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Lease Arrangements - Summary of Range of Discount Rate for Lease Liabilities (Details) - Discount Rate [Member] - Lease Liabilities [Member]	Dec. 31, 2022	Dec. 31, 2021
Top of Range [Member] | Handsets Base Stations [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0171	0.0118
Top of Range [Member] | Others [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0900	0.0900
Top of Range [Member] | Equipment [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0299	0.0299
Bottom of Range [Member] | Handsets Base Stations [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0037	0.0037
Bottom of Range [Member] | Others [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0037	0.0037
Bottom of Range [Member] | Equipment [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Range of discount rate	0.0037	0.0037

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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