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Prepayments - Summary of Prepayments (Detail)
$ in Millions, $ in Millions
Dec. 31, 2024
TWD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
TWD ($)
Prepayments [Abstract]      
Prepaid rents $ 1,762   $ 2,143
Prepayments for leases - satellite 3,129   1,729
Others 2,708   2,298
Prepayments 7,599   6,170
Prepaid rents 497   581
Others 2,641   2,259
Current prepayments 3,138 $ 96 2,840
Prepaid rents 1,265   1,562
Prepayments for leases - satellite 3,129   1,729
Others 67   39
Noncurrent prepayments $ 4,461 $ 136 $ 3,330