||
Gain on disposal of investment properties, net | 151 | |||
Impairment loss on right-of-use assets | 0 | |||
Impairment loss on property, plant and equipment | 0 | |||
Reversal of impairment loss on investment properties | 83 | 27 | 57 | |
Impairment loss on intangible assets | 0 | 0 | 0 | |
Impairment loss on other assets | 13 | |||
Mobile Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | 0 | 0 | 0 | |
Interest income | 4 | 5 | 9 | |
Interest expense | 48 | 56 | 58 | |
Operating costs and expenses | 74,973 | 69,211 | 72,952 | |
Depreciation and amortization | 20,313 | 17,800 | 16,254 | |
Capital expenditure | 16,809 | 8,827 | 7,773 | |
Gain (loss) on disposal of property, plant and equipment | (3) | |||
Gain on disposal of investment properties, net | 0 | |||
Impairment loss on right-of-use assets | 0 | |||
Impairment loss on property, plant and equipment | 0 | |||
Reversal of impairment loss on investment properties | 0 | 0 | 0 | |
Impairment loss on intangible assets | 29 | 9 | 9 | |
Impairment loss on other assets | 0 | |||
Internet Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | 0 | 0 | 0 | |
Interest income | 13 | 17 | 20 | |
Interest expense | 1 | 1 | 1 | |
Operating costs and expenses | 14,150 | 15,241 | 13,850 | |
Depreciation and amortization | 2,471 | 2,669 | 2,914 | |
Capital expenditure | 2,943 | 1,397 | 1,425 | |
Gain (loss) on disposal of property, plant and equipment | 0 | |||
Gain on disposal of investment properties, net | 0 | |||
Impairment loss on right-of-use assets | 0 | |||
Impairment loss on property, plant and equipment | 0 | |||
Reversal of impairment loss on investment properties | 0 | 0 | 0 | |
Impairment loss on intangible assets | 0 | 0 | 0 | |
Impairment loss on other assets | 13 | |||
International Fixed Communications Business [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | 0 | 0 | 0 | |
Interest income | 5 | 22 | 41 | |
Interest expense | 8 | 10 | 12 | |
Operating costs and expenses | 8,409 | 8,573 | 11,427 | |
Depreciation and amortization | 1,417 | 1,450 | 1,547 | |
Capital expenditure | 445 | 779 | 1,117 | |
Gain (loss) on disposal of property, plant and equipment | 0 | |||
Gain on disposal of investment properties, net | 0 | |||
Impairment loss on right-of-use assets | 420 | |||
Impairment loss on property, plant and equipment | 0 | |||
Reversal of impairment loss on investment properties | 0 | 0 | 0 | |
Impairment loss on intangible assets | 0 | 0 | 0 | |
Impairment loss on other assets | 0 | |||
Other [Member] | ||||
Disclosure Of Operating Segments [Line Items] | ||||
Share of profits of associates and joint ventures accounted for using equity method | 421 | 244 | 459 | |
Interest income | 66 | 59 | 166 | |
Interest expense | 157 | 133 | 28 | |
Operating costs and expenses | 16,634 | 14,447 | 12,249 | |
Depreciation and amortization | 1,037 | 969 | 792 | |
Capital expenditure | 1,837 | 1,025 | 1,780 | |
Gain (loss) on disposal of property, plant and equipment | (11) | |||
Gain on disposal of investment properties, net | 0 | |||
Impairment loss on right-of-use assets | 0 | |||
Impairment loss on property, plant and equipment | 93 | |||
Reversal of impairment loss on investment properties | 0 | 0 | 0 | |
Impairment loss on intangible assets | $ 0 | $ 0 | 0 | |
Impairment loss on other assets | $ 18 |
Segment Information - Main Prod
Segment Information - Main Products and Service Revenues (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Products And Services [Line Items] | ||||
Revenues | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 |
Mobile services [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 58,048 | 56,724 | 58,703 | |
Sales of products [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 42,907 | 39,391 | 41,593 | |
Local telephone and domestic long distance telephone services [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 25,704 | 26,475 | 27,929 | |
Broadband access and domestic leased line services [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 23,012 | 22,420 | 22,116 | |
Data communications internet services [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 22,281 | 21,447 | 21,003 | |
International network and leased line services revenue [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | 4,367 | 3,884 | 7,066 | |
Others [Member] | ||||
Disclosure Of Products And Services [Line Items] | ||||
Revenues | $ 34,159 | $ 37,268 | $ 29,110 |
Segment Information - Geographi
Segment Information - Geographic Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | |||
Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | Dec. 31, 2020TWD ($) | Dec. 31, 2019TWD ($) | |
Disclosure Of Geographical Areas [Line Items] | ||||
Revenues | $ 210,478 | $ 7,588 | $ 207,609 | $ 207,520 |
Taiwan,ROC[Member] | ||||
Disclosure Of Geographical Areas [Line Items] | ||||
Revenues | 204,473 | 200,881 | 197,895 | |
Overseas [Member] | ||||
Disclosure Of Geographical Areas [Line Items] | ||||
Revenues | $ 6,005 | $ 6,728 | $ 9,625 |
Segment Information - Additiona
Segment Information - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended | ||
Dec. 31, 2020TWD ($) | Dec. 31, 2021TWD ($) | Dec. 31, 2021USD ($) | |
Disclosure Of Operating Segments [Line Items] | |||
Long-lived assets | $ 424,377 | $ 421,854 | $ 15,208 |
Information about major customers | Company did not have any single customer whose revenue exceeded 10% of the total revenues | ||
Overseas [Member] | |||
Disclosure Of Operating Segments [Line Items] | |||
Long-lived assets | $ 3,746 | $ 3,234 |