Lease Arrangements - Lease Liabilities (Detail) $ in Millions, $ in Millions |
Dec. 31, 2023
TWD ($)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
TWD ($)
|
|---|---|---|---|
| Lease liabilities [abstract] | |||
| Current portion (classified under accrued expenses and other current liabilities) | $ 2,810.6 | $ 2,603.5 | |
| Noncurrent portion | 28,681.8 | $ 936.7 | 29,764.1 |
| Lease liabilities | $ 31,492.4 | $ 32,367.6 |