XML 140 R126.htm IDEA: XBRL DOCUMENT v3.25.1
Property, Plant and Equipment - Summary of Future Aggregate Lease Collection under Operating Lease for Freehold Plant, Property and Equipment - Assets Subject to Operating Leases (Detail) - TWD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment $ 2,427 $ 1,082
Year 1 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 274 168
Year 2 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 248 157
Year 3 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 217 134
Year 4 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 192 105
Year 5 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 190 83
Onwards [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 1,306 435
Property, plant and equipment subject to operating leases [member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 916 2,228
Property, plant and equipment subject to operating leases [member] | Year 1 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 305 381
Property, plant and equipment subject to operating leases [member] | Year 2 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 198 279
Property, plant and equipment subject to operating leases [member] | Year 3 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 122 221
Property, plant and equipment subject to operating leases [member] | Year 4 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 92 176
Property, plant and equipment subject to operating leases [member] | Year 5 [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment 62 146
Property, plant and equipment subject to operating leases [member] | Onwards [Member]    
Disclosure Of Property Plant And Equipment [Line Items]    
Future aggregate lease collection under operating lease for freehold plant, property and equipment $ 137 $ 1,025