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Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Summary of Annual Depreciation Rates (Detail)
 12 Months Ended
Dec. 31, 2023
Bottom of range [member] | Network infrastructure [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 5.00%
Bottom of range [member] | Buildings and leasehold improvements [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 2.00%
Bottom of range [member] | Other assets [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 10.00%
Top of range [member] | Network infrastructure [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 33.00%
Top of range [member] | Buildings and leasehold improvements [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 33.00%
Top of range [member] | Other assets [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Annual depreciation rates 50.00%