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Financial Assets at Amortized Cost (Tables) | 12 Months Ended
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Dec. 31, 2022
Text Block [Abstract] |
Schedule of Financial Assets at Amortized Cost |
|  | December 31, 2021 |  |  | December 31, 2022 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |
Corporate bonds |  | $ | 5,310.1 |  |  | $ | 81,041.0 |
Commercial paper |  |  | — |  |  |  | 48,742.8 |
Less: Allowance for impairment loss |  |  | (3.1 | ) |  |  | (56.4 | )
|  | $ | 5,307.0 |  |  | $ | 129,727.4 |
Current |  | $ | 3,773.6 |  |  | $ | 94,600.2 |
Noncurrent |  |  | 1,533.4 |  |  |  | 35,127.2 |
|  | $ | 5,307.0 |  |  | $ | 129,727.4 |

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