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Other Payables - Summary of Other Payables (Detail) $ in Millions, $ in Millions | Dec. 31, 2019 TWD ($) | Dec. 31, 2019 USD ($) | Jan. 01, 2019 TWD ($) | Dec. 31, 2018 TWD ($)
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Trade And Other Current Payables [Abstract] |  |  |  |
Accrued salary and compensation | $ 9,482 |  |  | $ 9,041
Payables to contractors | 1,892 |  |  | 1,710
Accrued compensation to employees and remuneration to directors and supervisors | 1,441 |  |  | 1,739
Amounts collected for others | 1,279 |  |  | 1,226
Accrued franchise fees | 1,091 |  |  | 1,151
Accrued maintenance costs | 955 |  |  | 1,050
Payables to equipment suppliers | 296 |  |  | 1,459
Others | 6,517 |  |  | 5,939
Total | $ 22,953 | $ 767 | $ 23,267 | $ 23,315

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- Definition The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78&doctype=Standard -URIDate 2019-03-27 + Details
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