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Lease Arrangements - Lease Liabilities (Detail)
$ in Millions, $ in Millions
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Lease liabilities [abstract]      
Current portion (classified under accrued expenses and other current liabilities) $ 2,603.5   $ 2,176.5
Noncurrent portion 29,764.1 $ 968.6 20,764.2
Lease liabilities $ 32,367.6   $ 22,940.7