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Cash and Cash Equivalents | 12 Months Ended
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Dec. 31, 2020
Cash And Cash Equivalents [Abstract] |
Cash and Cash Equivalents |
7. | CASH AND CASH EQUIVALENTS
|  | December 31 |
|  | 2019 |  |  | 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |
Cash |  |  |  |  |  |  |  |
Cash on hand |  | $ | 353 |  |  | $ | 487 |
Bank deposits |  |  | 9,433 |  |  |  | 10,961 |
|  |  | 9,786 |  |  |  | 11,448 |
Cash equivalents (investments with maturities of less than three months) |  |  |  |  |  |  |  |
Commercial paper |  | $ | 20,110 |  |  | $ | 14,061 |
Negotiable certificates of deposit |  |  | 1,700 |  |  |  | 2,600 |
Time deposits |  |  | 2,451 |  |  |  | 2,308 |
Repurchase agreements collateralized by bonds |  |  | 3 |  |  |  | — |
Government stimulus vouchers |  |  | — |  |  |  | 3 |
|  |  | 24,264 |  |  |  | 18,972 |
|  | $ | 34,050 |  |  | $ | 30,420 |
The annual yield rates of bank deposits, commercial paper, negotiable certificates of deposit, time deposits and repurchase agreements collateralized by bonds as of balance sheet dates were as follows:
|  | December 31 |
|  | 2019 |  |  | 2020 |
Bank deposits |  | 0.00%-0.74% |  |  | 0.00%-0.40% |
Commercial paper |  | 0.47%-0.54% |  |  | 0.14%-0.26% |
Negotiable certificates of deposit |  | 0.58%-0.60% |  |  | 0.24%-0.30% |
Time deposits |  | 0.09%-4.40% |  |  | 0.10%-3.60% |
Repurchase agreements collateralized by bonds |  | 1.90% |  |  |  | — |

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- Definition The disclosure of cash and cash equivalents. [Refer: Cash and cash equivalents] + 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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