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Other Gains and Losses, Net | 12 Months Ended
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Dec. 31, 2022
Text Block [Abstract] |
Other Gains and Losses, Net |
26. | OTHER GAINS AND LOSSES, NET
|  | Years Ended December 31 |
|  | 2020 |  |  | 2021 |  |  | 2022 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Gain (loss) on disposal of financial assets, net |  |  |  |  |  |  |  |  |  |  |  |
Investments in debt instruments at FVTOCI |  | $ | 1,439.4 |  |  | $ | 93.2 |  |  | $ | (410.1 | )
Gain (loss) on financial instruments at FVTPL, net |  |  |  |  |  |  |  |  |  |  |  |
Mandatorily measured at FVTPL |  |  | 8,244.5 |  |  |  | (7,973.6 | ) |  |  | (622.5 | )
The reversal (accrual) of expected credit loss of financial assets |  |  |  |  |  |  |  |  |  |  |  |
Investments in debt instruments at FVTOCI |  |  | 0.9 |  |  |  | (1.3 | ) |  |  | (0.9 | )
Financial assets at amortized cost |  |  | (4.6 | ) |  |  | 4.0 |  |  |  | (51.5 | )
Other gains, net |  |  | 426.2 |  |  |  | 489.7 |  |  |  | 72.8 |
|  | $ | 10,106.4 |  |  | $ | (7,388.0 | ) |  | $ | (1,012.2 | )

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