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Interest Income | 12 Months Ended
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Dec. 31, 2020
Text Block [Abstract] |
Interest Income |
25. | INTEREST INCOME
|  | Years Ended December 31 |
|  | 2018 |  |  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Interest income |  |  |  |  |  |  |  |  |  |  |  |
Bank deposit s |  | $ | 10,310.7 |  |  | $ | 11,454.0 |  |  | $ | 5,139.1 |
Financial assets at FVTPL |  |  | 382.7 |  |  |  | 339.5 |  |  |  | 2.5 |
Financial assets at FVTOCI |  |  | 3,078.6 |  |  |  | 3,476.2 |  |  |  | 3,121.9 |
Financial assets at amortized cost |  |  | 922.4 |  |  |  | 919.7 |  |  |  | 754.9 |
|  | $ | 14,694.4 |  |  | $ | 16,189.4 |  |  | $ | 9,018.4 |

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- Definition The disclosure of interest income. [Refer: Interest income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Text block [abstract]. + References No definition available. + Details
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