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Prepayments - Summary of Prepayments (Detail) $ in Millions, $ in Millions | Dec. 31, 2020 TWD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 TWD ($)
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Prepayments [Abstract] |  |  |
Prepaid rents | $ 2,864 |  | $ 3,382
Others | 1,656 |  | 1,180
Prepayments | 4,520 |  | 4,562
Prepaid rents | 652 |  | 704
Others | 1,654 |  | 1,179
Current prepayments | 2,306 | $ 82 | 1,883
Prepaid rents | 2,212 |  | 2,678
Others | 2 |  | 1
Noncurrent prepayments | $ 2,214 | $ 79 | $ 2,679

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- Definition Current prepaid rents. + References No definition available. + Details
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- Definition Non-current prepaid rents. + References No definition available. + Details
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- Definition Other current prepayments. + References No definition available. + Details
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- Definition Other non-current prepayments. + References No definition available. + Details
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- Definition Other prepayments. + References No definition available. + Details
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- Definition Prepaid rents. + References No definition available. + Details
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- Definition Prepayments. + References No definition available. + Details
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- Definition The amount of current prepayments. [Refer: Prepayments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of non-current prepayments. [Refer: Prepayments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Receivables that represent amounts paid for goods and services before they have been delivered. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_b&doctype=Standard -URIDate 2020-01-01 + Details
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